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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
53 lines
3.1 KiB
LLVM
53 lines
3.1 KiB
LLVM
; RUN: opt < %s -mem2reg -S | FileCheck %s
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define double @testfunc(i32 %i, double %j) nounwind ssp {
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entry:
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%i_addr = alloca i32 ; <i32*> [#uses=2]
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%j_addr = alloca double ; <double*> [#uses=2]
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%retval = alloca double ; <double*> [#uses=2]
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%0 = alloca double ; <double*> [#uses=2]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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call void @llvm.dbg.declare(metadata i32* %i_addr, metadata !0, metadata !MDExpression()), !dbg !8
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; CHECK: call void @llvm.dbg.value(metadata i32 %i, i64 0, metadata ![[IVAR:[0-9]*]], metadata {{.*}})
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; CHECK: call void @llvm.dbg.value(metadata double %j, i64 0, metadata ![[JVAR:[0-9]*]], metadata {{.*}})
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; CHECK: ![[IVAR]] = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i"
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; CHECK: ![[JVAR]] = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j"
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store i32 %i, i32* %i_addr
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call void @llvm.dbg.declare(metadata double* %j_addr, metadata !9, metadata !MDExpression()), !dbg !8
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store double %j, double* %j_addr
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%1 = load i32, i32* %i_addr, align 4, !dbg !10 ; <i32> [#uses=1]
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%2 = add nsw i32 %1, 1, !dbg !10 ; <i32> [#uses=1]
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%3 = sitofp i32 %2 to double, !dbg !10 ; <double> [#uses=1]
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%4 = load double, double* %j_addr, align 8, !dbg !10 ; <double> [#uses=1]
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%5 = fadd double %3, %4, !dbg !10 ; <double> [#uses=1]
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store double %5, double* %0, align 8, !dbg !10
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%6 = load double, double* %0, align 8, !dbg !10 ; <double> [#uses=1]
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store double %6, double* %retval, align 8, !dbg !10
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br label %return, !dbg !10
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return: ; preds = %entry
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%retval1 = load double, double* %retval, !dbg !10 ; <double> [#uses=1]
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ret double %retval1, !dbg !10
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!3}
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!llvm.module.flags = !{!14}
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!0 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 2, arg: 0, scope: !1, file: !2, type: !7)
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!1 = !MDSubprogram(name: "testfunc", linkageName: "testfunc", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 2, file: !12, scope: !2, type: !4, function: double (i32, double)* @testfunc)
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!2 = !MDFile(filename: "testfunc.c", directory: "/tmp")
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!3 = !MDCompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !12, enums: !13, retainedTypes: !13)
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!4 = !MDSubroutineType(types: !5)
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!5 = !{!6, !7, !6}
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!6 = !MDBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
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!7 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !MDLocation(line: 2, scope: !1)
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!9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 2, arg: 0, scope: !1, file: !2, type: !6)
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!10 = !MDLocation(line: 3, scope: !11)
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!11 = distinct !MDLexicalBlock(line: 2, column: 0, file: !12, scope: !1)
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!12 = !MDFile(filename: "testfunc.c", directory: "/tmp")
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!13 = !{i32 0}
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!14 = !{i32 1, !"Debug Info Version", i32 3}
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