================
@@ -93,6 +96,13 @@ static cl::opt<bool> DisableFDivExpand(
cl::ReallyHidden,
cl::init(false));
+// Disable bitsin(typeof(x)) - popcnt(x) to s_bcnt0(x) transformation.
+static cl::opt<bool>
+ DisableBcnt0("amdgpu-codegenprepare-disable-bcnt0",
+ cl::desc("Prevent transforming bitsin(typeof(x)) - "
+ "popcount(x) to bcnt0(x) in AMDGPUCodeGenPrepare"),
+ cl::ReallyHidden, cl::init(false));
+
----------------
jmmartinez wrote:
You can remove this. It is not used anywhere.
https://github.com/llvm/llvm-project/pull/164847
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