================
@@ -1977,6 +1989,37 @@ Value
*AMDGPUCodeGenPrepareImpl::applyFractPat(IRBuilder<> &Builder,
return insertValues(Builder, FractArg->getType(), ResultVals);
}
+bool AMDGPUCodeGenPrepareImpl::visitCtpop(IntrinsicInst &I) {
+ uint32_t BitWidth, DestinationWidth, IntrinsicWidth;
+ if (!I.hasOneUse() || !I.getType()->isIntegerTy() ||
+ !ST.hasBCNT(BitWidth = I.getType()->getIntegerBitWidth()))
+ return false;
+
+ BinaryOperator *MustBeSub = dyn_cast<BinaryOperator>(I.user_back());
+ if (!MustBeSub || MustBeSub->getOpcode() != BinaryOperator::Sub)
+ return false;
+
+ ConstantInt *FirstOperand = dyn_cast<ConstantInt>(MustBeSub->getOperand(0));
+ if (!FirstOperand || FirstOperand->getZExtValue() != BitWidth)
+ return false;
----------------
linuxrocks123 wrote:
Thanks, done.
https://github.com/llvm/llvm-project/pull/164847
_______________________________________________
cfe-commits mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
