[llvm] [SPIR-V] Fix crash on vector-typed GEPs in SPIRVEmitIntrinsics (PR #197101)

[Arseniy Obolenskiy via llvm-commits]

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@@ -0,0 +1,53 @@
+; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv64-unknown-unknown --spirv-ext=+SPV_INTEL_masked_gather_scatter %s -o - | FileCheck %s
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aobolensk wrote:

On the commit before I get this issue for 2x and 4x cases:
```
# .---command stderr------------
# | error: line 54: The Result Type of OpPtrAccessChain <id> '26[%26]' must be OpTypePointer. Found OpTypeVector.
# |   %26 = OpPtrAccessChain %v2_ptr_CrossWorkgroup_uchar %p_0 %12
# | 
# `-----------------------------
```
And yes, you're right that the original issue error is not reproducible as is anymore. Here in this patch we're enabling the complete check for these cases where we have more than 1 element as described in the original issue

https://github.com/llvm/llvm-project/pull/197101