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| author | Jeff Law <law@redhat.com> | 2015-05-04 11:21:56 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2015-05-04 11:21:56 -0600 |
| commit | 383be4a8c1518edfc2b74d31027e21d43c101ff0 (patch) | |
| tree | 5fec3524fe94c084995893d0a77504b8dfcb5c01 /gcc/generic-match-head.c | |
| parent | e2bbbfbcbd27cc6ef3f68d0d619f54d29ca0aa05 (diff) | |
| download | gcc-383be4a8c1518edfc2b74d31027e21d43c101ff0.zip gcc-383be4a8c1518edfc2b74d31027e21d43c101ff0.tar.gz gcc-383be4a8c1518edfc2b74d31027e21d43c101ff0.tar.bz2 | |
match.pd (bit_and (plus/minus (convert @0) (convert @1) mask): New simplifier to narrow arithmetic.
* match.pd (bit_and (plus/minus (convert @0) (convert @1) mask): New
simplifier to narrow arithmetic.
* generic-match-head.c: (types_match, single_use): New functions.
* gimple-match-head.c: (types_match, single_use): New functions.
* gcc.dg/tree-ssa/shorten-1.c: New test.
From-SVN: r222771
Diffstat (limited to 'gcc/generic-match-head.c')
| -rw-r--r-- | gcc/generic-match-head.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/generic-match-head.c b/gcc/generic-match-head.c index daa56aa..303b237 100644 --- a/gcc/generic-match-head.c +++ b/gcc/generic-match-head.c @@ -70,4 +70,20 @@ along with GCC; see the file COPYING3. If not see #include "dumpfile.h" #include "generic-match.h" +/* Routine to determine if the types T1 and T2 are effectively + the same for GENERIC. */ +inline bool +types_match (tree t1, tree t2) +{ + return TYPE_MAIN_VARIANT (t1) == TYPE_MAIN_VARIANT (t2); +} + +/* Return if T has a single use. For GENERIC, we assume this is + always true. */ + +inline bool +single_use (tree t) +{ + return true; +} |