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20fc6ac99e
The existing code in getMemsetValue only handled integer-preferred types when
the fill value was not a constant. Make this more robust in two ways:
1. If the preferred type is a floating-point value, do the mul-splat trick on
the corresponding integer type and then bitcast.
2. If the preferred type is a vector, do the mul-splat trick on one vector
element, and then build a vector out of them.
Fixes PR22754 (although, we should also turn off use of vector types at -O0).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233749 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
592 B
LLVM
25 lines
592 B
LLVM
; RUN: llc < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-n32:64"
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target triple = "powerpc64le"
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; Function Attrs: nounwind
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define void @test_vsx() unnamed_addr #0 align 2 {
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entry:
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%0 = load i32, i32* undef, align 4
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%1 = trunc i32 %0 to i8
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call void @llvm.memset.p0i8.i64(i8* null, i8 %1, i64 32, i32 1, i1 false)
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ret void
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; CHECK-LABEL: @test_vsx
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; CHECK: stxvd2x
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; CHECK: stxvd2x
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; CHECK: blr
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}
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; Function Attrs: nounwind
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #1
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attributes #0 = { nounwind "target-cpu"="pwr8" }
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attributes #1 = { nounwind }
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