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r122705 - in /trunk/gcc: ChangeLog config/i386/...
- From: uros at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Thu, 08 Mar 2007 17:21:41 -0000
- Subject: r122705 - in /trunk/gcc: ChangeLog config/i386/...
Author: uros
Date: Thu Mar 8 17:21:40 2007
New Revision: 122705
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122705
Log:
* config/i386/i386.h (TARGET_SAHF): New define.
* config/i386/i386.c (ix86_tune_features) [X86_TUNE_USE_SAHF]:
Also enable for m_K8, m_AMDFAM10 and m_CORE2.
(x86_sahf): New global variable.
(override_options): Add PTA_NO_SAHF to pta_flags enum. Recode
pta_flags masks using shifts. Add PTA_NO_SAHF to x86_64 and
nocona processor flags. Set x86_sahf when PTA_NO_SAHF is not set
in processor flags. Do not unconditionally disable TARGET_USE_SAHF
for 64-bit.
(ix86_fp_comparison_sahf_cost): Return high value for !TARGET_SAHF.
(ix86_expand_fp_compare): Check for TARGET_CMOVE or TARGET_SAHF
when expanding fcomi/sahf based tests.
(ix86_emit_fp_unordered_jump): Check for TARGET_SAHF when
expanding sahf based alternative. Emit sahf based sequence when
optimizing for code size.
* config/i386/i386.md (x86_sahf_1): Do not disable for
TARGET_64BIT, enable for TARGET_SAHF.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/config/i386/i386.h
trunk/gcc/config/i386/i386.md