tree 274ab4e22e8294e2fcfb886c931c4f79c5a10da7
parent 372e75503c1dc9a38d9978aa6b67631283d5d6dd
author Ian Lance Taylor <iant@golang.org> 1497472211 -0700
committer Ian Lance Taylor <iant@golang.org> 1497483678 +0000

compiler: avoid crash on erroneous type

If there is an error constructing the backend type, the GCC backend
will report that the size is 1.  That will then cause construction of
the ptrmask to crash.  Avoid that case by just generating an empty
ptrmask.

Noticed while compiling a broken package.  The policy I've been
following is to not commit a test case for a compiler crash on invalid
code, so no test case.

Change-Id: Ied85154d9d49012be9d693c4488a077c214efb7e
Reviewed-on: https://go-review.googlesource.com/45775
Reviewed-by: Than McIntosh <thanm@google.com>