[llvm] [SPIRV] Addition of image_store.ll and signed_arithmetic_overflow.ll (PR #152289)

[Michal Paszkowski via llvm-commits]

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@@ -0,0 +1,22 @@
+; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
+; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -filetype=obj | spirv-val %}
+
+; Image types may be represented in two ways while translating to SPIR-V:
+; - OpenCL form, for example, '%opencl.image2d_ro_t',
+; - SPIR-V form, for example, '%spirv.Image._void_1_0_0_0_0_0_0',
+; but it is still one type which should be translated to one SPIR-V type.
+;
+; The test checks that the code below is successfully translated and only one
+; SPIR-V type for images is generated.
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michalpaszkowski wrote:

```suggestion
; SPIR-V type for images is generated (no duplicate OpTypeImage instructions).
```

https://github.com/llvm/llvm-project/pull/152289