Update copyright years.

[thirdparty/gcc.git] / libgcc / config / i386 / crtfastmath.c

diff --git a/libgcc/config/i386/crtfastmath.c b/libgcc/config/i386/crtfastmath.c
index a0916ac8dcf3096127a9e065a019a781892d0d56..3a0d0bba111a88c64bc52d11e638a0746e7db71e 100644 (file)
--- a/libgcc/config/i386/crtfastmath.c
+++ b/libgcc/config/i386/crtfastmath.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ * Copyright (C) 2005-2024 Free Software Foundation, Inc.
  *
  * This file is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -29,15 +29,57 @@
 /* All 64-bit targets have SSE and DAZ;
    only check them explicitly for 32-bit ones. */
 #include "cpuid.h"
-#endif
 
-static void __attribute__((constructor))
-#ifndef __x86_64__
+__attribute__ ((target("fxsr,sse")))
+static void
 /* The i386 ABI only requires 4-byte stack alignment, so this is necessary
    to make sure the fxsave struct gets correct alignment.
    See PR27537 and PR28621.  */
 __attribute__ ((force_align_arg_pointer))
+set_fast_math_sse (unsigned int edx)
+{
+  unsigned int mxcsr;
+  
+  if (edx & bit_FXSAVE)
+    {
+      /* Check if DAZ is available.  */
+      struct
+      {
+       unsigned short cwd;
+       unsigned short swd;
+       unsigned short twd;
+       unsigned short fop;
+       unsigned int fip;
+       unsigned int fcs;
+       unsigned int foo;
+       unsigned int fos;
+       unsigned int mxcsr;
+       unsigned int mxcsr_mask;
+       unsigned int st_space[32];
+       unsigned int xmm_space[32];
+       unsigned int padding[56];
+      } __attribute__ ((aligned (16))) fxsave;
+
+      /* This is necessary since some implementations of FXSAVE
+        do not modify reserved areas within the image.  */
+      fxsave.mxcsr_mask = 0;
+
+      __builtin_ia32_fxsave (&fxsave);
+
+      mxcsr = fxsave.mxcsr;
+
+      if (fxsave.mxcsr_mask & MXCSR_DAZ)
+       mxcsr |= MXCSR_DAZ;
+    }
+  else
+    mxcsr = __builtin_ia32_stmxcsr ();
+
+  mxcsr |= MXCSR_FTZ;
+  __builtin_ia32_ldmxcsr (mxcsr);
+}
 #endif
+
+static void __attribute__((constructor))
 set_fast_math (void)
 {
 #ifndef __x86_64__
@@ -47,46 +89,7 @@ set_fast_math (void)
     return;
 
   if (edx & bit_SSE)
-    {
-      unsigned int mxcsr;
-  
-      if (edx & bit_FXSAVE)
-       {
-         /* Check if DAZ is available.  */
-         struct
-           {
-             unsigned short cwd;
-             unsigned short swd;
-             unsigned short twd;
-             unsigned short fop;
-             unsigned int fip;
-             unsigned int fcs;
-             unsigned int foo;
-             unsigned int fos;
-             unsigned int mxcsr;
-             unsigned int mxcsr_mask;
-             unsigned int st_space[32];
-             unsigned int xmm_space[32];
-             unsigned int padding[56];
-           } __attribute__ ((aligned (16))) fxsave;
-
-         /* This is necessary since some implementations of FXSAVE
-            do not modify reserved areas within the image.  */
-         fxsave.mxcsr_mask = 0;
-
-         __builtin_ia32_fxsave (&fxsave);
-
-         mxcsr = fxsave.mxcsr;
-
-         if (fxsave.mxcsr_mask & MXCSR_DAZ)
-           mxcsr |= MXCSR_DAZ;
-       }
-      else
-       mxcsr = __builtin_ia32_stmxcsr ();
-
-      mxcsr |= MXCSR_FTZ;
-      __builtin_ia32_ldmxcsr (mxcsr);
-    }
+    set_fast_math_sse (edx);
 #else
   unsigned int mxcsr = __builtin_ia32_stmxcsr ();
   mxcsr |= MXCSR_DAZ | MXCSR_FTZ;