amd, ci: Drop log level in SPIRV -> NIR code generator.

See 786fa3435c for the rationale of this variable, but the point is to
avoid many error reports for conformance conformance issues within the
VK-CTS shaders.

Acked-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Martin Roukala <martin.roukala@mupuf.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14660>

.gitlab-ci/common/generate-env.sh

@@ -79,6 +79,7 @@ for var in \
     MESA_IMAGE_TAG \
     MESA_TEMPLATES_COMMIT \
     MESA_VK_IGNORE_CONFORMANCE_WARNING \
+    MESA_SPIRV_LOG_LEVEL \
     MINIO_HOST \
     NIR_DEBUG \
     PAN_I_WANT_A_BROKEN_VULKAN_DRIVER \

src/amd/ci/gitlab-ci.yml

@@ -5,6 +5,12 @@
   variables:
     VK_DRIVER: radeon
     DRIVER_NAME: radv
+    # The SPIRV -> NIR code generator generates so many harmless
+    # warnings on the shaders in VK-CTS that jobs fail due to the log
+    # size getting too big. Since it doesn't seem feasible right now
+    # to fix these shaders in the CTS, instead, ignore warnings from
+    # the code generator.
+    MESA_SPIRV_LOG_LEVEL: error
     ACO_DEBUG: validateir,validatera
     MESA_VK_IGNORE_CONFORMANCE_WARNING: 1