diff options
Diffstat (limited to 'gcc/explow.c')
| -rw-r--r-- | gcc/explow.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/gcc/explow.c b/gcc/explow.c index a72a03be64c..7a770ee897c 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -732,12 +732,23 @@ force_reg (mode, x) if (GET_CODE (x) == REG) return x; - temp = gen_reg_rtx (mode); - - if (! general_operand (x, mode)) - x = force_operand (x, NULL_RTX); - - insn = emit_move_insn (temp, x); + if (general_operand (x, mode)) + { + temp = gen_reg_rtx (mode); + insn = emit_move_insn (temp, x); + } + else + { + temp = force_operand (x, NULL_RTX); + if (GET_CODE (temp) == REG) + insn = get_last_insn (); + else + { + rtx temp2 = gen_reg_rtx (mode); + insn = emit_move_insn (temp2, temp); + temp = temp2; + } + } /* Let optimizers know that TEMP's value never changes and that X can be substituted for it. Don't get confused @@ -746,6 +757,7 @@ force_reg (mode, x) && (set = single_set (insn)) != 0 && SET_DEST (set) == temp) set_unique_reg_note (insn, REG_EQUAL, x); + return temp; } |