diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 46 |
1 files changed, 25 insertions, 21 deletions
@@ -2791,7 +2791,6 @@ emit_move_insn_1 (x, y) enum machine_mode mode = GET_MODE (x); enum machine_mode submode; enum mode_class class = GET_MODE_CLASS (mode); - unsigned int i; if ((unsigned int) mode >= (unsigned int) MAX_MACHINE_MODE) abort (); @@ -2817,10 +2816,11 @@ emit_move_insn_1 (x, y) /* In case we output to the stack, but the size is smaller machine can push exactly, we need to use move instructions. */ if (stack - && PUSH_ROUNDING (GET_MODE_SIZE (submode)) != GET_MODE_SIZE (submode)) + && (PUSH_ROUNDING (GET_MODE_SIZE (submode)) + != GET_MODE_SIZE (submode))) { rtx temp; - int offset1, offset2; + HOST_WIDE_INT offset1, offset2; /* Do not use anti_adjust_stack, since we don't want to update stack_pointer_delta. */ @@ -2832,12 +2832,13 @@ emit_move_insn_1 (x, y) #endif stack_pointer_rtx, GEN_INT - (PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)))), - stack_pointer_rtx, - 0, - OPTAB_LIB_WIDEN); + (PUSH_ROUNDING + (GET_MODE_SIZE (GET_MODE (x)))), + stack_pointer_rtx, 0, OPTAB_LIB_WIDEN); + if (temp != stack_pointer_rtx) emit_move_insn (stack_pointer_rtx, temp); + #ifdef STACK_GROWS_DOWNWARD offset1 = 0; offset2 = GET_MODE_SIZE (submode); @@ -2846,6 +2847,7 @@ emit_move_insn_1 (x, y) offset2 = (-PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x))) + GET_MODE_SIZE (submode)); #endif + emit_move_insn (change_address (x, submode, gen_rtx_PLUS (Pmode, stack_pointer_rtx, @@ -2901,8 +2903,10 @@ emit_move_insn_1 (x, y) if (GET_MODE_BITSIZE (mode) < 2 * BITS_PER_WORD && (reload_in_progress | reload_completed) == 0) { - int packed_dest_p = (REG_P (x) && REGNO (x) < FIRST_PSEUDO_REGISTER); - int packed_src_p = (REG_P (y) && REGNO (y) < FIRST_PSEUDO_REGISTER); + int packed_dest_p + = (REG_P (x) && REGNO (x) < FIRST_PSEUDO_REGISTER); + int packed_src_p + = (REG_P (y) && REGNO (y) < FIRST_PSEUDO_REGISTER); if (packed_dest_p || packed_src_p) { @@ -2924,12 +2928,14 @@ emit_move_insn_1 (x, y) if (packed_dest_p) { rtx sreg = gen_rtx_SUBREG (reg_mode, x, 0); + emit_move_insn_1 (cmem, y); return emit_move_insn_1 (sreg, mem); } else { rtx sreg = gen_rtx_SUBREG (reg_mode, y, 0); + emit_move_insn_1 (mem, sreg); return emit_move_insn_1 (x, cmem); } @@ -2950,9 +2956,7 @@ emit_move_insn_1 (x, y) && ! (reload_in_progress || reload_completed) && (GET_CODE (realpart_x) == SUBREG || GET_CODE (imagpart_x) == SUBREG)) - { - emit_insn (gen_rtx_CLOBBER (VOIDmode, x)); - } + emit_insn (gen_rtx_CLOBBER (VOIDmode, x)); emit_insn (GEN_FCN (mov_optab->handlers[(int) submode].insn_code) (realpart_x, realpart_y)); @@ -2971,6 +2975,7 @@ emit_move_insn_1 (x, y) rtx last_insn = 0; rtx seq, inner; int need_clobber; + int i; #ifdef PUSH_ROUNDING @@ -2991,19 +2996,20 @@ emit_move_insn_1 (x, y) #endif stack_pointer_rtx, GEN_INT - (PUSH_ROUNDING (GET_MODE_SIZE (GET_MODE (x)))), - stack_pointer_rtx, - 0, - OPTAB_LIB_WIDEN); + (PUSH_ROUNDING + (GET_MODE_SIZE (GET_MODE (x)))), + stack_pointer_rtx, 0,& OPTAB_LIB_WIDEN); + if (temp != stack_pointer_rtx) emit_move_insn (stack_pointer_rtx, temp); code = GET_CODE (XEXP (x, 0)); + /* Just hope that small offsets off SP are OK. */ if (code == POST_INC) temp = gen_rtx_PLUS (Pmode, stack_pointer_rtx, - GEN_INT (-(HOST_WIDE_INT) - GET_MODE_SIZE (GET_MODE (x)))); + GEN_INT (-((HOST_WIDE_INT) + GET_MODE_SIZE (GET_MODE (x))))); else if (code == POST_DEC) temp = gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (GET_MODE_SIZE (GET_MODE (x)))); @@ -3062,9 +3068,7 @@ emit_move_insn_1 (x, y) if (x != y && ! (reload_in_progress || reload_completed) && need_clobber != 0) - { - emit_insn (gen_rtx_CLOBBER (VOIDmode, x)); - } + emit_insn (gen_rtx_CLOBBER (VOIDmode, x)); emit_insn (seq); |