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[PATCH] Fix middle-end/38661, ICE in tree-switch-conversion with INT_MAX as the case statement

Hi,
  The problem here is that if we have INT_MAX as a case statement, pos
in build_constructors would wrap around which will cause an infinite
loop.
The fix is to change the loop into a do/while loop and look for the
wrapping case.

OK? Bootstrapped and tested on i386-darwin8.11 with no regressions.

Thanks,
Andrew Pinski

ChangeLog:
* tree-switch-conversion.c (build_constructors): Test for wrapping of pos case.


* gcc.c-torture/compile/pr38661.c: New testcase.
* gcc.c-torture/compile/pr38661-1.c: New testcase.

Attachment: fixPR38661.diff.txt
Description: Text document

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