diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 26 |
1 files changed, 15 insertions, 11 deletions
@@ -4845,12 +4845,11 @@ cse_insn (rtx_insn *insn) { machine_mode wider_mode; - for (wider_mode = GET_MODE_WIDER_MODE (mode); - wider_mode != VOIDmode - && GET_MODE_PRECISION (wider_mode) <= BITS_PER_WORD - && src_related == 0; - wider_mode = GET_MODE_WIDER_MODE (wider_mode)) + FOR_EACH_WIDER_MODE (wider_mode, mode) { + if (GET_MODE_PRECISION (wider_mode) > BITS_PER_WORD) + break; + struct table_elt *const_elt = lookup (src_const, HASH (src_const, wider_mode), wider_mode); @@ -4864,6 +4863,9 @@ cse_insn (rtx_insn *insn) src_related = gen_lowpart (mode, const_elt->exp); break; } + + if (src_related != 0) + break; } } @@ -4880,10 +4882,11 @@ cse_insn (rtx_insn *insn) machine_mode tmode; rtx new_and = gen_rtx_AND (VOIDmode, NULL_RTX, XEXP (src, 1)); - for (tmode = GET_MODE_WIDER_MODE (mode); - GET_MODE_SIZE (tmode) <= UNITS_PER_WORD; - tmode = GET_MODE_WIDER_MODE (tmode)) + FOR_EACH_WIDER_MODE (tmode, mode) { + if (GET_MODE_SIZE (tmode) > UNITS_PER_WORD) + break; + rtx inner = gen_lowpart (tmode, XEXP (src, 0)); struct table_elt *larger_elt; @@ -4930,12 +4933,13 @@ cse_insn (rtx_insn *insn) PUT_CODE (memory_extend_rtx, extend_op); XEXP (memory_extend_rtx, 0) = src; - for (tmode = GET_MODE_WIDER_MODE (mode); - GET_MODE_SIZE (tmode) <= UNITS_PER_WORD; - tmode = GET_MODE_WIDER_MODE (tmode)) + FOR_EACH_WIDER_MODE (tmode, mode) { struct table_elt *larger_elt; + if (GET_MODE_SIZE (tmode) > UNITS_PER_WORD) + break; + PUT_MODE (memory_extend_rtx, tmode); larger_elt = lookup (memory_extend_rtx, HASH (memory_extend_rtx, tmode), tmode); |