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s390.c (s390_option_override): Make -mhard-dfp the default if possible and not specified otherwise. 

2012-02-21  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_option_override): Make -mhard-dfp the
	default if possible and not specified otherwise.

From-SVN: r184439
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Andreas Krebbel 2012-02-21 14:51:44 +00:00 committed by Andreas Krebbel
parent 333f1d8799
commit 61369bb849
2 changed files with 10 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-02-21 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* config/s390/s390.c (s390_option_override): Make -mhard-dfp the
default if possible and not specified otherwise.
2012-02-21 Richard Guenther <rguenther@suse.de>
PR middle-end/52314

5
gcc/config/s390/s390.c
View File

@ -1540,6 +1540,11 @@ s390_option_override (void)
if (TARGET_64BIT && !TARGET_ZARCH)
error ("64-bit ABI not supported in ESA/390 mode");
/* Use hardware DFP if available and not explicitly disabled by
user. E.g. with -m31 -march=z10 -mzarch */
if (!(target_flags_explicit & MASK_HARD_DFP) && TARGET_DFP)
target_flags |= MASK_HARD_DFP;
if (TARGET_HARD_DFP && !TARGET_DFP)
{
if (target_flags_explicit & MASK_HARD_DFP)