diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index ece9d9d5fc0..6b41efed8de 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -352,8 +352,9 @@ Objective-C and Objective-C++ Dialects}. -fschedule-insns -fschedule-insns2 -fsection-anchors -fsee @gol -fsignaling-nans -fsingle-precision-constant -fsplit-ivs-in-unroller @gol -fsplit-wide-types -fstack-protector -fstack-protector-all @gol --fstrict-aliasing -fstrict-overflow -fthread-jumps -ftracer -ftree-ccp @gol --ftree-ch -ftree-copy-prop -ftree-copyrename -ftree-dce @gol +-fstrict-aliasing -fstrict-overflow -fthread-jumps -ftracer @gol +-ftree-builtin-call-dce -ftree-ccp -ftree-ch -ftree-copy-prop @gol +-ftree-copyrename -ftree-dce @gol -ftree-dominator-opts -ftree-dse -ftree-fre -ftree-loop-im @gol -ftree-loop-distribution @gol -ftree-loop-ivcanon -ftree-loop-linear -ftree-loop-optimize @gol @@ -5154,6 +5155,7 @@ compilation time. -fipa-reference @gol -fmerge-constants -fsplit-wide-types @gol +-ftree-builtin-call-dce @gol -ftree-ccp @gol -ftree-ch @gol -ftree-copyrename @gol @@ -5874,6 +5876,13 @@ enabled by default at @option{-O2} and higher. Perform dead code elimination (DCE) on trees. This flag is enabled by default at @option{-O} and higher. +@item -ftree-builtin-call-dce +@opindex ftree-builtin-call-dce +Perform conditional dead code elimination (DCE) for calls to builtin functions +that may set @code{errno} but are otherwise side-effect free. This flag is +enabled by default at @option{-O2} and higher if @option{-Os} is not also +specified. + @item -ftree-dominator-opts @opindex ftree-dominator-opts Perform a variety of simple scalar cleanups (constant/copy @@ -11978,7 +11987,8 @@ The processor names are: @samp{sb1}, @samp{sr71000}, @samp{vr4100}, @samp{vr4111}, @samp{vr4120}, @samp{vr4130}, @samp{vr4300}, -@samp{vr5000}, @samp{vr5400} and @samp{vr5500}. +@samp{vr5000}, @samp{vr5400}, @samp{vr5500} +and @samp{xlr}. The special value @samp{from-abi} selects the most compatible architecture for the selected ABI (that is, @samp{mips1} for 32-bit ABIs and @samp{mips3} for 64-bit ABIs)@. |