diff options
Diffstat (limited to 'gcc/invoke.texi')
| -rw-r--r-- | gcc/invoke.texi | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/invoke.texi b/gcc/invoke.texi index 7a643d60aa1..2c7ae54b993 100644 --- a/gcc/invoke.texi +++ b/gcc/invoke.texi @@ -147,7 +147,7 @@ in the following sections. -ffunction-sections -finline-functions -fkeep-inline-functions -fno-default-inline -fno-defer-pop -fno-function-cse --fno-inline -fno-peephole -fomit-frame-pointer +-fno-inline -fno-peephole -fomit-frame-pointer -fregmove -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fstrength-reduce -fthread-jumps -funroll-all-loops -funroll-loops @@ -2195,6 +2195,12 @@ used in one place: in @file{reorg.c}, instead of guessing which path a branch is mostly to take, the @samp{REG_BR_PROB} values are used to exactly determine which path is taken more often. @end ifset + +@item -fregmove +Some machines only support 2 operands per instruction. On such +machines, GNU CC might have to do extra copies. The @samp{-fregmove} +option overrides the default for the machine to do the copy before +register allocation. @end table @node Preprocessor Options |