[llvm] [X86][CodeGen] Return true when MIR is changed after optimizeCompareInstr (PR #91723)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Shengchen Kan (KanRobert)

<details>
<summary>Changes</summary>

This fixes the typo in 1be131ba275b


---
Full diff: https://github.com/llvm/llvm-project/pull/91723.diff


1 Files Affected:

- (modified) llvm/lib/Target/X86/X86InstrInfo.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp
index 0e5e52d4d88e8..d7641f5f48fd6 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.cpp
+++ b/llvm/lib/Target/X86/X86InstrInfo.cpp
@@ -5169,7 +5169,7 @@ bool X86InstrInfo::optimizeCompareInstr(MachineInstr &CmpInstr, Register SrcReg,
     // Fall through to optimize Cmp if Cmp is CMPrr or CMPri.
     if (NewOpcode == X86::CMP64rm || NewOpcode == X86::CMP32rm ||
         NewOpcode == X86::CMP16rm || NewOpcode == X86::CMP8rm)
-      return false;
+      return true;
   }
   }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/91723