The Precise Pangolin has reached end of life, so this bug will not be
fixed for that release
** Changed in: gcc-4.6 (Ubuntu Precise)
Status: Confirmed => Won't Fix
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FWIW, uweigand's test case still fails with
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.6.3-1ubuntu5' --with-bugurl=file:///usr/sha
The change that has been uploaded to precise-proposed looks appropriate
for an SRU, but this bug is missing required SRU information in the bug
description. In particular, the test case needs to be spelled out in
clearer detail so that we can follow it. (The patch is only applied to
the linaro br
** Changed in: gcc-linaro
Status: Fix Committed => Fix Released
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Title:
ICE (segfault) in gsi_for_stmt
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This bug was fixed in the package gcc-4.6 - 4.6.3-4ubuntu1
---
gcc-4.6 (4.6.3-4ubuntu1) quantal; urgency=low
* Update to SVN 20120425 (r186817) from the gcc-4_6-branch.
- Fix PR middle-end/53084, PR lto/48246.
* Default to armv5t, soft float on armel.
gcc-4.6 (4.6.3-4) unstab
** Branch linked: lp:debian/gnat-4.6
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Title:
ICE (segfault) in gsi_for_stmt
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** Branch linked: lp:debian/gcc-4.6
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Title:
ICE (segfault) in gsi_for_stmt
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I've checked in a backport of Richard's fix to Linaro GCC 4.6. Other
series are not affected.
** Changed in: gcc-linaro
Milestone: None => 4.6-2012.05
** Changed in: gcc-linaro
Status: In Progress => Fix Committed
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** Branch linked: lp:~uweigand/gcc-linaro/lp-972648-4.6
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Title:
ICE (segfault) in gsi_for_stmt
To manage notifications about this bug go to:
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A minimal (C) test case (with "-O -ftree-vectorize") for me is:
struct test
{
unsigned long exp[0];
};
void test (struct test *a, long b, unsigned long bitmask)
{
if (b > 0)
{
a->exp[0] &= ~bitmask;
a->exp[0] |= b;
}
else
{
a->exp[0] &= ~bitmask;
}
}
The p
Yes, the latter (kspoly.cc) also compiles with '-O3 -fno-tree-
vectorize'. These two files seem to be the only ones (of Singular)
Ubuntu's GCC 4.6.3 / cc1plus crashes on.
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I can confirm this behavior on 32-bit Precise. I get the same errors
with sparsmat.ii, and the workaround...uh, works around the problem
successfully. My gcc is "4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu3)".
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I can send you further similar examples in case you need them:
Starting program: /usr/lib/gcc/x86_64-linux-gnu/4.6/cc1plus -quiet -I .
-I .. -I /mnt/linux-data-on-
win7/Sage/sage-5.0.beta11-gcc-4.6.3-1ubuntu3/local -I /mnt/linux-data-
on-win7/Sage/sage-5.0.beta11-gcc-4.6.3-1ubuntu3/local/include -
FWIW, also doesn't happen with FSF 4.7.0.
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Title:
ICE (segfault) in gsi_for_stmt
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Thank you for the bug report. I've confirmed this with gcc-
linaro-4.6-2012.03+bzr106882 on x86_64:
michaelh@crucis:~/linaro/gcc/build/native-4.6/gcc$ PATH=$PWD:$PATH ./xgcc -O3
~/linaro/bugs/sparsmat.ii
sparsmat.cc: In function ‘long int smExpBound(ideal, int, int, int)’:
sparsmat.cc:216:37: wa
not seen with FSF 4.6.3, but with 4.6 Linaro
** Also affects: gcc-4.6 (Ubuntu Precise)
Importance: Medium
Status: Confirmed
** Changed in: gcc-4.6 (Ubuntu Precise)
Milestone: None => precise-updates
** Also affects: gcc-linaro
Importance: Undecided
Status: New
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** Attachment added: "preprocessed source"
https://bugs.launchpad.net/bugs/972648/+attachment/2997474/+files/sparsmat.ii.gz
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Title:
ICE (segfa
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