84 lines
2.2 KiB
LLVM
84 lines
2.2 KiB
LLVM
; RUN: opt < %s -simplifycfg -S | FileCheck %s
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; TODO: Track the acutal DebugLoc of the hoisted instruction when no-line
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; DebugLoc is supported (https://reviews.llvm.org/D24180)
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; CHECK: line: 6
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; CHECK-NOT: line: 7
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; CHECK: line: 8
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; CHECK: line: 9
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; CHECK-NOT: line: 10
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; CHECK: line: 11
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; Checks if the debug info for hoisted "x = i" is removed
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; int x;
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; void bar();
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; void baz();
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;
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; void foo(int i) {
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; if (i == 0) {
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; x = i;
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; bar();
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; } else {
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; x = i;
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; baz();
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; }
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; }
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target triple = "x86_64-unknown-linux-gnu"
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@x = global i32 0, align 4
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; Function Attrs: uwtable
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define void @_Z3fooi(i32) #0 !dbg !6 {
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%2 = alloca i32, align 4
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store i32 %0, i32* %2, align 4, !tbaa !8
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%3 = load i32, i32* %2, align 4, !dbg !12, !tbaa !8
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%4 = icmp eq i32 %3, 0, !dbg !13
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br i1 %4, label %5, label %7, !dbg !12
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; <label>:5:
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%6 = load i32, i32* %2, align 4, !dbg !14, !tbaa !8
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store i32 %6, i32* @x, align 4, !dbg !15, !tbaa !8
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call void @_Z3barv(), !dbg !16
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br label %9, !dbg !17
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; <label>:7:
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%8 = load i32, i32* %2, align 4, !dbg !18, !tbaa !8
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store i32 %8, i32* @x, align 4, !dbg !19, !tbaa !8
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call void @_Z3bazv(), !dbg !20
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br label %9
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; <label>:9:
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ret void, !dbg !21
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}
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declare void @_Z3barv() #1
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declare void @_Z3bazv() #1
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1)
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!1 = !DIFile(filename: "a", directory: "b/")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{}
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!6 = distinct !DISubprogram(unit: !0)
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!7 = !DISubroutineType(types: !2)
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!8 = !{!9, !9, i64 0}
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!9 = !{!"int", !10, i64 0}
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!10 = !{!"omnipotent char", !11, i64 0}
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!11 = !{!"Simple C++ TBAA"}
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!12 = !DILocation(line: 6, column: 7, scope: !6)
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!13 = !DILocation(line: 6, column: 9, scope: !6)
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!14 = !DILocation(line: 7, column: 9, scope: !6)
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!15 = !DILocation(line: 7, column: 7, scope: !6)
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!16 = !DILocation(line: 8, column: 5, scope: !6)
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!17 = !DILocation(line: 9, column: 3, scope: !6)
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!18 = !DILocation(line: 10, column: 9, scope: !6)
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!19 = !DILocation(line: 10, column: 7, scope: !6)
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!20 = !DILocation(line: 11, column: 5, scope: !6)
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!21 = !DILocation(line: 13, column: 1, scope: !6)
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