| Mikael Holmen | 7a99e33 | 2017-08-24 09:05:00 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -reassociate < %s | FileCheck %s |
| 2 | |
| 3 | ; PR34231 |
| 4 | ; |
| 5 | ; Verify that the original debug location is kept if the |
| 6 | ; replacement debug location is missing when |
| 7 | ; reassociating expressions. |
| 8 | |
| 9 | define i16 @fn1() !dbg !3 { |
| 10 | ret i16 undef |
| 11 | } |
| 12 | |
| 13 | define void @fn2() !dbg !6 { |
| 14 | ; CHECK-LABEL: @fn2 |
| 15 | ; CHECK: call i16 @fn1(), !dbg ![[LOC1:[0-9]+]] |
| 16 | ; CHECK-NOT: or i16 |
| 17 | %inlinable_call = call i16 @fn1(), !dbg !7 |
| 18 | %dbgless_instruction = or i16 %inlinable_call, 0 |
| 19 | store i16 %dbgless_instruction, i16* undef, align 1 |
| 20 | unreachable |
| 21 | } |
| 22 | |
| 23 | define void @fn3() !dbg !8 { |
| 24 | ; CHECK-LABEL: @fn3 |
| 25 | ; CHECK: load i16, i16* undef, !dbg ![[LOC2:[0-9]+]] |
| 26 | ; CHECK-NOT: or i16 |
| 27 | %instruction = load i16, i16* undef, !dbg !9 |
| 28 | %dbgless_instruction = or i16 %instruction, 0 |
| 29 | store i16 %dbgless_instruction, i16* undef, align 1 |
| 30 | unreachable |
| 31 | } |
| 32 | |
| 33 | ; CHECK: ![[LOC1]] = !DILocation(line: 7 |
| 34 | ; CHECK: ![[LOC2]] = !DILocation(line: 9 |
| 35 | |
| 36 | !llvm.dbg.cu = !{!0} |
| 37 | !llvm.module.flags = !{!2} |
| 38 | |
| 39 | !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly) |
| 40 | !1 = !DIFile(filename: "foo.c", directory: "/") |
| 41 | !2 = !{i32 2, !"Debug Info Version", i32 3} |
| 42 | !3 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 2, type: !4, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !0) |
| 43 | !4 = !DISubroutineType(types: !5) |
| 44 | !5 = !{} |
| 45 | !6 = distinct !DISubprogram(name: "fn2", scope: !1, file: !1, line: 3, type: !4, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0) |
| 46 | !7 = !DILocation(line: 7, column: 10, scope: !6) |
| 47 | !8 = distinct !DISubprogram(name: "fn3", scope: !1, file: !1, line: 8, type: !4, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0) |
| 48 | !9 = !DILocation(line: 9, column: 10, scope: !8) |