diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index df39e16..057ae7d 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -334,7 +334,8 @@ Objective-C and Objective-C++ Dialects}. -falign-labels[=@var{n}] -falign-loops[=@var{n}] -fassociative-math @gol -fauto-inc-dec -fbranch-probabilities -fbranch-target-load-optimize @gol -fbranch-target-load-optimize2 -fbtr-bb-exclusive -fcaller-saves @gol --fcheck-data-deps -fconserve-stack -fcprop-registers -fcrossjumping @gol +-fcheck-data-deps -fcombine-stack-adjustments -fconserve-stack @gol +-fcprop-registers -fcrossjumping @gol -fcse-follow-jumps -fcse-skip-blocks -fcx-fortran-rules @gol -fcx-limited-range @gol -fdata-sections -fdce -fdce @gol @@ -6618,6 +6619,13 @@ those which have no call-preserved registers to use instead. Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}. +@item -fcombine-stack-adjustments +@opindex fcombine-stack-adjustments +Tracks stack adjustments (pushes and pops) and stack memory references +and then tries to find ways to combine them. + +Enabled by default at @option{-O1} and higher. + @item -fconserve-stack @opindex fconserve-stack Attempt to minimize stack usage. The compiler will attempt to use less |