; ModuleID = '/tmp/nix-shell.mXmHgC/cmpxchg1066927-8.bc' source_filename = "disasm-test/tests/cmpxchg.c" target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" @val = global i32 2344, align 4, !dbg !0 ; Function Attrs: noinline nounwind optnone sspstrong uwtable define i32 @do_atomic_update(i32 %0) #0 !dbg !15 { %2 = alloca i32, align 4 %3 = alloca i32, align 4 %4 = alloca i32, align 4 %5 = alloca i8, align 1 store i32 %0, i32* %2, align 4 call void @llvm.dbg.declare(metadata i32* %2, metadata !18, metadata !DIExpression()), !dbg !19 call void @llvm.dbg.declare(metadata i32* %3, metadata !20, metadata !DIExpression()), !dbg !21 store i32 2344, i32* %3, align 4, !dbg !21 %6 = load atomic i32, i32* %2 seq_cst, align 4, !dbg !22 store i32 %6, i32* %4, align 4, !dbg !22 %7 = load i32, i32* %3, align 4, !dbg !22 %8 = load i32, i32* %4, align 4, !dbg !22 %9 = cmpxchg weak i32* @val, i32 %7, i32 %8 seq_cst seq_cst, !dbg !22 %10 = extractvalue { i32, i1 } %9, 0, !dbg !22 %11 = extractvalue { i32, i1 } %9, 1, !dbg !22 br i1 %11, label %13, label %12, !dbg !22 12: ; preds = %1 store i32 %10, i32* %3, align 4, !dbg !22 br label %13, !dbg !22 13: ; preds = %12, %1 %14 = zext i1 %11 to i8, !dbg !22 store i8 %14, i8* %5, align 1, !dbg !22 %15 = load i8, i8* %5, align 1, !dbg !22 %16 = trunc i8 %15 to i1, !dbg !22 %17 = zext i1 %16 to i32, !dbg !22 ret i32 %17, !dbg !23 } ; Function Attrs: nounwind readnone speculatable willreturn declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 attributes #0 = { noinline nounwind optnone sspstrong uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="4" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #1 = { nounwind readnone speculatable willreturn } !llvm.dbg.cu = !{!2} !llvm.module.flags = !{!10, !11, !12, !13} !llvm.ident = !{!14} !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = distinct !DIGlobalVariable(name: "val", scope: !2, file: !3, line: 4, type: !6, isLocal: false, isDefinition: true) !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.1.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None) !3 = !DIFile(filename: "disasm-test/tests/cmpxchg.c", directory: "/home/kquick/work/DFAMS/llvm-pretty-bc-parser") !4 = !{} !5 = !{!0} !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "atomic_int", file: !7, line: 83, baseType: !8) !7 = !DIFile(filename: "/nix/store/4pk431ywfvw0k926blzwncnp699z3vh5-clang-wrapper-11.1.0/resource-root/include/stdatomic.h", directory: "") !8 = !DIDerivedType(tag: DW_TAG_atomic_type, baseType: !9) !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !10 = !{i32 7, !"Dwarf Version", i32 4} !11 = !{i32 2, !"Debug Info Version", i32 3} !12 = !{i32 1, !"wchar_size", i32 4} !13 = !{i32 7, !"PIC Level", i32 2} !14 = !{!"clang version 11.1.0"} !15 = distinct !DISubprogram(name: "do_atomic_update", scope: !3, file: !3, line: 6, type: !16, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4) !16 = !DISubroutineType(types: !17) !17 = !{!9, !6} !18 = !DILocalVariable(name: "newval", arg: 1, scope: !15, file: !3, line: 6, type: !6) !19 = !DILocation(line: 6, column: 33, scope: !15) !20 = !DILocalVariable(name: "old_val", scope: !15, file: !3, line: 7, type: !9) !21 = !DILocation(line: 7, column: 9, scope: !15) !22 = !DILocation(line: 8, column: 12, scope: !15) !23 = !DILocation(line: 8, column: 5, scope: !15)