tree 6bd12e609577aaba62cc08f4f62e475a0638f3e3
parent fec56146a76ba0664b4e65394319f329ba161fe9
author Antoni Karpiński <antonikarp@google.com> 1601144321 +0200
committer GitHub <noreply@github.com> 1601144321 +0100
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spirv-fuzz: Fix bug in TransformationDuplicateRegionWithSelection (#3819)

The following changes are introduced:

1. Entry block might have more than one predecessor, even if it is not
   a selection/loop merge block. However Apply method asserts that
   there is only one predecessor. Now, IsApplicable method ensures
   that there is only one predecessor.

2. In fuzzer pass we exclude both loop headers and selection headers
as potential exit blocks.

Fixes #3827.