forked from OSchip/llvm-project
79 lines
2.8 KiB
LLVM
79 lines
2.8 KiB
LLVM
; RUN: llc -filetype=asm -asm-verbose=0 < %s | FileCheck %s
|
|
|
|
; int main()
|
|
; {
|
|
; int x = 0;
|
|
; if (x > 0)
|
|
; return x;
|
|
; x = -1; // <== this line should have correct debug location
|
|
; return -1;
|
|
; }
|
|
|
|
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
|
|
target triple = "armv7--linux-gnueabihf"
|
|
|
|
; Function Attrs: nounwind
|
|
define i32 @main() !dbg !4 {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%x = alloca i32, align 4
|
|
store i32 0, i32* %retval
|
|
call void @llvm.dbg.declare(metadata i32* %x, metadata !10, metadata !11), !dbg !12
|
|
store i32 0, i32* %x, align 4, !dbg !12
|
|
%0 = load i32, i32* %x, align 4, !dbg !13
|
|
%cmp = icmp sgt i32 %0, 0, !dbg !15
|
|
br i1 %cmp, label %if.then, label %if.end, !dbg !16
|
|
|
|
if.then: ; preds = %entry
|
|
%1 = load i32, i32* %x, align 4, !dbg !17
|
|
store i32 %1, i32* %retval, !dbg !18
|
|
br label %return, !dbg !18
|
|
|
|
if.end: ; preds = %entry
|
|
; Materialize the constant.
|
|
; CHECK: .loc 1 0
|
|
; CHECK-NEXT: mvn r0, #0
|
|
|
|
; The backend performs the store to %retval first, for some reason.
|
|
; CHECK-NEXT: .loc 1 7 5
|
|
; CHECK-NEXT: str r0, [sp, #4]
|
|
store i32 -1, i32* %x, align 4, !dbg !19
|
|
|
|
; CHECK-NEXT: .loc 1 6 7
|
|
; CHECK-NEXT: str r0, [sp]
|
|
store i32 -1, i32* %retval, !dbg !20
|
|
br label %return, !dbg !20
|
|
|
|
return: ; preds = %if.end, %if.then
|
|
%2 = load i32, i32* %retval, !dbg !21
|
|
ret i32 %2, !dbg !21
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata)
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!8, !9}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false, emissionKind: FullDebug)
|
|
!1 = !DIFile(filename: "test.c", directory: "/home/user/clang/build")
|
|
!2 = !{}
|
|
!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, unit: !0, retainedNodes: !2)
|
|
!5 = !DISubroutineType(types: !6)
|
|
!6 = !{!7}
|
|
!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!8 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!9 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!10 = !DILocalVariable(name: "x", scope: !4, file: !1, line: 3, type: !7)
|
|
!11 = !DIExpression()
|
|
!12 = !DILocation(line: 3, column: 9, scope: !4)
|
|
!13 = !DILocation(line: 4, column: 9, scope: !14)
|
|
!14 = distinct !DILexicalBlock(scope: !4, file: !1, line: 4, column: 9)
|
|
!15 = !DILocation(line: 4, column: 11, scope: !14)
|
|
!16 = !DILocation(line: 4, column: 9, scope: !4)
|
|
!17 = !DILocation(line: 5, column: 13, scope: !14)
|
|
!18 = !DILocation(line: 5, column: 9, scope: !14)
|
|
!19 = !DILocation(line: 6, column: 7, scope: !4)
|
|
!20 = !DILocation(line: 7, column: 5, scope: !4)
|
|
!21 = !DILocation(line: 8, column: 1, scope: !4)
|