140e1894f2
Patch 1/4 adding bitcode support. Store whether or not a function is using Key Instructions in its DISubprogram so that we don't need to rely on the -mllvm flag -dwarf-use-key-instructions to determine whether or not to interpret Key Instructions metadata to decide is_stmt placement at DWARF emission time. This makes bitcode support simple and enables well defined mixing of non-key-instructions and key-instructions functions in an LTO context. This patch adds the bit (using DISubprogram::SubclassData1). PR 144104 and 144103 use it during DWARF emission. PR 44102 adds bitcode support. See pull request for overview of alternative attempts.
65 lines
2.3 KiB
LLVM
65 lines
2.3 KiB
LLVM
; RUN: opt %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S \
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; RUN: | FileCheck %s
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;; Generated using:
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;; opt -passes=debugify --debugify-atoms --debugify-level=locations \
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;; llvm/test/Transforms/SimplifyCFG/debug-info-thread-phi.ll
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;; With unused/untested metadata nodes removed.
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;; Check the duplicated store gets distinct atom info in each branch.
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; CHECK-LABEL: @bar(
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; CHECK: if.then:
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; CHECK: store i32 1{{.*}}, !dbg [[DBG1:!.*]]
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; CHECK: if.end.1.critedge:
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; CHECK: store i32 1{{.*}}, !dbg [[DBG2:!.*]]
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;
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; CHECK: distinct !DISubprogram(name: "bar", {{.*}}keyInstructions: true)
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; CHECK: [[DBG1]] = !DILocation(line: 1{{.*}}, atomGroup: 1
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; CHECK: [[DBG2]] = !DILocation(line: 1{{.*}}, atomGroup: 2
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define void @bar(i32 %aa) !dbg !5 {
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entry:
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%aa.addr = alloca i32, align 4
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%bb = alloca i32, align 4
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store i32 %aa, ptr %aa.addr, align 4
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store i32 0, ptr %bb, align 4
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%tobool = icmp ne i32 %aa, 0
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br i1 %tobool, label %if.then, label %if.end
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if.then: ; preds = %entry
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call void @foo()
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br label %if.end
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if.end: ; preds = %if.then, %entry
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store i32 1, ptr %bb, align 4, !dbg !8
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br i1 %tobool, label %if.then.1, label %if.end.1
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if.then.1: ; preds = %if.end
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call void @foo()
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br label %if.end.1
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if.end.1: ; preds = %if.then.1, %if.end
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store i32 2, ptr %bb, align 4
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br label %for.end
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for.end: ; preds = %if.end.1
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ret void
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}
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declare void @foo()
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!llvm.dbg.cu = !{!0}
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!llvm.debugify = !{!2, !3}
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!llvm.module.flags = !{!4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
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!1 = !DIFile(filename: "llvm/test/Transforms/SimplifyCFG/debug-info-thread-phi.ll", directory: "/")
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!2 = !{i32 15}
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!3 = !{i32 0}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, keyInstructions: true)
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!6 = !DISubroutineType(types: !7)
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!7 = !{}
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!8 = !DILocation(line: 1, column: 1, scope: !5, atomGroup: 1, atomRank: 1)
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