[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #14 from drab at kepler dot fjfi dot cvut dot cz 2007-01-23 23:19 --- I've tested my original testcase for this bug and it seems to work for me on i686 and gcc version 4.3.0 20070121 (experimental). So, it seems to be fixed. Can anyone confirm, please? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #18 from pthaugen at gcc dot gnu dot org 2007-10-10 22:28
---
I'm appear to be seeing the same thing trying to build 445.gobmk from cpu2006
on PowerPC.
run/build_base_gcc_64.> cat junk.c
int board_size;
void print_eye(int eye[400])
{
int m, n;
int mini, maxi;
int minj, maxj;
mini = 1;
minj = 1;
for (m = 0; m < board_size; m++)
for (n = 0; n < board_size; n++) {
if (eye[m + n] != 5) continue;
if (m < mini) mini = m;
if (n < minj) minj = n;
}
board_size = mini + minj;
}
run/build_base_gcc_64.> /home/pthaugen/install/gcc/trunk/bin/gcc -c -m64
-O2 -ftree-loop-linear junk.c
junk.c: In function 'print_eye':
junk.c:5: internal compiler error: in lambda_loopnest_to_gcc_loopnest, at
lambda-code.c:1840
Please submit a full bug report,
with preprocessed source if appropriate.
See for instructions.
--
pthaugen at gcc dot gnu dot org changed:
What|Removed |Added
CC||pthaugen at gcc dot gnu dot
||org, bergner at gcc dot gnu
||dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #19 from ubizjak at gmail dot com 2007-10-11 05:58 --- (In reply to comment #18) > I'm appear to be seeing the same thing trying to build 445.gobmk from cpu2006 > on PowerPC. Also fails on x86_64-pc-linux-gnu, Revision: 129224. Compiles OK for i686-pc-linux-gnu target. -- ubizjak at gmail dot com changed: What|Removed |Added GCC target triplet||x86_64-*-*, ppc64-*-* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #20 from pinskia at gcc dot gnu dot org 2007-10-11 06:08 --- (gdb) p debug_generic_expr (stmt) minj_7 = PHI -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #21 from pinskia at gcc dot gnu dot org 2007-10-11 06:13 --- Hmm, in 32bits it does this: Won't transform loop. Optimal transform is the identity transform While in 64bits, it tries to transform it. It really does not matter which order for the testcase in comment #18 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #22 from spop at gcc dot gnu dot org 2007-10-11 19:35 --- Subject: Re: [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear There are several bugs that fail in the exact same place, because we're not able to generate code for some induction variable containing a phi node in their evolution. I'm trying to fix all these bugs by implementing an analysis phase that will filter out all the difficult loops for which we know we won't be able to generate code for. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #24 from spop at gcc dot gnu dot org 2007-10-19 19:03 --- Fixed. -- spop at gcc dot gnu dot org changed: What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #23 from spop at gcc dot gnu dot org 2007-10-19 19:02 --- Subject: Bug 24309 Author: spop Date: Fri Oct 19 19:01:58 2007 New Revision: 129494 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129494 Log: 2007-10-19 Sebastian Pop <[EMAIL PROTECTED]> PR tree-optimization/23820 PR tree-optimization/24309 PR tree-optimization/33766 * testsuite/gcc.dg/tree-ssa/pr23820.c: New. * testsuite/gcc.dg/tree-ssa/pr24309.c: New. * testsuite/gcc.dg/tree-ssa/pr33766.c: New. * testsuite/gcc.dg/tree-ssa/ltrans-3.c: XFAILed. * tree-loop-linear.c (perfect_loop_nest_depth): New. (linear_transform_loops): Use perfect_loop_nest_depth. * lambda-code.c (perfect_nest_p): Outer loops in perfect nests should have a single condition: their exit. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/pr23820.c trunk/gcc/testsuite/gcc.dg/tree-ssa/pr24309.c trunk/gcc/testsuite/gcc.dg/tree-ssa/pr33766.c Modified: trunk/gcc/ChangeLog trunk/gcc/lambda-code.c trunk/gcc/testsuite/gcc.dg/tree-ssa/ltrans-3.c trunk/gcc/tree-loop-linear.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
-- mmitchel at gcc dot gnu dot org changed: What|Removed |Added Target Milestone|4.1.2 |4.1.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #15 from irar at il dot ibm dot com 2007-03-05 09:30 --- I tried the reduced testcase on powerpc with -ftree-loop-linear and both -O2 and -O3 on 4.1, 4.2 and 4.3, and it works fine. Ira -- irar at il dot ibm dot com changed: What|Removed |Added CC||irar at il dot ibm dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #16 from rguenth at gcc dot gnu dot org 2007-09-18 13:16 --- I can still see the ICE with -O2 -ftree-loop-linear and the testcase from comment 2 on trunk (x86_64): t.i: In function 'lsp_weight_quant': t.i:3: internal compiler error: in lambda_loopnest_to_gcc_loopnest, at lambda-code.c:1839 gcc_assert (TREE_CODE (stmt) != PHI_NODE); but (gdb) call debug_generic_expr (stmt) best_id_6 = PHI -- rguenth at gcc dot gnu dot org changed: What|Removed |Added Last reconfirmed|2007-08-06 14:56:17 |2007-09-18 13:16:26 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
[Bug tree-optimization/24309] [4.1/4.2/4.3 Regression] ICE with -O3 -ftree-loop-linear
--- Comment #17 from rguenth at gcc dot gnu dot org 2007-09-18 13:17 --- Sebastian, can you have a look at this? -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||spop at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24309
