| ; RUN: opt -S -mtriple=x86_64 -codegenprepare < %s | FileCheck %s |
| ; |
| ; This test case has been generated by hand but is inspired by the |
| ; observation that compares that are sunk into the basic blocks where |
| ; their results are used did not retain their debug locs. This caused |
| ; sample profiling to attribute code to the wrong source lines. |
| ; |
| ; We check that the compare instruction retains its debug loc after |
| ; it is sunk into other.bb by the codegen prepare pass. |
| ; |
| ; CHECK: entry: |
| ; CHECK-NEXT: icmp{{.*}}%x, 0, !dbg ![[MDHANDLE:[0-9]*]] |
| ; CHECK: ![[MDHANDLE]] = !DILocation(line: 2 |
| ; |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define i32 @_Z3fooii(i32 %x, i32 %y) !dbg !5 { |
| entry: |
| %cmp17 = icmp sgt i32 %x, 0, !dbg !6 |
| br label %other.bb, !dbg !6 |
| |
| other.bb: |
| br i1 %cmp17, label %exit1.bb, label %exit2.bb, !dbg !7 |
| |
| exit1.bb: |
| %0 = add i32 %y, 42, !dbg !8 |
| ret i32 %0, !dbg !8 |
| |
| exit2.bb: |
| ret i32 44, !dbg !9 |
| |
| } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2) |
| !1 = !DIFile(filename: "test.cpp", directory: "/debuginfo/bug/cgp") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !1, file: !1, line: 1, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) |
| !6 = !DILocation(line: 2, column: 0, scope: !5) |
| !7 = !DILocation(line: 3, column: 0, scope: !5) |
| !8 = !DILocation(line: 4, column: 0, scope: !5) |
| !9 = !DILocation(line: 5, column: 0, scope: !5) |