================
@@ -961,6 +961,19 @@ GCNTTIImpl::instCombineIntrinsic(InstCombiner &IC,
IntrinsicInst &II) const {
return IC.replaceInstUsesWith(II,
Constant::getNullValue(II.getType()));
}
}
+ if (ST->isWave32() && II.getType()->getIntegerBitWidth() == 64) {
+ // %b64 = call i64 ballot.i64(...)
+ // =>
+ // %b32 = call i32 ballot.i32(...)
+ // %b64 = zext i32 %b32 to i64
+ Value *Call = IC.Builder.CreateZExtOrBitCast(
----------------
arsenm wrote:
Should be CreateZExt, there's no way this can need a bitcast
https://github.com/llvm/llvm-project/pull/71556
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