https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85834
Bug ID: 85834
Summary: ice in set_ssa_val_to, at tree-ssa-sccvn.c:3396
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
../../trunk/gcc/asan.c: In function ‘rtx_insn* asan_emit_stack_protection(rtx,
rtx, unsigned int, long int*, tree_node**, int)’:
../../trunk/gcc/asan.c:1252:1: internal compiler error: in set_ssa_val_to, at
tree-ssa-sccvn.c:3396
asan_emit_stack_protection (rtx base, rtx pbase, unsigned int alignb,
^~~~~~~~~~~~~~~~~~~~~~~~~~
0x10391dd set_ssa_val_to(tree_node*, tree_node*)
../../trunk/gcc/tree-ssa-sccvn.c:3393
0x103a3c5 visit_use(tree_node*)
../../trunk/gcc/tree-ssa-sccvn.c:0
0x102fdcb process_scc(vec<tree_node*, va_heap, vl_ptr>)
../../trunk/gcc/tree-ssa-sccvn.c:4416
0x102fdcb extract_and_process_scc_for_name(tree_node*)
../../trunk/gcc/tree-ssa-sccvn.c:4487
This fault can be demonstrated by bootstrapping gcc with the following
commands:
../trunk/configure --prefix=/home/dcb/gcc/results.260370 \
--disable-multilib \
--disable-werror \
--enable-checking=df,extra,fold,rtl,yes \
--enable-languages=c,c++,fortran
sed 's/-O2/-O3/' < Makefile > Makefile.tmp
mv Makefile.tmp Makefile
This command used to work at revision 260281, but now at revision
260370, it doesn't work.
