[Bug bootstrap/51098] [4.7 Regression] bootstrap failed on avx i686, svn revision 181259 to 181267

[evstupac at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51098

--- Comment #6 from Stupachenko Evgeny <evstupac at gmail dot com> 2011-11-16 10:32:31 UTC ---
Bootstrap fail was caused by later commit (revision 181246):

------------------------------------------------------------------------
r181246 | rth | 2011-11-10 04:29:38 +0400 (Thu, 10 Nov 2011) | 1 line
Changed paths:
   M /trunk/libitm/ChangeLog
   M /trunk/libitm/acinclude.m4
   M /trunk/libitm/config/x86/x86_avx.cc
   M /trunk/libitm/config.h.in
   M /trunk/libitm/configure
   M /trunk/libitm/configure.ac

libitm: Work around assembler missing AVX insns.


181154      aldyh   fi
181154      aldyh 
181246        rth case "${target_cpu}" in
181246        rth i345686 | x86_64)
181246        rth   { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the
assembler supports AVX" >&5
181246        rth $as_echo_n "checking if the assembler supports AVX... " >&6;
}
181246        rth if test "${libitm_cv_as_avx+set}" = set; then :
181246        rth   $as_echo_n "(cached)


i345686 shoud be i[3456]86

That is why HAVE_AS_AVX was not set for i686 target_cpu.