[Bug tree-optimization/63666] [5.0 regression] FAIL: gcc.dg/vect/pr45752.c (internal compiler error)

[jiwang at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63666

--- Comment #8 from Jiong Wang <jiwang at gcc dot gnu.org> ---
Created attachment 33839
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33839&action=edit
vshuf-v16hi.i

Richard,

  after your fix, the issue still exist on arm-none-eabi. testcase attached.

  cc1 built by (../gcc/configure --target=arm-none-eabi
--enable-languages=c,c++)

./cc1 -mcpu=cortex-a9 -mfloat-abi=softfp -mfpu=neon vshuf-v16hi.i -Os

Breakpoint 1, fancy_abort (file=0x1492484 "../../gcc/gcc/gcse.c", line=2153,
function=0x1492df0 "process_insert_insn") at ../../gcc/gcc/diagnostic.c:1232
1232      internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) bt
#0  fancy_abort (file=0x1492484 "../../gcc/gcc/gcse.c", line=2153,
function=0x1492df0 "process_insert_insn") at ../../gcc/gcc/diagnostic.c:1232
#1  0x000000000096b680 in process_insert_insn (expr=0x1db2800) at
../../gcc/gcc/gcse.c:2153
#2  0x000000000096b6da in insert_insn_end_basic_block (expr=0x1db2800,
bb=0x7ffff6e13dd0) at ../../gcc/gcc/gcse.c:2175
#3  0x000000000096e03f in hoist_code () at ../../gcc/gcc/gcse.c:3471
#4  0x000000000096ea94 in one_code_hoisting_pass () at
../../gcc/gcc/gcse.c:3701
#5  0x000000000096f999 in execute_rtl_hoist () at ../../gcc/gcc/gcse.c:4191
#6  0x000000000096fae9 in (anonymous namespace)::pass_rtl_hoist::execute
(this=0x1cecca0) at ../../gcc/gcc/gcse.c:4272
#7  0x0000000000b4f445 in execute_one_pass (pass=0x1cecca0) at
../../gcc/gcc/passes.c:2156
#8  0x0000000000b4f684 in execute_pass_list_1 (pass=0x1cecca0) at
../../gcc/gcc/passes.c:2208
#9  0x0000000000b4f6b5 in execute_pass_list_1 (pass=0x1cec8e0) at
../../gcc/gcc/passes.c:2209
#10 0x0000000000b4f6f7 in execute_pass_list (fn=0x7ffff6bca1f8, pass=0x1ce97c0)
at ../../gcc/gcc/passes.c:2219
#11 0x00000000007d9aa8 in cgraph_node::expand (this=0x7ffff6bcd000) at
../../gcc/gcc/cgraphunit.c:1742
#12 0x00000000007da0c7 in expand_all_functions () at
../../gcc/gcc/cgraphunit.c:1878
#13 0x00000000007dac0d in symbol_table::compile (this=0x7ffff6c74000) at
../../gcc/gcc/cgraphunit.c:2213
#14 0x00000000007dadc4 in symbol_table::finalize_compilation_unit
(this=0x7ffff6c74000) at ../../gcc/gcc/cgraphunit.c:2290
#15 0x000000000063572d in c_write_global_declarations () at
../../gcc/gcc/c/c-decl.c:10641
#16 0x0000000000c489fc in compile_file () at ../../gcc/gcc/toplev.c:574
#17 0x0000000000c4ad22 in do_compile () at ../../gcc/gcc/toplev.c:1981
#18 0x0000000000c4af2c in toplev::main (this=0x7fffffffe55f, argc=6,
argv=0x7fffffffe658) at ../../gcc/gcc/toplev.c:2078
#19 0x00000000013a02b2 in main (argc=6, argv=0x7fffffffe658) at
../../gcc/gcc/main.c:38