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Re: Unbreak bootstrap
On Wed, Sep 05, 2007 at 12:49:24AM +0200, Jan Hubicka wrote:
> On most targets the failure point is:
>
> /abuild/gcc-test/gcc/objdir/./prev-gcc/xgcc -B/abuild/gcc-test/gcc/objdir/./prev-gcc/ -B/usr/local/i686-pc-linux-gnu/bin/ -c -g -O2 -fomit-frame-pointer
> +-DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute -pedantic -Wno-long-long
> +-Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I/abuild/gcc-test/gcc/gcc
> +-I/abuild/gcc-test/gcc/gcc/. -I/abuild/gcc-test/gcc/gcc/../include -I/abuild/gcc-test/gcc/gcc/../libcpp/include -I/abuild/gcc-test/gcc/gcc/../libdecnumber
> +-I/abuild/gcc-test/gcc/gcc/../libdecnumber/bid -I../libdecnumber /abuild/gcc-test/gcc/gcc/tree-ssa-threadedge.c -o tree-ssa-threadedge.o
> /abuild/gcc-test/gcc/gcc/tree-ssa-structalias.c: In function 'get_constraint_exp_from_ssa_var':
> /abuild/gcc-test/gcc/gcc/tree-ssa-structalias.c:5627: internal compiler error: tree check: expected ssa_name, have result_decl in eliminate_tail_call, at
> +tree-tailcall.c:803
>
> At stage3, so as correclty pointed out by Andrew, tree-tailcall is not
> the problematic point at least in obvious way, I am still trying to look
> into the testsuite failures on non-bootstrapped compilers.
>
> I will do quick testing that bootstrap gets past this point with both
> patches reverted and revert them for now.
On ia64-linux the bootstrap failure was:
Bootstrap comparison failure!
./predict.o differs
make[2]: *** [compare] Error 1
Reverting http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128089
cured it.
Jakub