Memory management and ARC
The sample list has two names and one heap object. Luce keeps the object alive while either name can reach it, then destroys it after the last owner goes away. The compiler inserts the required retain and release operations from source scopes and types.
Follow one reference lifetime
MIR shows where the compiler transfers, retains, and drops reference storage. LLVM turns those into calls to the shared ARC runtime. ARM64 shows those calls and the status branches around the list append and final releases.
Compiler traceFollow one program through four representations
compiler build information
Luce source. Names and indentation describe the program for a reader.
open source file
func main(args: list[str]):
let values = [len(args)]
let shared = values
shared.append(42)
print(str(len(values)))
Luce MIR. Types, registers, blocks, calls, and lifetime operations form the instruction plan sent to the LLVM backend.
open MIR fileMIR instruction guide hover, focus, or tap dotted terms
r7 is one typed intermediate value, %2 is a local storage slot, and b1 is a basic block. Read each block from top to bottom, then follow its final control-flow instruction.
Hover or focus a dotted term in the file for its explanation. On a touch screen, tap a term to keep the note open and tap elsewhere to close it. The list includes the operations that appear in this file.
func …- Starts one MIR function and lists the source-level parameters with their resolved types.
local %N- Reserves a typed local slot. The slot gives later blocks a stable place to read or replace.
b0, b1, …- Names a basic block. Control enters at the label and runs until a branch, jump, trap, or return chooses what happens next.
r0, r1, …- Names one typed intermediate result. Each register is assigned once, which makes data flow explicit.
local_get- Reads a local slot into a fresh MIR register so this use has a precise value and type.
local_set- Writes a register into a local slot. Later blocks read that slot after control-flow paths join.
const- Creates a typed literal such as 2 or 10 inside the instruction stream.
intrinsic NAME- Invokes a language operation with runtime rules recorded by the compiler. The name identifies the operation.
intrinsic len- Reads the logical length defined by the value's type, such as argument count or Unicode-scalar count.
intrinsic str_value- Converts a typed value into owned text through Luce's string conversion rules.
intrinsic print- Sends text through the installed host output capability.
intrinsic append_value- Appends a value to a list and applies the element's ownership rule during storage.
intrinsic retain- Adds one strong owner before another place begins holding the same reference.
intrinsic release- Removes one strong owner and runs destruction when the count reaches zero.
intrinsic drop_storage- Releases any reference held by a temporary value and leaves that temporary in its empty state.
heap_new- Allocates a runtime object row for a class or other reference-backed value.
ret- Returns the current function's result to its caller and closes the current control-flow path.
func main(args: list[str]) -> None
local %1 (temporary): list[i64]
local %2 values: list[i64]
local %3 shared: list[i64]
local %4 (temporary): str
b0:
r0 = local_get %0
r1 = intrinsic len, r0
r2 = heap_new list[i64]
intrinsic append_value, r2, r1
local_set %2, r2
r5 = local_get %2
intrinsic retain, r5
local_set %3, r5
r8 = local_get %3
r9 = const 42
intrinsic append_value, r8, r9
r11 = local_get %2
r12 = intrinsic len, r11
r13 = intrinsic str_value, r12
local_set %4, r13
intrinsic print, r13
r16 = local_get %4
r17 = intrinsic drop_storage, r16
local_set %4, r17
r19 = local_get %3
intrinsic release, r19
r21 = local_get %2
intrinsic release, r21
ret
LLVM IR. The backend expands MIR into typed memory operations, calls, checks, and control-flow blocks for LLVM.
open LLVM IR fileLLVM IR instruction guide hover, focus, or tap dotted terms
%7 is an SSA value, i64 is a 64-bit integer type, ptr is a pointer, and @name is a module symbol. Numbered labels divide the function into basic blocks.
Hover or focus a dotted term in the file for its explanation. On a touch screen, tap a term to keep the note open and tap elsewhere to close it. The list includes the operations that appear in this file.
@name = …- Defines module data such as text constants, source positions, function records, and the artifact identity tag.
define … @name- Begins a generated function. The parameter attributes tell LLVM which pointers are valid, writable, or read-only.
declare … @name- Declares a runtime or LLVM helper whose body is provided elsewhere.
numeric label- Starts an LLVM basic block. Every branch names one of these labels as its destination.
%0, %1, …- Names an SSA value. Each name is assigned once, allowing LLVM to trace definitions and uses directly.
alloca- Reserves a stack slot for a local value, return area, or temporary aggregate.
getelementptr- Calculates the address of a field or indexed element while preserving LLVM's type and bounds information.
load- Copies a typed value from memory into an SSA value.
store- Copies an SSA value into a stack slot, object field, return area, or runtime structure.
icmp- Compares integers or pointers and produces the one-bit condition consumed by a branch or select.
br- Transfers control to another block. With an
i1operand it chooses between two destinations. select- Chooses one of two SSA values from a condition, which can become a branch-free machine instruction.
call- Invokes a generated function, a runtime helper, a host callback, or an LLVM intrinsic.
extractvalue- Reads one field from an SSA aggregate, such as the result and overflow bit returned together.
insertvalue- Builds an SSA aggregate one field at a time.
ptrtoint- Encodes a pointer as an integer field inside Luce's uniform runtime value representation.
inttoptr- Recovers a pointer from the integer field of Luce's uniform runtime value representation.
zext- Widens an unsigned value by filling the new high bits with zero.
trunc- Keeps the low bits while converting to a narrower integer representation.
lshr- Shifts bits right and fills the high side with zero; this is useful for unpacking handle fields.
and- Combines or masks bits, often to inspect a flag in a packed handle or status value.
or- Sets or combines bits in a packed value.
add- Adds integer values or address-related offsets under the flags attached to the instruction.
mul- Multiplies integers after the language-specific checks have been represented.
ret- Returns a status or value and ends the current basic block.
@llvm.memcpy.inline- Copies a small fixed-size value representation; LLVM can expand it directly for the target.
@luce_rt_open- Creates the per-run runtime state and installs the table used to turn function numbers into source-aware traces.
@luce_rt_close- Closes the per-run runtime state after the final status and reports have been collected.
@luce_rt_args_list- Builds the owned
list[str]passed tomainfrom the host's argument callbacks. @luce_rt_status- Combines the generated function result with runtime trap, error, exhaustion, and exit state.
@luce_rt_report_error- Sends an uncaught recoverable error through the host's error-report callback.
@luce_rt_report- Sends the completed trap report through the host callback selected by the entry wrapper.
@luce_rt_leaked- Reads the live-object count used to detect references that remain after program cleanup.
@luce_rt_exhaust- Records allocation exhaustion in the current run so the entry wrapper returns the corresponding status.
@luce_rt_raise- Records a source-aware trap in the runtime so every execution path reports the same code and location.
@luce_rt_unwound- Adds one generated function frame while a trap or uncaught error travels toward the entry point.
@luce_rt_retain- Adds a strong owner to a runtime object handle.
@luce_rt_release- Removes a strong owner and triggers destruction at zero.
@luce_rt_drop_storage- Releases reference-bearing fields in a temporary runtime value.
@luce_rt_str- Converts a uniform runtime value into owned UTF-8 text.
@luce_rt_append- Appends an element through the runtime's list or builder storage and ownership rules.
@luce_rt_new_list- Allocates the runtime object that owns a list buffer.
@luce_rt_files_install- Copies file-related callbacks from the host table into the current runtime context.
@luce_rt_sockets_install- Copies network callbacks from the host table into the current runtime context.
@luce_rt_graphics_install- Copies window and graphics callbacks from the host table into the current runtime context.
!prof- Attaches branch-probability metadata so LLVM can place common and failure paths efficiently.
; ModuleID = '/Users/sedov/Dev/luciaos/www/lucelang/examples/memory.luc'
source_filename = "/Users/sedov/Dev/luciaos/www/lucelang/examples/memory.luc"
target triple = "arm64-apple-darwin24.6.0"
@luce.text.0 = private unnamed_addr constant [0 x i8] zeroinitializer
@luce.text.1 = private unnamed_addr constant [21 x i8] c"null object reference"
@luce.text.2 = private unnamed_addr constant [22 x i8] c"object used after free"
@luce.text.3 = private unnamed_addr constant [24 x i8] c"host service unavailable"
@luce.text.4 = private unnamed_addr constant [4 x i8] c"main"
@luce.text.5 = private unnamed_addr constant [57 x i8] c"/Users/sedov/Dev/luciaos/www/lucelang/examples/memory.luc"
@luce.origins.0 = private constant [24 x { i32, i32 }] [{ i32, i32 } { i32 2, i32 5 }, { i32, i32 } { i32 2, i32 5 }, { i32, i32 } { i32 2, i32 5 }, { i32, i32 } { i32 2, i32 5 }, { i32, i32 } { i32 2, i32 5 }, { i32, i32 } { i32 3, i32 5 }, { i32, i32 } { i32 3, i32 5 }, { i32, i32 } { i32 3, i32 5 }, { i32, i32 } { i32 4, i32 5 }, { i32, i32 } { i32 4, i32 5 }, { i32, i32 } { i32 4, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }, { i32, i32 } { i32 5, i32 5 }]
@luce.functions = private constant [1 x { ptr, i64, ptr, i64, ptr, i64 }] [{ ptr, i64, ptr, i64, ptr, i64 } { ptr @luce.text.4, i64 4, ptr @luce.text.5, i64 57, ptr @luce.origins.0, i64 24 }]
@luce.text.6 = private unnamed_addr constant [19 x i8] c"call depth exceeded"
@luce_artifact = constant { i64, i64, i64, i32, i32, i32, i32, { i32, [52 x i8] } } { i64 23734338332087628, i64 0, i64 -7092229304759745108, i32 3, i32 29, i32 1, i32 0, { i32, [52 x i8] } { i32 18, [52 x i8] c"aarch64-macos-none\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00" } }
define internal i32 @luce.0.main(ptr align 8 nocapture readonly nonnull dereferenceable(472) noundef %0, ptr align 8 nocapture nonnull noundef %1, i64 noundef %2, i64 %3) {
4:
%5 = alloca i64, align 8
%6 = alloca i64, align 8
%7 = alloca i64, align 8
%8 = alloca i64, align 8
%9 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
store i64 %3, ptr %5, align 8
store i64 4294967295, ptr %6, align 8
store i64 4294967295, ptr %7, align 8
store i64 4294967295, ptr %8, align 8
%10 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 0
store i8 4, ptr %10, align 1
%11 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 1
store i8 -1, ptr %11, align 1
%12 = extractvalue { ptr, i64 } { ptr @luce.text.0, i64 0 }, 0
%13 = ptrtoint ptr %12 to i64
%14 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 3
store i64 %13, ptr %14, align 8
%15 = extractvalue { ptr, i64 } { ptr @luce.text.0, i64 0 }, 1
%16 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 4
store i64 %15, ptr %16, align 8
%17 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%18 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %17, i32 0, i32 0
store i8 2, ptr %18, align 1
%19 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %17, i32 0, i32 4
store i64 0, ptr %19, align 8
%20 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%21 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%22 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %21, i32 0, i32 0
store i8 6, ptr %22, align 1
%23 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %21, i32 0, i32 4
store i64 0, ptr %23, align 8
%24 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%25 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %24, i32 0, i32 0
store i8 2, ptr %25, align 1
%26 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %24, i32 0, i32 4
store i64 0, ptr %26, align 8
%27 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%28 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %27, i32 0, i32 0
store i8 6, ptr %28, align 1
%29 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %27, i32 0, i32 4
store i64 0, ptr %29, align 8
%30 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%31 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %30, i32 0, i32 0
store i8 6, ptr %31, align 1
%32 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %30, i32 0, i32 4
store i64 0, ptr %32, align 8
%33 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%34 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %33, i32 0, i32 0
store i8 2, ptr %34, align 1
%35 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %33, i32 0, i32 4
store i64 0, ptr %35, align 8
%36 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%37 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %36, i32 0, i32 0
store i8 2, ptr %37, align 1
%38 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %36, i32 0, i32 4
store i64 0, ptr %38, align 8
%39 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%40 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%41 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%42 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %41, i32 0, i32 0
store i8 6, ptr %42, align 1
%43 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %41, i32 0, i32 4
store i64 0, ptr %43, align 8
%44 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%45 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %44, i32 0, i32 0
store i8 6, ptr %45, align 1
%46 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %44, i32 0, i32 4
store i64 0, ptr %46, align 8
br label %47
47:
%48 = load i64, ptr %5, align 8
%49 = trunc i64 %48 to i32
%50 = lshr i64 %48, 32
%51 = trunc i64 %50 to i32
%52 = icmp eq i32 %49, -1
br i1 %52, label %53, label %56, !prof !0
53:
%54 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 0
%55 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 1
call void @luce_rt_raise(ptr %1, i32 14, ptr %54, i64 %55)
call void @luce_rt_unwound(ptr %1, i32 0, i32 1)
ret i32 1
56:
%57 = getelementptr inbounds i8, ptr %1, i64 96
%58 = load ptr, ptr %57, align 8!alias.scope !1, !noalias !2
%59 = zext i32 %49 to i64
%60 = mul nsw i64 %59, 112
%61 = getelementptr inbounds i8, ptr %58, i64 %60
%62 = getelementptr inbounds i8, ptr %61, i64 96
%63 = load i32, ptr %62, align 4, !alias.scope !1, !noalias !2
%64 = icmp ne i32 %63, %51
br i1 %64, label %65, label %68, !prof !0
65:
%66 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%67 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %66, i64 %67)
call void @luce_rt_unwound(ptr %1, i32 0, i32 1)
ret i32 1
68:
%69 = and i32 %63, 1
%70 = icmp ne i32 %69, 0
br i1 %70, label %71, label %74, !prof !0
71:
%72 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%73 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %72, i64 %73)
call void @luce_rt_unwound(ptr %1, i32 0, i32 1)
ret i32 1
74:
%75 = getelementptr inbounds i8, ptr %61, i64 16
%76 = load i64, ptr %75, align 8!alias.scope !1, !noalias !2
%77 = load ptr, ptr %61, align 8, !alias.scope !1, !noalias !2
%78 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %17, i32 0, i32 3
store i64 0, ptr %78, align 8
%79 = call i32 @luce_rt_new_list(ptr %1, ptr %17, ptr %20)
%80 = icmp ne i32 %79, 0
br i1 %80, label %81, label %82, !prof !0
81:
call void @luce_rt_unwound(ptr %1, i32 0, i32 2)
ret i32 1
82:
%83 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %20, i32 0, i32 3
%84 = load i64, ptr %83, align 8
%85 = trunc i64 %84 to i32
%86 = lshr i64 %84, 32
%87 = trunc i64 %86 to i32
%88 = icmp eq i32 %85, -1
br i1 %88, label %89, label %92, !prof !0
89:
%90 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 0
%91 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 1
call void @luce_rt_raise(ptr %1, i32 14, ptr %90, i64 %91)
call void @luce_rt_unwound(ptr %1, i32 0, i32 3)
ret i32 1
92:
%93 = getelementptr inbounds i8, ptr %1, i64 96
%94 = load ptr, ptr %93, align 8!alias.scope !1, !noalias !2
%95 = zext i32 %85 to i64
%96 = mul nsw i64 %95, 112
%97 = getelementptr inbounds i8, ptr %94, i64 %96
%98 = getelementptr inbounds i8, ptr %97, i64 96
%99 = load i32, ptr %98, align 4, !alias.scope !1, !noalias !2
%100 = icmp ne i32 %99, %87
br i1 %100, label %101, label %104, !prof !0
101:
%102 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%103 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %102, i64 %103)
call void @luce_rt_unwound(ptr %1, i32 0, i32 3)
ret i32 1
104:
%105 = and i32 %99, 1
%106 = icmp ne i32 %105, 0
br i1 %106, label %107, label %110, !prof !0
107:
%108 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%109 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %108, i64 %109)
call void @luce_rt_unwound(ptr %1, i32 0, i32 3)
ret i32 1
110:
%111 = getelementptr inbounds i8, ptr %97, i64 16
%112 = load i64, ptr %111, align 8!alias.scope !1, !noalias !2
%113 = getelementptr inbounds i8, ptr %97, i64 8
%114 = load i64, ptr %113, align 8, !alias.scope !1, !noalias !2
%115 = add nuw i64 %112, 1
%116 = mul nuw i64 %115, 8
%117 = icmp ule i64 %116, %114
br i1 %117, label %118, label %121, !prof !3
118:
%119 = load ptr, ptr %97, align 8!alias.scope !1, !noalias !2
%120 = getelementptr inbounds i64, ptr %119, i64 %112
store i64 %76, ptr %120, align 8, !alias.scope !2, !noalias !1
store i64 %115, ptr %111, align 8, !alias.scope !1, !noalias !2
br label %126
121:
%122 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %21, i32 0, i32 3
store i64 %84, ptr %122, align 8
%123 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %24, i32 0, i32 3
store i64 %76, ptr %123, align 8
%124 = call i32 @luce_rt_append(ptr %1, ptr %21, ptr %24)
%125 = icmp ne i32 %124, 0
br i1 %125, label %131, label %132, !prof !0
126:
store i64 %84, ptr %7, align 8
%127 = load i64, ptr %7, align 8
%128 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %27, i32 0, i32 3
store i64 %127, ptr %128, align 8
%129 = call i32 @luce_rt_retain(ptr %1, ptr %27)
%130 = icmp ne i32 %129, 0
br i1 %130, label %133, label %134, !prof !0
131:
call void @luce_rt_unwound(ptr %1, i32 0, i32 3)
ret i32 1
132:
br label %126
133:
call void @luce_rt_unwound(ptr %1, i32 0, i32 6)
ret i32 1
134:
store i64 %127, ptr %8, align 8
%135 = load i64, ptr %8, align 8
%136 = trunc i64 %135 to i32
%137 = lshr i64 %135, 32
%138 = trunc i64 %137 to i32
%139 = icmp eq i32 %136, -1
br i1 %139, label %140, label %143, !prof !0
140:
%141 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 0
%142 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 1
call void @luce_rt_raise(ptr %1, i32 14, ptr %141, i64 %142)
call void @luce_rt_unwound(ptr %1, i32 0, i32 10)
ret i32 1
143:
%144 = getelementptr inbounds i8, ptr %1, i64 96
%145 = load ptr, ptr %144, align 8!alias.scope !1, !noalias !2
%146 = zext i32 %136 to i64
%147 = mul nsw i64 %146, 112
%148 = getelementptr inbounds i8, ptr %145, i64 %147
%149 = getelementptr inbounds i8, ptr %148, i64 96
%150 = load i32, ptr %149, align 4, !alias.scope !1, !noalias !2
%151 = icmp ne i32 %150, %138
br i1 %151, label %152, label %155, !prof !0
152:
%153 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%154 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %153, i64 %154)
call void @luce_rt_unwound(ptr %1, i32 0, i32 10)
ret i32 1
155:
%156 = and i32 %150, 1
%157 = icmp ne i32 %156, 0
br i1 %157, label %158, label %161, !prof !0
158:
%159 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%160 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %159, i64 %160)
call void @luce_rt_unwound(ptr %1, i32 0, i32 10)
ret i32 1
161:
%162 = getelementptr inbounds i8, ptr %148, i64 16
%163 = load i64, ptr %162, align 8!alias.scope !1, !noalias !2
%164 = getelementptr inbounds i8, ptr %148, i64 8
%165 = load i64, ptr %164, align 8, !alias.scope !1, !noalias !2
%166 = add nuw i64 %163, 1
%167 = mul nuw i64 %166, 8
%168 = icmp ule i64 %167, %165
br i1 %168, label %169, label %172, !prof !3
169:
%170 = load ptr, ptr %148, align 8!alias.scope !1, !noalias !2
%171 = getelementptr inbounds i64, ptr %170, i64 %163
store i64 42, ptr %171, align 8, !alias.scope !2, !noalias !1
store i64 %166, ptr %162, align 8, !alias.scope !1, !noalias !2
br label %177
172:
%173 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %30, i32 0, i32 3
store i64 %135, ptr %173, align 8
%174 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %33, i32 0, i32 3
store i64 42, ptr %174, align 8
%175 = call i32 @luce_rt_append(ptr %1, ptr %30, ptr %33)
%176 = icmp ne i32 %175, 0
br i1 %176, label %183, label %184, !prof !0
177:
%178 = load i64, ptr %7, align 8
%179 = trunc i64 %178 to i32
%180 = lshr i64 %178, 32
%181 = trunc i64 %180 to i32
%182 = icmp eq i32 %179, -1
br i1 %182, label %185, label %188, !prof !0
183:
call void @luce_rt_unwound(ptr %1, i32 0, i32 10)
ret i32 1
184:
br label %177
185:
%186 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 0
%187 = extractvalue { ptr, i64 } { ptr @luce.text.1, i64 21 }, 1
call void @luce_rt_raise(ptr %1, i32 14, ptr %186, i64 %187)
call void @luce_rt_unwound(ptr %1, i32 0, i32 12)
ret i32 1
188:
%189 = getelementptr inbounds i8, ptr %1, i64 96
%190 = load ptr, ptr %189, align 8!alias.scope !1, !noalias !2
%191 = zext i32 %179 to i64
%192 = mul nsw i64 %191, 112
%193 = getelementptr inbounds i8, ptr %190, i64 %192
%194 = getelementptr inbounds i8, ptr %193, i64 96
%195 = load i32, ptr %194, align 4, !alias.scope !1, !noalias !2
%196 = icmp ne i32 %195, %181
br i1 %196, label %197, label %200, !prof !0
197:
%198 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%199 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %198, i64 %199)
call void @luce_rt_unwound(ptr %1, i32 0, i32 12)
ret i32 1
200:
%201 = and i32 %195, 1
%202 = icmp ne i32 %201, 0
br i1 %202, label %203, label %206, !prof !0
203:
%204 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 0
%205 = extractvalue { ptr, i64 } { ptr @luce.text.2, i64 22 }, 1
call void @luce_rt_raise(ptr %1, i32 13, ptr %204, i64 %205)
call void @luce_rt_unwound(ptr %1, i32 0, i32 12)
ret i32 1
206:
%207 = getelementptr inbounds i8, ptr %193, i64 16
%208 = load i64, ptr %207, align 8!alias.scope !1, !noalias !2
%209 = load ptr, ptr %193, align 8, !alias.scope !1, !noalias !2
%210 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %36, i32 0, i32 3
store i64 %208, ptr %210, align 8
%211 = call i32 @luce_rt_str(ptr %1, ptr %36, ptr %39)
%212 = icmp ne i32 %211, 0
br i1 %212, label %213, label %214, !prof !0
213:
call void @luce_rt_unwound(ptr %1, i32 0, i32 13)
ret i32 1
214:
%215 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %39, i32 0, i32 3
%216 = load i64, ptr %215, align 8
%217 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %39, i32 0, i32 1
%218 = load i8, ptr %217, align 1
%219 = icmp eq i8 %218, -1
%220 = inttoptr i64 %216 to ptr
%221 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %39, i32 0, i32 2
%222 = select i1 %219, ptr %220, ptr %221
%223 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %39, i32 0, i32 4
%224 = load i64, ptr %223, align 8
%225 = zext i8 %218 to i64
%226 = select i1 %219, i64 %224, i64 %225
%227 = insertvalue { ptr, i64 } poison, ptr %222, 0
%228 = insertvalue { ptr, i64 } %227, i64 %226, 1
call void @llvm.memcpy.inline.p0.p0.i64(ptr align 8 %9, ptr align 8 %39, i64 24, i1 false)
%229 = extractvalue { ptr, i64 } %228, 0
%230 = extractvalue { ptr, i64 } %228, 1
%231 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 1
%232 = load ptr, ptr %231, align 8
%233 = icmp eq ptr %232, null
br i1 %233, label %234, label %237, !prof !0
234:
%235 = extractvalue { ptr, i64 } { ptr @luce.text.3, i64 24 }, 0
%236 = extractvalue { ptr, i64 } { ptr @luce.text.3, i64 24 }, 1
call void @luce_rt_raise(ptr %1, i32 9, ptr %235, i64 %236)
call void @luce_rt_unwound(ptr %1, i32 0, i32 15)
ret i32 1
237:
%238 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 0
%239 = load ptr, ptr %238, align 8
%240 = call i32 %232(ptr %239, ptr %229, i64 %230)
%241 = icmp eq i32 %240, -1
br i1 %241, label %242, label %243, !prof !0
242:
call void @luce_rt_exhaust(ptr %1)
ret i32 1
243:
%244 = icmp ne i32 %240, 0
%245 = icmp ne i32 %240, 1
%246 = and i1 %244, %245
br i1 %246, label %247, label %250, !prof !0
247:
%248 = extractvalue { ptr, i64 } { ptr @luce.text.3, i64 24 }, 0
%249 = extractvalue { ptr, i64 } { ptr @luce.text.3, i64 24 }, 1
call void @luce_rt_raise(ptr %1, i32 9, ptr %248, i64 %249)
call void @luce_rt_unwound(ptr %1, i32 0, i32 15)
ret i32 1
250:
%251 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 3
%252 = load i64, ptr %251, align 8
%253 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 1
%254 = load i8, ptr %253, align 1
%255 = icmp eq i8 %254, -1
%256 = inttoptr i64 %252 to ptr
%257 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 2
%258 = select i1 %255, ptr %256, ptr %257
%259 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %9, i32 0, i32 4
%260 = load i64, ptr %259, align 8
%261 = zext i8 %254 to i64
%262 = select i1 %255, i64 %260, i64 %261
%263 = insertvalue { ptr, i64 } poison, ptr %258, 0
%264 = insertvalue { ptr, i64 } %263, i64 %262, 1
call void @luce_rt_drop_storage(ptr %1, ptr %9, ptr %40)
%265 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %40, i32 0, i32 3
%266 = load i64, ptr %265, align 8
%267 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %40, i32 0, i32 1
%268 = load i8, ptr %267, align 1
%269 = icmp eq i8 %268, -1
%270 = inttoptr i64 %266 to ptr
%271 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %40, i32 0, i32 2
%272 = select i1 %269, ptr %270, ptr %271
%273 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %40, i32 0, i32 4
%274 = load i64, ptr %273, align 8
%275 = zext i8 %268 to i64
%276 = select i1 %269, i64 %274, i64 %275
%277 = insertvalue { ptr, i64 } poison, ptr %272, 0
%278 = insertvalue { ptr, i64 } %277, i64 %276, 1
call void @llvm.memcpy.inline.p0.p0.i64(ptr align 8 %9, ptr align 8 %40, i64 24, i1 false)
%279 = load i64, ptr %8, align 8
%280 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %41, i32 0, i32 3
store i64 %279, ptr %280, align 8
%281 = call i32 @luce_rt_release(ptr %1, ptr %41)
%282 = icmp ne i32 %281, 0
br i1 %282, label %283, label %284, !prof !0
283:
call void @luce_rt_unwound(ptr %1, i32 0, i32 20)
ret i32 1
284:
%285 = load i64, ptr %7, align 8
%286 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %44, i32 0, i32 3
store i64 %285, ptr %286, align 8
%287 = call i32 @luce_rt_release(ptr %1, ptr %44)
%288 = icmp ne i32 %287, 0
br i1 %288, label %289, label %290, !prof !0
289:
call void @luce_rt_unwound(ptr %1, i32 0, i32 22)
ret i32 1
290:
ret i32 0
}
; Function Attrs: nounwind cold willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @luce_rt_raise(ptr nocapture nonnull noundef %0, i32 %1, ptr nocapture readonly %2, i64 %3) #0
; Function Attrs: nounwind cold willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @luce_rt_unwound(ptr nocapture nonnull noundef %0, i32 %1, i32 %2) #0
; Function Attrs: nounwind willreturn memory(readwrite)
declare i32 @luce_rt_new_list(ptr nocapture nonnull noundef %0, ptr align 8 nocapture readonly nonnull dereferenceable(24) noundef %1, ptr align 8 nocapture nonnull dereferenceable(24) writeonly noundef %2) #1
; Function Attrs: nounwind willreturn memory(readwrite)
declare i32 @luce_rt_append(ptr nocapture nonnull noundef %0, ptr align 8 nocapture readonly nonnull dereferenceable(24) noundef %1, ptr align 8 nocapture readonly nonnull dereferenceable(24) noundef %2) #1
; Function Attrs: nounwind willreturn memory(readwrite)
declare i32 @luce_rt_retain(ptr nocapture nonnull noundef %0, ptr align 8 nocapture readonly nonnull dereferenceable(24) noundef %1) #1
; Function Attrs: nounwind willreturn memory(read, argmem: readwrite, inaccessiblemem: readwrite)
declare i32 @luce_rt_str(ptr nocapture nonnull noundef %0, ptr align 8 nocapture readonly nonnull dereferenceable(24) noundef %1, ptr align 8 nocapture nonnull dereferenceable(24) writeonly noundef %2) #2
; Function Attrs: nounwind willreturn nofree nocallback memory(argmem: readwrite)
declare void @llvm.memcpy.inline.p0.p0.i64(ptr noalias nocapture writeonly %0, ptr noalias nocapture readonly %1, i64 %2, i1 immarg %3) #3
; Function Attrs: nounwind cold willreturn memory(argmem: write)
declare void @luce_rt_exhaust(ptr nocapture nonnull noundef %0) #4
; Function Attrs: nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @luce_rt_drop_storage(ptr nocapture nonnull noundef %0, ptr align 8 nocapture readonly nonnull dereferenceable(24) noundef %1, ptr align 8 nocapture nonnull dereferenceable(24) writeonly noundef %2) #5
; Function Attrs: nounwind memory(readwrite)
declare i32 @luce_rt_release(ptr nocapture nonnull noundef %0, ptr align 8 nocapture readonly nonnull dereferenceable(24) noundef %1) #6
define i32 @luce_main(ptr align 8 nocapture readonly nonnull dereferenceable(472) noundef %0) {
1:
%2 = alloca i64, align 8
%3 = alloca i32, align 8
store i64 256, ptr %2, align 8
%4 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 0
%5 = load ptr, ptr %4, align 8
%6 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 14
%7 = load ptr, ptr %6, align 8
%8 = icmp eq ptr %7, null
br i1 %8, label %11, label %9
9:
%10 = call i64 %7(ptr %5)
store i64 %10, ptr %2, align 8
br label %11
11:
%12 = load i64, ptr %2, align 8
%13 = call ptr @luce_rt_open(ptr @luce.functions, i64 1)
%14 = icmp eq ptr %13, null
br i1 %14, label %15, label %16, !prof !0
15:
ret i32 2
16:
%17 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 28
%18 = load ptr, ptr %17, align 8
%19 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 54
%20 = load ptr, ptr %19, align 8
%21 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 55
%22 = load ptr, ptr %21, align 8
%23 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 56
%24 = load ptr, ptr %23, align 8
%25 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 57
%26 = load ptr, ptr %25, align 8
%27 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 58
%28 = load ptr, ptr %27, align 8
%29 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 29
%30 = load ptr, ptr %29, align 8
%31 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 30
%32 = load ptr, ptr %31, align 8
%33 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 31
%34 = load ptr, ptr %33, align 8
%35 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 32
%36 = load ptr, ptr %35, align 8
call void @luce_rt_files_install(ptr %13, ptr %5, ptr %18, ptr %20, ptr %22, ptr %24, ptr %26, ptr %28, ptr %30, ptr %32, ptr %34, ptr %36)
%37 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 48
%38 = load ptr, ptr %37, align 8
%39 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 49
%40 = load ptr, ptr %39, align 8
%41 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 50
%42 = load ptr, ptr %41, align 8
%43 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 51
%44 = load ptr, ptr %43, align 8
%45 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 52
%46 = load ptr, ptr %45, align 8
call void @luce_rt_sockets_install(ptr %13, ptr %5, ptr %38, ptr %40, ptr %42, ptr %44, ptr %46)
%47 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 40
%48 = load ptr, ptr %47, align 8
%49 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 41
%50 = load ptr, ptr %49, align 8
%51 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 42
%52 = load ptr, ptr %51, align 8
%53 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 43
%54 = load ptr, ptr %53, align 8
%55 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 44
%56 = load ptr, ptr %55, align 8
%57 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 45
%58 = load ptr, ptr %57, align 8
%59 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 46
%60 = load ptr, ptr %59, align 8
%61 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 47
%62 = load ptr, ptr %61, align 8
call void @luce_rt_graphics_install(ptr %13, ptr %5, ptr %48, ptr %50, ptr %52, ptr %54, ptr %56, ptr %58, ptr %60, ptr %62)
%63 = icmp slt i64 %12, 1
br i1 %63, label %64, label %65, !prof !0
64:
call void @luce_rt_raise(ptr %13, i32 6, ptr @luce.text.6, i64 19)
store i32 1, ptr %3, align 8
br label %73
65:
%66 = alloca { i8, i8, [6 x i8], i64, i64 }, align 8
%67 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 4
%68 = load ptr, ptr %67, align 8
%69 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 5
%70 = load ptr, ptr %69, align 8
%71 = call i32 @luce_rt_args_list(ptr %13, ptr %5, ptr %68, ptr %70, ptr %66)
%72 = icmp ne i32 %71, 0
br i1 %72, label %77, label %78, !prof !0
73:
%74 = load i32, ptr %3, align 8
%75 = icmp eq i32 %74, 1
%76 = icmp eq i32 %74, 2
br i1 %75, label %83, label %86, !prof !0
77:
store i32 1, ptr %3, align 8
br label %73
78:
%79 = getelementptr inbounds { i8, i8, [6 x i8], i64, i64 }, ptr %66, i32 0, i32 3
%80 = load i64, ptr %79, align 8
%81 = call i32 @luce.0.main(ptr %0, ptr %13, i64 %12, i64 %80)
store i32 %81, ptr %3, align 8
%82 = call i32 @luce_rt_release(ptr %13, ptr %66)
br label %73
83:
%84 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 2
%85 = load ptr, ptr %84, align 8
call void @luce_rt_report(ptr %13, ptr %5, ptr %85)
br label %86
86:
br i1 %76, label %87, label %90, !prof !0
87:
%88 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 15
%89 = load ptr, ptr %88, align 8
call void @luce_rt_report_error(ptr %13, ptr %5, ptr %89)
br label %90
90:
%91 = call i32 @luce_rt_status(ptr %13, i32 %74)
%92 = icmp eq i32 %91, 2
%93 = getelementptr inbounds { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }, ptr %0, i32 0, i32 3
%94 = load ptr, ptr %93, align 8
%95 = icmp eq ptr %94, null
%96 = or i1 %95, %92
br i1 %96, label %97, label %98
97:
call void @luce_rt_close(ptr %13)
ret i32 %91
98:
%99 = call i64 @luce_rt_leaked(ptr %13)
call void %94(ptr %5, i64 %99)
br label %97
}
; Function Attrs: nounwind willreturn memory(argmem: read, inaccessiblemem: readwrite)
declare noalias ptr @luce_rt_open(ptr readonly %0, i64 %1) #7
; Function Attrs: nounwind willreturn memory(argmem: readwrite)
declare void @luce_rt_files_install(ptr nocapture nonnull noundef %0, ptr %1, ptr %2, ptr %3, ptr %4, ptr %5, ptr %6, ptr %7, ptr %8, ptr %9, ptr %10, ptr %11) #8
; Function Attrs: nounwind willreturn memory(readwrite)
declare void @luce_rt_sockets_install(ptr nocapture nonnull noundef %0, ptr %1, ptr %2, ptr %3, ptr %4, ptr %5, ptr %6) #1
; Function Attrs: nounwind willreturn memory(argmem: readwrite)
declare void @luce_rt_graphics_install(ptr nocapture nonnull noundef %0, ptr %1, ptr %2, ptr %3, ptr %4, ptr %5, ptr %6, ptr %7, ptr %8, ptr %9) #8
; Function Attrs: nounwind memory(readwrite)
declare i32 @luce_rt_args_list(ptr nocapture nonnull noundef %0, ptr %1, ptr %2, ptr %3, ptr align 8 nocapture nonnull dereferenceable(24) writeonly noundef %4) #6
; Function Attrs: cold
declare void @luce_rt_report(ptr nocapture nonnull noundef %0, ptr %1, ptr %2) #9
; Function Attrs: cold
declare void @luce_rt_report_error(ptr nocapture nonnull noundef %0, ptr %1, ptr %2) #9
; Function Attrs: nounwind willreturn memory(argmem: read)
declare i32 @luce_rt_status(ptr nocapture nonnull noundef %0, i32 %1) #10
; Function Attrs: nounwind willreturn memory(argmem: read)
declare i64 @luce_rt_leaked(ptr nocapture nonnull noundef %0) #10
; Function Attrs: nounwind memory(readwrite)
declare void @luce_rt_close(ptr nocapture nonnull noundef %0) #6
attributes #0 = { nounwind cold willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
attributes #1 = { nounwind willreturn memory(readwrite) }
attributes #2 = { nounwind willreturn memory(read, argmem: readwrite, inaccessiblemem: readwrite) }
attributes #3 = { nounwind willreturn nofree nocallback memory(argmem: readwrite) }
attributes #4 = { nounwind cold willreturn memory(argmem: write) }
attributes #5 = { nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) }
attributes #6 = { nounwind memory(readwrite) }
attributes #7 = { nounwind willreturn memory(argmem: read, inaccessiblemem: readwrite) }
attributes #8 = { nounwind willreturn memory(argmem: readwrite) }
attributes #9 = { cold }
attributes #10 = { nounwind willreturn memory(argmem: read) }
!0 = !{!"branch_weights", i32 1, i32 2000}
!1 = !{!4}
!2 = !{!5}
!3 = !{!"branch_weights", i32 2000, i32 1}
!4 = !{!"luce.rows", !6}
!5 = !{!"luce.elements", !6}
!6 = !{!"luce.alias"}
ARM64 object code. LLVM selected these instructions, registers, calls, and branch conditions for this target.
open assembly fileARM64 instruction guide hover, focus, or tap dotted terms
x8 is a 64-bit register; w8 is its low 32 bits. A leading # marks a constant, brackets describe a memory address, and conditional instructions read the processor flags set by the preceding arithmetic or comparison.
Hover or focus a dotted term in the file for its explanation. On a touch screen, tap a term to keep the note open and tap elsewhere to close it. The list includes the operations that appear in this file.
mov- Copies a register value or loads a small constant. Calls also use it to place arguments in the required registers.
add- Adds registers or a constant. Address setup and stack restoration frequently use this instruction.
sub- Subtracts registers or a constant. Function prologues use it to reserve stack space.
cmp- Performs a subtraction solely to set condition flags; a following branch or select consumes those flags.
cmn- Performs an addition solely to set condition flags. The checked multiply-by-two path uses it to recognize unsafe inputs.
csel- Selects one of two registers from the current condition flags. The clamp uses it to choose the doubled value or limit.
cset- Writes 1 or 0 according to a condition, producing a Boolean value from processor flags.
ldr- Loads a register from memory using a scaled address offset.
str- Stores one register into memory using a scaled address offset.
ldp- Loads two adjacent registers, often restoring saved registers or reading neighboring fields.
stp- Stores two adjacent registers, often saving the caller's registers in a function prologue.
ldur- Loads from an unscaled byte offset, which is useful for stack slots below the frame pointer.
stur- Stores to an unscaled byte offset, which is useful for stack slots below the frame pointer.
ldrb- Loads one byte and widens it into a register.
strb- Stores the low byte of a register.
sturb- Stores one byte using an unscaled byte offset.
sturh- Stores 16 bits using an unscaled byte offset.
adrp- Loads the page address of a symbol. The linker fills in the final page-relative relocation.
bl- Calls a direct target and records the return address in
x30. blr- Calls the function address held in a register, as required for host callbacks and function values.
b- Jumps to another instruction address.
b.eq- Branches when the previous comparison reported equality.
b.ne- Branches when the previous comparison reported different values.
b.hs- Branches when an unsigned comparison found higher-or-same, represented by a set carry flag.
b.lo- Branches when an unsigned comparison found lower, represented by a clear carry flag.
cbz- Compares a register with zero and branches when it is zero.
cbnz- Compares a register with zero and branches when it contains a nonzero value.
tbnz- Tests one selected bit and branches when that bit is set; packed runtime flags use this form.
lsl- Shifts bits left. A shift by one multiplies by two after the overflow check has established a safe range.
lsr- Shifts bits right and fills with zero, often extracting the upper field of a packed handle.
umaddl- Widens two 32-bit unsigned operands, multiplies them, and adds a 64-bit base address.
orr- Combines bits, commonly setting tag or flag bits in a packed value.
ret- Returns to the address in
x30and ends the current machine function.
/Users/sedov/Dev/luciaos/www/lucelang/out/traces/memory.o: file format mach-o arm64
Disassembly of section __TEXT,__text:
0000000000000000 <ltmp0>:
; luce_main():
0: stp x28, x27, [sp, #-0x60]!
4: stp x26, x25, [sp, #0x10]
8: stp x24, x23, [sp, #0x20]
c: stp x22, x21, [sp, #0x30]
10: stp x20, x19, [sp, #0x40]
14: stp x29, x30, [sp, #0x50]
18: add x29, sp, #0x50
1c: sub sp, sp, #0x140
20: mov x19, sp
24: ldr x8, [x0, #0x70]
28: ldr x20, [x0]
2c: mov x21, x0
30: cbz x8, 0x33c <ltmp0+0x33c>
34: mov x0, x20
38: blr x8
3c: cmp x0, #0x1
40: cset w23, lt
44: adrp x0, 0x0 <ltmp0>
48: add x0, x0, #0x0
4c: mov w1, #0x1 ; =1
50: bl 0x50 <ltmp0+0x50>
54: cbz x0, 0x354 <ltmp0+0x354>
58: ldp x3, x4, [x21, #0x1b0]
5c: mov x22, x0
60: ldp x5, x6, [x21, #0x1c0]
64: ldr x2, [x21, #0xe0]
68: ldp x8, x9, [x21, #0xf8]
6c: ldr x7, [x21, #0x1d0]
70: ldur q0, [x21, #0xe8]
74: sub sp, sp, #0x20
78: mov x1, x20
7c: stp x8, x9, [sp, #0x10]
80: str q0, [sp]
84: bl 0x84 <ltmp0+0x84>
88: add sp, sp, #0x20
8c: ldp x2, x3, [x21, #0x180]
90: mov x0, x22
94: ldp x4, x5, [x21, #0x190]
98: mov x1, x20
9c: ldr x6, [x21, #0x1a0]
a0: bl 0xa0 <ltmp0+0xa0>
a4: ldp x8, x9, [x21, #0x170]
a8: ldp x2, x3, [x21, #0x140]
ac: ldp x4, x5, [x21, #0x150]
b0: ldp x6, x7, [x21, #0x160]
b4: stp x8, x9, [sp, #-0x10]!
b8: mov x0, x22
bc: mov x1, x20
c0: bl 0xc0 <ltmp0+0xc0>
c4: add sp, sp, #0x10
c8: cbnz w23, 0x3b4 <ltmp0+0x3b4>
cc: sub x23, sp, #0x20
d0: mov sp, x23
d4: ldp x2, x3, [x21, #0x20]
d8: mov x0, x22
dc: mov x1, x20
e0: mov x4, x23
e4: bl 0xe4 <ltmp0+0xe4>
e8: cbnz w0, 0x52c <ltmp0+0x52c>
ec: mov w8, #0xff04 ; =65284
f0: mov w9, #0x6 ; =6
f4: stur xzr, [x29, #-0x78]
f8: sturh w8, [x29, #-0x70]
fc: adrp x8, 0x0 <ltmp0>
100: add x8, x8, #0x0
104: stp x8, xzr, [x29, #-0x68]
108: mov w8, #0x2 ; =2
10c: sturb w8, [x29, #-0x88]
110: strb w8, [x19, #0xc0]
114: strb w8, [x19, #0x78]
118: strb w8, [x19, #0x60]
11c: ldr x8, [x23, #0x8]
120: sturb w9, [x29, #-0xb8]
124: cmn w8, #0x1
128: stur xzr, [x29, #-0xa8]
12c: str xzr, [x19, #0xd0]
130: strb w9, [x19, #0xa8]
134: str xzr, [x19, #0xb8]
138: strb w9, [x19, #0x90]
13c: str xzr, [x19, #0xa0]
140: str xzr, [x19, #0x88]
144: str xzr, [x19, #0x70]
148: strb w9, [x19, #0x18]
14c: str xzr, [x19, #0x28]
150: strb w9, [x19]
154: str xzr, [x19, #0x10]
158: b.eq 0x3d0 <ltmp0+0x3d0>
15c: mov w9, #0x70 ; =112
160: ldr x10, [x22, #0x60]
164: umaddl x9, w8, w9, x10
168: lsr x8, x8, #32
16c: ldr w10, [x9, #0x60]
170: cmp w10, w8
174: b.ne 0x35c <ltmp0+0x35c>
178: tbnz w8, #0x0, 0x35c <ltmp0+0x35c>
17c: ldr x27, [x9, #0x10]
180: sub x1, x29, #0x88
184: sub x2, x29, #0xa0
188: mov x0, x22
18c: stur xzr, [x29, #-0x80]
190: bl 0x190 <ltmp0+0x190>
194: cbnz w0, 0x3f8 <ltmp0+0x3f8>
198: ldur x24, [x29, #-0x98]
19c: cmn w24, #0x1
1a0: b.eq 0x408 <ltmp0+0x408>
1a4: mov w8, w24
1a8: ldr x9, [x22, #0x60]
1ac: lsr x26, x24, #32
1b0: lsl x8, x8, #7
1b4: sub x25, x8, w24, uxtw #4
1b8: add x8, x9, x25
1bc: ldr w9, [x8, #0x60]
1c0: cmp w9, w26
1c4: b.ne 0x374 <ltmp0+0x374>
1c8: tbnz w26, #0x0, 0x374 <ltmp0+0x374>
1cc: ldp x11, x9, [x8, #0x8]
1d0: add x10, x9, #0x1
1d4: cmp x11, x10, lsl #3
1d8: b.lo 0x430 <ltmp0+0x430>
1dc: ldr x11, [x8]
1e0: str x10, [x8, #0x10]
1e4: str x27, [x11, x9, lsl #3]
1e8: add x1, x19, #0xa8
1ec: mov x0, x22
1f0: str x24, [x19, #0xb0]
1f4: bl 0x1f4 <ltmp0+0x1f4>
1f8: cbnz w0, 0x450 <ltmp0+0x450>
1fc: ldr x8, [x22, #0x60]
200: add x9, x8, x25
204: ldr w10, [x9, #0x60]
208: cmp w10, w26
20c: b.ne 0x460 <ltmp0+0x460>
210: ldp x12, x10, [x9, #0x8]
214: add x11, x10, #0x1
218: cmp x12, x11, lsl #3
21c: b.lo 0x488 <ltmp0+0x488>
220: ldr x12, [x9]
224: mov w13, #0x2a ; =42
228: str x11, [x9, #0x10]
22c: str x13, [x12, x10, lsl #3]
230: add x8, x8, x25
234: add x1, x19, #0x60
238: add x2, x19, #0x48
23c: ldr x8, [x8, #0x10]
240: mov x0, x22
244: str x8, [x19, #0x68]
248: bl 0x248 <ltmp0+0x248>
24c: cbnz w0, 0x4e4 <ltmp0+0x4e4>
250: ldp x9, x10, [x19, #0x50]
254: ldur q0, [x19, #0x48]
258: ldr x8, [x21, #0x8]
25c: ldrb w11, [x19, #0x49]
260: stur q0, [x29, #-0x70]
264: stur x10, [x29, #-0x60]
268: cbz x8, 0x38c <ltmp0+0x38c>
26c: add x12, x19, #0x48
270: cmp w11, #0xff
274: ldr x0, [x21]
278: orr x12, x12, #0x2
27c: csel x2, x10, x11, eq
280: csel x1, x9, x12, eq
284: blr x8
288: cmn w0, #0x1
28c: b.eq 0x4f4 <ltmp0+0x4f4>
290: cmp w0, #0x2
294: b.hs 0x38c <ltmp0+0x38c>
298: sub x1, x29, #0x70
29c: add x2, x19, #0x30
2a0: mov x0, x22
2a4: bl 0x2a4 <ltmp0+0x2a4>
2a8: add x1, x19, #0x18
2ac: mov x0, x22
2b0: str x24, [x19, #0x20]
2b4: bl 0x2b4 <ltmp0+0x2b4>
2b8: cbnz w0, 0x500 <ltmp0+0x500>
2bc: add x1, x19, #0x0
2c0: mov x0, x22
2c4: str x24, [x19, #0x8]
2c8: bl 0x2c8 <ltmp0+0x2c8>
2cc: cbnz w0, 0x510 <ltmp0+0x510>
2d0: mov x0, x22
2d4: mov x1, x23
2d8: bl 0x2d8 <ltmp0+0x2d8>
2dc: mov w1, wzr
2e0: mov x0, x22
2e4: bl 0x2e4 <ltmp0+0x2e4>
2e8: mov w23, w0
2ec: cmp w0, #0x2
2f0: b.eq 0x310 <ltmp0+0x310>
2f4: ldr x21, [x21, #0x18]
2f8: cbz x21, 0x310 <ltmp0+0x310>
2fc: mov x0, x22
300: bl 0x300 <ltmp0+0x300>
304: mov x1, x0
308: mov x0, x20
30c: blr x21
310: mov x0, x22
314: bl 0x314 <ltmp0+0x314>
318: mov w0, w23
31c: sub sp, x29, #0x50
320: ldp x29, x30, [sp, #0x50]
324: ldp x20, x19, [sp, #0x40]
328: ldp x22, x21, [sp, #0x30]
32c: ldp x24, x23, [sp, #0x20]
330: ldp x26, x25, [sp, #0x10]
334: ldp x28, x27, [sp], #0x60
338: ret
33c: mov w23, wzr
340: adrp x0, 0x0 <ltmp0>
344: add x0, x0, #0x0
348: mov w1, #0x1 ; =1
34c: bl 0x34c <ltmp0+0x34c>
350: cbnz x0, 0x58 <ltmp0+0x58>
354: mov w23, #0x2 ; =2
358: b 0x318 <ltmp0+0x318>
35c: adrp x2, 0x0 <ltmp0>
360: add x2, x2, #0x0
364: mov x0, x22
368: mov w1, #0xd ; =13
36c: mov w3, #0x16 ; =22
370: b 0x3e4 <ltmp0+0x3e4>
374: adrp x2, 0x0 <ltmp0>
378: add x2, x2, #0x0
37c: mov x0, x22
380: mov w1, #0xd ; =13
384: mov w3, #0x16 ; =22
388: b 0x41c <ltmp0+0x41c>
38c: adrp x2, 0x0 <ltmp0>
390: add x2, x2, #0x0
394: mov x0, x22
398: mov w1, #0x9 ; =9
39c: mov w3, #0x18 ; =24
3a0: bl 0x3a0 <ltmp0+0x3a0>
3a4: mov x0, x22
3a8: mov w1, wzr
3ac: mov w2, #0xf ; =15
3b0: b 0x51c <ltmp0+0x51c>
3b4: adrp x2, 0x0 <ltmp0>
3b8: add x2, x2, #0x0
3bc: mov x0, x22
3c0: mov w1, #0x6 ; =6
3c4: mov w3, #0x13 ; =19
3c8: bl 0x3c8 <ltmp0+0x3c8>
3cc: b 0x52c <ltmp0+0x52c>
3d0: adrp x2, 0x0 <ltmp0>
3d4: add x2, x2, #0x0
3d8: mov x0, x22
3dc: mov w1, #0xe ; =14
3e0: mov w3, #0x15 ; =21
3e4: bl 0x3e4 <ltmp0+0x3e4>
3e8: mov x0, x22
3ec: mov w1, wzr
3f0: mov w2, #0x1 ; =1
3f4: b 0x51c <ltmp0+0x51c>
3f8: mov x0, x22
3fc: mov w1, wzr
400: mov w2, #0x2 ; =2
404: b 0x51c <ltmp0+0x51c>
408: adrp x2, 0x0 <ltmp0>
40c: add x2, x2, #0x0
410: mov x0, x22
414: mov w1, #0xe ; =14
418: mov w3, #0x15 ; =21
41c: bl 0x41c <ltmp0+0x41c>
420: mov x0, x22
424: mov w1, wzr
428: mov w2, #0x3 ; =3
42c: b 0x51c <ltmp0+0x51c>
430: sub x1, x29, #0xb8
434: add x2, x19, #0xc0
438: mov x0, x22
43c: stur x24, [x29, #-0xb0]
440: str x27, [x19, #0xc8]
444: bl 0x444 <ltmp0+0x444>
448: cbz w0, 0x1e8 <ltmp0+0x1e8>
44c: b 0x420 <ltmp0+0x420>
450: mov x0, x22
454: mov w1, wzr
458: mov w2, #0x6 ; =6
45c: b 0x51c <ltmp0+0x51c>
460: adrp x2, 0x0 <ltmp0>
464: add x2, x2, #0x0
468: mov x0, x22
46c: mov w1, #0xd ; =13
470: mov w3, #0x16 ; =22
474: bl 0x474 <ltmp0+0x474>
478: mov x0, x22
47c: mov w1, wzr
480: mov w2, #0xa ; =10
484: b 0x51c <ltmp0+0x51c>
488: mov w8, #0x2a ; =42
48c: add x1, x19, #0x90
490: add x2, x19, #0x78
494: mov x0, x22
498: str x24, [x19, #0x98]
49c: str x8, [x19, #0x80]
4a0: bl 0x4a0 <ltmp0+0x4a0>
4a4: cbnz w0, 0x478 <ltmp0+0x478>
4a8: ldr x8, [x22, #0x60]
4ac: add x9, x8, x25
4b0: ldr w9, [x9, #0x60]
4b4: cmp w9, w26
4b8: b.eq 0x230 <ltmp0+0x230>
4bc: adrp x2, 0x0 <ltmp0>
4c0: add x2, x2, #0x0
4c4: mov x0, x22
4c8: mov w1, #0xd ; =13
4cc: mov w3, #0x16 ; =22
4d0: bl 0x4d0 <ltmp0+0x4d0>
4d4: mov x0, x22
4d8: mov w1, wzr
4dc: mov w2, #0xc ; =12
4e0: b 0x51c <ltmp0+0x51c>
4e4: mov x0, x22
4e8: mov w1, wzr
4ec: mov w2, #0xd ; =13
4f0: b 0x51c <ltmp0+0x51c>
4f4: mov x0, x22
4f8: bl 0x4f8 <ltmp0+0x4f8>
4fc: b 0x520 <ltmp0+0x520>
500: mov x0, x22
504: mov w1, wzr
508: mov w2, #0x14 ; =20
50c: b 0x51c <ltmp0+0x51c>
510: mov x0, x22
514: mov w1, wzr
518: mov w2, #0x16 ; =22
51c: bl 0x51c <ltmp0+0x51c>
520: mov x0, x22
524: mov x1, x23
528: bl 0x528 <ltmp0+0x528>
52c: ldr x2, [x21, #0x10]
530: mov x0, x22
534: mov x1, x20
538: bl 0x538 <ltmp0+0x538>
53c: mov w1, #0x1 ; =1
540: mov x0, x22
544: bl 0x544 <ltmp0+0x544>
548: mov w23, w0
54c: cmp w0, #0x2
550: b.ne 0x2f4 <ltmp0+0x2f4>
554: b 0x310 <ltmp0+0x310>
Value or reference
| Category | Examples | Assignment | End of lifetime |
|---|---|---|---|
| Value | numbers, bool, char, str, bytes, struct, enum, union | copy representation; retain contained reference fields | release contained ownership |
| Reference | class, list, map, array, builder, closure environment | retain and share identity | last strong release destroys object |
| Resource reference | task and std-owned raw handles | retain and share resource identity | last release joins, closes, or releases once |
Walk one ARC lifetime
List identity through four eventsThe handle stays stable while aliases enter and leave scope
firstowns handle #12:g4
→
list row #12:g4
buffer [1, 2]
strong 1first + secondboth carry handle #12:g4
→
same list row
either alias mutates the buffer
strong 2secondfirst left scope
→
same list row
object remains live
strong 1no strong binding
final owner left
→
row cleared
elements released; buffer freed; generation protects stale weak handles
strong 0Where retains and releases come from
Semantics knows each type, lexical scope, and control-flow edge. It records ownership stores and temporary parks, then HIR lowering emits the corresponding MIR retains and releases. The runtime executes that plan by updating counts and destroying rows at zero.
static typevalue or reference facts
HIR planstore, temporary, exit
MIR opsretain and release
runtime rowcount and destroy
Weak handles and generations
A weak place stores an object index and the generation observed at assignment. It owns nothing. A read checks that the row is live and the generation still matches; on success it increments the strong count and returns an owned optional snapshot. On failure it returns none.
When a row is reused, its generation changes. A weak handle carrying the former generation returns none instead of resolving to the new occupant. Rows retire before generation wrap could make an old handle match again.
How strong cycles keep counts above zero
Strong A ↔ B
Each object keeps the other above zero after external roots leave, so both rows remain live.
Strong A → B · weak B ⇢ A
A reaches zero, releases B, and both are destroyed. The back-edge upgrades only while A is live.
The compiler diagnoses the direct case where a class stores a closure that strongly captures that same self. Indirect application graph cycles still require an intentional weak edge from the program.
Destruction is observable
Last release can run class deinit, close a file handle, join an unfinished task, release an interface payload, or tear down a container graph. The optimizer preserves the order of ownership operations whenever a different order would change these effects.
The zero-object gate
Every successful differential specification ends with zero live runtime objects. Runtime unit tests additionally assert exact counts and destruction order across error, trap, rollback, worker transfer, and teardown paths.