forked from OSchip/llvm-project
69 lines
2.4 KiB
LLVM
69 lines
2.4 KiB
LLVM
|
; RUN: opt < %s -simplifycfg -S | FileCheck %s
|
||
|
|
|
||
|
|
; Check if the debug info for hoisted store for "ret = 0" is removed
|
||
|
|
;
|
||
|
|
; int foo(int x) {
|
||
|
|
; int ret = 1;
|
||
|
|
; if (x)
|
||
|
|
; ret = 0;
|
||
|
|
; return ret;
|
||
|
|
; }
|
||
|
|
;
|
||
|
|
; CHECK: store i32 1,{{.+}}!dbg ![[DLOC1:[0-9]+]]
|
||
|
|
; CHECK: icmp ne {{.+}}!dbg ![[DLOC2:[0-9]+]]
|
||
|
|
; CHECK: [[VREG:%[^ ]+]] = select
|
||
|
|
; CHECK: store i32 [[VREG]]
|
||
|
|
; CHECK-NOT: !dbg
|
||
|
|
; CHECK-SAME: {{$}}
|
||
|
|
; CHECK: ret {{.+}}!dbg ![[DLOC3:[0-9]+]]
|
||
|
|
; CHECK: ![[DLOC1]] = !DILocation(line: 2
|
||
|
|
; CHECK: ![[DLOC2]] = !DILocation(line: 3
|
||
|
|
; CHECK: ![[DLOC3]] = !DILocation(line: 5
|
||
|
|
|
||
|
|
target triple = "x86_64-unknown-linux-gnu"
|
||
|
|
|
||
|
|
; Function Attrs: noinline nounwind uwtable
|
||
|
|
define i32 @foo(i32) !dbg !6 {
|
||
|
|
%2 = alloca i32, align 4
|
||
|
|
%3 = alloca i32, align 4
|
||
|
|
store i32 %0, i32* %2, align 4
|
||
|
|
store i32 1, i32* %3, align 4, !dbg !14
|
||
|
|
%4 = load i32, i32* %2, align 4, !dbg !15
|
||
|
|
%5 = icmp ne i32 %4, 0, !dbg !15
|
||
|
|
br i1 %5, label %6, label %7, !dbg !17
|
||
|
|
|
||
|
|
; <label>:6: ; preds = %1
|
||
|
|
store i32 0, i32* %3, align 4, !dbg !18
|
||
|
|
br label %7, !dbg !19
|
||
|
|
|
||
|
|
; <label>:7: ; preds = %6, %1
|
||
|
|
%8 = load i32, i32* %3, align 4, !dbg !20
|
||
|
|
ret i32 %8, !dbg !21
|
||
|
|
}
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!0}
|
||
|
|
!llvm.module.flags = !{!3, !4}
|
||
|
|
|
||
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1)
|
||
|
|
!1 = !DIFile(filename: "foo.c", directory: "b/")
|
||
|
|
!2 = !{}
|
||
|
|
!3 = !{i32 2, !"Dwarf Version", i32 4}
|
||
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
||
|
|
!5 = !{}
|
||
|
|
!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
|
||
|
|
!7 = !DISubroutineType(types: !8)
|
||
|
|
!8 = !{!9, !9}
|
||
|
|
!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||
|
|
!10 = !DILocalVariable(name: "x", arg: 1, scope: !6, file: !1, line: 1, type: !9)
|
||
|
|
!11 = !DIExpression()
|
||
|
|
!12 = !DILocation(line: 1, column: 13, scope: !6)
|
||
|
|
!13 = !DILocalVariable(name: "ret", scope: !6, file: !1, line: 2, type: !9)
|
||
|
|
!14 = !DILocation(line: 2, column: 7, scope: !6)
|
||
|
|
!15 = !DILocation(line: 3, column: 7, scope: !16)
|
||
|
|
!16 = distinct !DILexicalBlock(scope: !6, file: !1, line: 3, column: 7)
|
||
|
|
!17 = !DILocation(line: 3, column: 7, scope: !6)
|
||
|
|
!18 = !DILocation(line: 4, column: 9, scope: !16)
|
||
|
|
!19 = !DILocation(line: 4, column: 5, scope: !16)
|
||
|
|
!20 = !DILocation(line: 5, column: 10, scope: !6)
|
||
|
|
!21 = !DILocation(line: 5, column: 3, scope: !6)
|