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[Bug target/51354] New: [4.7 Regression] ICE in maybe_record_trace_start


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51354

             Bug #: 51354
           Summary: [4.7 Regression] ICE in maybe_record_trace_start
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: jakub@gcc.gnu.org
                CC: rth@gcc.gnu.org
            Target: x86_64-linux


extern void abort (void);

typedef int __attribute__((aligned (32))) ai;

void foo (int *x, ai *y);

int
bar (int x)
{
  if (x == 12346)
    return 24;
  ai i;
  foo (__builtin_alloca (x), &i);
  return 128;
}

ICEs in maybe_record_trace_start, at dwarf2cfi.c:2244
at -O2 on x86_64-linux.


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