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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
56 lines
2.7 KiB
LLVM
56 lines
2.7 KiB
LLVM
; RUN: opt < %s -S -inline -inline-threshold=2 | FileCheck %s
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; RUN: opt < %s -S -strip-debug -inline -inline-threshold=2 | FileCheck %s
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;
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; The purpose of this test is to check that debug info doesn't influence
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; inlining decisions.
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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"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
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define <4 x float> @inner_vectors(<4 x float> %a, <4 x float> %b) {
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entry:
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call void @llvm.dbg.value(metadata i32 undef, i64 0, metadata !MDLocalVariable(tag: DW_TAG_auto_variable), metadata !MDExpression())
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%mul = fmul <4 x float> %a, <float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00>
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call void @llvm.dbg.value(metadata i32 undef, i64 0, metadata !MDLocalVariable(tag: DW_TAG_auto_variable), metadata !MDExpression())
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%mul1 = fmul <4 x float> %b, <float 5.000000e+00, float 5.000000e+00, float 5.000000e+00, float 5.000000e+00>
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call void @llvm.dbg.value(metadata i32 undef, i64 0, metadata !MDLocalVariable(tag: DW_TAG_auto_variable), metadata !MDExpression())
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%add = fadd <4 x float> %mul, %mul1
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ret <4 x float> %add
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}
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define float @outer_vectors(<4 x float> %a, <4 x float> %b) {
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; CHECK-LABEL: @outer_vectors(
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; CHECK-NOT: call <4 x float> @inner_vectors(
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; CHECK: ret float
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entry:
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call void @llvm.dbg.value(metadata i32 undef, i64 0, metadata !MDLocalVariable(tag: DW_TAG_auto_variable), metadata !MDExpression())
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call void @llvm.dbg.value(metadata i32 undef, i64 0, metadata !MDLocalVariable(tag: DW_TAG_auto_variable), metadata !MDExpression())
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%call = call <4 x float> @inner_vectors(<4 x float> %a, <4 x float> %b)
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call void @llvm.dbg.value(metadata i32 undef, i64 0, metadata !MDLocalVariable(tag: DW_TAG_auto_variable), metadata !MDExpression())
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%vecext = extractelement <4 x float> %call, i32 0
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%vecext1 = extractelement <4 x float> %call, i32 1
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%add = fadd float %vecext, %vecext1
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%vecext2 = extractelement <4 x float> %call, i32 2
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%add3 = fadd float %add, %vecext2
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%vecext4 = extractelement <4 x float> %call, i32 3
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%add5 = fadd float %add3, %vecext4
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ret float %add5
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}
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attributes #0 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!llvm.ident = !{!5}
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!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !{}, globals: !2, imports: !2)
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!1 = !MDFile(filename: "", directory: "")
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!2 = !{i32 0}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 1, !"Debug Info Version", i32 3}
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!5 = !{!""}
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