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783a31ce57
Summary: If the instruction in the eliminateFrameIndex function is a DBG_VALUE instruction, it requires special processing. The frame register is set to VRFrame and the offset is based on the object offset. The code is similar to the code used in lib/CodeGen/PrologEpilogInserter.cpp. Reviewers: tra Subscribers: jholewinski, llvm-commits Differential Revision: https://reviews.llvm.org/D53657 llvm-svn: 345269
82 lines
2.8 KiB
LLVM
82 lines
2.8 KiB
LLVM
; RUN: llc -mtriple=nvptx64-nvidia-cuda < %s | FileCheck %s
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; Generated with -O1 from:
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; int f1();
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; void f2(int*);
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; int f3(int);
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;
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; int foo() {
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; int i = 3;
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; f3(i);
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; i = 7;
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; i = f1();
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; f2(&i);
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; return 0;
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; }
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;
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; Test that we generate valid debug info for optimized code,
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; particularly variables that are described as constants and passed
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; by reference.
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;
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; CHECK: DEBUG_VALUE: foo:i <- [DW_OP_deref] $vrdepot
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; CHECK: DEBUG_VALUE: foo:i <- 3
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; CHECK: DEBUG_VALUE: foo:i <- 7
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; CHECK: DEBUG_VALUE: foo:i <- %
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; Function Attrs: nounwind ssp uwtable
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define i32 @foo() #0 !dbg !4 {
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entry:
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%i = alloca i32, align 4
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call void @llvm.dbg.value(metadata i32 3, metadata !10, metadata !DIExpression()), !dbg !15
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%call = call i32 @f3(i32 3) #3, !dbg !16
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call void @llvm.dbg.value(metadata i32 7, metadata !10, metadata !DIExpression()), !dbg !18
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%call1 = call i32 (...) @f1() #3, !dbg !19
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call void @llvm.dbg.value(metadata i32 %call1, metadata !10, metadata !DIExpression()), !dbg !19
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store i32 %call1, i32* %i, align 4, !dbg !19, !tbaa !20
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call void @llvm.dbg.value(metadata i32* %i, metadata !10, metadata !DIExpression(DW_OP_deref)), !dbg !24
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call void @f2(i32* %i) #3, !dbg !24
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ret i32 0, !dbg !25
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}
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declare i32 @f3(i32)
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declare i32 @f1(...)
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declare void @f2(i32*)
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { nounwind ssp uwtable }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!11, !12}
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!llvm.ident = !{!13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
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!1 = !DIFile(filename: "dbg-value-const-byref.c", directory: "")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "foo", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, retainedNodes: !9)
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!5 = !DIFile(filename: "dbg-value-const-byref.c", directory: "")
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!6 = !DISubroutineType(types: !7)
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!7 = !{!8}
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !{!10}
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!10 = !DILocalVariable(name: "i", line: 6, scope: !4, file: !5, type: !8)
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!11 = !{i32 2, !"Dwarf Version", i32 2}
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!12 = !{i32 1, !"Debug Info Version", i32 3}
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!13 = !{!"clang version 3.5.0 "}
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!14 = !{i32 3}
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!15 = !DILocation(line: 6, scope: !4)
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!16 = !DILocation(line: 7, scope: !4)
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!17 = !{i32 7}
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!18 = !DILocation(line: 8, scope: !4)
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!19 = !DILocation(line: 9, scope: !4)
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!20 = !{!21, !21, i64 0}
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!21 = !{!"int", !22, i64 0}
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!22 = !{!"omnipotent char", !23, i64 0}
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!23 = !{!"Simple C/C++ TBAA"}
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!24 = !DILocation(line: 10, scope: !4)
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!25 = !DILocation(line: 11, scope: !4)
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