diff options
| author | Steve Ellcey <sellcey@imgtec.com> | 2015-10-09 17:10:42 +0000 |
|---|---|---|
| committer | Steve Ellcey <sje@gcc.gnu.org> | 2015-10-09 17:10:42 +0000 |
| commit | d41c8b4c43d7050f05668f23ad4563ed6e9b41d0 (patch) | |
| tree | ec2b873ea269f855d61f77eb73a55bc41a5d0dc5 /gcc/doc/invoke.texi | |
| parent | b867c7ca88776d062e3e62c212fb0a59b6d688c9 (diff) | |
| download | gcc-d41c8b4c43d7050f05668f23ad4563ed6e9b41d0.zip gcc-d41c8b4c43d7050f05668f23ad4563ed6e9b41d0.tar.gz gcc-d41c8b4c43d7050f05668f23ad4563ed6e9b41d0.tar.bz2 | |
config.gcc (mips*-*-*): Add frame-header-opt.o to extra_objs.
2015-10-05 Steve Ellcey <sellcey@imgtec.com>
* config.gcc (mips*-*-*): Add frame-header-opt.o to extra_objs.
* frame-header-opt.c: New file.
* config/mips/mips-proto.h (mips_register_frame_header_opt):
Add prototype.
* config/mips/mips.c (mips_compute_frame_info): Check
optimize_call_stack flag.
(mips_option_override): Register new frame_header_opt pass.
(mips_frame_info, mips_int_mask, mips_shadow_set,
machine_function): Move these types to...
* config/mips/mips.h: here.
(machine_function): Add does_not_use_frame_header and
optimize_call_stack fields.
* config/mips/t-mips (frame-header-opt.o): Add new make rule.
* doc/invoke.texi (-mframe-header-opt, -mno-frame-header-opt):
Document new flags.
* config/mips/mips.opt (mframe-header-opt): Add new option.
From-SVN: r228666
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 1b44b44..f10d749 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -818,7 +818,8 @@ Objective-C and Objective-C++ Dialects}. -mbranch-cost=@var{num} -mbranch-likely -mno-branch-likely @gol -mfp-exceptions -mno-fp-exceptions @gol -mvr4130-align -mno-vr4130-align -msynci -mno-synci @gol --mrelax-pic-calls -mno-relax-pic-calls -mmcount-ra-address} +-mrelax-pic-calls -mno-relax-pic-calls -mmcount-ra-address @gol +-mframe-header-opt -mno-frame-header-opt} @emph{MMIX Options} @gccoptlist{-mlibfuncs -mno-libfuncs -mepsilon -mno-epsilon -mabi=gnu @gol @@ -18108,6 +18109,17 @@ if @var{ra-address} is nonnull. The default is @option{-mno-mcount-ra-address}. +@item -mframe-header-opt +@itemx -mno-frame-header-opt +@opindex mframe-header-opt +Enable (disable) frame header optimization in the o32 ABI. When using the +o32 ABI, calling functions will allocate 16 bytes on the stack for the called +function to write out register arguments. When enabled, this optimization +will suppress the allocation of the frame header if it can be determined that +it is unused. + +This optimization is off by default at all optimization levels. + @end table @node MMIX Options |