65 lines
2.7 KiB
LLVM
65 lines
2.7 KiB
LLVM
; RUN: llc -start-after=codegenprepare -stop-before finalize-isel -o - %s | FileCheck %s
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; This tests that transferDbgValues() changes order of SDDbgValue transferred
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; to another node and debug info for 'ADD32ri' appears *after* the instruction.
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;
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; This test case was generated from the following program
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; using: clang -g -O3 -S -emit-llvm test.c
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;
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; int foo(int a, int *b) {
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; int c = a + 512;
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; if (c != 0)
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; *b = a;
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; return c;
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; }
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK-LABEL: bb.0.entry:
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; CHECK: %[[REG:[0-9]+]]:gr32 = ADD32ri %1, 512
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; CHECK-NEXT: DBG_VALUE %[[REG]]
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; Function Attrs: nofree norecurse nounwind uwtable writeonly
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define dso_local i32 @foo(i32 %a, i32* nocapture %b) local_unnamed_addr !dbg !7 {
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entry:
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%add = add nsw i32 %a, 512, !dbg !18
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call void @llvm.dbg.value(metadata i32 %add, metadata !16, metadata !DIExpression()), !dbg !17
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%cmp = icmp eq i32 %add, 0, !dbg !18
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br i1 %cmp, label %if.end, label %if.then, !dbg !18
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if.then: ; preds = %entry
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store i32 %a, i32* %b, align 4, !dbg !18
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br label %if.end, !dbg !18
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if.end: ; preds = %entry, %if.then
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ret i32 %add, !dbg !18
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/")
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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 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 10.0.0"}
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!7 = distinct !DISubprogram(name: "foo", scope: !8, file: !8, line: 1, type: !9, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13)
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!8 = !DIFile(filename: "test.c", directory: "/")
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!9 = !DISubroutineType(types: !10)
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!10 = !{!11, !11, !12}
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)
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!13 = !{!14, !15, !16}
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!14 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !8, line: 1, type: !11)
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!15 = !DILocalVariable(name: "b", arg: 2, scope: !7, file: !8, line: 1, type: !12)
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!16 = !DILocalVariable(name: "c", scope: !7, file: !8, line: 2, type: !11)
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!17 = !DILocation(line: 0, scope: !7)
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!18 = !DILocation(line: 2, column: 13, scope: !7)
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