From 8d696651ab2212b79adb86abd2bdde4b88d56a8f Mon Sep 17 00:00:00 2001 From: Tom de Vries Date: Fri, 17 Oct 2014 06:36:45 +0000 Subject: Use fuse-caller-save info in cprop-hardreg 2014-10-17 Tom de Vries PR rtl-optimization/61605 * regcprop.c (copyprop_hardreg_forward_1): Use regs_invalidated_by_this_call instead of regs_invalidated_by_call. * gcc.target/i386/fuse-caller-save.c: Update addition check. Add movl absence check. From-SVN: r216365 --- gcc/regcprop.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'gcc/regcprop.c') diff --git a/gcc/regcprop.c b/gcc/regcprop.c index 015366b..262de1b 100644 --- a/gcc/regcprop.c +++ b/gcc/regcprop.c @@ -1005,6 +1005,7 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd) unsigned int set_nregs = 0; unsigned int regno; rtx exp; + HARD_REG_SET regs_invalidated_by_this_call; for (exp = CALL_INSN_FUNCTION_USAGE (insn); exp; exp = XEXP (exp, 1)) { @@ -1023,8 +1024,11 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd) } } + get_call_reg_set_usage (insn, + ®s_invalidated_by_this_call, + regs_invalidated_by_call); for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) - if ((TEST_HARD_REG_BIT (regs_invalidated_by_call, regno) + if ((TEST_HARD_REG_BIT (regs_invalidated_by_this_call, regno) || HARD_REGNO_CALL_PART_CLOBBERED (regno, vd->e[regno].mode)) && (regno < set_regno || regno >= set_regno + set_nregs)) kill_value_regno (regno, 1, vd); -- cgit v1.1