diff options
Diffstat (limited to 'gcc/config/xtensa/xtensa.md')
| -rw-r--r-- | gcc/config/xtensa/xtensa.md | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md index fa2a4a0..8ed0ff5 100644 --- a/gcc/config/xtensa/xtensa.md +++ b/gcc/config/xtensa/xtensa.md @@ -2749,3 +2749,34 @@ (if_then_else (match_test "TARGET_DENSITY") (const_int 5) (const_int 6)))]) + +(define_peephole2 + [(set (match_operand:SI 0 "register_operand") + (match_operand:SI 6 "reload_operand")) + (set (match_operand:SI 1 "register_operand") + (match_operand:SI 7 "reload_operand")) + (set (match_operand:SF 2 "register_operand") + (match_operand:SF 4 "register_operand")) + (set (match_operand:SF 3 "register_operand") + (match_operand:SF 5 "register_operand"))] + "REGNO (operands[0]) == REGNO (operands[4]) + && REGNO (operands[1]) == REGNO (operands[5]) + && peep2_reg_dead_p (4, operands[0]) + && peep2_reg_dead_p (4, operands[1])" + [(set (match_dup 2) + (match_dup 6)) + (set (match_dup 3) + (match_dup 7))] +{ + uint32_t check = 0; + int i; + for (i = 0; i <= 3; ++i) + { + uint32_t mask = (uint32_t)1 << REGNO (operands[i]); + if (check & mask) + FAIL; + check |= mask; + } + operands[6] = gen_rtx_MEM (SFmode, XEXP (operands[6], 0)); + operands[7] = gen_rtx_MEM (SFmode, XEXP (operands[7], 0)); +}) |