5b7e21a6b7
There are 2 cases when we create PHI nodes: * For the result of the call that was duplicated in the split blocks. Those PHI nodes should have the debug location of the call. * For values produced before the call. Those instructions need to be duplicated in the split blocks and the PHI nodes should have the debug locations of those instructions. Fixes PR37962. Reviewers: junbuml, gbedwell, vsk Reviewed By: junbuml Tags: #debug-info Differential Revision: https://reviews.llvm.org/D51919 llvm-svn: 341970
86 lines
3.9 KiB
LLVM
86 lines
3.9 KiB
LLVM
; RUN: opt -callsite-splitting -S < %s | FileCheck %s
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; CHECK-LABEL: @test1
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; CHECK: [[R1:%.+]] = call i32 @callee(i32 0, i32 %dd), !dbg [[DBG1:!.*]]
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; CHECK: [[R2:%.+]] = call i32 @callee(i32 1, i32 %dd), !dbg [[DBG1]]
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; CHECK-LABEL: CallSite:
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; CHECK-NEXT: phi i32 [ [[R2]], %land.rhs.split ], [ [[R1]], %entry.split ], !dbg [[DBG1]]
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define i32 @test1(i32* dereferenceable(4) %cc, i32 %dd) !dbg !6 {
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entry:
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br i1 undef, label %CallSite, label %land.rhs
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land.rhs: ; preds = %entry
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br label %CallSite
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CallSite: ; preds = %land.rhs, %entry
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%pv = phi i32 [ 0, %entry ], [ 1, %land.rhs ]
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%call = call i32 @callee(i32 %pv, i32 %dd), !dbg !18
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ret i32 %call
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}
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; CHECK-LABEL: @test2
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; CHECK: [[LV1:%.*]] = load i32, i32* %ptr, align 4, !dbg [[DBG_LV:!.*]]
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; CHECK-NEXT: [[R1:%.+]] = call i32 @callee(i32 0, i32 10), !dbg [[DBG_CALL:!.*]]
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; CHECK: [[LV2:%.*]] = load i32, i32* %ptr, align 4, !dbg [[DBG_LV]]
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; CHECK-NEXT: [[R2:%.+]] = call i32 @callee(i32 0, i32 %i), !dbg [[DBG_CALL]]
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; CHECK-LABEL: CallSite:
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; CHECK-NEXT: phi i32 [ [[LV1]], %Header.split ], [ [[LV2]], %TBB.split ], !dbg [[DBG_LV]]
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; CHECK-NEXT: phi i32 [ [[R1]], %Header.split ], [ [[R2]], %TBB.split ], !dbg [[DBG_CALL]]
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define void @test2(i32* %ptr, i32 %i) !dbg !19 {
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Header:
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%tobool = icmp ne i32 %i, 10
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br i1 %tobool, label %TBB, label %CallSite
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TBB: ; preds = %Header
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br i1 undef, label %CallSite, label %End
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CallSite: ; preds = %TBB, %Header
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%lv = load i32, i32* %ptr, align 4, !dbg !25
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%cv = call i32 @callee(i32 0, i32 %i), !dbg !26
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%sub = sub nsw i32 %lv, %cv
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br label %End
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End: ; preds = %CallSite, %TBB
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ret void
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}
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define i32 @callee(i32 %aa, i32 %bb) {
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entry:
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%add = add nsw i32 %aa, %bb
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ret i32 %add
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}
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!llvm.dbg.cu = !{!0}
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!llvm.debugify = !{!3, !4}
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!llvm.module.flags = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "<stdin>", directory: "/")
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!2 = !{}
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!3 = !{i32 23}
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!4 = !{i32 11}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = distinct !DISubprogram(name: "test", linkageName: "test", scope: null, file: !1, line: 3, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, retainedNodes: !8)
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!7 = !DISubroutineType(types: !2)
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!8 = !{!9, !11, !13, !15, !16, !17}
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!9 = !DILocalVariable(name: "2", scope: !6, file: !1, line: 3, type: !10)
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!10 = !DIBasicType(name: "ty64", size: 64, encoding: DW_ATE_unsigned)
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!11 = !DILocalVariable(name: "3", scope: !6, file: !1, line: 5, type: !12)
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!12 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
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!13 = !DILocalVariable(name: "4", scope: !6, file: !1, line: 6, type: !14)
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!14 = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned)
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!15 = !DILocalVariable(name: "5", scope: !6, file: !1, line: 9, type: !12)
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!16 = !DILocalVariable(name: "6", scope: !6, file: !1, line: 10, type: !12)
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!17 = !DILocalVariable(name: "7", scope: !6, file: !1, line: 11, type: !10)
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!18 = !DILocation(line: 10, column: 1, scope: !6)
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!19 = distinct !DISubprogram(name: "test_add_new_phi", linkageName: "test_add_new_phi", scope: null, file: !1, line: 14, type: !7, isLocal: false, isDefinition: true, scopeLine: 14, isOptimized: true, unit: !0, retainedNodes: !20)
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!20 = !{!21, !22, !23, !24}
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!21 = !DILocalVariable(name: "8", scope: !19, file: !1, line: 14, type: !14)
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!22 = !DILocalVariable(name: "9", scope: !19, file: !1, line: 17, type: !10)
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!23 = !DILocalVariable(name: "10", scope: !19, file: !1, line: 18, type: !12)
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!24 = !DILocalVariable(name: "11", scope: !19, file: !1, line: 20, type: !12)
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!25 = !DILocation(line: 18, column: 1, scope: !19)
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!26 = !DILocation(line: 19, column: 1, scope: !19)
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