Properly handle AVX256 unaligned load and store

	PR target/59084
	* config/i386/i386.c (ix86_option_override_internal): Check
	X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL and
	X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL for
	MASK_AVX256_SPLIT_UNALIGNED_LOAD and
	MASK_AVX256_SPLIT_UNALIGNED_STORE.

	* config/i386/x86-tune.def (X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL):
	Clear m_COREI7_AVX and update comments.
	(X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL): Likewise.

From-SVN: r204700

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4a8b2e1..3cdf247 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+2013-11-12  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR target/59084
+       * config/i386/i386.c (ix86_option_override_internal): Check
+       X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL and
+       X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL for
+       MASK_AVX256_SPLIT_UNALIGNED_LOAD and
+       MASK_AVX256_SPLIT_UNALIGNED_STORE.
+
+       * config/i386/x86-tune.def (X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL):
+       Clear m_COREI7_AVX and update comments.
+       (X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL): Likewise.
+
 2013-11-12  Martin Jambor  <mjambor@suse.cz>
 
        PR rtl-optimization/10474

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 8b8cdfa..924cb66 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -3974,10 +3974,10 @@ ix86_option_override_internal (bool main_args_p,
       if (flag_expensive_optimizations
          && !(opts_set->x_target_flags & MASK_VZEROUPPER))
        opts->x_target_flags |= MASK_VZEROUPPER;
-      if (!ix86_tune_features[X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL]
+      if (!ix86_tune_features[X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL]
          && !(opts_set->x_target_flags & MASK_AVX256_SPLIT_UNALIGNED_LOAD))
        opts->x_target_flags |= MASK_AVX256_SPLIT_UNALIGNED_LOAD;
-      if (!ix86_tune_features[X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL]
+      if (!ix86_tune_features[X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL]
          && !(opts_set->x_target_flags & MASK_AVX256_SPLIT_UNALIGNED_STORE))
        opts->x_target_flags |= MASK_AVX256_SPLIT_UNALIGNED_STORE;
       /* Enable 128-bit AVX instruction generation

diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def
index 23879f9..54867d2 100644 (file)
--- a/gcc/config/i386/x86-tune.def
+++ b/gcc/config/i386/x86-tune.def
@@ -376,15 +376,15 @@ DEF_TUNE (X86_TUNE_USE_VECTOR_CONVERTS, "use_vector_converts", m_AMDFAM10)
 /* AVX instruction selection tuning (some of SSE flags affects AVX, too)     */
 /*****************************************************************************/
 
-/* X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL: if true, unaligned loads are
+/* X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL: if false, unaligned loads are
    split.  */
 DEF_TUNE (X86_TUNE_AVX256_UNALIGNED_LOAD_OPTIMAL, "256_unaligned_load_optimal", 
-          ~(m_COREI7 | m_GENERIC))
+          ~(m_COREI7 | m_COREI7_AVX | m_GENERIC))
 
-/* X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL: if true, unaligned loads are
+/* X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL: if false, unaligned stores are
    split.  */
-DEF_TUNE (X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL, "256_unaligned_load_optimal", 
-          ~(m_COREI7 | m_BDVER | m_GENERIC))
+DEF_TUNE (X86_TUNE_AVX256_UNALIGNED_STORE_OPTIMAL, "256_unaligned_store_optimal", 
+          ~(m_COREI7 | m_COREI7_AVX | m_BDVER | m_GENERIC))
 
 /* X86_TUNE_AVX128_OPTIMAL: Enable 128-bit AVX instruction generation for
    the auto-vectorizer.  */