89 lines
3.5 KiB
LLVM
89 lines
3.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -S -mtriple=amdgcn-- -passes=amdgpu-lower-module-lds --amdgpu-lower-module-lds-strategy=hybrid < %s | FileCheck %s
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;; Reduced from a larger test case. Checks that functions and kernels that use only dynamic lds
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;; are lowered successfully. Previously they only worked if the kernel happened to also use static lds
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;; variables. Artefact of implementing dynamic variables by adapting existing code for static.
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@A = external addrspace(3) global [8 x ptr]
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@B = external addrspace(3) global [0 x i32]
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define amdgpu_kernel void @kernel_0() {
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; CHECK-LABEL: define amdgpu_kernel void @kernel_0
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; CHECK-SAME: () #[[ATTR0:[0-9]+]] {{.*}}.amdgcn.lds.kernel.id [[META1:![0-9]+]] {
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; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel.kernel_0.lds) ]
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; CHECK-NEXT: call void @call_store_A()
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; CHECK-NEXT: ret void
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;
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call void @call_store_A()
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ret void
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}
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define amdgpu_kernel void @kernel_1() {
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; CHECK-LABEL: define amdgpu_kernel void @kernel_1
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; CHECK-SAME: () {{.*}}.amdgcn.lds.kernel.id [[META2:![0-9]+]] {
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; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel_1.dynlds) ]
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; CHECK-NEXT: [[PTR:%.*]] = call ptr @get_B_ptr()
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; CHECK-NEXT: ret void
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;
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%ptr = call ptr @get_B_ptr()
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ret void
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}
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define amdgpu_kernel void @kernel_2() {
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; CHECK-LABEL: define amdgpu_kernel void @kernel_2
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; CHECK-SAME: () #[[ATTR0]] {{.*}}.amdgcn.lds.kernel.id [[META3:![0-9]+]] {
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; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel.kernel_2.lds) ]
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; CHECK-NEXT: call void @store_A()
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; CHECK-NEXT: ret void
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;
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call void @store_A()
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ret void
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}
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define amdgpu_kernel void @kernel_3() {
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; CHECK-LABEL: define amdgpu_kernel void @kernel_3
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; CHECK-SAME: () {{.*}}.amdgcn.lds.kernel.id [[META4:![0-9]+]] {
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; CHECK-NEXT: call void @llvm.donothing() [ "ExplicitUse"(ptr addrspace(3) @llvm.amdgcn.kernel_3.dynlds) ]
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; CHECK-NEXT: [[PTR:%.*]] = call ptr @get_B_ptr()
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; CHECK-NEXT: ret void
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;
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%ptr = call ptr @get_B_ptr()
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ret void
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}
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define private void @call_store_A() {
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; CHECK-LABEL: define private void @call_store_A() {
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; CHECK-NEXT: call void @store_A()
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; CHECK-NEXT: ret void
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;
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call void @store_A()
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ret void
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}
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define private void @store_A() {
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; CHECK-LABEL: define private void @store_A() {
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.amdgcn.lds.kernel.id()
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; CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [4 x [1 x ptr addrspace(3)]], ptr addrspace(4) @llvm.amdgcn.lds.offset.table, i32 0, i32 [[TMP1]], i32 0
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; CHECK-NEXT: [[A1:%.*]] = load ptr addrspace(3), ptr addrspace(4) [[A]], align 4
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; CHECK-NEXT: [[TMP3:%.*]] = addrspacecast ptr addrspace(3) [[A1]] to ptr
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; CHECK-NEXT: store ptr [[TMP3]], ptr null, align 8
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; CHECK-NEXT: ret void
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;
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store ptr addrspacecast (ptr addrspace(3) @A to ptr), ptr null
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ret void
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}
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define private ptr @get_B_ptr() {
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; CHECK-LABEL: define private ptr @get_B_ptr() {
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.amdgcn.lds.kernel.id()
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; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [4 x ptr addrspace(3)], ptr addrspace(4) @llvm.amdgcn.dynlds.offset.table, i32 0, i32 [[TMP1]]
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; CHECK-NEXT: [[B1:%.*]] = load ptr addrspace(3), ptr addrspace(4) [[B]], align 4
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; CHECK-NEXT: [[TMP3:%.*]] = addrspacecast ptr addrspace(3) [[B1]] to ptr
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; CHECK-NEXT: ret ptr [[TMP3]]
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;
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ret ptr addrspacecast (ptr addrspace(3) @B to ptr)
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}
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; CHECK: attributes #0 = { "amdgpu-lds-size"="64" }
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