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| author | Jim Wilson <wilson@gcc.gnu.org> | 1993-01-19 19:48:54 -0800 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1993-01-19 19:48:54 -0800 |
| commit | b47de04b0832bb278ca84fcf73c9d32cb9ff580d (patch) | |
| tree | 51ca560b758d85d6c6c9453e7bcf4a0d4989af5a /gcc | |
| parent | 4ec74aebd46c19f776bf3851a05ba8d044906997 (diff) | |
| download | gcc-b47de04b0832bb278ca84fcf73c9d32cb9ff580d.zip gcc-b47de04b0832bb278ca84fcf73c9d32cb9ff580d.tar.gz gcc-b47de04b0832bb278ca84fcf73c9d32cb9ff580d.tar.bz2 | |
(cmplpower2_operand): New function.
From-SVN: r3293
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i960/i960.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/gcc/config/i960/i960.c b/gcc/config/i960/i960.c index f20de25..4163ca4 100644 --- a/gcc/config/i960/i960.c +++ b/gcc/config/i960/i960.c @@ -296,12 +296,26 @@ power2_operand (op,mode) rtx op; enum machine_mode mode; { - if (GET_CODE(op) != CONST_INT) + if (GET_CODE (op) != CONST_INT) return 0; return exact_log2 (INTVAL (op)) >= 0; } +/* Return true if OP is an integer constant which is the complement of a + power of 2. */ + +int +cmplpower2_operand (op, mode) + rtx op; + enum machine_mode mode; +{ + if (GET_CODE (op) != CONST_INT) + return 0; + + return exact_log2 (~ INTVAL (op)) >= 0; +} + /* If VAL has only one bit set, return the index of that bit. Otherwise return -1. */ |