diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 25 |
1 files changed, 11 insertions, 14 deletions
@@ -3953,10 +3953,9 @@ record_jump_cond (enum rtx_code code, machine_mode mode, rtx op0, if we test MODE instead, we can get an infinite recursion alternating between two modes each wider than MODE. */ - if (code == NE && GET_CODE (op0) == SUBREG - && subreg_lowpart_p (op0) - && (GET_MODE_SIZE (GET_MODE (op0)) - < GET_MODE_SIZE (GET_MODE (SUBREG_REG (op0))))) + if (code == NE + && partial_subreg_p (op0) + && subreg_lowpart_p (op0)) { machine_mode inner_mode = GET_MODE (SUBREG_REG (op0)); rtx tem = record_jump_cond_subreg (inner_mode, op1); @@ -3965,10 +3964,9 @@ record_jump_cond (enum rtx_code code, machine_mode mode, rtx op0, reversed_nonequality); } - if (code == NE && GET_CODE (op1) == SUBREG - && subreg_lowpart_p (op1) - && (GET_MODE_SIZE (GET_MODE (op1)) - < GET_MODE_SIZE (GET_MODE (SUBREG_REG (op1))))) + if (code == NE + && partial_subreg_p (op1) + && subreg_lowpart_p (op1)) { machine_mode inner_mode = GET_MODE (SUBREG_REG (op1)); rtx tem = record_jump_cond_subreg (inner_mode, op0); @@ -5013,8 +5011,8 @@ cse_insn (rtx_insn *insn) && ! (src != 0 && GET_CODE (src) == SUBREG && GET_MODE (src) == GET_MODE (p->exp) - && (GET_MODE_SIZE (GET_MODE (SUBREG_REG (src))) - < GET_MODE_SIZE (GET_MODE (SUBREG_REG (p->exp)))))) + && partial_subreg_p (GET_MODE (SUBREG_REG (src)), + GET_MODE (SUBREG_REG (p->exp))))) continue; if (src && GET_CODE (src) == code && rtx_equal_p (src, p->exp)) @@ -5124,8 +5122,8 @@ cse_insn (rtx_insn *insn) && ! (src != 0 && GET_CODE (src) == SUBREG && GET_MODE (src) == GET_MODE (elt->exp) - && (GET_MODE_SIZE (GET_MODE (SUBREG_REG (src))) - < GET_MODE_SIZE (GET_MODE (SUBREG_REG (elt->exp)))))) + && partial_subreg_p (GET_MODE (SUBREG_REG (src)), + GET_MODE (SUBREG_REG (elt->exp))))) { elt = elt->next_same_value; continue; @@ -5967,8 +5965,7 @@ cse_insn (rtx_insn *insn) && (((GET_MODE_SIZE (GET_MODE (SUBREG_REG (dest))) - 1) / UNITS_PER_WORD) == (GET_MODE_SIZE (GET_MODE (dest)) - 1) / UNITS_PER_WORD) - && (GET_MODE_SIZE (GET_MODE (dest)) - >= GET_MODE_SIZE (GET_MODE (SUBREG_REG (dest)))) + && !partial_subreg_p (dest) && sets[i].src_elt != 0) { machine_mode new_mode = GET_MODE (SUBREG_REG (dest)); |