From ffca81e8e5cfaa90b64ce16734433fce304e9c80 Mon Sep 17 00:00:00 2001 From: vmakarov Date: Thu, 3 Sep 2009 18:33:25 +0000 Subject: [PATCH] 2009-09-03 Vladimir Makarov PR bootstrap/41241 * ira.c (update_equiv_reg): Remove check on class likely spill. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@151388 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 5 +++++ gcc/ira.c | 14 +------------- 2 files changed, 6 insertions(+), 13 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0f5facee807..fc0ff822f93 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2009-09-03 Vladimir Makarov + + PR bootstrap/41241 + * ira.c (update_equiv_reg): Remove check on class likely spill. + 2009-09-03 Jakub Jelinek PR debug/41236 diff --git a/gcc/ira.c b/gcc/ira.c index b960f769534..b9b10dc9d3c 100644 --- a/gcc/ira.c +++ b/gcc/ira.c @@ -2384,21 +2384,9 @@ update_equiv_regs (void) /* We only handle the case of a pseudo register being set once, or always to the same value. */ - /* ??? The mn10200 port breaks if we add equivalences for - values that need an ADDRESS_REGS register and set them equivalent - to a MEM of a pseudo. The actual problem is in the over-conservative - handling of INPADDR_ADDRESS / INPUT_ADDRESS / INPUT triples in - calculate_needs, but we traditionally work around this problem - here by rejecting equivalences when the destination is in a register - that's likely spilled. This is fragile, of course, since the - preferred class of a pseudo depends on all instructions that set - or use it. */ - if (!REG_P (dest) || (regno = REGNO (dest)) < FIRST_PSEUDO_REGISTER - || reg_equiv[regno].init_insns == const0_rtx - || (CLASS_LIKELY_SPILLED_P (reg_preferred_class (regno)) - && MEM_P (src) && ! reg_equiv[regno].is_arg_equivalence)) + || reg_equiv[regno].init_insns == const0_rtx) { /* This might be setting a SUBREG of a pseudo, a pseudo that is also set somewhere else to a constant. */ -- 2.11.4.GIT