https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63914
Bug ID: 63914
Summary: ice in set_lattice_value, at tree-ssa-ccp.c:517
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Created attachment 34003
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34003&action=edit
gzipped C source code
I just tried to compile the attached C code with the latest trunk
dated 20141116 on a Fedora Linux x86_64 box.
The compiler said
$ ../results/bin/gcc -std=c99 -O2 -ffast-math -c bug176.c
/home/dcb/rpmbuild/BUILD/darktable-1.4.2/src/common/interpolation.c: In
function ‘dt_interpolation_compute_pixel4c’:
/home/dcb/rpmbuild/BUILD/darktable-1.4.2/src/common/interpolation.c:879:1:
internal compiler error: in set_lattice_value, at tree-ssa-ccp.c:517
dt_interpolation_compute_pixel4c(
^
0xbac75e set_lattice_value(tree_node*, ccp_prop_value_t)
../../src/trunk/gcc/tree-ssa-ccp.c:517
0xbac8e1 visit_assignment(gimple_statement_base*, tree_node**)
../../src/trunk/gcc/tree-ssa-ccp.c:2256
0xba465e ccp_visit_stmt(gimple_statement_base*, edge_def**, tree_node**)
../../src/trunk/gcc/tree-ssa-ccp.c:2325
0xc1e6c9 simulate_stmt(gimple_statement_base*)
../../src/trunk/gcc/tree-ssa-propagate.c:340
0xc1d387 process_ssa_edge_worklist(vec<gimple_statement_base*, va_heap,
vl_ptr>*)
../../src/trunk/gcc/tree-ssa-propagate.c:414
0xc1d039 ssa_propagate(ssa_prop_result (*)(gimple_statement_base*, edge_def**,
tree_node**), ssa_prop_result (*)(gimple_statement_base*))
../../src/trunk/gcc/tree-ssa-propagate.c:885
0xba4021 do_ssa_ccp()
../../src/trunk/gcc/tree-ssa-ccp.c:2371
0xba4021 (anonymous namespace)::pass_ccp::execute(function*)
../../src/trunk/gcc/tree-ssa-ccp.c:2404
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
[dcb@zippy4 foundBugs]$
Flags -std=c99 -O2 -ffast-math required.
