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Diffstat (limited to 'gcc/config/xtensa/predicates.md')
| -rw-r--r-- | gcc/config/xtensa/predicates.md | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/config/xtensa/predicates.md b/gcc/config/xtensa/predicates.md index bcc83ad..d63a6cf 100644 --- a/gcc/config/xtensa/predicates.md +++ b/gcc/config/xtensa/predicates.md @@ -52,6 +52,16 @@ (match_test "xtensa_mask_immediate (INTVAL (op))")) (match_operand 0 "register_operand"))) +(define_predicate "shifted_mask_operand" + (match_code "const_int") +{ + HOST_WIDE_INT mask = INTVAL (op); + int shift = ctz_hwi (mask); + + return IN_RANGE (shift, 1, 31) + && xtensa_mask_immediate ((uint32_t)mask >> shift); +}) + (define_predicate "extui_fldsz_operand" (and (match_code "const_int") (match_test "IN_RANGE (INTVAL (op), 1, 16)"))) |