| ; RUN: opt < %s -add-discriminators -S | FileCheck %s |
| ; RUN: opt < %s -passes=add-discriminators -S | FileCheck %s |
| |
| ; Basic DWARF discriminator test. All the instructions in block |
| ; 'if.then' should have a different discriminator value than |
| ; the conditional branch at the end of block 'entry'. |
| ; |
| ; Original code: |
| ; |
| ; void foo(int i) { |
| ; int x; |
| ; if (i < 10) x = i; |
| ; } |
| |
| define void @foo(i32 %i) #0 !dbg !4 { |
| entry: |
| %i.addr = alloca i32, align 4 |
| %x = alloca i32, align 4 |
| store i32 %i, i32* %i.addr, align 4 |
| %0 = load i32, i32* %i.addr, align 4, !dbg !10 |
| %cmp = icmp slt i32 %0, 10, !dbg !10 |
| br i1 %cmp, label %if.then, label %if.end, !dbg !10 |
| |
| if.then: ; preds = %entry |
| %1 = load i32, i32* %i.addr, align 4, !dbg !10 |
| ; CHECK: %1 = load i32, i32* %i.addr, align 4, !dbg ![[THEN:[0-9]+]] |
| |
| store i32 %1, i32* %x, align 4, !dbg !10 |
| ; CHECK: store i32 %1, i32* %x, align 4, !dbg ![[THEN]] |
| |
| br label %if.end, !dbg !10 |
| ; CHECK: br label %if.end, !dbg ![[THEN]] |
| |
| if.end: ; preds = %if.then, %entry |
| ret void, !dbg !12 |
| ; CHECK: ret void, !dbg ![[END:[0-9]+]] |
| } |
| |
| attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!7, !8} |
| !llvm.ident = !{!9} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: NoDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "basic.c", directory: ".") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2) |
| !5 = !DIFile(filename: "basic.c", directory: ".") |
| !6 = !DISubroutineType(types: !2) |
| !7 = !{i32 2, !"Dwarf Version", i32 4} |
| !8 = !{i32 1, !"Debug Info Version", i32 3} |
| !9 = !{!"clang version 3.5 "} |
| !10 = !DILocation(line: 3, scope: !11) |
| !11 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !4) |
| !12 = !DILocation(line: 4, scope: !4) |
| |
| ; CHECK: ![[FOO:[0-9]+]] = distinct !DISubprogram(name: "foo" |
| ; CHECK: ![[BLOCK:[0-9]+]] = distinct !DILexicalBlock(scope: ![[FOO]],{{.*}} line: 3) |
| ; CHECK: ![[THEN]] = !DILocation(line: 3, scope: ![[BLOCKFILE:[0-9]+]]) |
| ; CHECK: ![[BLOCKFILE]] = !DILexicalBlockFile(scope: ![[BLOCK]],{{.*}} discriminator: 2) |
| ; CHECK: ![[END]] = !DILocation(line: 4, scope: ![[FOO]]) |