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https://github.com/c64scene-ar/llvm-6502.git
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08e687e684
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
60 lines
3.4 KiB
LLVM
60 lines
3.4 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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declare i64 @llvm.objectsize.i64.p0i8(i8*, i1) nounwind readnone
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declare i8* @foo(i8*, i32, i64, i64) nounwind
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define hidden i8* @foobar(i8* %__dest, i32 %__val, i64 %__len) nounwind inlinehint ssp {
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entry:
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%__dest.addr = alloca i8*, align 8
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%__val.addr = alloca i32, align 4
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%__len.addr = alloca i64, align 8
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store i8* %__dest, i8** %__dest.addr, align 8
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; CHECK-NOT: call void @llvm.dbg.declare
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; CHECK: call void @llvm.dbg.value
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call void @llvm.dbg.declare(metadata i8** %__dest.addr, metadata !0, metadata !MDExpression()), !dbg !16
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store i32 %__val, i32* %__val.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %__val.addr, metadata !7, metadata !MDExpression()), !dbg !18
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store i64 %__len, i64* %__len.addr, align 8
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call void @llvm.dbg.declare(metadata i64* %__len.addr, metadata !9, metadata !MDExpression()), !dbg !20
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%tmp = load i8*, i8** %__dest.addr, align 8, !dbg !21
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%tmp1 = load i32, i32* %__val.addr, align 4, !dbg !21
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%tmp2 = load i64, i64* %__len.addr, align 8, !dbg !21
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%tmp3 = load i8*, i8** %__dest.addr, align 8, !dbg !21
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%0 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp3, i1 false), !dbg !21
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%call = call i8* @foo(i8* %tmp, i32 %tmp1, i64 %tmp2, i64 %0), !dbg !21
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ret i8* %call, !dbg !21
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}
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!llvm.dbg.cu = !{!3}
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!llvm.module.flags = !{!30}
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!0 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "__dest", line: 78, arg: 1, scope: !1, file: !2, type: !6)
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!1 = !MDSubprogram(name: "foobar", line: 79, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 79, file: !27, scope: !2, type: !4, function: i8* (i8*, i32, i64)* @foobar, variables: !25)
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!2 = !MDFile(filename: "string.h", directory: "Game")
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!3 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 127710)", isOptimized: true, emissionKind: 0, file: !28, enums: !29, retainedTypes: !29, subprograms: !24)
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!4 = !MDSubroutineType(types: !5)
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!5 = !{!6}
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!6 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, scope: !3, baseType: null)
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!7 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "__val", line: 78, arg: 2, scope: !1, file: !2, type: !8)
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!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "__len", line: 78, arg: 3, scope: !1, file: !2, type: !10)
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!10 = !MDDerivedType(tag: DW_TAG_typedef, name: "size_t", line: 80, file: !27, scope: !3, baseType: !11)
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!11 = !MDDerivedType(tag: DW_TAG_typedef, name: "__darwin_size_t", line: 90, file: !27, scope: !3, baseType: !12)
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!12 = !MDBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
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!16 = !MDLocation(line: 78, column: 28, scope: !1)
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!18 = !MDLocation(line: 78, column: 40, scope: !1)
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!20 = !MDLocation(line: 78, column: 54, scope: !1)
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!21 = !MDLocation(line: 80, column: 3, scope: !22)
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!22 = distinct !MDLexicalBlock(line: 80, column: 3, file: !27, scope: !23)
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!23 = distinct !MDLexicalBlock(line: 79, column: 1, file: !27, scope: !1)
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!24 = !{!1}
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!25 = !{!0, !7, !9}
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!26 = !MDFile(filename: "bits.c", directory: "Game")
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!27 = !MDFile(filename: "string.h", directory: "Game")
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!28 = !MDFile(filename: "bits.c", directory: "Game")
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!29 = !{i32 0}
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!30 = !{i32 1, !"Debug Info Version", i32 3}
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