23f6c8d635
Currently LDS variables are removed by the lower module pass if they have a use which is caught by the replace with struct control flow. This makes tests brittle to changes to that control flow which induces noise when trying to improve lowering. Some tests already check that variables are removed, while others checked that they are not removed. LDS variables are not (currently) externally accessible, and if that changes the machinery which makes them externally accessible will look like a use. This change therefore breaks no applications. Reviewed By: rampitec Differential Revision: https://reviews.llvm.org/D133028
81 lines
4.9 KiB
LLVM
81 lines
4.9 KiB
LLVM
; 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
|
|
|
|
@lds.size.1.align.1 = internal unnamed_addr addrspace(3) global [1 x i8] undef, align 1
|
|
@lds.size.2.align.2 = internal unnamed_addr addrspace(3) global [2 x i8] undef, align 2
|
|
@lds.size.4.align.4 = internal unnamed_addr addrspace(3) global [4 x i8] undef, align 4
|
|
@lds.size.16.align.16 = internal unnamed_addr addrspace(3) global [16 x i8] undef, align 16
|
|
|
|
; CHECK: %llvm.amdgcn.kernel.k0.lds.t = type { [16 x i8], [4 x i8], [2 x i8], [1 x i8] }
|
|
; CHECK: %llvm.amdgcn.kernel.k1.lds.t = type { [16 x i8], [4 x i8], [2 x i8] }
|
|
|
|
;.
|
|
; CHECK: @lds.k2 = addrspace(3) global [1 x i8] undef, align 1
|
|
; CHECK: @llvm.amdgcn.kernel.k0.lds = internal addrspace(3) global %llvm.amdgcn.kernel.k0.lds.t undef, align 16
|
|
; CHECK: @llvm.amdgcn.kernel.k1.lds = internal addrspace(3) global %llvm.amdgcn.kernel.k1.lds.t undef, align 16
|
|
;.
|
|
define amdgpu_kernel void @k0() {
|
|
; CHECK-LABEL: @k0(
|
|
; CHECK-NEXT: %lds.size.1.align.1.bc = bitcast [1 x i8] 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 3) to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 1, i8 addrspace(3)* %lds.size.1.align.1.bc, align 2
|
|
; CHECK-NEXT: %lds.size.2.align.2.bc = bitcast [2 x i8] 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 2) to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 2, i8 addrspace(3)* %lds.size.2.align.2.bc, align 4
|
|
; CHECK-NEXT: %lds.size.4.align.4.bc = bitcast [4 x i8] 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) to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 4, i8 addrspace(3)* %lds.size.4.align.4.bc, align 16
|
|
; CHECK-NEXT: %lds.size.16.align.16.bc = bitcast [16 x i8] 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) to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 16, i8 addrspace(3)* %lds.size.16.align.16.bc, align 16
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%lds.size.1.align.1.bc = bitcast [1 x i8] addrspace(3)* @lds.size.1.align.1 to i8 addrspace(3)*
|
|
store i8 1, i8 addrspace(3)* %lds.size.1.align.1.bc, align 1
|
|
|
|
%lds.size.2.align.2.bc = bitcast [2 x i8] addrspace(3)* @lds.size.2.align.2 to i8 addrspace(3)*
|
|
store i8 2, i8 addrspace(3)* %lds.size.2.align.2.bc, align 2
|
|
|
|
%lds.size.4.align.4.bc = bitcast [4 x i8] addrspace(3)* @lds.size.4.align.4 to i8 addrspace(3)*
|
|
store i8 4, i8 addrspace(3)* %lds.size.4.align.4.bc, align 4
|
|
|
|
%lds.size.16.align.16.bc = bitcast [16 x i8] addrspace(3)* @lds.size.16.align.16 to i8 addrspace(3)*
|
|
store i8 16, i8 addrspace(3)* %lds.size.16.align.16.bc, align 16
|
|
|
|
ret void
|
|
}
|
|
|
|
define amdgpu_kernel void @k1() {
|
|
; CHECK-LABEL: @k1(
|
|
; CHECK-NEXT: %lds.size.2.align.2.bc = bitcast [2 x i8] addrspace(3)* getelementptr inbounds (%llvm.amdgcn.kernel.k1.lds.t, %llvm.amdgcn.kernel.k1.lds.t addrspace(3)* @llvm.amdgcn.kernel.k1.lds, i32 0, i32 2) to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 2, i8 addrspace(3)* %lds.size.2.align.2.bc, align 4
|
|
; CHECK-NEXT: %lds.size.4.align.4.bc = bitcast [4 x i8] addrspace(3)* getelementptr inbounds (%llvm.amdgcn.kernel.k1.lds.t, %llvm.amdgcn.kernel.k1.lds.t addrspace(3)* @llvm.amdgcn.kernel.k1.lds, i32 0, i32 1) to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 4, i8 addrspace(3)* %lds.size.4.align.4.bc, align 16
|
|
; CHECK-NEXT: %lds.size.16.align.16.bc = bitcast [16 x i8] addrspace(3)* getelementptr inbounds (%llvm.amdgcn.kernel.k1.lds.t, %llvm.amdgcn.kernel.k1.lds.t addrspace(3)* @llvm.amdgcn.kernel.k1.lds, i32 0, i32 0) to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 16, i8 addrspace(3)* %lds.size.16.align.16.bc, align 16
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%lds.size.2.align.2.bc = bitcast [2 x i8] addrspace(3)* @lds.size.2.align.2 to i8 addrspace(3)*
|
|
store i8 2, i8 addrspace(3)* %lds.size.2.align.2.bc, align 2
|
|
|
|
%lds.size.4.align.4.bc = bitcast [4 x i8] addrspace(3)* @lds.size.4.align.4 to i8 addrspace(3)*
|
|
store i8 4, i8 addrspace(3)* %lds.size.4.align.4.bc, align 4
|
|
|
|
%lds.size.16.align.16.bc = bitcast [16 x i8] addrspace(3)* @lds.size.16.align.16 to i8 addrspace(3)*
|
|
store i8 16, i8 addrspace(3)* %lds.size.16.align.16.bc, align 16
|
|
|
|
ret void
|
|
}
|
|
|
|
; Do not lower LDS for graphics shaders.
|
|
|
|
@lds.k2 = addrspace(3) global [1 x i8] undef, align 1
|
|
|
|
define amdgpu_ps void @k2() {
|
|
; CHECK-LABEL: @k2(
|
|
; CHECK-NEXT: %lds.k2.bc = bitcast [1 x i8] addrspace(3)* @lds.k2 to i8 addrspace(3)*
|
|
; CHECK-NEXT: store i8 1, i8 addrspace(3)* %lds.k2.bc, align 1
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%lds.k2.bc = bitcast [1 x i8] addrspace(3)* @lds.k2 to i8 addrspace(3)*
|
|
store i8 1, i8 addrspace(3)* %lds.k2.bc, align 1
|
|
|
|
ret void
|
|
}
|