57 lines
2.4 KiB
LLVM
57 lines
2.4 KiB
LLVM
; RUN: llc -stop-after=early-tailduplication < %s | FileCheck %s
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;
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; Check that DebugLoc attached to the branch instruction of
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; 'while.cond1.preheader.lr.ph' survives after tailduplication pass.
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;
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; CHECK: [[DLOC:![0-9]+]] = !DILocation(line: 9, column: 5, scope: !{{[0-9]+}})
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; CHECK: [[VREG:%[^ ]+]]:gr64 = COPY $rdi
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; CHECK: TEST64rr [[VREG]], [[VREG]]
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; CHECK-NEXT: JCC_1 {{.+}}, debug-location [[DLOC]]
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; CHECK-NEXT: JMP_1 {{.+}}, debug-location [[DLOC]]
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target triple = "x86_64-unknown-linux-gnu"
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%struct.Node = type { %struct.Node* }
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define i32 @foo(%struct.Node* readonly %node, %struct.Node* readnone %root) !dbg !6 {
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entry:
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%cmp = icmp eq %struct.Node* %node, %root, !dbg !8
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br i1 %cmp, label %while.end4, label %while.cond1.preheader.lr.ph, !dbg !10
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while.cond1.preheader.lr.ph: ; preds = %entry
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%tobool = icmp eq %struct.Node* %node, null
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br i1 %tobool, label %while.cond1.preheader.us.preheader, label %while.body2.preheader, !dbg !11
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while.body2.preheader: ; preds = %while.cond1.preheader.lr.ph
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br label %while.body2, !dbg !11
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while.cond1.preheader.us.preheader: ; preds = %while.cond1.preheader.lr.ph
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br label %while.cond1.preheader.us, !dbg !10
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while.cond1.preheader.us: ; preds = %while.cond1.preheader.us.preheader, %while.cond1.preheader.us
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br label %while.cond1.preheader.us, !dbg !10
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while.body2: ; preds = %while.body2.preheader, %while.body2
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br label %while.body2, !dbg !11
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while.end4: ; preds = %entry
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ret i32 0, !dbg !12
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, emissionKind: LineTablesOnly)
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!1 = !DIFile(filename: "foo.c", directory: "b/")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{}
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!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 5, type: !7, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
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!7 = !DISubroutineType(types: !2)
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!8 = !DILocation(line: 7, column: 15, scope: !9)
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!9 = !DILexicalBlockFile(scope: !6, file: !1, discriminator: 2)
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!10 = !DILocation(line: 7, column: 3, scope: !9)
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!11 = !DILocation(line: 9, column: 5, scope: !9)
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!12 = !DILocation(line: 14, column: 3, scope: !6)
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