| ; 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) |
