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llvm-mirror/test/Transforms/LICM/debug-value.ll
Duncan P. N. Exon Smith 9f52f307c2 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()`).

llvm-svn: 232296
2015-03-15 01:21:30 +00:00

66 lines
3.8 KiB
LLVM

; RUN: opt -licm -basicaa < %s -S | FileCheck %s
define void @dgefa() nounwind ssp {
entry:
br label %for.body
for.body: ; preds = %for.cond.backedge, %entry
br i1 undef, label %if.then, label %for.cond.backedge, !dbg !11
for.cond.backedge: ; preds = %for.body61, %for.body61.us, %for.body
br i1 undef, label %for.end104, label %for.body, !dbg !15
if.then: ; preds = %for.body
br i1 undef, label %if.then27, label %if.end.if.end.split_crit_edge.critedge, !dbg !16
if.then27: ; preds = %if.then
; CHECK: tail call void @llvm.dbg.value
tail call void @llvm.dbg.value(metadata double undef, i64 0, metadata !19, metadata !MDExpression()), !dbg !21
br label %for.body61.us
if.end.if.end.split_crit_edge.critedge: ; preds = %if.then
br label %for.body61
for.body61.us: ; preds = %for.body61.us, %if.then27
br i1 undef, label %for.cond.backedge, label %for.body61.us, !dbg !23
for.body61: ; preds = %for.body61, %if.end.if.end.split_crit_edge.critedge
br i1 undef, label %for.cond.backedge, label %for.body61, !dbg !23
for.end104: ; preds = %for.cond.backedge
ret void, !dbg !24
}
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
!llvm.module.flags = !{!26}
!llvm.dbg.sp = !{!0, !6, !9, !10}
!0 = !MDSubprogram(name: "idamax", line: 112, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !25, scope: !1, type: !3)
!1 = !MDFile(filename: "/Volumes/Lalgate/work/llvm/projects/llvm-test/SingleSource/Benchmarks/CoyoteBench/lpbench.c", directory: "/private/tmp")
!2 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 127169)", isOptimized: true, emissionKind: 0, file: !25, enums: !8, retainedTypes: !8, subprograms: !8)
!3 = !MDSubroutineType(types: !4)
!4 = !{!5}
!5 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!6 = !MDSubprogram(name: "dscal", line: 206, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !25, scope: !1, type: !7)
!7 = !MDSubroutineType(types: !8)
!8 = !{null}
!9 = !MDSubprogram(name: "daxpy", line: 230, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !25, scope: !1, type: !7)
!10 = !MDSubprogram(name: "dgefa", line: 267, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !25, scope: !1, type: !7)
!11 = !MDLocation(line: 281, column: 9, scope: !12)
!12 = distinct !MDLexicalBlock(line: 272, column: 5, file: !25, scope: !13)
!13 = distinct !MDLexicalBlock(line: 271, column: 5, file: !25, scope: !14)
!14 = distinct !MDLexicalBlock(line: 267, column: 1, file: !25, scope: !10)
!15 = !MDLocation(line: 271, column: 5, scope: !14)
!16 = !MDLocation(line: 284, column: 10, scope: !17)
!17 = distinct !MDLexicalBlock(line: 282, column: 9, file: !25, scope: !12)
!18 = !{double undef}
!19 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "temp", line: 268, scope: !14, file: !1, type: !20)
!20 = !MDBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
!21 = !MDLocation(line: 286, column: 14, scope: !22)
!22 = distinct !MDLexicalBlock(line: 285, column: 13, file: !25, scope: !17)
!23 = !MDLocation(line: 296, column: 13, scope: !17)
!24 = !MDLocation(line: 313, column: 1, scope: !14)
!25 = !MDFile(filename: "/Volumes/Lalgate/work/llvm/projects/llvm-test/SingleSource/Benchmarks/CoyoteBench/lpbench.c", directory: "/private/tmp")
!26 = !{i32 1, !"Debug Info Version", i32 3}