[Bug 111070] Processing of SPIR-V shader leads to segmentation fault

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111070

            Bug ID: 111070
           Summary: Processing of SPIR-V shader leads to segmentation
                    fault
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Vulkan/intel
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: afdx at google.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org
                CC: jason at jlekstrand.net

Created attachment 144706
  --> https://bugs.freedesktop.org/attachment.cgi?id=144706&action=edit
Amber test exposing the problem

Running the attached test using Amber (https://github.com/google/amber):

amber unreachable-loops-in-switch.amber

should lead to the test passing.

Instead, a segmentation fault occurs, with a backtrace starting in
libvulkan_intel.so.

Build: Mesa 19.2.0-devel (git-243db4980c) (Debug)
Device: Intel(R) HD Graphics 630 (Kaby Lake GT2)

Bug found using GraphicsFuzz.

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