* GCC mainline is broken on x86
@ 2011-06-12 14:00 H.J. Lu
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From: H.J. Lu @ 2011-06-12 14:00 UTC (permalink / raw)
To: GCC Patches, GCC Development
Hi,
Revision 174952:
http://gcc.gnu.org/ml/gcc-cvs/2011-06/msg00441.html
totally breaks C++ on x86:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49378
http://gcc.gnu.org/ml/gcc-regression/2011-06/msg00159.html
One symptom is we are using uninitialized registers, which leads
to writing random memory location. The same ia32 binary works on
Fedora 14 under kernel 2.6.35 and failed under Fedora 15 under
kernel 2.6.38.
We also use uninitialized registers on x86-64, but the program
doesn't crash. This bug may also affects C and other languages.
--
H.J.
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