[Mesa-dev] [Bug 109920] "NIR validation failed in internal shader" abort with all Vulkan test-cases

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109920

            Bug ID: 109920
           Summary: "NIR validation failed in internal shader" abort with
                    all Vulkan test-cases
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/Vulkan/radeon
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: eero.t.tamminen at intel.com
        QA Contact: mesa-dev at lists.freedesktop.org

Setup:
* KBL 8809G (HadesCanyon)
* Ubuntu 18.04
* drm-tip kernel, X server and Mesa built from Git
* Any Vulkan test

Test-case:
* Run Sacha Willems' Vulkan triangle test
  ./triangle

Expected outcome:
* Vulkan tests work with RADV, like they do with ANV

* Actual outcome:
---------------------------------
$ ./triangle 
NIR validation failed in internal shader
1 errors:
shader: MESA_SHADER_COMPUTE
name: meta_clear_htile_mask
local-size: 64, 1, 1
shared-size: 0
inputs: 0
outputs: 0
uniforms: 0
shared: 0
decl_function main (0 params)

impl main {
        block block_0:
        /* preds: */
        vec3 32 ssa_0 = intrinsic load_local_invocation_id () ()
        vec3 32 ssa_1 = intrinsic load_work_group_id () ()
        vec4 32 ssa_2 = load_const (0x00000040 /* 0.000000 */, 0x00000001 /*
0.000000 */, 0x00000001 /* 0.000000 */, 0x00000000 /* 0.000000 */)
        vec4 32 ssa_3 = imul ssa_1.xyzz, ssa_2
        vec4 32 ssa_4 = iadd ssa_3, ssa_0.xyzz
        vec1 32 ssa_5 = load_const (0x00000010 /* 0.000000 */)
        vec4 32 ssa_6 = imul ssa_4, ssa_5.xxxx
        vec1 32 ssa_7 = imov ssa_6.x
        vec1 32 ssa_8 = load_const (0x00000000 /* 0.000000 */)
        vec1 32 ssa_9 = intrinsic vulkan_resource_index (ssa_8) (0, 0, 0) /*
desc-set=0 */ /* binding=0 */ /* desc_type=sampler */
error: components_written > 0
(../../../../../source2/_repos/git___anongit_freedesktop_org_git_mesa_mesa/src/compiler/nir/nir_validate.c:569)

        vec1 32 ssa_10 = load_const (0x00000000 /* 0.000000 */)
        /* constants */ vec2 32 ssa_11 = intrinsic load_push_constant (ssa_10)
(0, 8) /* base=0 */ /* range=8 */
        vec4 32 ssa_12 = intrinsic load_ssbo (ssa_9, ssa_7) (0, 0, 0) /*
access=0 */ /* align_mul=0 */ /* align_offset=0 */
        vec1 32 ssa_13 = imov /* constants */ ssa_11.y
        vec4 32 ssa_14 = iand ssa_12, ssa_13.xxxx
        vec1 32 ssa_15 = imov /* constants */ ssa_11.x
        vec4 32 ssa_16 = ior ssa_14, ssa_15.xxxx
        intrinsic store_ssbo (ssa_16, ssa_9, ssa_7) (15, 0, 0, 0) /*
wrmask=xyzw */ /* access=0 */ /* align_mul=0 */ /* align_offset=0 */
        /* succs: block_1 */
        block block_1:
}

Aborted
---------------------------------

This has regressed within past day, between:
2019-03-04 17:33:17 610758d3e54027: egl/sl: also allow virtgpu to fallback to
kms_swrast
2019-03-05 16:06:50 43f40dc7cb234e: anv: Implement VK_EXT_inline_uniform_block

And it's still broken with Git tip.

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