| Server IP : 82.208.35.60 / Your IP : 216.73.216.89 Web Server : Apache/2.4.55 (FreeBSD) OpenSSL/1.1.1q-freebsd PHP/7.3.31 System : FreeBSD server7.d2m.cz 12.4-RELEASE-p9 FreeBSD 12.4-RELEASE-p9 GENERIC amd64 User : studiokobylisy_cz ( 1008) PHP Version : 7.3.31 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : OFF | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /usr/ports/devel/llvm12/files/ |
Upload File : |
--- llvm/lib/Target/X86/X86ISelLowering.cpp.orig
+++ llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -36201,7 +36201,11 @@
(RootVT.is128BitVector() && Subtarget.hasVLX())) &&
(MaskEltSizeInBits > 8 || Subtarget.hasBWI()) &&
isSequentialOrUndefInRange(Mask, 0, NumMaskElts, 0, 2)) {
- if (Depth == 0 && Root.getOpcode() == ISD::TRUNCATE)
+ // Bail if this was already a truncation or PACK node.
+ // We sometimes fail to match PACK if we demand known undef elements.
+ if (Depth == 0 && (Root.getOpcode() == ISD::TRUNCATE ||
+ Root.getOpcode() == X86ISD::PACKSS ||
+ Root.getOpcode() == X86ISD::PACKUS))
return SDValue(); // Nothing to do!
ShuffleSrcVT = MVT::getIntegerVT(MaskEltSizeInBits * 2);
ShuffleSrcVT = MVT::getVectorVT(ShuffleSrcVT, NumMaskElts / 2);