re PR target/40934 (ICE in get_hard_regnum, at reg-stack.c:741)

2009-08-14  Paolo Bonzini  <bonzini@gnu.org>

	PR target/40934
	* config/i386/i386.c (ix86_fp_comparison_strategy):
	Only enable/disable sahf at function granularity. 

gcc/testsuite:
2009-08-14  Paolo Bonzini  <bonzini@gnu.org>

	PR target/40934
	* gcc.target/i386/pr40934.c: New.

From-SVN: r150754

gcc/ChangeLog

+2009-08-14  Paolo Bonzini  <bonzini@gnu.org>
+
+	PR target/40934
+	* config/i386/i386.c (ix86_fp_comparison_strategy):
+	Only enable/disable sahf at function granularity. 
+
 2009-08-14  Hans-Peter Nilsson  <hp@axis.com>
 
 	PR rtl-optimization/41064

gcc/config/i386/i386.c

@@ -14594,7 +14594,7 @@ ix86_fp_comparison_strategy (enum rtx_code code ATTRIBUTE_UNUSED)
   if (TARGET_CMOVE)
     return IX86_FPCMP_COMI;
 
-  if (TARGET_SAHF && (TARGET_USE_SAHF || optimize_insn_for_size_p ()))
+  if (TARGET_SAHF && (TARGET_USE_SAHF || optimize_function_for_size_p (cfun)))
     return IX86_FPCMP_SAHF;
 
   return IX86_FPCMP_ARITH;

gcc/testsuite/ChangeLog

+2009-08-14  Paolo Bonzini  <bonzini@gnu.org>
+
+	PR target/40934
+	* gcc.target/i386/pr40934.c: New.
+
 2009-08-14  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/41019

gcc/testsuite/gcc.target/i386/pr40934.c

+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-O2 -march=i586 -ffast-math" } */
+
+extern double host_frametime;
+extern float pitchvel;
+V_DriftPitch (float delta, float move)
+{
+  if (!delta)
+    move = host_frametime;
+  if (delta > 0)
+    ;
+  else if (delta < 0 && move > -delta)
+    pitchvel = 0;
+}