This bug was fixed in the package gcc-4.6 - 4.6.2-6ubuntu1
---------------
gcc-4.6 (4.6.2-6ubuntu1) precise; urgency=low
* Merge with Debian.
* Linaro GCC 4.6 2011-12 changes not yet in Ubuntu:
- Generic tuning support for Big-endian platforms.
- SLP support for operations with arbitrary numbers of operands.
- SLP support for conditions.
- Pattern recognition support in basic-block SLP.
- Enhancements to mixed-size condition pattern recognition.
- Unaligned block-move support for ARMv7.
- Added Cortex-A15 integer pipeline tuning.
gcc-4.6 (4.6.2-6) unstable; urgency=low
* Update to SVN 20111208 (r182120) from the gcc-4_6-branch.
- Fix PR c++/51265, PR bootstrap/50888, PR target/51393 (ix86),
PR target/51002 (AVR), PR target/51345 (AVR), PR debug/48190,
PR fortran/50684, PR fortran/51218, PR target/50906 (closes: #650318),
PR tree-optimization/51315 (closes: #635126), PR tree-optimization/50622,
PR fortran/51435, PR debug/51410, PR c/51339, PR rtl-optimization/48721,
PR middle-end/51323 (LP: #897583), PR middle-end/50074,
PR middle-end/50074.
[ Matthias Klose ]
* Run the libstdc++ testsuite on all architectures again. Closes: #622699.
* Apply proposed patch for PR target/50906 (powerpcspe only). Closes: #650318.
* Fix PR target/49030 (ARM), taken from Linaro. Closes: #633479.
* Fix PR target/50193 (ARM), taken from Linaro. Closes: #642127.
* Install the libstdc++.so-gdb.py file. LP: #883269.
* Fix PR c++/50114, backport from trunk. LP: #827806.
* Merge changes to allow gcc-snapshot cross builds, taken from Linaro.
* Update the Linaro support to the 4.6 branch.
[ Marcin Juszkiewicz ]
* Fix issues with gcc-snapshot cross builds.
* Allow building Linaro binary packages in a single package.
* Apply hardening patches for cross builds when enabled for native builds.
-- Matthias Klose <d...@ubuntu.com> Thu, 08 Dec 2011 17:17:30 +0100
** Changed in: gcc-4.6 (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/897583
Title:
Code generation bug with -O2 (-foptimize-sibling-calls)
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