https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81373
Bug ID: 81373
Summary: [7/8 Regression] Graphite ICE in ssa_default_def at
gcc/tree-dfa.c:305
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Target Milestone: ---
Following fails starting with r239357:
$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/graphite/scop-2.c
-fno-tree-scev-cprop -fgraphite-identity -O1
during GIMPLE pass: graphite
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/graphite/scop-2.c: In
function ‘toto’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/graphite/scop-2.c:3:5:
internal compiler error: Segmentation fault
int toto()
^~~~
0xbd4e9f crash_signal
../../gcc/toplev.c:338
0xc2bb67 ssa_default_def(function*, tree_node*)
../../gcc/tree-dfa.c:305
0xc2e400 get_or_create_ssa_default_def(function*, tree_node*)
../../gcc/tree-dfa.c:362
0xc66dc3 get_reaching_def
../../gcc/tree-into-ssa.c:1227
0xc677a5 rewrite_update_phi_arguments
../../gcc/tree-into-ssa.c:2111
0xc677a5 rewrite_update_dom_walker::before_dom_children(basic_block_def*)
../../gcc/tree-into-ssa.c:2231
0x1395d43 dom_walker::walk(basic_block_def*)
../../gcc/domwalk.c:265
0xc6395f rewrite_blocks
../../gcc/tree-into-ssa.c:2288
0xc6c71c update_ssa(unsigned int)
../../gcc/tree-into-ssa.c:3463
0x13d267c graphite_regenerate_ast_isl(scop*)
../../gcc/graphite-isl-ast-to-gimple.c:3051
0x13c8ed8 graphite_transform_loops()
../../gcc/graphite.c:344
0x13c9820 graphite_transforms
../../gcc/graphite.c:376
0x13c9820 execute
../../gcc/graphite.c:453
