https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69108
Bug ID: 69108
Summary: ICE in gather_scalar_reductions with
-ftree-parallelize-loops=2
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
...
$ gcc -O2 src/gcc/testsuite/gcc.dg/graphite/interchange-2.c -S
-ftree-parallelize-loops=2
src/gcc/testsuite/gcc.dg/graphite/interchange-2.c: In function ‘foo.constprop’:
src/gcc/testsuite/gcc.dg/graphite/interchange-2.c:13:1: internal compiler
error: in as_a, at is-a.h:192
foo (int N, int *res)
^~~
0x89e14b gphi* as_a<gphi*, gimple>(gimple*)
/home/vries/gcc_versions/devel/src/gcc/is-a.h:192
0xfd7915 gather_scalar_reductions
/home/vries/gcc_versions/devel/src/gcc/tree-parloops.c:2477
0xfd7c4c try_create_reduction_list
/home/vries/gcc_versions/devel/src/gcc/tree-parloops.c:2549
0xfd8542 parallelize_loops
/home/vries/gcc_versions/devel/src/gcc/tree-parloops.c:2726
0xfd8835 execute
/home/vries/gcc_versions/devel/src/gcc/tree-parloops.c:2797
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.
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