re PR target/65729 (ICE (in prohibited_class_reg_set_mode_p, at…

re PR target/65729 (ICE (in prohibited_class_reg_set_mode_p, at lra-constraints.c) on arm-linux-gnueabihf)

gcc/
2015-04-14  Yvan Roux  <yvan.roux@linaro.org>

	PR target/65729
	* lra-constraints.c (prohibited_class_reg_set_mode_p): Restore and fix
	the assertiion.

gcc/testsuite/
2015-04-14  Yvan Roux  <yvan.roux@linaro.org>

	PR target/65729
	* gcc.target/arm/pr65729.c: New test.

From-SVN: r222101

gcc/ChangeLog

+2015-04-14  Yvan Roux  <yvan.roux@linaro.org>
+
+	PR target/65729
+	* lra-constraints.c (prohibited_class_reg_set_mode_p): Restore and fix
+	the assertiion.
+
 2015-04-14  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.h (LEGACY_INT_REG_P): New define.

gcc/lra-constraints.c

@@ -1656,8 +1656,7 @@ prohibited_class_reg_set_mode_p (enum reg_class rclass,
 {
   HARD_REG_SET temp;
   
-  // ??? Is this assert right
-  // lra_assert (hard_reg_set_subset_p (set, reg_class_contents[rclass]));
+  lra_assert (hard_reg_set_subset_p (reg_class_contents[rclass], set));
   COPY_HARD_REG_SET (temp, set);
   AND_COMPL_HARD_REG_SET (temp, lra_no_alloc_regs);
   return (hard_reg_set_subset_p

gcc/testsuite/ChangeLog

+2015-04-14  Yvan Roux  <yvan.roux@linaro.org>
+
+	PR target/65729
+	* gcc.target/arm/pr65729.c: New test.
+
 2015-04-14  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/65758

gcc/testsuite/gcc.target/arm/pr65729.c

+/* { dg-do compile } */
+/* { dg-options "-O2 -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16" } */
+
+int foo (void)
+{
+  double x = 0.0;
+  asm volatile ("" : "+gw" (x));
+  return x;
+}