[flang-commits] [flang] 1eb4e9f - [flang] arm build fix (#124562)

[via flang-commits]

Author: vdonaldson
Date: 2025-01-27T10:32:13-05:00
New Revision: 1eb4e9f88b827f9adbcdd5f385f75406aa604812

URL: https://github.com/llvm/llvm-project/commit/1eb4e9f88b827f9adbcdd5f385f75406aa604812
DIFF: https://github.com/llvm/llvm-project/commit/1eb4e9f88b827f9adbcdd5f385f75406aa604812.diff

LOG: [flang] arm build fix (#124562)

Added: 
    

Modified: 
    flang/runtime/exceptions.cpp

Removed: 
    


################################################################################
diff  --git a/flang/runtime/exceptions.cpp b/flang/runtime/exceptions.cpp
index 7fca0c431f8cd0..4ea11aa6ee8fc0 100644
--- a/flang/runtime/exceptions.cpp
+++ b/flang/runtime/exceptions.cpp
@@ -108,7 +108,7 @@ bool RTNAME(GetUnderflowMode)(void) {
   return _MM_GET_FLUSH_ZERO_MODE() == _MM_FLUSH_ZERO_OFF;
 #elif defined(_FPU_GETCW)
   uint32_t fpcr;
-  _FPU_GETCW(fpcr);
+  __asm__ __volatile__("mrs    %w0, fpcr" : "=r"(fpcr));
   return (fpcr & _FPU_FPCR_FZ_MASK_) != _FPU_FPCR_FZ_MASK_;
 #else
   return false;
@@ -119,13 +119,13 @@ void RTNAME(SetUnderflowMode)(bool flag) {
   _MM_SET_FLUSH_ZERO_MODE(flag ? _MM_FLUSH_ZERO_OFF : _MM_FLUSH_ZERO_ON);
 #elif defined(_FPU_GETCW)
   uint32_t fpcr;
-  _FPU_GETCW(fpcr);
+  __asm__ __volatile__("mrs    %w0, fpcr" : "=r"(fpcr));
   if (flag) {
     fpcr &= ~_FPU_FPCR_FZ_MASK_;
   } else {
     fpcr |= _FPU_FPCR_FZ_MASK_;
   }
-  _FPU_SETCW(fpcr);
+  __asm__ __volatile__("msr    fpcr, %w0" : : "r"(fpcr));
 #endif
 }