https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65758
Bug ID: 65758
Summary: [6 Regression] 191.fma3d in SPEC CPU 200 failed to
build
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
On Linux/x86-64, r222061 gave
gfortran -c -o output.o -DSPEC_CPU2000_LP64 -O2 -ffast-math
output.f90
...
internal compiler error: in set_lattice_value, at tree-ssa-ccp.c:524
0xc70167 set_lattice_value
../../src-trunk/gcc/tree-ssa-ccp.c:524
0xc7502a visit_assignment
../../src-trunk/gcc/tree-ssa-ccp.c:2268
0xc7518c ccp_visit_stmt
../../src-trunk/gcc/tree-ssa-ccp.c:2342
0xcf6264 simulate_stmt
../../src-trunk/gcc/tree-ssa-propagate.c:348
0xcf6417 process_ssa_edge_worklist
../../src-trunk/gcc/tree-ssa-propagate.c:422
0xcf7c18 ssa_propagate(ssa_prop_result (*)(gimple_statement_base*, edge_def**,
t
ree_node**), ssa_prop_result (*)(gphi*))
../../src-trunk/gcc/tree-ssa-propagate.c:896
0xc6e0d4 do_ssa_ccp
../../src-trunk/gcc/tree-ssa-ccp.c:2383
0xc6e0d4 execute
../../src-trunk/gcc/tree-ssa-ccp.c:2416
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with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
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specmake[3]: *** [output.o] Error 1
