forked from OSchip/llvm-project
14 lines
596 B
LLVM
14 lines
596 B
LLVM
; RUN: opt -instcombine -mtriple=aarch64-linux-gnu -mattr=+sve -S < %s | FileCheck %s
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; We shouldn't fold bitcast(insert <vscale x 1 x iX> .., iX %val, i32 0)
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; into bitcast(iX %val) for scalable vectors.
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define <vscale x 2 x i8> @bitcast_of_insert_i8_i16(i16 %val) #0 {
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; CHECK-LABEL: @bitcast_of_insert_i8_i16(
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; CHECK-NOT: bitcast i16 %val to <vscale x 2 x i8>
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; CHECK: bitcast <vscale x 1 x i16> %op2 to <vscale x 2 x i8>
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entry:
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%op2 = insertelement <vscale x 1 x i16> undef, i16 %val, i32 0
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%0 = bitcast <vscale x 1 x i16> %op2 to <vscale x 2 x i8>
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ret <vscale x 2 x i8> %0
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}
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