nir: add printf_abort intrinsic

abort() for the gpu, implemented with the printf infrastructure since they go
together.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32564>

src/compiler/nir/nir_intrinsics.py

@@ -1281,6 +1281,13 @@ system_value("printf_buffer_address", 1, bit_sizes=[32,64])
 # single output buffer, it needs each shader to have its own base identifier
 # from which each printf is indexed.
 system_value("printf_base_identifier", 1, bit_sizes=[32])
+# Abort the program, triggering device fault. The invoking thread halts
+# immediately. Other threads eventually terminate.
+#
+# This does not take a payload, payloads should be specified with a preceding
+# printf. After lowering, the intrinsic will set an aborted? bit in the printf
+# buffer. This avoids a separate abort buffer.
+intrinsic("printf_abort")
 
 # Mesh shading MultiView intrinsics
 system_value("mesh_view_count", 1)