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Fix the lowering of VECTOR_SHUFFLE on SPU to handle splats.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106419 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kalle Raiskila 2010-06-21 14:42:19 +00:00
parent 3193a689db
commit 91fdee125c
2 changed files with 7 additions and 2 deletions
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2
lib/Target/CellSPU/SPUISelLowering.cpp
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@ -1791,7 +1791,7 @@ static SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) {
} else {
rotate = false;
}
} else if (PrevElt == 0) {
} else if (i == 0) {
// First time through, need to keep track of previous element
PrevElt = SrcElt;
} else {

7
test/CodeGen/CellSPU/shuffles.ll
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@ -5,6 +5,11 @@ define <4 x float> @shuffle(<4 x float> %param1, <4 x float> %param2) {
; CHECK: shufb {{\$., \$4, \$3, \$.}}
%val= shufflevector <4 x float> %param1, <4 x float> %param2, <4 x i32> <i32 4,i32 1,i32 2,i32 3>
ret <4 x float> %val
}
define <4 x float> @splat(float %param1) {
%vec = insertelement <1 x float> undef, float %param1, i32 0
%val= shufflevector <1 x float> %vec, <1 x float> undef, <4 x i32> <i32 0,i32 0,i32 0,i32 0>
ret <4 x float> %val
}