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Fix -fprofile-use ICE. 

PR rtl-optimization/16490
* cfgrtl.c (cfg_layout_split_edge): Set global_live_at_start and
global_live_at_end for new basic block if already set for other blocks.

From-SVN: r85813
This commit is contained in:
James E Wilson 2004-08-11 20:08:00 +00:00 committed by Jim Wilson
parent c1618c0ca2
commit af87423702
2 changed files with 18 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-08-11 James E Wilson <wilson@specifixinc.com>
PR rtl-optimization/16490
* cfgrtl.c (cfg_layout_split_edge): Set global_live_at_start and
global_live_at_end for new basic block if already set for other blocks.
2004-08-11 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.h (MAX_FIXED_MODE_SIZE): Define.

12
gcc/cfgrtl.c
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@ -2781,6 +2781,18 @@ cfg_layout_split_edge (edge e)
? NEXT_INSN (BB_END (e->src)) : get_insns (),
NULL_RTX, e->src);
/* ??? This info is likely going to be out of date very soon, but we must
create it to avoid getting an ICE later. */
if (e->dest->global_live_at_start)
{
new_bb->global_live_at_start = OBSTACK_ALLOC_REG_SET (&flow_obstack);
new_bb->global_live_at_end = OBSTACK_ALLOC_REG_SET (&flow_obstack);
COPY_REG_SET (new_bb->global_live_at_start,
e->dest->global_live_at_start);
COPY_REG_SET (new_bb->global_live_at_end,
e->dest->global_live_at_start);
}
new_e = make_edge (new_bb, e->dest, EDGE_FALLTHRU);
redirect_edge_and_branch_force (e, new_bb);