From 7d3e2b78c74ad92bda0836de3e056ee8ec41e446 Mon Sep 17 00:00:00 2001 From: Eli Friedman Date: Wed, 28 Sep 2011 21:00:25 +0000 Subject: PR11033: Make sure we don't generate PCMPGTQ and PCMPEQQ if the target CPU does not support them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140723 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86ISelLowering.cpp | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'lib') diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index cab9161f5a..fc2d5ce64e 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -8555,6 +8555,13 @@ SDValue X86TargetLowering::LowerVSETCC(SDValue Op, SelectionDAG &DAG) const { if (Swap) std::swap(Op0, Op1); + // Check that the operation in question is available (most are plain SSE2, + // but PCMPGTQ and PCMPEQQ have different requirements). + if (Opc == X86ISD::PCMPGTQ && !Subtarget->hasSSE42() && !Subtarget->hasAVX()) + return SDValue(); + if (Opc == X86ISD::PCMPEQQ && !Subtarget->hasSSE41() && !Subtarget->hasAVX()) + return SDValue(); + // Since SSE has no unsigned integer comparisons, we need to flip the sign // bits of the inputs before performing those operations. if (FlipSigns) { -- cgit v1.2.3