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Subject: [Bug bootstrap/46528] [4.6 Regression] profiledbootstrap failure
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46528

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-24 21:18:43 UTC ---
I can't reproduce it on x86_64-unknown-linux-gnu with

./configure --disable-checking --enable-languages=c

or with

./configure --enable-languages=c,c++,fortran

I can reproduce it with the attached testcase and stage1 xgcc though:

> ./xgcc -B. -O2 -g -fprofile-use -c macro.i 
../../gcc-svn/trunk/libcpp/macro.c: In function 'cpp_macro_definition':
../../gcc-svn/trunk/libcpp/macro.c:2123:1: error: corrupted profile info:
profile data is not flow-consistent
../../gcc-svn/trunk/libcpp/macro.c:2123:1: error: corrupted profile info:
number of executions for edge 45-59 thought to be -104
../../gcc-svn/trunk/libcpp/macro.c:2123:1: error: corrupted profile info:
number of executions for edge 45-1 thought to be 104
../../gcc-svn/trunk/libcpp/macro.c:2123:1: error: corrupted profile info:
number of executions for edge 55-56 thought to be 10
../../gcc-svn/trunk/libcpp/macro.c:2123:1: error: corrupted profile info:
number of executions for edge 55-57 thought to be -5

would be nice to know if

BOOT_CFLAGS="-O2 -g -fno-inline" ./configure --enable-languages=c
make profiledbootstrap BOOT_CFLAGS="-O2 -g -fno-inline"

also fails, alternatively s/-g -fno-inline/-g0/ or
s/-fno-inline/-fno-partial-inlining.