| ; RUN: opt -S -mtriple=amdgcn-- -amdgpu-lower-module-lds < %s | FileCheck %s |
| ; RUN: opt -S -mtriple=amdgcn-- -passes=amdgpu-lower-module-lds < %s | FileCheck %s |
| |
| ;. |
| ; Kernel LDS lowering. |
| ;. |
| ; @lds.1: is part of @llvm.used list, and also it is used within kernel, hence it is lowered. |
| ; @lds.2: is part of @llvm.compiler.used list, and also it is used within kernel, hence it is lowered. |
| ; @lds.3: is used as initializer to @gptr.3, hence @lds.3 is not lowered, though it is used within kernel. |
| ; @lds.4: is used as initializer to @gptr.4, hence @lds.4 is not lowered, though it is used within kernel, |
| ; irrespective of the uses of @gptr.4 itself ( @gptr.4 is part of llvm.compiler.used list ). |
| ; @lds.5: is part of @llvm.used list, but is not used within kernel, hence it is not lowered. |
| ; @lds.6: is part of @llvm.compiler.used list, but is not used within kernel, hence it is not lowered. |
| ;. |
| |
| ; CHECK: %llvm.amdgcn.kernel.k0.lds.t = type { i32, i16 } |
| |
| ; CHECK-NOT: @lds.1 |
| ; CHECK-NOT: @lds.2 |
| ; CHECK: @lds.3 = addrspace(3) global i64 undef, align 8 |
| ; CHECK: @lds.4 = addrspace(3) global float undef, align 4 |
| ; CHECK: @lds.5 = addrspace(3) global i16 undef, align 2 |
| ; CHECK: @lds.6 = addrspace(3) global i32 undef, align 4 |
| @lds.1 = addrspace(3) global i16 undef, align 2 |
| @lds.2 = addrspace(3) global i32 undef, align 4 |
| @lds.3 = addrspace(3) global i64 undef, align 8 |
| @lds.4 = addrspace(3) global float undef, align 4 |
| @lds.5 = addrspace(3) global i16 undef, align 2 |
| @lds.6 = addrspace(3) global i32 undef, align 4 |
| |
| ; CHECK: @gptr.3 = addrspace(1) global i64* addrspacecast (i64 addrspace(3)* @lds.3 to i64*), align 8 |
| ; CHECK: @gptr.4 = addrspace(1) global i64* addrspacecast (i64 addrspace(3)* bitcast (float addrspace(3)* @lds.4 to i64 addrspace(3)*) to i64*), align 8 |
| @gptr.3 = addrspace(1) global i64* addrspacecast (i64 addrspace(3)* @lds.3 to i64*), align 8 |
| @gptr.4 = addrspace(1) global i64* addrspacecast (float addrspace(3)* @lds.4 to i64*), align 8 |
| |
| ; CHECK: @llvm.amdgcn.kernel.k0.lds = internal addrspace(3) global %llvm.amdgcn.kernel.k0.lds.t undef, align 4 |
| |
| ; CHECK: @llvm.used = appending global [1 x i8*] [i8* addrspacecast (i8 addrspace(3)* bitcast (i16 addrspace(3)* @lds.5 to i8 addrspace(3)*) to i8*)], section "llvm.metadata" |
| ; CHECK: @llvm.compiler.used = appending global [2 x i8*] [i8* addrspacecast (i8 addrspace(1)* bitcast (i64* addrspace(1)* @gptr.4 to i8 addrspace(1)*) to i8*), i8* addrspacecast (i8 addrspace(3)* bitcast (i32 addrspace(3)* @lds.6 to i8 addrspace(3)*) to i8*)], section "llvm.metadata" |
| @llvm.used = appending global [2 x i8*] [i8* addrspacecast (i8 addrspace(3)* bitcast (i16 addrspace(3)* @lds.1 to i8 addrspace(3)*) to i8*), i8* addrspacecast (i8 addrspace(3)* bitcast (i16 addrspace(3)* @lds.5 to i8 addrspace(3)*) to i8*)], section "llvm.metadata" |
| @llvm.compiler.used = appending global [3 x i8*] [i8* addrspacecast (i8 addrspace(3)* bitcast (i32 addrspace(3)* @lds.2 to i8 addrspace(3)*) to i8*), i8* addrspacecast (i8 addrspace(1)* bitcast (i64* addrspace(1)* @gptr.4 to i8 addrspace(1)*) to i8*), i8* addrspacecast (i8 addrspace(3)* bitcast (i32 addrspace(3)* @lds.6 to i8 addrspace(3)*) to i8*)], section "llvm.metadata" |
| |
| ; CHECK-LABEL: @k0() |
| ; CHECK: %ld.lds.1 = load i16, i16 addrspace(3)* getelementptr inbounds (%llvm.amdgcn.kernel.k0.lds.t, %llvm.amdgcn.kernel.k0.lds.t addrspace(3)* @llvm.amdgcn.kernel.k0.lds, i32 0, i32 1), align 4 |
| ; CHECK: %ld.lds.2 = load i32, i32 addrspace(3)* getelementptr inbounds (%llvm.amdgcn.kernel.k0.lds.t, %llvm.amdgcn.kernel.k0.lds.t addrspace(3)* @llvm.amdgcn.kernel.k0.lds, i32 0, i32 0), align 4 |
| ; CHECK: %ld.lds.3 = load i64, i64 addrspace(3)* @lds.3, align 4 |
| ; CHECK: %ld.lds.4 = load float, float addrspace(3)* @lds.4, align 4 |
| ; CHECK: ret void |
| define amdgpu_kernel void @k0() { |
| %ld.lds.1 = load i16, i16 addrspace(3)* @lds.1 |
| %ld.lds.2 = load i32, i32 addrspace(3)* @lds.2 |
| %ld.lds.3 = load i64, i64 addrspace(3)* @lds.3 |
| %ld.lds.4 = load float, float addrspace(3)* @lds.4 |
| ret void |
| } |