diff options
Diffstat (limited to 'gcc/regcprop.c')
| -rw-r--r-- | gcc/regcprop.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/gcc/regcprop.c b/gcc/regcprop.c index 744878d8e63..3cda1a7c24e 100644 --- a/gcc/regcprop.c +++ b/gcc/regcprop.c @@ -990,9 +990,12 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd) /* Clobber call-clobbered registers. */ if (CALL_P (insn)) { - int set_regno = INVALID_REGNUM; - int set_nregs = 0; + unsigned int set_regno = INVALID_REGNUM; + unsigned int set_nregs = 0; + unsigned int regno; rtx exp; + hard_reg_set_iterator hrsi; + for (exp = CALL_INSN_FUNCTION_USAGE (insn); exp; exp = XEXP (exp, 1)) { rtx x = XEXP (exp, 0); @@ -1009,10 +1012,10 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd) break; } } - for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) - if (TEST_HARD_REG_BIT (regs_invalidated_by_call, i) - && (i < set_regno || i >= set_regno + set_nregs)) - kill_value_regno (i, 1, vd); + + EXECUTE_IF_SET_IN_HARD_REG_SET (regs_invalidated_by_call, 0, regno, hrsi) + if (regno < set_regno || regno >= set_regno + set_nregs) + kill_value_regno (regno, 1, vd); } /* Notice stores. */ |