diff options
Diffstat (limited to 'gcc/config/sh')
| -rw-r--r-- | gcc/config/sh/sh.md | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md index c4f6257500e..20653b13105 100644 --- a/gcc/config/sh/sh.md +++ b/gcc/config/sh/sh.md @@ -7323,6 +7323,52 @@ label: ? gen_rtx_GE (VOIDmode, operands[4], const0_rtx) : gen_rtx_GT (VOIDmode, const0_rtx, operands[4])); }") + +; operand 0 is the loop count pseudo register +; operand 1 is the number of loop iterations or 0 if it is unknown +; operand 2 is the maximum number of loop iterations +; operand 3 is the number of levels of enclosed loops +; operand 4 is the label to jump to at the top of the loop + +(define_expand "doloop_end" + [(parallel [(set (pc) (if_then_else + (ne:SI (match_operand:SI 0 "" "") + (const_int 1)) + (label_ref (match_operand 4 "" "")) + (pc))) + (set (match_dup 0) + (plus:SI (match_dup 0) (const_int -1))) + (clobber (reg:SI T_REG))])] + "TARGET_SH2" + " +{ + if (GET_MODE (operands[0]) != SImode) + FAIL; +} +") + +(define_insn_and_split "doloop_end_split" + [(set (pc) + (if_then_else (ne:SI (match_operand:SI 0 "arith_reg_dest" "+r") + (const_int 1)) + (label_ref (match_operand 1 "" "")) + (pc))) + (set (match_dup 0) + (plus (match_dup 0) (const_int -1))) + (clobber (reg:SI T_REG))] + "TARGET_SH2" + "#" + "" + [(parallel [(set (reg:SI T_REG) + (eq:SI (match_operand:SI 0 "arith_reg_dest" "+r") + (const_int 1))) + (set (match_dup 0) (plus:SI (match_dup 0) (const_int -1)))]) + (set (pc) (if_then_else (eq (reg:SI T_REG) (const_int 0)) + (label_ref (match_operand 1 "" "")) + (pc)))] +"" + [(set_attr "type" "cbranch")]) + ;; ------------------------------------------------------------------------ ;; Jump and linkage insns |