revert: re PR target/89397 (ICE in build_call_expr_loc_array at gcc/tree.c:11563 since r229082)

Revert:
        PR target/89397
        * config/i386/i386.c (ix86_option_override_internal): Set
        opts->x_ix86_fpmath to FPMATH_387 when SSE is disabled.

        gcc/testsuite/

        PR target/89397
        * gcc.target/i386/pr89397.c: New test.

From-SVN: r269040

gcc/ChangeLog

@@ -16,12 +16,6 @@
 
 	* config/gcn/gcn.c (print_operand): Fix typo.
 
-2019-02-19  H.J. Lu  <hongjiu.lu@intel.com>
-
-	PR target/89397
-	* config/i386/i386.c (ix86_option_override_internal): Set
-	opts->x_ix86_fpmath to FPMATH_387 when SSE is disabled.
-
 2019-02-19  Richard Biener  <rguenther@suse.de>
 
         PR middle-end/88074

gcc/config/i386/i386.c

@@ -4310,10 +4310,11 @@ ix86_option_override_internal (bool main_args_p,
 	  if (!TARGET_SSE_P (opts->x_ix86_isa_flags))
 	    {
 	      if (TARGET_80387_P (opts->x_target_flags))
+		{
 		  warning (0, "SSE instruction set disabled, using 387 arithmetics");
-	      /* NB: 387 codegen is guarded by TARGET_80387.  */
 		  opts->x_ix86_fpmath = FPMATH_387;
 		}
+	    }
 	  else if ((opts->x_ix86_fpmath & FPMATH_387)
 		   && !TARGET_80387_P (opts->x_target_flags))
 	    {

gcc/testsuite/ChangeLog

@@ -28,11 +28,6 @@
 	* c-c++-common/goacc/asyncwait-5.c: Remove XFAILs.
 	* gfortran.dg/goacc/asyncwait-5.f: Likewise.
 
-2019-02-19  H.J. Lu  <hongjiu.lu@intel.com>
-
-	PR target/89397
-	* gcc.target/i386/pr89397.c: New test.
-
 2019-02-19  Richard Biener  <rguenther@suse.de>
 
         PR middle-end/88074

gcc/testsuite/gcc.target/i386/pr89397.c

-/* { dg-do compile } */
-/* { dg-options "-mfpmath=sse,387 -msoft-float -mno-sse" } */
-
-_Atomic double a;
-int b;
-
-void
-foo (void)
-{
-  a += b; /* { dg-error "SSE register return with SSE disabled" "" { target { ! ia32 } } } */
-}