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i386-common.c: Handle LZCNT.

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2013-06-22  Sriraman Tallam  <tmsriram@google.com>

	* common/config/i386/i386-common.c: Handle LZCNT.

From-SVN: r200347
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Sriraman Tallam 2013-06-23 00:57:40 +00:00 • committed by Sriraman Tallam
parent ca3ef38f6b
commit 495e687951
2 changed files with 18 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2013-06-22 Sriraman Tallam <tmsriram@google.com>
* common/config/i386/i386-common.c: Handle LZCNT.
2013-06-22 Andi Kleen <ak@linux.intel.com>
* doc/extend.texi: Use __atomic_store_n instead of

14
gcc/common/config/i386/i386-common.c
View file

@ -87,6 +87,7 @@ along with GCC; see the file COPYING3. If not see
#define OPTION_MASK_ISA_BMI_SET OPTION_MASK_ISA_BMI
#define OPTION_MASK_ISA_BMI2_SET OPTION_MASK_ISA_BMI2
#define OPTION_MASK_ISA_LZCNT_SET OPTION_MASK_ISA_LZCNT
#define OPTION_MASK_ISA_TBM_SET OPTION_MASK_ISA_TBM
#define OPTION_MASK_ISA_POPCNT_SET OPTION_MASK_ISA_POPCNT
#define OPTION_MASK_ISA_CX16_SET OPTION_MASK_ISA_CX16
@ -154,6 +155,7 @@ along with GCC; see the file COPYING3. If not see
#define OPTION_MASK_ISA_ABM_UNSET OPTION_MASK_ISA_ABM
#define OPTION_MASK_ISA_BMI_UNSET OPTION_MASK_ISA_BMI
#define OPTION_MASK_ISA_BMI2_UNSET OPTION_MASK_ISA_BMI2
#define OPTION_MASK_ISA_LZCNT_UNSET OPTION_MASK_ISA_LZCNT
#define OPTION_MASK_ISA_TBM_UNSET OPTION_MASK_ISA_TBM
#define OPTION_MASK_ISA_POPCNT_UNSET OPTION_MASK_ISA_POPCNT
#define OPTION_MASK_ISA_CX16_UNSET OPTION_MASK_ISA_CX16
@ -438,6 +440,18 @@ ix86_handle_option (struct gcc_options *opts,
}
return true;
case OPT_mlzcnt:
if (value)
{
opts->x_ix86_isa_flags |= OPTION_MASK_ISA_LZCNT_SET;
opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_LZCNT_SET;
}
else
{
opts->x_ix86_isa_flags &= ~OPTION_MASK_ISA_LZCNT_UNSET;
opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_LZCNT_UNSET;
}
case OPT_mtbm:
if (value)
{