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| author | H.J. Lu <hongjiu.lu@intel.com> | 2014-01-17 15:23:58 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2014-01-17 07:23:58 -0800 |
| commit | 9a7f94d78b9468ba79ebad169fb1f262cf5950ac (patch) | |
| tree | 85cbf2b0c5da82944051e42957aaab5b6f8e81ad /gcc/gimplify.c | |
| parent | 0ffc4683170aa3cdb3c244745f7d52ae798da520 (diff) | |
| download | gcc-9a7f94d78b9468ba79ebad169fb1f262cf5950ac.zip gcc-9a7f94d78b9468ba79ebad169fb1f262cf5950ac.tar.gz gcc-9a7f94d78b9468ba79ebad169fb1f262cf5950ac.tar.bz2 | |
Add X86_TUNE_AVOID_LEA_FOR_ADDR
ix86_split_lea_for_addr transforms a single LEA instruction into a
series of MOV and ADD instructions. For
lea 0x400(%edx, %ecx, 8), %edx
we get
mov %ecx, %edx
add %ecx, %edx
add %ecx, %edx
add %ecx, %edx
add %ecx, %edx
add %ecx, %edx
add %ecx, %edx
add %ecx, %edx
add $0x400, %edx
For -mtune=intel, we want to turn on X86_TUNE_OPT_AGU, but avoid
ix86_split_lea_for_addr to optimize for both Haswell and Silvermont.
This patch adds X86_TUNE_AVOID_LEA_FOR_ADDR and PROCESSOR_INTEL.
We keep PROCESSOR_INTEL the same as PROCESSOR_SILVERMONT, except that
X86_TUNE_AVOID_LEA_FOR_ADDR isn't turned on for PROCESSOR_INTEL.
* config/i386/i386-c.c (ix86_target_macros_internal): Handle
PROCESSOR_INTEL. Treat like PROCESSOR_GENERIC.
* config/i386/i386.c (intel_memcpy): New. Duplicate slm_memcpy.
(intel_memset): New. Duplicate slm_memset.
(intel_cost): New. Duplicate slm_cost.
(m_INTEL): New macro.
(processor_target_table): Add "intel".
(ix86_option_override_internal): Replace PROCESSOR_SILVERMONT
with PROCESSOR_INTEL for "intel".
(ix86_lea_outperforms): Support PROCESSOR_INTEL. Duplicate
PROCESSOR_SILVERMONT.
(ix86_avoid_lea_for_addr): Check TARGET_AVOID_LEA_FOR_ADDR
instead of TARGET_OPT_AGU.
(ix86_issue_rate): Likewise.
(ix86_adjust_cost): Likewise.
(ia32_multipass_dfa_lookahead): Likewise.
(swap_top_of_ready_list): Likewise.
(ix86_sched_reorder): Likewise.
* config/i386/i386.h (TARGET_INTEL): New.
(TARGET_AVOID_LEA_FOR_ADDR): Likewise.
(processor_type): Add PROCESSOR_INTEL.
* config/i386/x86-tune.def: Support m_INTEL. Duplicate
m_SILVERMONT. Add X86_TUNE_AVOID_LEA_FOR_ADDR.
From-SVN: r206717
Diffstat (limited to 'gcc/gimplify.c')
0 files changed, 0 insertions, 0 deletions