[llvm-commits] [PATCH] Crash in SplitBlock with incomplete dominator information

[Nick Sumner]

Hi,

The attached patch fixes a crashing bug in SplitBlock when it is
called on a block with no dominator information even though dominators
were previously computed. This is originally from a bug report
(http://llvm.org/bugs/show_bug.cgi?id=10643), but I am cross-posting
to give it a record in the proper place until it can be committed.

One example of a program suffering from this:

#include <stdlib.h>
#include <stdio.h>

void foo() {
  exit(0);
  printf("No dominator info here\n");
}


thanks,
Nick Sumner
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