[llvm] [X86] Sink NOT to be fold into ANDN (PR #172329)
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 17 04:53:41 PST 2025
================
@@ -7198,6 +7198,28 @@ bool X86TTIImpl::isProfitableToSinkOperands(Instruction *I,
SmallVectorImpl<Use *> &Ops) const {
using namespace llvm::PatternMatch;
+ if (I->getOpcode() == Instruction::And &&
+ (ST->hasBMI() || (I->getType()->isVectorTy() && ST->hasSSE2()))) {
+ for (auto &Op : I->operands()) {
----------------
RKSimon wrote:
Feasible to add a `PatternMatch::m_Use(Use *&U)` matcher?
https://github.com/llvm/llvm-project/pull/172329
More information about the llvm-commits
mailing list