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| author | David Edelsohn <edelsohn@gnu.org> | 2003-04-22 15:01:18 +0000 |
|---|---|---|
| committer | David Edelsohn <dje@gcc.gnu.org> | 2003-04-22 11:01:18 -0400 |
| commit | 85e50b6ba8ca2221593838878ab8d804b37faf44 (patch) | |
| tree | ee72cba827c7a86639b3c34912d8d1ba9c6e5d2a /gcc/doc | |
| parent | 256c249cf916c692809166f946d5fb7926c3fa40 (diff) | |
| download | gcc-85e50b6ba8ca2221593838878ab8d804b37faf44.zip gcc-85e50b6ba8ca2221593838878ab8d804b37faf44.tar.gz gcc-85e50b6ba8ca2221593838878ab8d804b37faf44.tar.bz2 | |
fold-const.c (fold_range_test): Use RANGE_TEST_NON_SHORT_CIRCUIT macro defaulting to original BRANCH_COST heuristic.
* fold-const.c (fold_range_test): Use RANGE_TEST_NON_SHORT_CIRCUIT
macro defaulting to original BRANCH_COST heuristic.
* doc/tm.texi (RANGE_TEST_NON_SHORT_CIRCUIT): Document.
* config/rs6000/rs6000.h (RANGE_TEST_NON_SHORT_CIRCUIT): Define.
From-SVN: r65942
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 092e400..88ad237 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -5529,6 +5529,12 @@ function address than to call an address kept in a register. Define this macro if it is as good or better for a function to call itself with an explicit address than to call an address kept in a register. + +@findex RANGE_TEST_NON_SHORT_CIRCUIT +@item RANGE_TEST_NON_SHORT_CIRCUIT +Define this macro if a non-short-circuit operation produced by +@samp{fold_range_test ()} is optimal. This macro defaults to true if +@code{BRANCH_COST} is greater than or equal to the value 2. @end table @deftypefn {Target Hook} bool TARGET_RTX_COSTS (rtx @var{x}, int @var{code}, int @var{outer_code}, int *@var{total}) |