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Diffstat (limited to 'gcc/config/xtensa/xtensa.md')
| -rw-r--r-- | gcc/config/xtensa/xtensa.md | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md index 462a724..cfb6a54 100644 --- a/gcc/config/xtensa/xtensa.md +++ b/gcc/config/xtensa/xtensa.md @@ -469,6 +469,27 @@ }) +;; Byte swap. + +(define_insn "bswapsi2" + [(set (match_operand:SI 0 "register_operand" "=&a") + (bswap:SI (match_operand:SI 1 "register_operand" "r")))] + "!optimize_size" + "ssai\t8\;srli\t%0, %1, 16\;src\t%0, %0, %1\;src\t%0, %0, %0\;src\t%0, %1, %0" + [(set_attr "type" "arith") + (set_attr "mode" "SI") + (set_attr "length" "15")]) + +(define_insn "bswapdi2" + [(set (match_operand:DI 0 "register_operand" "=&a") + (bswap:DI (match_operand:DI 1 "register_operand" "r")))] + "!optimize_size" + "ssai\t8\;srli\t%0, %D1, 16\;src\t%0, %0, %D1\;src\t%0, %0, %0\;src\t%0, %D1, %0\;srli\t%D0, %1, 16\;src\t%D0, %D0, %1\;src\t%D0, %D0, %D0\;src\t%D0, %1, %D0" + [(set_attr "type" "arith") + (set_attr "mode" "DI") + (set_attr "length" "27")]) + + ;; Negation and one's complement. (define_insn "negsi2" |