http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51606
Bug #: 51606
Summary: [4.7 Regression] FAIL: gcc.dg/vect/pr51015.c (internal
compiler error) on ppc*-*-*
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected], [email protected],
[email protected]
Host: ppc*-*-*
Target: ppc*-*-*
Build: ppc*-*-*
Between revisions 182355 (OK, see
http://gcc.gnu.org/ml/gcc-testresults/2011-12/msg01667.html) and 182398 the
following tests have started to fail (see
http://gcc.gnu.org/ml/gcc-testresults/2011-12/msg01781.html )
FAIL: gcc.dg/vshift-1.c (internal compiler error)
FAIL: gcc.dg/vshift-1.c (test for excess errors)
WARNING: gcc.dg/vshift-1.c compilation failed to produce executable
FAIL: gcc.dg/vect/pr51015.c (internal compiler error)
FAIL: gcc.dg/vect/pr51015.c (test for excess errors)
FAIL: gcc.dg/vect/pr51015.c -flto (internal compiler error)
FAIL: gcc.dg/vect/pr51015.c -flto (test for excess errors)
AFAICT gcc.dg/vshift-1.c fails on powerpc-apple-darwin9 only.
The backtrace is
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x0000000c
flow_bb_inside_loop_p (loop=0x4288eb64, bb=0x0) at ../../work/gcc/cfgloop.c:776
776 source_loop = bb->loop_father;
(gdb) bt
#0 flow_bb_inside_loop_p (loop=0x4288eb64, bb=0x0) at
../../work/gcc/cfgloop.c:776
#1 0x00808d40 in vect_stmt_relevant_p (stmt=<value temporarily unavailable,
due to optimizations>, relevant=0xbfffd318, live_p=0xbfffd31c) at
../../work/gcc/tree-vect-stmts.c:260
#2 0x0080eae4 in vect_mark_stmts_to_be_vectorized (loop_vinfo=0x0) at
../../work/gcc/tree-vect-stmts.c:552
#3 0x00827260 in vect_analyze_loop (loop=0x993360) at
../../work/gcc/tree-vect-loop.c:1521
#4 0x008389b8 in vectorize_loops () at ../../work/gcc/tree-vectorizer.c:203
#5 0x005734d0 in execute_one_pass (pass=0x428d6144) at
../../work/gcc/passes.c:2079
#6 0x005738a8 in execute_pass_list (pass=0x428d6144) at
../../work/gcc/passes.c:2134
#7 execute_pass_list (pass=0xbb64c0) at ../../work/gcc/passes.c:2136
#8 execute_pass_list (pass=0xbb5d70) at ../../work/gcc/passes.c:2136
#9 0x006c85c8 in tree_rest_of_compilation (fndecl=0x428bbe00) at
../../work/gcc/tree-optimize.c:421
#10 0x00278e28 in cgraph_expand_function (node=0x428bbe00) at
../../work/gcc/cgraphunit.c:1818
#11 0x0027ae4c in cgraph_optimize () at ../../work/gcc/cgraphunit.c:1885
#12 0x0027b684 in cgraph_finalize_compilation_unit () at
../../work/gcc/cgraphunit.c:1327
#13 0x0001fdd4 in c_write_global_declarations () at
../../work/gcc/c-decl.c:10026
#14 0x00635cf4 in toplev_main (argc=3, argv=0x4288e6c0) at
../../work/gcc/toplev.c:573
#15 0x00001c34 in start ()
