diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index a16cd92..3dc51c0 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -6357,7 +6357,7 @@ Define this macro if a non-short-circuit operation produced by @code{BRANCH_COST} is greater than or equal to the value 2. @end defmac -@deftypefn {Target Hook} bool TARGET_RTX_COSTS (rtx @var{x}, int @var{code}, int @var{outer_code}, int @var{opno}, int *@var{total}, bool @var{speed}) +@deftypefn {Target Hook} bool TARGET_RTX_COSTS (rtx @var{x}, machine_mode @var{mode}, int @var{outer_code}, int @var{opno}, int *@var{total}, bool @var{speed}) This target hook describes the relative costs of RTL expressions. The cost may depend on the precise form of the expression, which is @@ -6368,8 +6368,8 @@ that @samp{GET_CODE (@var{y}) == @var{outer_code}} and such that either (a) @samp{XEXP (@var{y}, @var{opno}) == @var{x}} or (b) @samp{XVEC (@var{y}, @var{opno})} contains @var{x}. -@var{code} is @var{x}'s expression code---redundant, since it can be -obtained with @code{GET_CODE (@var{x})}. +@var{mode} is @var{x}'s machine mode, or for cases like @code{const_int} that +do not have a mode, the mode in which @var{x} is used. In implementing this hook, you can use the construct @code{COSTS_N_INSNS (@var{n})} to specify a cost equal to @var{n} fast |