[Bug sanitizer/88619] New: [9 Regression] ICE in asan_emit_stack_protection, at asan.c:1574 since r266664

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88619

            Bug ID: 88619
           Summary: [9 Regression] ICE in asan_emit_stack_protection, at
                    asan.c:1574 since r266664
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at gcc dot gnu.org
  Target Milestone: ---

Following is causing ICE:

$ gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/stackalign/vararg-2.c
-fsanitize=address -fstack-protector
during RTL pass: expand
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/stackalign/vararg-2.c:
In function ‘test’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/torture/stackalign/vararg-2.c:23:1:
internal compiler error: in asan_emit_stack_protection, at asan.c:1574
   23 | test (va_list arg)
      | ^~~~
0x696226 asan_emit_stack_protection(rtx_def*, rtx_def*, unsigned int, long*,
tree_node**, int)
        /home/marxin/Programming/gcc/gcc/asan.c:1574
0x8e72bd expand_used_vars
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:2282
0x8e8aab execute
        /home/marxin/Programming/gcc/gcc/cfgexpand.c:6369
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
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