diff options
Diffstat (limited to 'gcc/config/m68k/m68k.md')
-rw-r--r-- | gcc/config/m68k/m68k.md | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/gcc/config/m68k/m68k.md b/gcc/config/m68k/m68k.md index 29624a4..782c7cc 100644 --- a/gcc/config/m68k/m68k.md +++ b/gcc/config/m68k/m68k.md @@ -1703,32 +1703,35 @@ }) (define_insn "extendsidi2" - [(set (match_operand:DI 0 "register_operand" "=d") - (sign_extend:DI (match_operand:SI 1 "nonimmediate_src_operand" "rm")))] + [(set (match_operand:DI 0 "nonimmediate_operand" "=d,o,o,<") + (sign_extend:DI + (match_operand:SI 1 "nonimmediate_src_operand" "rm,rm,r<Q>,rm"))) + (clobber (match_scratch:SI 2 "=X,d,d,d"))] "" { CC_STATUS_INIT; - if (TARGET_68020 || TARGET_COLDFIRE) - return "move%.l %1,%R0\;smi %0\;extb%.l %0"; - else - return "move%.l %1,%R0\;smi %0\;ext%.w %0\;ext%.l %0"; -}) -(define_insn "*extendsidi2_mem" - [(set (match_operand:DI 0 "memory_operand" "=o,<") - (sign_extend:DI (match_operand:SI 1 "nonimmediate_src_operand" "rm,rm"))) - (clobber (match_scratch:SI 2 "=d,d"))] - "" -{ - CC_STATUS_INIT; + if (which_alternative == 0) + /* Handle alternative 0. */ + { + if (TARGET_68020 || TARGET_COLDFIRE) + return "move%.l %1,%R0\;smi %0\;extb%.l %0"; + else + return "move%.l %1,%R0\;smi %0\;ext%.w %0\;ext%.l %0"; + } + + /* Handle alternatives 1, 2 and 3. We don't need to adjust address by 4 + in alternative 3 because autodecrement will do that for us. */ operands[3] = adjust_address (operands[0], SImode, - which_alternative == 0 ? 4 : 0); + which_alternative == 3 ? 0 : 4); operands[0] = adjust_address (operands[0], SImode, 0); + if (TARGET_68020 || TARGET_COLDFIRE) return "move%.l %1,%3\;smi %2\;extb%.l %2\;move%.l %2,%0"; else return "move%.l %1,%3\;smi %2\;ext%.w %2\;ext%.l %2\;move%.l %2,%0"; -}) +} + [(set_attr "ok_for_coldfire" "yes,no,yes,yes")]) ;; Special case when one can avoid register clobbering, copy and test ;; Maybe there is a way to make that the general case, by forcing the |