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author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-09-03 18:33:25 +0000 |
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committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-09-03 18:33:25 +0000 |
commit | ffca81e8e5cfaa90b64ce16734433fce304e9c80 (patch) | |
tree | e27c07f57199ff5f91cca9b2886d35f348e9bc06 /gcc/ira.c | |
parent | 1602764e229df36b9eec13b6bb88ed2a27f29fb0 (diff) | |
download | gcc-ffca81e8e5cfaa90b64ce16734433fce304e9c80.tar.gz |
2009-09-03 Vladimir Makarov <vmakarov@redhat.com>
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
Diffstat (limited to 'gcc/ira.c')
-rw-r--r-- | gcc/ira.c | 14 |
1 files changed, 1 insertions, 13 deletions
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. */ |