diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index b8ca17e..ed35bcb 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -2044,8 +2044,8 @@ Normally, IRA tries to estimate the costs for saving a register in the prologue and restoring it in the epilogue. This discourages it from using call-saved registers. If a machine wants to ensure that IRA allocates registers in the order given by REG_ALLOC_ORDER even if some -call-saved registers appear earlier than call-used ones, this macro -should be defined. +call-saved registers appear earlier than call-used ones, then define this +macro as a C expression to nonzero. Default is 0. @end defmac @defmac IRA_HARD_REGNO_ADD_COST_MULTIPLIER (@var{regno}) |