1 files changed, 131 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InferAddressSpaces/AMDGPU/basic.ll b/llvm/test/Transforms/InferAddressSpaces/AMDGPU/basic.ll
new file mode 100644
index 00000000000..4f938413d73
--- /dev/null
+++ b/llvm/test/Transforms/InferAddressSpaces/AMDGPU/basic.ll
@@ -0,0 +1,131 @@
+; RUN: opt -S -mtriple=amdgcn-amd-amdhsa -infer-address-spaces %s | FileCheck %s
+
+; Trivial optimization of generic addressing
+
+; CHECK-LABEL: @load_global_from_flat(
+; CHECK-NEXT: %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(1)*
+; CHECK-NEXT: %tmp1 = load float, float addrspace(1)* %tmp0
+; CHECK-NEXT: ret float %tmp1
+define float @load_global_from_flat(float addrspace(4)* %generic_scalar) #0 {
+  %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(1)*
+  %tmp1 = load float, float addrspace(1)* %tmp0
+  ret float %tmp1
+}
+
+; CHECK-LABEL: @load_constant_from_flat(
+; CHECK-NEXT: %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(2)*
+; CHECK-NEXT: %tmp1 = load float, float addrspace(2)* %tmp0
+; CHECK-NEXT: ret float %tmp1
+define float @load_constant_from_flat(float addrspace(4)* %generic_scalar) #0 {
+  %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(2)*
+  %tmp1 = load float, float addrspace(2)* %tmp0
+  ret float %tmp1
+}
+
+; CHECK-LABEL: @load_group_from_flat(
+; CHECK-NEXT: %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(3)*
+; CHECK-NEXT: %tmp1 = load float, float addrspace(3)* %tmp0
+; CHECK-NEXT: ret float %tmp1
+define float @load_group_from_flat(float addrspace(4)* %generic_scalar) #0 {
+  %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(3)*
+  %tmp1 = load float, float addrspace(3)* %tmp0
+  ret float %tmp1
+}
+
+; CHECK-LABEL: @load_private_from_flat(
+; CHECK-NEXT: %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float*
+; CHECK-NEXT: %tmp1 = load float, float* %tmp0
+; CHECK-NEXT: ret float %tmp1
+define float @load_private_from_flat(float addrspace(4)* %generic_scalar) #0 {
+  %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float*
+  %tmp1 = load float, float* %tmp0
+  ret float %tmp1
+}
+
+; CHECK-LABEL: @store_global_from_flat(
+; CHECK-NEXT: %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(1)*
+; CHECK-NEXT: store float 0.000000e+00, float addrspace(1)* %tmp0
+define void @store_global_from_flat(float addrspace(4)* %generic_scalar) #0 {
+  %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(1)*
+  store float 0.0, float addrspace(1)* %tmp0
+  ret void
+}
+
+; CHECK-LABEL: @store_group_from_flat(
+; CHECK-NEXT: %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(3)*
+; CHECK-NEXT: store float 0.000000e+00, float addrspace(3)* %tmp0
+define void @store_group_from_flat(float addrspace(4)* %generic_scalar) #0 {
+  %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float addrspace(3)*
+  store float 0.0, float addrspace(3)* %tmp0
+  ret void
+}
+
+; CHECK-LABEL: @store_private_from_flat(
+; CHECK-NEXT: %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float*
+; CHECK-NEXT: store float 0.000000e+00, float* %tmp0
+define void @store_private_from_flat(float addrspace(4)* %generic_scalar) #0 {
+  %tmp0 = addrspacecast float addrspace(4)* %generic_scalar to float*
+  store float 0.0, float* %tmp0
+  ret void
+}
+
+; optimized to global load/store.
+; CHECK-LABEL: @load_store_global(
+; CHECK-NEXT: %val = load i32, i32 addrspace(1)* %input, align 4
+; CHECK-NEXT: store i32 %val, i32 addrspace(1)* %output, align 4
+; CHECK-NEXT: ret void
+define void @load_store_global(i32 addrspace(1)* nocapture %input, i32 addrspace(1)* nocapture %output) #0 {
+  %tmp0 = addrspacecast i32 addrspace(1)* %input to i32 addrspace(4)*
+  %tmp1 = addrspacecast i32 addrspace(1)* %output to i32 addrspace(4)*
+  %val = load i32, i32 addrspace(4)* %tmp0, align 4
+  store i32 %val, i32 addrspace(4)* %tmp1, align 4
+  ret void
+}
+
+; Optimized to group load/store.
+; CHECK-LABEL: @load_store_group(
+; CHECK-NEXT: %val = load i32, i32 addrspace(3)* %input, align 4
+; CHECK-NEXT: store i32 %val, i32 addrspace(3)* %output, align 4
+; CHECK-NEXT: ret void
+define void @load_store_group(i32 addrspace(3)* nocapture %input, i32 addrspace(3)* nocapture %output) #0 {
+  %tmp0 = addrspacecast i32 addrspace(3)* %input to i32 addrspace(4)*
+  %tmp1 = addrspacecast i32 addrspace(3)* %output to i32 addrspace(4)*
+  %val = load i32, i32 addrspace(4)* %tmp0, align 4
+  store i32 %val, i32 addrspace(4)* %tmp1, align 4
+  ret void
+}
+
+; Optimized to private load/store.
+; CHECK-LABEL: @load_store_private(
+; CHECK-NEXT: %val = load i32, i32* %input, align 4
+; CHECK-NEXT: store i32 %val, i32* %output, align 4
+; CHECK-NEXT: ret void
+define void @load_store_private(i32* nocapture %input, i32* nocapture %output) #0 {
+  %tmp0 = addrspacecast i32* %input to i32 addrspace(4)*
+  %tmp1 = addrspacecast i32* %output to i32 addrspace(4)*
+  %val = load i32, i32 addrspace(4)* %tmp0, align 4
+  store i32 %val, i32 addrspace(4)* %tmp1, align 4
+  ret void
+}
+
+; No optimization. flat load/store.
+; CHECK-LABEL: @load_store_flat(
+; CHECK-NEXT: %val = load i32, i32 addrspace(4)* %input, align 4
+; CHECK-NEXT: store i32 %val, i32 addrspace(4)* %output, align 4
+; CHECK-NEXT: ret void
+define void @load_store_flat(i32 addrspace(4)* nocapture %input, i32 addrspace(4)* nocapture %output) #0 {
+  %val = load i32, i32 addrspace(4)* %input, align 4
+  store i32 %val, i32 addrspace(4)* %output, align 4
+  ret void
+}
+
+; CHECK-LABEL: @store_addrspacecast_ptr_value(
+; CHECK: %cast = addrspacecast i32 addrspace(1)* %input to i32 addrspace(4)*
+; CHECK-NEXT: store i32 addrspace(4)* %cast, i32 addrspace(4)* addrspace(1)* %output, align 4
+define void @store_addrspacecast_ptr_value(i32 addrspace(1)* nocapture %input, i32 addrspace(4)* addrspace(1)* nocapture %output) #0 {
+  %cast = addrspacecast i32 addrspace(1)* %input to i32 addrspace(4)*
+  store i32 addrspace(4)* %cast, i32 addrspace(4)* addrspace(1)* %output, align 4
+  ret void
+}
+
+attributes #0 = { nounwind }