[llvm] [GISel] #undef macros when they are no longer needed. NFC (PR #117652)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-globalisel

Author: Craig Topper (topperc)

<details>
<summary>Changes</summary>

These macros are created inside a function. They should be undefined before the end of the function.

---
Full diff: https://github.com/llvm/llvm-project/pull/117652.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp (+2) 


``````````diff
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 321760ef822bc2..abfca50a22bf1b 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -499,6 +499,8 @@ static RTLIB::Libcall getRTLibDesc(unsigned Opcode, unsigned Size) {
     RTLIBCASE(LLRINT_F);
   }
   llvm_unreachable("Unknown libcall function");
+#undef RTLIBCASE_INT
+#undef RTLIBCASE
 }
 
 /// True if an instruction is in tail position in its caller. Intended for

``````````

</details>


https://github.com/llvm/llvm-project/pull/117652