[llvm] [GISel][AArch64] Reuse LHS and RHS in emitFPCompare instead of calling getReg() (NFC) (PR #155263)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-aarch64

Author: AZero13 (AZero13)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/155263.diff


1 Files Affected:

- (modified) llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp (+1-2) 


``````````diff
diff --git a/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp b/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
index 0bceb322726d1..0aefce8d32b2c 100644
--- a/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
+++ b/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
@@ -4875,8 +4875,7 @@ MachineInstr *AArch64InstructionSelector::emitConjunctionRec(
       auto Dst = MRI.cloneVirtualRegister(LHS);
       if (isa<GICmp>(Cmp))
         return emitSUBS(Dst, Cmp->getOperand(2), Cmp->getOperand(3), MIB);
-      return emitFPCompare(Cmp->getOperand(2).getReg(),
-                           Cmp->getOperand(3).getReg(), MIB);
+      return emitFPCompare(LHS, RHS, MIB, CC);
     }
     // Otherwise produce a ccmp.
     return emitConditionalComparison(LHS, RHS, CC, Predicate, OutCC, MIB);

``````````

</details>


https://github.com/llvm/llvm-project/pull/155263