[clang] [CUDA] Precommit test for VTable codegen (PR #124983)

[Anshil Gandhi via cfe-commits]

https://github.com/gandhi56 updated https://github.com/llvm/llvm-project/pull/124983

>From 0e2317ae0ef1377bc461e7e461bf3b699d75014d Mon Sep 17 00:00:00 2001
From: Anshil Gandhi <Anshil.Gandhi at amd.com>
Date: Tue, 28 Jan 2025 18:04:44 -0600
Subject: [PATCH 1/2] [CUDA] Precommit test for VTable codegen

---
 .../CodeGenCUDA/increment-index-for-thunks.cu | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 clang/test/CodeGenCUDA/increment-index-for-thunks.cu

diff --git a/clang/test/CodeGenCUDA/increment-index-for-thunks.cu b/clang/test/CodeGenCUDA/increment-index-for-thunks.cu
new file mode 100644
index 00000000000000..65c929ad4ce706
--- /dev/null
+++ b/clang/test/CodeGenCUDA/increment-index-for-thunks.cu
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 -fcuda-is-device -triple amdgcn-amd-amdhsa -target-cpu gfx942 \
+// RUN:   -emit-llvm -xhip %s -o - | FileCheck %s
+
+// CHECK: @_ZTV1C = linkonce_odr unnamed_addr addrspace(1) constant { [5 x ptr addrspace(1)], [4 x ptr addrspace(1)] } { [5 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1B2f2Ev to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1C2f1Ev to ptr addrspace(1))], [4 x ptr addrspace(1)] [ptr addrspace(1) inttoptr (i64 -8 to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1C2f1Ev to ptr addrspace(1))] }, comdat, align 8
+// CHECK: @_ZTV1B = linkonce_odr unnamed_addr addrspace(1) constant { [3 x ptr addrspace(1)] } { [3 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1B2f2Ev to ptr addrspace(1))] }, comdat, align 8
+// CHECK: @_ZTV1A = linkonce_odr unnamed_addr addrspace(1) constant { [4 x ptr addrspace(1)] } { [4 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @__cxa_pure_virtual to ptr addrspace(1))] }, comdat, align 8
+// CHECK: @__hip_cuid_ = addrspace(1) global i8 0
+// CHECK: @llvm.compiler.used = appending addrspace(1) global [1 x ptr] [ptr addrspacecast (ptr addrspace(1) @__hip_cuid_ to ptr)], section "llvm.metadata"
+// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
+
+struct A {
+  __attribute__((device)) A() { }
+  virtual void neither_device_nor_host_f() = 0 ;
+  __attribute__((device)) virtual void f1() = 0;
+ 
+};
+ 
+struct B {
+  __attribute__((device)) B() { }
+  __attribute__((device)) virtual void f2() { };
+};
+ 
+struct C : public B, public A {
+  __attribute__((device)) C() : B(), A() { }
+ 
+   virtual void neither_device_nor_host_f() override { }
+  __attribute__((device)) virtual void f1() override { }
+ 
+};
+ 
+__attribute__((device)) void test() {
+  C obj;
+}

>From 96111e075df61e6e137f0f0c9c6b2aaefb5beca2 Mon Sep 17 00:00:00 2001
From: Anshil Gandhi <Anshil.Gandhi at amd.com>
Date: Wed, 29 Jan 2025 15:06:45 -0600
Subject: [PATCH 2/2] - Test for SPIRV codegen as well

---
 .../CodeGenCUDA/increment-index-for-thunks.cu | 22 +++++++++++++------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/clang/test/CodeGenCUDA/increment-index-for-thunks.cu b/clang/test/CodeGenCUDA/increment-index-for-thunks.cu
index 65c929ad4ce706..c4ad064f4d938c 100644
--- a/clang/test/CodeGenCUDA/increment-index-for-thunks.cu
+++ b/clang/test/CodeGenCUDA/increment-index-for-thunks.cu
@@ -1,12 +1,20 @@
 // RUN: %clang_cc1 -fcuda-is-device -triple amdgcn-amd-amdhsa -target-cpu gfx942 \
-// RUN:   -emit-llvm -xhip %s -o - | FileCheck %s
+// RUN:   -emit-llvm -xhip %s -o - | FileCheck %s --check-prefix=GCN
+// RUN: %clang_cc1 -fcuda-is-device -triple spirv64-amd-amdhsa \
+// RUN:   -emit-llvm -xhip %s -o - | FileCheck %s --check-prefix=SPIRV
 
-// CHECK: @_ZTV1C = linkonce_odr unnamed_addr addrspace(1) constant { [5 x ptr addrspace(1)], [4 x ptr addrspace(1)] } { [5 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1B2f2Ev to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1C2f1Ev to ptr addrspace(1))], [4 x ptr addrspace(1)] [ptr addrspace(1) inttoptr (i64 -8 to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1C2f1Ev to ptr addrspace(1))] }, comdat, align 8
-// CHECK: @_ZTV1B = linkonce_odr unnamed_addr addrspace(1) constant { [3 x ptr addrspace(1)] } { [3 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1B2f2Ev to ptr addrspace(1))] }, comdat, align 8
-// CHECK: @_ZTV1A = linkonce_odr unnamed_addr addrspace(1) constant { [4 x ptr addrspace(1)] } { [4 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @__cxa_pure_virtual to ptr addrspace(1))] }, comdat, align 8
-// CHECK: @__hip_cuid_ = addrspace(1) global i8 0
-// CHECK: @llvm.compiler.used = appending addrspace(1) global [1 x ptr] [ptr addrspacecast (ptr addrspace(1) @__hip_cuid_ to ptr)], section "llvm.metadata"
-// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
+// GCN: @_ZTV1C = linkonce_odr unnamed_addr addrspace(1) constant { [5 x ptr addrspace(1)], [4 x ptr addrspace(1)] } { [5 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1B2f2Ev to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1C2f1Ev to ptr addrspace(1))], [4 x ptr addrspace(1)] [ptr addrspace(1) inttoptr (i64 -8 to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1C2f1Ev to ptr addrspace(1))] }, comdat, align 8
+// GCN: @_ZTV1B = linkonce_odr unnamed_addr addrspace(1) constant { [3 x ptr addrspace(1)] } { [3 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @_ZN1B2f2Ev to ptr addrspace(1))] }, comdat, align 8
+// GCN: @_ZTV1A = linkonce_odr unnamed_addr addrspace(1) constant { [4 x ptr addrspace(1)] } { [4 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr @__cxa_pure_virtual to ptr addrspace(1))] }, comdat, align 8
+// GCN: @__hip_cuid_ = addrspace(1) global i8 0
+// GCN: @llvm.compiler.used = appending addrspace(1) global [1 x ptr] [ptr addrspacecast (ptr addrspace(1) @__hip_cuid_ to ptr)], section "llvm.metadata"
+// GCN: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
+
+// SPIRV: @_ZTV1C = linkonce_odr unnamed_addr addrspace(1) constant { [5 x ptr addrspace(1)], [4 x ptr addrspace(1)] } { [5 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr addrspace(4) @_ZN1B2f2Ev to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr addrspace(4) @_ZN1C2f1Ev to ptr addrspace(1))], [4 x ptr addrspace(1)] [ptr addrspace(1) inttoptr (i64 -8 to ptr addrspace(1)), ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr addrspace(4) @_ZN1C2f1Ev to ptr addrspace(1))] }, comdat, align 8
+// SPIRV: @_ZTV1B = linkonce_odr unnamed_addr addrspace(1) constant { [3 x ptr addrspace(1)] } { [3 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr addrspace(4) @_ZN1B2f2Ev to ptr addrspace(1))] }, comdat, align 8
+// SPIRV: @_ZTV1A = linkonce_odr unnamed_addr addrspace(1) constant { [4 x ptr addrspace(1)] } { [4 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) null, ptr addrspace(1) addrspacecast (ptr addrspace(4) @__cxa_pure_virtual to ptr addrspace(1))] }, comdat, align 8
+// SPIRV: @__hip_cuid_ = addrspace(1) global i8 0
+// SPIRV: @llvm.compiler.used = appending addrspace(1) global [1 x ptr addrspace(4)] [ptr addrspace(4) addrspacecast (ptr addrspace(1) @__hip_cuid_ to ptr addrspace(4))], section "llvm.metadata"
 
 struct A {
   __attribute__((device)) A() { }