33 lines
1.2 KiB
LLVM
33 lines
1.2 KiB
LLVM
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; RUN: llc -march=hexagon -hexagon-hvx-widen=32 < %s | FileCheck %s
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; Check that we don't generate lots of vinserts (of 0 that should be undef).
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; CHECK: vinsert
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; CHECK: vinsert
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; CHECK-NOT: vinsert
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target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"
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target triple = "hexagon"
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define dllexport void @f0(i8* noalias align 128 %a0) #0 {
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b0:
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%v0 = bitcast i8* %a0 to i32*
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%v1 = getelementptr inbounds i32, i32* %v0, i32 undef
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%v2 = bitcast i32* %v1 to <7 x i32>*
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br label %b1
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b1: ; preds = %b0
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%v3 = load i8, i8* undef, align 1
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%v4 = insertelement <7 x i8> undef, i8 %v3, i32 0
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%v5 = shufflevector <7 x i8> %v4, <7 x i8> undef, <7 x i32> zeroinitializer
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%v6 = zext <7 x i8> %v5 to <7 x i32>
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%v7 = load <7 x i8>, <7 x i8>* undef, align 1
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%v8 = zext <7 x i8> %v7 to <7 x i32>
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%v9 = mul nsw <7 x i32> %v6, %v8
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%v10 = add nsw <7 x i32> %v9, zeroinitializer
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store <7 x i32> %v10, <7 x i32>* %v2, align 4
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ret void
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}
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attributes #0 = { nounwind "target-cpu"="hexagonv66" "target-features"="+hvx,+hvx-length128b" }
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