diff options
Diffstat (limited to 'gcc-4.4.3/gcc/config/arm/thumb2.md')
| -rw-r--r-- | gcc-4.4.3/gcc/config/arm/thumb2.md | 123 |
1 files changed, 52 insertions, 71 deletions
diff --git a/gcc-4.4.3/gcc/config/arm/thumb2.md b/gcc-4.4.3/gcc/config/arm/thumb2.md index 085ce828a..2243172e6 100644 --- a/gcc-4.4.3/gcc/config/arm/thumb2.md +++ b/gcc-4.4.3/gcc/config/arm/thumb2.md @@ -1268,76 +1268,57 @@ (set_attr "length" "2")] ) -(define_insn "*thumb2_tlobits_cbranch" - [(set (pc) - (if_then_else - (match_operator 0 "equality_operator" - [(zero_extract:SI (match_operand:SI 1 "s_register_operand" "l,?h") - (match_operand:SI 2 "const_int_operand" "i,i") - (const_int 0)) - (const_int 0)]) - (label_ref (match_operand 3 "" "")) - (pc))) - (clobber (match_scratch:SI 4 "=l,X"))] - "TARGET_THUMB2" - "* - { - if (which_alternative == 0) - { - rtx op[3]; - op[0] = operands[4]; - op[1] = operands[1]; - op[2] = GEN_INT (32 - INTVAL (operands[2])); - - output_asm_insn (\"lsls\\t%0, %1, %2\", op); - switch (get_attr_length (insn)) - { - case 4: return \"b%d0\\t%l3\"; - case 6: return \"b%D0\\t.LCB%=\;b\\t%l3\\t%@long jump\\n.LCB%=:\"; - default: return \"b%D0\\t.LCB%=\;bl\\t%l3\\t%@far jump\\n.LCB%=:\"; - } - } - else - { - rtx op[2]; - op[0] = operands[1]; - op[1] = GEN_INT ((1 << INTVAL (operands[2])) - 1); +(define_peephole2 + [(set (match_operand:CC_NOOV 0 "cc_register" "") + (compare:CC_NOOV (zero_extract:SI + (match_operand:SI 1 "low_register_operand" "") + (const_int 1) + (match_operand:SI 2 "const_int_operand" "")) + (const_int 0))) + (match_scratch:SI 3 "l") + (set (pc) + (if_then_else (match_operator:CC_NOOV 4 "equality_operator" + [(match_dup 0) (const_int 0)]) + (match_operand 5 "" "") + (match_operand 6 "" "")))] + "TARGET_THUMB2 + && (INTVAL (operands[2]) >= 0 && INTVAL (operands[2]) < 32)" + [(parallel [(set (match_dup 0) + (compare:CC_NOOV (ashift:SI (match_dup 1) (match_dup 2)) + (const_int 0))) + (clobber (match_dup 3))]) + (set (pc) + (if_then_else (match_op_dup 4 [(match_dup 0) (const_int 0)]) + (match_dup 5) (match_dup 6)))] + " + operands[2] = GEN_INT (31 - INTVAL (operands[2])); + operands[4] = gen_rtx_fmt_ee (GET_CODE (operands[4]) == NE ? LT : GE, + VOIDmode, operands[0], const0_rtx); + ") - output_asm_insn (\"tst\\t%0, %1\", op); - switch (get_attr_length (insn)) - { - case 6: return \"b%d0\\t%l3\"; - case 8: return \"b%D0\\t.LCB%=\;b\\t%l3\\t%@long jump\\n.LCB%=:\"; - default: return \"b%D0\\t.LCB%=\;bl\\t%l3\\t%@far jump\\n.LCB%=:\"; - } - } - }" - [(set (attr "far_jump") - (if_then_else - (and (ge (minus (match_dup 3) (pc)) (const_int -2040)) - (le (minus (match_dup 3) (pc)) (const_int 2048))) - (const_string "no") - (const_string "yes"))) - (set (attr "length") - (if_then_else - (eq (symbol_ref ("which_alternative")) +(define_peephole2 + [(set (match_operand:CC_NOOV 0 "cc_register" "") + (compare:CC_NOOV (zero_extract:SI + (match_operand:SI 1 "low_register_operand" "") + (match_operand:SI 2 "const_int_operand" "") (const_int 0)) - (if_then_else - (and (ge (minus (match_dup 3) (pc)) (const_int -250)) - (le (minus (match_dup 3) (pc)) (const_int 256))) - (const_int 4) - (if_then_else - (and (ge (minus (match_dup 3) (pc)) (const_int -2040)) - (le (minus (match_dup 3) (pc)) (const_int 2048))) - (const_int 6) - (const_int 8))) - (if_then_else - (and (ge (minus (match_dup 3) (pc)) (const_int -250)) - (le (minus (match_dup 3) (pc)) (const_int 256))) - (const_int 6) - (if_then_else - (and (ge (minus (match_dup 3) (pc)) (const_int -2040)) - (le (minus (match_dup 3) (pc)) (const_int 2048))) - (const_int 8) - (const_int 10)))))] -) + (const_int 0))) + (match_scratch:SI 3 "l") + (set (pc) + (if_then_else (match_operator:CC_NOOV 4 "equality_operator" + [(match_dup 0) (const_int 0)]) + (match_operand 5 "" "") + (match_operand 6 "" "")))] + "TARGET_THUMB2 + && (INTVAL (operands[2]) > 0 && INTVAL (operands[2]) < 32)" + [(parallel [(set (match_dup 0) + (compare:CC_NOOV (ashift:SI (match_dup 1) (match_dup 2)) + (const_int 0))) + (clobber (match_dup 3))]) + (set (pc) + (if_then_else (match_op_dup 4 [(match_dup 0) (const_int 0)]) + (match_dup 5) (match_dup 6)))] + " + operands[2] = GEN_INT (32 - INTVAL (operands[2])); + ") + |