diff options
Diffstat (limited to 'gcc/reload.c')
| -rw-r--r-- | gcc/reload.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index ae913bf094f..06ce96bfd38 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -2794,7 +2794,8 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known, && MEM_P (op) && REG_P (reg) && (GET_MODE_SIZE (GET_MODE (reg)) - >= GET_MODE_SIZE (GET_MODE (op)))) + >= GET_MODE_SIZE (GET_MODE (op))) + && reg_equiv_constant[REGNO (reg)] == 0) set_unique_reg_note (emit_insn_before (gen_rtx_USE (VOIDmode, reg), insn), REG_EQUAL, reg_equiv_memory_loc[REGNO (reg)]); @@ -4600,14 +4601,6 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type, int regno = REGNO (SUBREG_REG (x)); rtx tem; - if (subreg_lowpart_p (x) - && regno >= FIRST_PSEUDO_REGISTER - && reg_renumber[regno] < 0 - && reg_equiv_constant[regno] != 0 - && (tem = gen_lowpart_common (GET_MODE (x), - reg_equiv_constant[regno])) != 0) - return tem; - if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] < 0 && reg_equiv_constant[regno] != 0) @@ -4616,6 +4609,15 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type, simplify_gen_subreg (GET_MODE (x), reg_equiv_constant[regno], GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x)); gcc_assert (tem); + if (CONSTANT_P (tem) && !LEGITIMATE_CONSTANT_P (tem)) + { + tem = force_const_mem (GET_MODE (x), tem); + i = find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0), + &XEXP (tem, 0), opnum, type, + ind_levels, insn); + if (address_reloaded) + *address_reloaded = i; + } return tem; } |