| Summary: | [4.5 Regression] ICE: error: in remove_unreachable_handlers, at tree-sh.c:3294 with -O2 -floop-interchange | ||
|---|---|---|---|
| Product: | gcc | Reporter: | bero |
| Component: | tree-optimization | Assignee: | Sebastian Pop <spop> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | gcc-bugs, jakub, spop |
| Priority: | P2 | Keywords: | ice-on-valid-code |
| Version: | 4.5.1 | ||
| Target Milestone: | 4.5.2 | ||
| Host: | i586-pc-linux-gnu | Target: | i586-pc-linux-gnu |
| Build: | i586-pc-linux-gnu | Known to work: | 4.4.4, 4.6.0 |
| Known to fail: | 4.5.1 | Last reconfirmed: | 2010-08-18 09:16:16 |
| Attachments: |
Preprocessed source
(fairly stupid) Workaround 0001-Fix-PR45314-backport-revision-163123.patch |
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Description
bero
2010-08-17 22:24:41 UTC
Created attachment 21508 [details]
Preprocessed source
With 4.5.1 I get (checking enabled) VM.cpp: In member function 'gnash::VM::RNG& gnash::VM::randomNumberGenerator() const': VM.cpp:126:1: error: statement marked for throw in middle of block # .MEM_19 = VDEF <.MEM_18> D.294844_12 = OBJ_TYPE_REF(D.294843_10;D.294841_8->0) (D.294841_8); VM.cpp:126:1: internal compiler error: verify_stmts failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. and with trunk I get VM.cpp: In member function 'gnash::VM::RNG& gnash::VM::randomNumberGenerator() const': VM.cpp:126:1: internal compiler error: in create_linear_expr_from_tree, at graphite-sese-to-poly.c:1207 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. 4.4.4 works. Created attachment 21611 [details]
(fairly stupid) Workaround
Attaching workaround for people coming across this bug report when googling the error message.
Can't reproduce with current trunk, ./cc1plus -m32 -O2 pr45314.ii -quiet -floop-interchange is fine. Still happens on current 4.5 branch On trunk, it was fixed by revision 163123: http://gcc.gnu.org/ml/gcc-cvs/2010-08/msg00334.html On Fri, Nov 5, 2010 at 11:26, hjl.tools at gmail dot com <gcc-bugzilla@gcc.gnu.org> wrote: > On trunk, it was fixed by revision 163123: > > http://gcc.gnu.org/ml/gcc-cvs/2010-08/msg00334.html > Thanks HJ for reducing this. I looked at this change and it looks simple enough to backport it to 4.5. Mine. Created attachment 22296 [details] 0001-Fix-PR45314-backport-revision-163123.patch Just for the record, this is introduced by revision 155739: http://gcc.gnu.org/ml/gcc-cvs/2010-01/msg00200.html Here is the backported patch that fixes the ICE. I will further test this and will post to gcc-patches. Sebastian The patch fixing this has been committed with the wrong PR number on: Author: spop Date: Tue Nov 9 19:08:57 2010 New Revision: 166506 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166506 Log: Fix PR45314: backport revision 163123. 2010-11-09 Sebastian Pop <sebastian.pop@amd.com> PR tree-optimization/45902 Backport of revision 163132. * graphite-sese-to-poly.c (rewrite_phi_out_of_ssa): Always insert out of SSA copies on edges except for loop->latch. Modified: branches/gcc-4_5-branch/gcc/ChangeLog branches/gcc-4_5-branch/gcc/graphite-sese-to-poly.c Author: spop Date: Tue Nov 9 19:15:36 2010 New Revision: 166507 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166507 Log: Fix Changelog entry. 2010-11-09 Sebastian Pop <sebastian.pop@amd.com> PR tree-optimization/45314 Backport of revision 163132. * graphite-sese-to-poly.c (rewrite_phi_out_of_ssa): Always insert out of SSA copies on edges except for loop->latch. Modified: branches/gcc-4_5-branch/gcc/ChangeLog Fixed. |