diff options
Diffstat (limited to 'meta-oe/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch')
| -rw-r--r-- | meta-oe/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/meta-oe/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch b/meta-oe/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch new file mode 100644 index 0000000000..9b56560942 --- /dev/null +++ b/meta-oe/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch @@ -0,0 +1,95 @@ + gcc/ + * config/arm/arm.c (arm_override_options): Override alignments if + tuning for Cortex-A8. + (create_fix_barrier, arm_reorg): If aligning to jumps or loops, + make labels have a size. + * config/arm/arm.md (VUNSPEC_ALIGN16, VUNSPEC_ALIGN32): New constants. + (align_16, align_32): New patterns. + +2010-07-26 Julian Brown <julian@codesourcery.com> + + Merge from Sourcery G++ 4.4: + + Mark Shinwell <shinwell@codesourcery.com> + + +=== modified file 'gcc/config/arm/arm.c' +--- old/gcc/config/arm/arm.c 2010-08-10 14:03:02 +0000 ++++ new/gcc/config/arm/arm.c 2010-08-12 11:33:54 +0000 +@@ -1449,6 +1449,16 @@ + chosen. */ + gcc_assert (arm_tune != arm_none); + ++ if (arm_tune == cortexa8 && optimize >= 3) ++ { ++ /* These alignments were experimentally determined to improve SPECint ++ performance on SPECCPU 2000. */ ++ if (align_functions <= 0) ++ align_functions = 16; ++ if (align_jumps <= 0) ++ align_jumps = 16; ++ } ++ + tune_flags = all_cores[(int)arm_tune].flags; + + if (target_fp16_format_name) +@@ -11263,7 +11273,10 @@ + gcc_assert (GET_CODE (from) != BARRIER); + + /* Count the length of this insn. */ +- count += get_attr_length (from); ++ if (LABEL_P (from) && (align_jumps > 0 || align_loops > 0)) ++ count += MAX (align_jumps, align_loops); ++ else ++ count += get_attr_length (from); + + /* If there is a jump table, add its length. */ + tmp = is_jump_table (from); +@@ -11603,6 +11616,8 @@ + insn = table; + } + } ++ else if (LABEL_P (insn) && (align_jumps > 0 || align_loops > 0)) ++ address += MAX (align_jumps, align_loops); + } + + fix = minipool_fix_head; + +=== modified file 'gcc/config/arm/arm.md' +--- old/gcc/config/arm/arm.md 2010-08-12 11:29:02 +0000 ++++ new/gcc/config/arm/arm.md 2010-08-12 11:33:54 +0000 +@@ -135,6 +135,8 @@ + (VUNSPEC_WCMP_EQ 12) ; Used by the iWMMXt WCMPEQ instructions + (VUNSPEC_WCMP_GTU 13) ; Used by the iWMMXt WCMPGTU instructions + (VUNSPEC_WCMP_GT 14) ; Used by the iwMMXT WCMPGT instructions ++ (VUNSPEC_ALIGN16 15) ; Used to force 16-byte alignment. ++ (VUNSPEC_ALIGN32 16) ; Used to force 32-byte alignment. + (VUNSPEC_EH_RETURN 20); Use to override the return address for exception + ; handling. + ] +@@ -11042,6 +11044,24 @@ + " + ) + ++(define_insn "align_16" ++ [(unspec_volatile [(const_int 0)] VUNSPEC_ALIGN16)] ++ "TARGET_EITHER" ++ "* ++ assemble_align (128); ++ return \"\"; ++ " ++) ++ ++(define_insn "align_32" ++ [(unspec_volatile [(const_int 0)] VUNSPEC_ALIGN32)] ++ "TARGET_EITHER" ++ "* ++ assemble_align (256); ++ return \"\"; ++ " ++) ++ + (define_insn "consttable_end" + [(unspec_volatile [(const_int 0)] VUNSPEC_POOL_END)] + "TARGET_EITHER" + |