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[Bug tree-optimization/50452] [4.7 Regression] Internal compiler error: verify_flow_info failed
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 10 Oct 2011 14:15:27 +0000
- Subject: [Bug tree-optimization/50452] [4.7 Regression] Internal compiler error: verify_flow_info failed
- Auto-submitted: auto-generated
- References: <bug-50452-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50452
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-10-10
CC| |hubicka at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-10 14:15:27 UTC ---
Confirmed.
t.i: In function 'bar':
t.i:6:1: error: definition in block 3 follows the use
for SSA_NAME: D.2752_14 in statement:
D.2758_15 = (short int) D.2752_14;
t.i:6:1: internal compiler error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
triggered by IPA inlining when inlining bar.part.0 into bar.
Function splitting already produces bogus code though (but it's not
catched there):
<bb 3>:
b.2_8 = b;
bar.part.0 (s_13(D), a_1(D), D.2752_14);
D.2752_14 = (int) b.2_8;
as it doesn't verify anything ... (patch for that coming).