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Turn on unaligned SSE load/store for Core i7. 

2010-12-06  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (m_COREI7): New.
	(initial_ix86_tune_features): Turn on
	X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL and
	X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL for Core i7.

From-SVN: r167496
This commit is contained in:
H.J. Lu 2010-12-06 14:42:56 +00:00 committed by H.J. Lu
parent 35758e5b01
commit 1a23b86107
2 changed files with 10 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2010-12-06 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (m_COREI7): New.
(initial_ix86_tune_features): Turn on
X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL and
X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL for Core i7.
2010-12-06 H.J. Lu <hongjiu.lu@intel.com>
* config.gcc: Allow corei7-avx for --with-arch/--with-cpu.

5
gcc/config/i386/i386.c
View File

@ -1644,6 +1644,7 @@ const struct processor_costs *ix86_cost = &pentium_cost;
#define m_CORE2_64 (1<<PROCESSOR_CORE2_64)
#define m_COREI7_32 (1<<PROCESSOR_COREI7_32)
#define m_COREI7_64 (1<<PROCESSOR_COREI7_64)
#define m_COREI7 (m_COREI7_32 | m_COREI7_64)
#define m_CORE2I7_32 (m_CORE2_32 | m_COREI7_32)
#define m_CORE2I7_64 (m_CORE2_64 | m_COREI7_64)
#define m_CORE2I7 (m_CORE2I7_32 | m_CORE2I7_64)
@ -1810,10 +1811,10 @@ static unsigned int initial_ix86_tune_features[X86_TUNE_LAST] = {
| m_AMDFAM10 | m_BDVER1,
/* X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL */
m_AMDFAM10 | m_BDVER1,
m_AMDFAM10 | m_BDVER1 | m_COREI7,
/* X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL */
m_BDVER1,
m_BDVER1 | m_COREI7,
/* X86_TUNE_SSE_PACKED_SINGLE_INSN_OPTIMAL */
m_BDVER1,