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re PR target/59233 (C++ failures after revision 205058 on *-apple-darwin* with -m32)

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2013-11-21  Teresa Johnson  <tejohnson@google.com>

	PR target/59233
	* cfgcleanup.c (outgoing_edges_match): Walk up past note instructions
	not understood by old_insns_match_p.

From-SVN: r205243
This commit is contained in:
Teresa Johnson 2013-11-22 04:16:47 +00:00 committed by Teresa Johnson
parent 5b3f0a5475
commit d41d612242
2 changed files with 18 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2013-11-21 Teresa Johnson <tejohnson@google.com>
PR target/59233
* cfgcleanup.c (outgoing_edges_match): Walk up past note instructions
not understood by old_insns_match_p.
2013-11-21 Bill Schmidt <wschmidt@vnet.ibm.com>
* config/rs6000/vector.md (vec_pack_trunc_v2df): Revert previous

16
gcc/cfgcleanup.c
View File

@ -1743,12 +1743,20 @@ outgoing_edges_match (int mode, basic_block bb1, basic_block bb2)
}
}
/* Find the last non-debug non-note instruction in each bb, except
stop when we see the NOTE_INSN_BASIC_BLOCK, as old_insns_match_p
handles that case specially. old_insns_match_p does not handle
other types of instruction notes. */
rtx last1 = BB_END (bb1);
rtx last2 = BB_END (bb2);
if (DEBUG_INSN_P (last1))
last1 = prev_nondebug_insn (last1);
if (DEBUG_INSN_P (last2))
last2 = prev_nondebug_insn (last2);
while (!NOTE_INSN_BASIC_BLOCK_P (last1) &&
(DEBUG_INSN_P (last1) || NOTE_P (last1)))
last1 = PREV_INSN (last1);
while (!NOTE_INSN_BASIC_BLOCK_P (last2) &&
(DEBUG_INSN_P (last2) || NOTE_P (last2)))
last2 = PREV_INSN (last2);
gcc_assert (last1 && last2);
/* First ensure that the instructions match. There may be many outgoing
edges so this test is generally cheaper. */
if (old_insns_match_p (mode, last1, last2) != dir_both)