https://github.com/Bryce-MW updated
https://github.com/llvm/llvm-project/pull/77964
>From d4c312b9dbf447d0a53dda0e6cdc482bd908430b Mon Sep 17 00:00:00 2001
From: Bryce Wilson
Date: Fri, 12 Jan 2024 16:01:32 -0600
Subject: [PATCH 01/11] [X86] Use RORX over SHR imm
---
@@ -4212,6 +4213,89 @@ MachineSDNode *X86DAGToDAGISel::emitPCMPESTR(unsigned
ROpc, unsigned MOpc,
return CNode;
}
+// When the consumer of a right shift (arithmetic or logical) wouldn't
+// notice the difference if the instruction was a rotate right instead
+// (because
