Fix reverse translation for a decoration applied to a function parameter (#2232)

This fixes reverse translation for SPV_INTEL_fpga_memory_accesses.
Theoretically it fixes more, but seems like without the extension we
don't generate UserSemantic decoration in this case at all. Will
be investigated separately.

Signed-off-by: Sidorov, Dmitry <dmitry.sidorov@intel.com>

Original commit:
KhronosGroup/SPIRV-LLVM-Translator@ef0165a

Author: MrSidims

llvm-spirv/lib/SPIRV/SPIRVReader.cpp

@@ -2353,9 +2353,12 @@ Value *SPIRVToLLVM::transValueWithoutDecoration(SPIRVValue *BV, Function *F,
 
   case OpFunctionCall: {
     SPIRVFunctionCall *BC = static_cast<SPIRVFunctionCall *>(BV);
-    auto *Call = CallInst::Create(transFunction(BC->getFunction()),
-                                  transValue(BC->getArgumentValues(), F, BB),
+    std::vector<Value *> Args = transValue(BC->getArgumentValues(), F, BB);
+    auto *Call = CallInst::Create(transFunction(BC->getFunction()), Args,
                                   BC->getName(), BB);
+    for (auto *Arg : Args)
+      if (Arg->getType()->isPointerTy())
+        replaceOperandWithAnnotationIntrinsicCallResult(F, Arg);
     setCallingConv(Call);
     setAttrByCalledFunc(Call);
     return mapValue(BV, Call);

llvm-spirv/test/extensions/INTEL/SPV_INTEL_fpga_memory_accesses/fpga_lsu_function_call.ll

@@ -0,0 +1,46 @@
+; RUN: llvm-as %s -o %t.bc
+; RUN: llvm-spirv %t.bc --spirv-ext=+SPV_INTEL_fpga_memory_accesses -o %t.spv
+; RUN: llvm-spirv %t.spv -to-text -o - | FileCheck %s --check-prefix=CHECK-SPIRV
+
+; RUN: llvm-spirv -r %t.spv -o %t.rev.bc
+; RUN: llvm-dis < %t.rev.bc | FileCheck %s --check-prefix=CHECK-LLVM
+
+; CHECK-SPIRV-DAG: Capability FPGAMemoryAccessesINTEL
+; CHECK-SPIRV-DAG: Extension "SPV_INTEL_fpga_memory_accesses"
+; CHECK-SPIRV: Decorate [[#DecTarget:]] BurstCoalesceINTEL
+; CHECK-SPIRV: FunctionCall [[#]] [[#DecTarget]]
+
+; CHECK-LLVM: [[#GV:]] = private unnamed_addr constant [11 x i8] c"{params:1}\00"
+; CHECK-LLVM: %[[Call:[a-z0-9_.]+]] = call spir_func ptr addrspace(4) @accessor
+; CHECK-LLVM: %[[#Ann:]] = call ptr addrspace(4) @llvm.ptr.annotation.p4.p0(ptr addrspace(4) %call, ptr @[[#GV]], ptr undef, i32 undef, ptr undef)
+; CHECK-LLVM: call spir_func ptr addrspace(4) @_ZN8MyStructaSERKS_(ptr addrspace(4) %[[#Ann]]
+
+; ModuleID = 'test.bc'
+source_filename = "llvm-link"
+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"
+target triple = "spir64-unknown-unknown"
+
+%struct.MyStruct = type { i32 }
+
+$_ZN8MyStructaSERKS_ = comdat any
+
+$accessor = comdat any
+
+@.str.1 = private unnamed_addr addrspace(1) constant [14 x i8] c"<invalid loc>\00", section "llvm.metadata"
+@.str.2 = private unnamed_addr addrspace(1) constant [11 x i8] c"{params:1}\00", section "llvm.metadata"
+
+define spir_func void @foo(ptr %Ptr, ptr byval(%struct.MyStruct) align 4 %Val) {
+entry:
+  %Ptr.ascast = addrspacecast ptr %Ptr to ptr addrspace(4)
+  %Val.ascast = addrspacecast ptr %Val to ptr addrspace(4)
+  %call = call spir_func noundef ptr addrspace(4) @accessor(ptr addrspace(4) %Ptr.ascast)
+  %0 = call ptr addrspace(4) @llvm.ptr.annotation.p4.p1(ptr addrspace(4) %call, ptr addrspace(1) @.str.2, ptr addrspace(1) @.str.1, i32 0, ptr addrspace(1) null)
+  %call1 = call spir_func ptr addrspace(4) @_ZN8MyStructaSERKS_(ptr addrspace(4) %0, ptr addrspace(4) %Val.ascast)
+  ret void
+}
+
+declare ptr addrspace(4) @llvm.ptr.annotation.p4.p1(ptr addrspace(4), ptr addrspace(1), ptr addrspace(1), i32, ptr addrspace(1))
+
+declare spir_func ptr addrspace(4) @_ZN8MyStructaSERKS_(ptr addrspace(4) %this, ptr addrspace(4) %op)
+
+declare spir_func ptr addrspace(4) @accessor(ptr addrspace(4) %this)