[libc-commits] [libc] [libc] Check if arm targets support FPSCR in FEnvImpl.h. (PR #72158)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: None (lntue)

<details>
<summary>Changes</summary>

https://github.com/llvm/llvm-project/issues/72157

---
Full diff: https://github.com/llvm/llvm-project/pull/72158.diff


1 Files Affected:

- (modified) libc/src/__support/FPUtil/FEnvImpl.h (+1-1) 


``````````diff
diff --git a/libc/src/__support/FPUtil/FEnvImpl.h b/libc/src/__support/FPUtil/FEnvImpl.h
index 6f2f3c75f512a3e..12f8a66508111fd 100644
--- a/libc/src/__support/FPUtil/FEnvImpl.h
+++ b/libc/src/__support/FPUtil/FEnvImpl.h
@@ -28,7 +28,7 @@
 // the apple condition here should be removed.
 #elif defined(LIBC_TARGET_ARCH_IS_X86) && !defined(__APPLE__)
 #include "x86_64/FEnvImpl.h"
-#elif defined(LIBC_TARGET_ARCH_IS_ARM)
+#elif defined(LIBC_TARGET_ARCH_IS_ARM) && __has_builtin(__builtin_arm_get_fpscr)
 #include "arm/FEnvImpl.h"
 #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
 #include "riscv/FEnvImpl.h"

``````````

</details>


https://github.com/llvm/llvm-project/pull/72158