hliao updated this revision to Diff 304181.
hliao added a comment.
Remove aggregate kernel argument coercion only.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D89980/new/
https://reviews.llvm.org/D89980
Files:
clang/lib/CodeGen/TargetInfo.cpp
clang/test/CodeGenCUDA/amdgpu-kernel-arg-pointer-type.cu
clang/test/CodeGenCUDA/kernel-args.cu
Index: clang/test/CodeGenCUDA/kernel-args.cu
===================================================================
--- clang/test/CodeGenCUDA/kernel-args.cu
+++ clang/test/CodeGenCUDA/kernel-args.cu
@@ -1,22 +1,23 @@
-// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device \
+// RUN: %clang_cc1 -x hip -triple amdgcn-amd-amdhsa -fcuda-is-device \
// RUN: -emit-llvm %s -o - | FileCheck -check-prefix=AMDGCN %s
-// RUN: %clang_cc1 -triple nvptx64-nvidia-cuda- -fcuda-is-device \
+// RUN: %clang_cc1 -x cuda -triple nvptx64-nvidia-cuda- -fcuda-is-device \
// RUN: -emit-llvm %s -o - | FileCheck -check-prefix=NVPTX %s
#include "Inputs/cuda.h"
struct A {
int a[32];
+ float *p;
};
-// AMDGCN: define amdgpu_kernel void @_Z6kernel1A(%struct.A addrspace(4)* byref(%struct.A) align 4 %{{.+}})
-// NVPTX: define void @_Z6kernel1A(%struct.A* byval(%struct.A) align 4 %x)
+// AMDGCN: define amdgpu_kernel void @_Z6kernel1A(%struct.A addrspace(4)* byref(%struct.A) align 8 %{{.+}})
+// NVPTX: define void @_Z6kernel1A(%struct.A* byval(%struct.A) align 8 %x)
__global__ void kernel(A x) {
}
class Kernel {
public:
- // AMDGCN: define amdgpu_kernel void @_ZN6Kernel12memberKernelE1A(%struct.A addrspace(4)* byref(%struct.A) align 4 %{{.+}})
- // NVPTX: define void @_ZN6Kernel12memberKernelE1A(%struct.A* byval(%struct.A) align 4 %x)
+ // AMDGCN: define amdgpu_kernel void @_ZN6Kernel12memberKernelE1A(%struct.A addrspace(4)* byref(%struct.A) align 8 %{{.+}})
+ // NVPTX: define void @_ZN6Kernel12memberKernelE1A(%struct.A* byval(%struct.A) align 8 %x)
static __global__ void memberKernel(A x){}
template<typename T> static __global__ void templateMemberKernel(T x) {}
};
@@ -29,11 +30,11 @@
void test() {
Kernel K;
- // AMDGCN: define amdgpu_kernel void @_Z14templateKernelI1AEvT_(%struct.A addrspace(4)* byref(%struct.A) align 4 %{{.+}}
- // NVPTX: define void @_Z14templateKernelI1AEvT_(%struct.A* byval(%struct.A) align 4 %x)
+ // AMDGCN: define amdgpu_kernel void @_Z14templateKernelI1AEvT_(%struct.A addrspace(4)* byref(%struct.A) align 8 %{{.+}}
+ // NVPTX: define void @_Z14templateKernelI1AEvT_(%struct.A* byval(%struct.A) align 8 %x)
launch((void*)templateKernel<A>);
- // AMDGCN: define amdgpu_kernel void @_ZN6Kernel20templateMemberKernelI1AEEvT_(%struct.A addrspace(4)* byref(%struct.A) align 4 %{{.+}}
- // NVPTX: define void @_ZN6Kernel20templateMemberKernelI1AEEvT_(%struct.A* byval(%struct.A) align 4 %x)
+ // AMDGCN: define amdgpu_kernel void @_ZN6Kernel20templateMemberKernelI1AEEvT_(%struct.A addrspace(4)* byref(%struct.A) align 8 %{{.+}}
+ // NVPTX: define void @_ZN6Kernel20templateMemberKernelI1AEEvT_(%struct.A* byval(%struct.A) align 8 %x)
launch((void*)Kernel::templateMemberKernel<A>);
}
Index: clang/test/CodeGenCUDA/amdgpu-kernel-arg-pointer-type.cu
===================================================================
--- clang/test/CodeGenCUDA/amdgpu-kernel-arg-pointer-type.cu
+++ clang/test/CodeGenCUDA/amdgpu-kernel-arg-pointer-type.cu
@@ -9,8 +9,6 @@
// Coerced struct from `struct S` without all generic pointers lowered into
// global ones.
-// COMMON: %struct.S.coerce = type { i32 addrspace(1)*, float addrspace(1)* }
-// COMMON: %struct.T.coerce = type { [2 x float addrspace(1)*] }
// On the host-side compilation, generic pointer won't be coerced.
// HOST-NOT: %struct.S.coerce
@@ -61,15 +59,17 @@
// `by-val` struct will be coerced into a similar struct with all generic
// pointers lowerd into global ones.
// HOST: define void @_Z22__device_stub__kernel41S(i32* %s.coerce0, float* %s.coerce1)
-// COMMON-LABEL: define amdgpu_kernel void @_Z7kernel41S(%struct.S.coerce %s.coerce)
-// OPT: [[P0:%.*]] = extractvalue %struct.S.coerce %s.coerce, 0
-// OPT: [[P1:%.*]] = extractvalue %struct.S.coerce %s.coerce, 1
-// OPT: [[V0:%.*]] = load i32, i32 addrspace(1)* [[P0]], align 4
+// COMMON-LABEL: define amdgpu_kernel void @_Z7kernel41S(%struct.S addrspace(4)*{{.*}} byref(%struct.S) align 8 %0)
+// OPT: [[R0:%.*]] = getelementptr inbounds %struct.S, %struct.S addrspace(4)* %0, i64 0, i32 0
+// OPT: [[P0:%.*]] = load i32*, i32* addrspace(4)* [[R0]], align 8
+// OPT: [[R1:%.*]] = getelementptr inbounds %struct.S, %struct.S addrspace(4)* %0, i64 0, i32 1
+// OPT: [[P1:%.*]] = load float*, float* addrspace(4)* [[R1]], align 8
+// OPT: [[V0:%.*]] = load i32, i32* [[P0]], align 4
// OPT: [[INC:%.*]] = add nsw i32 [[V0]], 1
-// OPT: store i32 [[INC]], i32 addrspace(1)* [[P0]], align 4
-// OPT: [[V1:%.*]] = load float, float addrspace(1)* [[P1]], align 4
+// OPT: store i32 [[INC]], i32* [[P0]], align 4
+// OPT: [[V1:%.*]] = load float, float* [[P1]], align 4
// OPT: [[ADD:%.*]] = fadd contract float [[V1]], 1.000000e+00
-// OPT: store float [[ADD]], float addrspace(1)* [[P1]], align 4
+// OPT: store float [[ADD]], float* [[P1]], align 4
// OPT: ret void
__global__ void kernel4(struct S s) {
s.x[0]++;
@@ -89,16 +89,17 @@
};
// `by-val` array is also coerced.
// HOST: define void @_Z22__device_stub__kernel61T(float* %t.coerce0, float* %t.coerce1)
-// COMMON-LABEL: define amdgpu_kernel void @_Z7kernel61T(%struct.T.coerce %t.coerce)
-// OPT: [[ARR:%.*]] = extractvalue %struct.T.coerce %t.coerce, 0
-// OPT: [[P0:%.*]] = extractvalue [2 x float addrspace(1)*] [[ARR]], 0
-// OPT: [[P1:%.*]] = extractvalue [2 x float addrspace(1)*] [[ARR]], 1
-// OPT: [[V0:%.*]] = load float, float addrspace(1)* [[P0]], align 4
+// COMMON-LABEL: define amdgpu_kernel void @_Z7kernel61T(%struct.T addrspace(4)*{{.*}} byref(%struct.T) align 8 %0)
+// OPT: [[R0:%.*]] = getelementptr inbounds %struct.T, %struct.T addrspace(4)* %0, i64 0, i32 0, i64 0
+// OPT: [[P0:%.*]] = load float*, float* addrspace(4)* [[R0]], align 8
+// OPT: [[R1:%.*]] = getelementptr inbounds %struct.T, %struct.T addrspace(4)* %0, i64 0, i32 0, i64 1
+// OPT: [[P1:%.*]] = load float*, float* addrspace(4)* [[R1]], align 8
+// OPT: [[V0:%.*]] = load float, float* [[P0]], align 4
// OPT: [[ADD0:%.*]] = fadd contract float [[V0]], 1.000000e+00
-// OPT: store float [[ADD0]], float addrspace(1)* [[P0]], align 4
-// OPT: [[V1:%.*]] = load float, float addrspace(1)* [[P1]], align 4
+// OPT: store float [[ADD0]], float* [[P0]], align 4
+// OPT: [[V1:%.*]] = load float, float* [[P1]], align 4
// OPT: [[ADD1:%.*]] = fadd contract float [[V1]], 2.000000e+00
-// OPT: store float [[ADD1]], float addrspace(1)* [[P1]], align 4
+// OPT: store float [[ADD1]], float* [[P1]], align 4
// OPT: ret void
__global__ void kernel6(struct T t) {
t.x[0][0] += 1.f;
Index: clang/lib/CodeGen/TargetInfo.cpp
===================================================================
--- clang/lib/CodeGen/TargetInfo.cpp
+++ clang/lib/CodeGen/TargetInfo.cpp
@@ -8712,35 +8712,9 @@
bool isHomogeneousAggregateSmallEnough(const Type *Base,
uint64_t Members) const override;
- // Coerce HIP pointer arguments from generic pointers to global ones.
+ // Coerce HIP scalar pointer arguments from generic pointers to global ones.
llvm::Type *coerceKernelArgumentType(llvm::Type *Ty, unsigned FromAS,
unsigned ToAS) const {
- // Structure types.
- if (auto STy = dyn_cast<llvm::StructType>(Ty)) {
- SmallVector<llvm::Type *, 8> EltTys;
- bool Changed = false;
- for (auto T : STy->elements()) {
- auto NT = coerceKernelArgumentType(T, FromAS, ToAS);
- EltTys.push_back(NT);
- Changed |= (NT != T);
- }
- // Skip if there is no change in element types.
- if (!Changed)
- return STy;
- if (STy->hasName())
- return llvm::StructType::create(
- EltTys, (STy->getName() + ".coerce").str(), STy->isPacked());
- return llvm::StructType::get(getVMContext(), EltTys, STy->isPacked());
- }
- // Array types.
- if (auto ATy = dyn_cast<llvm::ArrayType>(Ty)) {
- auto T = ATy->getElementType();
- auto NT = coerceKernelArgumentType(T, FromAS, ToAS);
- // Skip if there is no change in that element type.
- if (NT == T)
- return ATy;
- return llvm::ArrayType::get(NT, ATy->getNumElements());
- }
// Single value types.
if (Ty->isPointerTy() && Ty->getPointerAddressSpace() == FromAS)
return llvm::PointerType::get(
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