IA MCU psABI support: GCC changes

[thirdparty/gcc.git] / gcc / common / config / i386 / i386-common.c

diff --git a/gcc/common/config/i386/i386-common.c b/gcc/common/config/i386/i386-common.c
index 0f8c3e1df04c9274640dfefd849f6fad9b9822c6..79b2472dc750973c30a319d1e8c7b9fbfba41b02 100644 (file)
--- a/gcc/common/config/i386/i386-common.c
+++ b/gcc/common/config/i386/i386-common.c
@@ -223,7 +223,7 @@ along with GCC; see the file COPYING3.  If not see
 
 bool
 ix86_handle_option (struct gcc_options *opts,
-                   struct gcc_options *opts_set ATTRIBUTE_UNUSED,
+                   struct gcc_options *opts_set,
                    const struct cl_decoded_option *decoded,
                    location_t loc)
 {
@@ -232,6 +232,20 @@ ix86_handle_option (struct gcc_options *opts,
 
   switch (code)
     {
+    case OPT_miamcu:
+      if (value)
+       {
+         /* Turn off x87/MMX/SSE/AVX codegen for -miamcu.  */
+         opts->x_target_flags &= ~MASK_80387;
+         opts_set->x_target_flags |= MASK_80387;
+         opts->x_ix86_isa_flags &= ~(OPTION_MASK_ISA_MMX_UNSET
+                                     | OPTION_MASK_ISA_SSE_UNSET);
+         opts->x_ix86_isa_flags_explicit |= (OPTION_MASK_ISA_MMX_UNSET
+                                             | OPTION_MASK_ISA_SSE_UNSET);
+
+       }
+      return true;
+
     case OPT_mmmx:
       if (value)
        {