diff options
Diffstat (limited to 'gcc/target.def')
| -rw-r--r-- | gcc/target.def | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/gcc/target.def b/gcc/target.def index 4aebcfeddd2..356f7c1c9a4 100644 --- a/gcc/target.def +++ b/gcc/target.def @@ -2542,24 +2542,31 @@ modes and they have different conditional execution capability, such as ARM.", DEFHOOK (gen_ccmp_first, - "This function emits a comparison insn for the first of a sequence of\n\ - conditional comparisions. It returns a comparison expression appropriate\n\ - for passing to @code{gen_ccmp_next} or @code{cbranch_optab}. @var{code} is\n\ + "This function prepares to emit a comparison insn for the first compare in a\n\ + sequence of conditional comparisions. It returns a appropriate @code{CC}\n\ + for passing to @code{gen_ccmp_next} or @code{cbranch_optab}. The insns to\n\ + prepare the compare are saved in @var{prep_seq} and the compare insns are\n\ + saved in @var{gen_seq}. They will be emitted when all the compares in the\n\ + the conditional comparision are generated without error. @var{code} is\n\ the @code{rtx_code} of the compare for @var{op0} and @var{op1}.", - rtx, (int code, rtx op0, rtx op1), + rtx, (rtx *prep_seq, rtx *gen_seq, int code, tree op0, tree op1), NULL) DEFHOOK (gen_ccmp_next, - "This function emits a conditional comparison within a sequence of\n\ - conditional comparisons. The @var{prev} expression is the result of a\n\ - prior call to @code{gen_ccmp_first} or @code{gen_ccmp_next}. It may return\n\ - @code{NULL} if the combination of @var{prev} and this comparison is\n\ + "This function prepare to emit a conditional comparison within a sequence of\n\ + conditional comparisons. It returns a appropriate @code{CC} for passing to\n\ + @code{gen_ccmp_next} or @code{cbranch_optab}. The insns to prepare the\n\ + compare are saved in @var{prep_seq} and the compare insns are saved in\n\ + @var{gen_seq}. They will be emitted when all the compares in the conditional\n\ + comparision are generated without error. The @var{prev} expression is the\n\ + result of a prior call to @code{gen_ccmp_first} or @code{gen_ccmp_next}. It\n\ + may return @code{NULL} if the combination of @var{prev} and this comparison is\n\ not supported, otherwise the result must be appropriate for passing to\n\ @code{gen_ccmp_next} or @code{cbranch_optab}. @var{code} is the\n\ @code{rtx_code} of the compare for @var{op0} and @var{op1}. @var{bit_code}\n\ is @code{AND} or @code{IOR}, which is the op on the two compares.", - rtx, (rtx prev, int cmp_code, rtx op0, rtx op1, int bit_code), + rtx, (rtx *prep_seq, rtx *gen_seq, rtx prev, int cmp_code, tree op0, tree op1, int bit_code), NULL) /* Return a new value for loop unroll size. */ |