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author | Filipe Cabecinhas <me@filcab.net> | 2014-06-22 17:21:37 +0000 |
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committer | Filipe Cabecinhas <me@filcab.net> | 2014-06-22 17:21:37 +0000 |
commit | 7798d5992aa8d1bdf96b1c8399d26b6d38a998b5 (patch) | |
tree | 8423e3de48d23bfbea2cb466cc28e14503e69d85 /lib/Target | |
parent | fe755c57f8958726b367253d8fe0c8bfb3404351 (diff) | |
download | llvm-7798d5992aa8d1bdf96b1c8399d26b6d38a998b5.tar.gz llvm-7798d5992aa8d1bdf96b1c8399d26b6d38a998b5.tar.bz2 llvm-7798d5992aa8d1bdf96b1c8399d26b6d38a998b5.tar.xz |
Fix PR20087 by using the source index when changing the vector load
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211472 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
-rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 5cabd14064..bc4168b20a 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -7805,12 +7805,13 @@ static SDValue getINSERTPS(ShuffleVectorSDNode *SVOp, SDLoc &dl, std::find_if(Mask.begin(), Mask.end(), FromV2Predicate) - Mask.begin(); } + unsigned SrcIndex = Mask[DestIndex] % 4; if (MayFoldLoad(From)) { // Trivial case, when From comes from a load and is only used by the // shuffle. Make it use insertps from the vector that we need from that // load. SDValue NewLoad = - NarrowVectorLoadToElement(cast<LoadSDNode>(From), DestIndex, DAG); + NarrowVectorLoadToElement(cast<LoadSDNode>(From), SrcIndex, DAG); if (!NewLoad.getNode()) return SDValue(); @@ -7831,7 +7832,6 @@ static SDValue getINSERTPS(ShuffleVectorSDNode *SVOp, SDLoc &dl, } // Vector-element-to-vector - unsigned SrcIndex = Mask[DestIndex] % 4; SDValue InsertpsMask = DAG.getIntPtrConstant(DestIndex << 4 | SrcIndex << 6); return DAG.getNode(X86ISD::INSERTPS, dl, VT, To, From, InsertpsMask); } |