[llvm] [SPIRV] Add support for CodeSectionINTEL storage class in legalizer (PR #167961)

[Nick Sarnie via llvm-commits]

================
@@ -0,0 +1,34 @@
+; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv64-intel --spirv-ext=+SPV_INTEL_function_pointers %s -o - | FileCheck %s
+; TODO: %if spirv-tools %{ llc -O0 -mtriple=spirv64-intel %s -o - -filetype=obj | spirv-val %}
+
+; CHECK-DAG: OpCapability FunctionPointersINTEL
+; CHECK: OpExtension "SPV_INTEL_function_pointers"
+
+; CHECK: OpName %[[F1:.*]] "f1"
+; CHECK: OpName %[[F2:.*]] "f2"
+
+; CHECK: %[[TyBool:.*]] = OpTypeBool
+
+; CHECK %[[F1Ptr:.*]] = OpConstantFunctionPointerINTEL %{{.*}} %[[F2]]
+; CHECK %[[F2Ptr:.*]] = OpConstantFunctionPointerINTEL %{{.*}} %[[F2]]
+
+; CHECK OpPtrEqual %[[TyBool]] %[[F1Ptr]] %[[F2Ptr]]
+
+target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-n8:16:32:64-G1-P9-A0"
+target triple = "spirv64-intel"
+
+define spir_func void @f1() addrspace(9) {
+entry:
+  ret void
+}
+
+define spir_func void @f2() addrspace(9) {
+entry:
+  ret void
+}
+
+define spir_kernel void @foo() addrspace(9) {
+entry:
+  %a = icmp eq ptr addrspace(9) @f1, @f2
+  ret void
----------------
sarnex wrote:

Thanks, reworked the test in my latest commit, hopefully it's better now.

https://github.com/llvm/llvm-project/pull/167961