[llvm] [SPIR-V] Add SPV_INTEL_2d_block_io extension (PR #140140)

[Yury Plyakhin via llvm-commits]

================
@@ -0,0 +1,47 @@
+; RUN: not llc -O0 -mtriple=spirv64-unknown-unknown %s -o %t.spvt 2>&1 | FileCheck %s --check-prefix=CHECK-ERROR
+; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv64-unknown-unknown --spirv-ext=+SPV_INTEL_2d_block_io %s -o - | FileCheck %s
+
----------------
YuriPlyakhin wrote:

I tried and test passed, so I added the line.

https://github.com/llvm/llvm-project/pull/140140