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| author | Uros Bizjak <uros@gcc.gnu.org> | 2010-08-15 23:25:58 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2010-08-15 23:25:58 +0200 |
| commit | ef7e0035004ada8115de35ad9bc6266ad7d512d9 (patch) | |
| tree | f8d3e20313d31d50bbe71a325c97ac05c5d1f506 | |
| parent | 52bf62f96ba3f69fcd35251624d6767299331b4a (diff) | |
| download | gcc-ef7e0035004ada8115de35ad9bc6266ad7d512d9.zip gcc-ef7e0035004ada8115de35ad9bc6266ad7d512d9.tar.gz gcc-ef7e0035004ada8115de35ad9bc6266ad7d512d9.tar.bz2 | |
invoke.texi (-fomit-frame-pointer): Document that starting with GCC version 4.6...
* doc/invoke.texi (-fomit-frame-pointer): Document that starting
with GCC version 4.6, the default setting (when not optimizing
for size) for 32-bit Linux x86 and 32-bit Darwin x86 targets has
been changed to -fomit-frame-pointer.
From-SVN: r163269
| -rw-r--r-- | gcc/ChangeLog | 25 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
2 files changed, 21 insertions, 10 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 02fa0f8..1098e53 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,6 +1,13 @@ +2010-08-15 Uros Bizjak <ubizjak@gmail.com> + + * doc/invoke.texi (-fomit-frame-pointer): Document that starting + with GCC version 4.6, the default setting (when not optimizing + for size) for 32-bit Linux x86 and 32-bit Darwin x86 targets has + been changed to -fomit-frame-pointer. + 2010-08-15 Iain Sandoe <iains@gcc.gnu.org> - * config/darwin.h (REAL_LIBGCC_SPEC): Remove libgcc_s.10.5 stub for + * config/darwin.h (REAL_LIBGCC_SPEC): Remove libgcc_s.10.5 stub for Darwin10. Do not link libgcc.a for Darwin >= 9. 2010-08-15 Gerald Pfeifer <gerald@pfeifer.com> @@ -13,7 +20,7 @@ * tree-vect-data-refs.c (vect_setup_realignment): Support realignment in basic blocks. (vect_supportable_dr_alignment): Check alignment for basic blocks. - * tree-vect-slp.c (vect_build_slp_tree): Allow different codes for + * tree-vect-slp.c (vect_build_slp_tree): Allow different codes for data references. (vect_bb_vectorization_profitable_p): New function. (vect_slp_analyze_bb): Call vect_bb_vectorization_profitable_p() to @@ -32,7 +39,7 @@ enum reg_class to reg_class_t. Change type of saved_flags to reg_class_t. - * config/mips/mips.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): + * config/mips/mips.h (REGISTER_MOVE_COST, MEMORY_MOVE_COST): Remove macros. (mips_cost): Remove. (struct mips_rtx_cost_data): Moved to mips.c. @@ -70,8 +77,7 @@ 2010-08-13 Jie Zhang <jie@codesourcery.com> - * config/arm/arm.md (cstoredf4): Only valid when - !TARGET_VFP_SINGLE. + * config/arm/arm.md (cstoredf4): Only valid when !TARGET_VFP_SINGLE. 2010-08-12 Joseph Myers <joseph@codesourcery.com> @@ -99,8 +105,7 @@ 2010-08-12 Jakub Jelinek <jakub@redhat.com> - * builtins.c (fold_builtin_memory_op): Avoid -Wsign-compare - warning. + * builtins.c (fold_builtin_memory_op): Avoid -Wsign-compare warning. PR middle-end/45262 * fold-const.c (make_range) <case NEGATE_EXPR>: Punt if @@ -903,9 +908,9 @@ (walk_mems_1): Moved from alias.c. (insns_may_alias_p): New function, originally insn_alias_sets_conflict_p in alias.c. - (add_inter_loop_mem_dep): Use insns_may_alias_p now. - * cse.c (cse_insn): New argument in calling nonoverlapping_memrefs_p. - * alias.c (walk_mems_2): Moved to ddg.c. + (add_inter_loop_mem_dep): Use insns_may_alias_p now. + * cse.c (cse_insn): New argument in calling nonoverlapping_memrefs_p. + * alias.c (walk_mems_2): Moved to ddg.c. (walk_mems_1): Ditto. (insn_alias_sets_conflict_p): Renamed to insns_may_alias_p and moved to ddg.c. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 3df16f8..6099b30 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -5993,6 +5993,12 @@ machine-description macro @code{FRAME_POINTER_REQUIRED} controls whether a target machine supports this flag. @xref{Registers,,Register Usage, gccint, GNU Compiler Collection (GCC) Internals}. +Starting with GCC version 4.6, the default setting (when not optimizing for +size) for 32-bit Linux x86 and 32-bit Darwin x86 targets has been changed to +@option{-fomit-frame-pointer}. The default can be reverted to +@option{-fno-omit-frame-pointer} by configuring GCC with the +@option{--enable-frame-pointer} configure option. + Enabled at levels @option{-O}, @option{-O2}, @option{-O3}, @option{-Os}. @item -foptimize-sibling-calls |