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https://github.com/c64scene-ar/llvm-6502.git
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8dc7f94f4d
Fixes an instruction selection failure detected by llvm-stress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195444 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
1.0 KiB
LLVM
28 lines
1.0 KiB
LLVM
; RUN: llc -march=mips < %s
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; RUN: llc -march=mips -mattr=+msa,+fp64 < %s
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; RUN: llc -march=mipsel < %s
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; RUN: llc -march=mipsel -mattr=+msa,+fp64 < %s
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; This test originally failed for MSA with a "Cannot select ..." error.
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; This happened because the legalizer treated undef's in the <4 x float>
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; constant as equivalent to the defined elements when checking if it a constant
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; splat, but then proceeded to legalize the undef's to zero, leaving it as a
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; non-splat that cannot be selected. It should have eliminated the undef's by
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; rewriting the splat constant.
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; It should at least successfully build.
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define void @autogen_SD2501752154() {
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BB:
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%BC = bitcast <4 x i32> <i32 -1, i32 -1, i32 undef, i32 undef> to <4 x float>
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br label %CF74
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CF74: ; preds = %CF74, %CF
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%E54 = extractelement <1 x i1> undef, i32 0
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br i1 %E54, label %CF74, label %CF79
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CF79: ; preds = %CF75
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%I63 = insertelement <4 x float> %BC, float undef, i32 0
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ret void
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}
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