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[Bug bootstrap/42628] [4.5 regression] ICE during bootstrap when compiling several libsupc++ files: original tree changed by fold
- From: "matt at use dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Jan 2010 19:32:55 -0000
- Subject: [Bug bootstrap/42628] [4.5 regression] ICE during bootstrap when compiling several libsupc++ files: original tree changed by fold
- References: <bug-42628-8137@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from matt at use dot net 2010-01-08 19:32 -------
The crash doesn't happen with:
CFLAGS="-g -O3" CXXFLAGS="-g -O3" ../gcc-trunk/configure --prefix=/home/matt
--enable-gold --enable-build-with-cxx --enable-lto --enable-stage1-checking=all
--disable-werror --disable-bootstrap --enable-languages=c,c++,lto
make -j6
When that build succeeded, I then tried to reproduce the previous problem using
the newly compiled GCC instead of the system's GCC 4.4.1. The problem
reproduces, so it appears to be independent of the compiler used for stage 1.
Should I test with individual options that make up -O3 to try and narrow it
down? I'll start doing that while I wait for further debugging instructions.
You can track me down on freenode IRC as syke, if need be.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42628