llvm-6502/test/Transforms/Scalarizer/dbginfo.ll
Duncan P. N. Exon Smith 08e687e684 Verifier: Check debug info intrinsic arguments
Verify that debug info intrinsic arguments are valid.  (These checks
will not recurse through the full debug info graph, so they don't need
to be cordoned of in `DebugInfoVerifier`.)

With those checks in place, changing the `DbgIntrinsicInst` accessors to
downcast to `MDLocalVariable` and `MDExpression` is natural (added isa
specializations in `Metadata.h` to support this).

Added tests to `test/Verifier` for the new -verify checks, and fixed the
debug info in all the in-tree tests.

If you have out-of-tree testcases that have started to fail to -verify,
hopefully the verify checks are helpful.  The most likely problem is
that the expression argument is `!{}` (instead of `!MDExpression()`).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232296 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-15 01:21:30 +00:00

87 lines
5.5 KiB
LLVM

; RUN: opt %s -scalarizer -scalarize-load-store -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
; Function Attrs: nounwind uwtable
define void @f1(<4 x i32>* nocapture %a, <4 x i32>* nocapture readonly %b, <4 x i32>* nocapture readonly %c) #0 {
; CHECK: @f1(
; CHECK: %a.i0 = bitcast <4 x i32>* %a to i32*
; CHECK: %a.i1 = getelementptr i32, i32* %a.i0, i32 1
; CHECK: %a.i2 = getelementptr i32, i32* %a.i0, i32 2
; CHECK: %a.i3 = getelementptr i32, i32* %a.i0, i32 3
; CHECK: %c.i0 = bitcast <4 x i32>* %c to i32*
; CHECK: %c.i1 = getelementptr i32, i32* %c.i0, i32 1
; CHECK: %c.i2 = getelementptr i32, i32* %c.i0, i32 2
; CHECK: %c.i3 = getelementptr i32, i32* %c.i0, i32 3
; CHECK: %b.i0 = bitcast <4 x i32>* %b to i32*
; CHECK: %b.i1 = getelementptr i32, i32* %b.i0, i32 1
; CHECK: %b.i2 = getelementptr i32, i32* %b.i0, i32 2
; CHECK: %b.i3 = getelementptr i32, i32* %b.i0, i32 3
; CHECK: tail call void @llvm.dbg.value(metadata <4 x i32>* %a, i64 0, metadata !{{[0-9]+}}, metadata {{.*}}), !dbg !{{[0-9]+}}
; CHECK: tail call void @llvm.dbg.value(metadata <4 x i32>* %b, i64 0, metadata !{{[0-9]+}}, metadata {{.*}}), !dbg !{{[0-9]+}}
; CHECK: tail call void @llvm.dbg.value(metadata <4 x i32>* %c, i64 0, metadata !{{[0-9]+}}, metadata {{.*}}), !dbg !{{[0-9]+}}
; CHECK: %bval.i0 = load i32, i32* %b.i0, align 16, !dbg ![[TAG1:[0-9]+]], !tbaa ![[TAG2:[0-9]+]]
; CHECK: %bval.i1 = load i32, i32* %b.i1, align 4, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: %bval.i2 = load i32, i32* %b.i2, align 8, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: %bval.i3 = load i32, i32* %b.i3, align 4, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: %cval.i0 = load i32, i32* %c.i0, align 16, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: %cval.i1 = load i32, i32* %c.i1, align 4, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: %cval.i2 = load i32, i32* %c.i2, align 8, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: %cval.i3 = load i32, i32* %c.i3, align 4, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: %add.i0 = add i32 %bval.i0, %cval.i0, !dbg ![[TAG1]]
; CHECK: %add.i1 = add i32 %bval.i1, %cval.i1, !dbg ![[TAG1]]
; CHECK: %add.i2 = add i32 %bval.i2, %cval.i2, !dbg ![[TAG1]]
; CHECK: %add.i3 = add i32 %bval.i3, %cval.i3, !dbg ![[TAG1]]
; CHECK: store i32 %add.i0, i32* %a.i0, align 16, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: store i32 %add.i1, i32* %a.i1, align 4, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: store i32 %add.i2, i32* %a.i2, align 8, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: store i32 %add.i3, i32* %a.i3, align 4, !dbg ![[TAG1]], !tbaa ![[TAG2]]
; CHECK: ret void
entry:
tail call void @llvm.dbg.value(metadata <4 x i32>* %a, i64 0, metadata !15, metadata !MDExpression()), !dbg !20
tail call void @llvm.dbg.value(metadata <4 x i32>* %b, i64 0, metadata !16, metadata !MDExpression()), !dbg !20
tail call void @llvm.dbg.value(metadata <4 x i32>* %c, i64 0, metadata !17, metadata !MDExpression()), !dbg !20
%bval = load <4 x i32>, <4 x i32>* %b, align 16, !dbg !21, !tbaa !22
%cval = load <4 x i32>, <4 x i32>* %c, align 16, !dbg !21, !tbaa !22
%add = add <4 x i32> %bval, %cval, !dbg !21
store <4 x i32> %add, <4 x i32>* %a, align 16, !dbg !21, !tbaa !22
ret void, !dbg !25
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!18, !26}
!llvm.ident = !{!19}
!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 194134) (llvm/trunk 194126)", isOptimized: true, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
!1 = !MDFile(filename: "/tmp/add.c", directory: "/home/richards/llvm/build")
!2 = !{i32 0}
!3 = !{!4}
!4 = !MDSubprogram(name: "f1", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 4, file: !1, scope: !5, type: !6, function: void (<4 x i32>*, <4 x i32>*, <4 x i32>*)* @f1, variables: !14)
!5 = !MDFile(filename: "/tmp/add.c", directory: "/home/richards/llvm/build")
!6 = !MDSubroutineType(types: !7)
!7 = !{null, !8, !8, !8}
!8 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
!9 = !MDDerivedType(tag: DW_TAG_typedef, name: "V4SI", line: 1, file: !1, baseType: !10)
!10 = !MDCompositeType(tag: DW_TAG_array_type, size: 128, align: 128, flags: DIFlagVector, baseType: !11, elements: !12)
!11 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!12 = !{!13}
!13 = !MDSubrange(count: 4)
!14 = !{!15, !16, !17}
!15 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "a", line: 3, arg: 1, scope: !4, file: !5, type: !8)
!16 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "b", line: 3, arg: 2, scope: !4, file: !5, type: !8)
!17 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 3, arg: 3, scope: !4, file: !5, type: !8)
!18 = !{i32 2, !"Dwarf Version", i32 4}
!19 = !{!"clang version 3.4 (trunk 194134) (llvm/trunk 194126)"}
!20 = !MDLocation(line: 3, scope: !4)
!21 = !MDLocation(line: 5, scope: !4)
!22 = !{!23, !23, i64 0}
!23 = !{!"omnipotent char", !24, i64 0}
!24 = !{!"Simple C/C++ TBAA"}
!25 = !MDLocation(line: 6, scope: !4)
!26 = !{i32 1, !"Debug Info Version", i32 3}