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| author | Alexey Bataev <a.bataev@hotmail.com> | 2018-10-09 14:49:00 +0000 |
|---|---|---|
| committer | Alexey Bataev <a.bataev@hotmail.com> | 2018-10-09 14:49:00 +0000 |
| commit | 9ea3c385973c395c4798145f71ff3ae34ccaabeb (patch) | |
| tree | 0a2f511ca7fb094143065d6ee32b2976e7079a80 /clang/test/OpenMP/nvptx_target_codegen.cpp | |
| parent | f5fac1826a867d5e65310456670cc1d5a495ed02 (diff) | |
| download | bcm5719-llvm-9ea3c385973c395c4798145f71ff3ae34ccaabeb.tar.gz bcm5719-llvm-9ea3c385973c395c4798145f71ff3ae34ccaabeb.zip | |
[OPENMP][NVPTX] Support memory coalescing for globalized variables.
Added support for memory coalescing for better performance for
globalized variables. From now on all the globalized variables are
represented as arrays of 32 elements and each thread accesses these
elements using `tid & 31` as index.
llvm-svn: 344049
Diffstat (limited to 'clang/test/OpenMP/nvptx_target_codegen.cpp')
| -rw-r--r-- | clang/test/OpenMP/nvptx_target_codegen.cpp | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/clang/test/OpenMP/nvptx_target_codegen.cpp b/clang/test/OpenMP/nvptx_target_codegen.cpp index 01f346121a4..69c338995b7 100644 --- a/clang/test/OpenMP/nvptx_target_codegen.cpp +++ b/clang/test/OpenMP/nvptx_target_codegen.cpp @@ -554,7 +554,8 @@ int baz(int f, double &a) { // CHECK: ret void // CHECK: define i32 [[BAZ]](i32 [[F:%.*]], double* dereferenceable{{.*}}) - // CHECK: [[STACK:%.+]] = alloca [[GLOBAL_ST:%.+]], + // CHECK: alloca i32, + // CHECK: [[LOCAL_F_PTR:%.+]] = alloca i32, // CHECK: [[ZERO_ADDR:%.+]] = alloca i32, // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* // CHECK: store i32 0, i32* [[ZERO_ADDR]] @@ -562,11 +563,15 @@ int baz(int f, double &a) { // CHECK: [[IS_SPMD:%.+]] = icmp ne i8 [[RES]], 0 // CHECK: br i1 [[IS_SPMD]], label // CHECK: br label - // CHECK: [[PTR:%.+]] = call i8* @__kmpc_data_sharing_push_stack(i{{64|32}} 4, i16 0) - // CHECK: [[REC_ADDR:%.+]] = bitcast i8* [[PTR]] to [[GLOBAL_ST]]* + // CHECK: [[PTR:%.+]] = call i8* @__kmpc_data_sharing_push_stack(i{{64|32}} 128, i16 0) + // CHECK: [[REC_ADDR:%.+]] = bitcast i8* [[PTR]] to [[GLOBAL_ST:%.+]]* // CHECK: br label - // CHECK: [[ITEMS:%.+]] = phi [[GLOBAL_ST]]* [ [[STACK]], {{.+}} ], [ [[REC_ADDR]], {{.+}} ] - // CHECK: [[F_PTR:%.+]] = getelementptr inbounds [[GLOBAL_ST]], [[GLOBAL_ST]]* [[ITEMS]], i32 0, i32 0 + // CHECK: [[ITEMS:%.+]] = phi [[GLOBAL_ST]]* [ null, {{.+}} ], [ [[REC_ADDR]], {{.+}} ] + // CHECK: [[F_PTR_ARR:%.+]] = getelementptr inbounds [[GLOBAL_ST]], [[GLOBAL_ST]]* [[ITEMS]], i32 0, i32 0 + // CHECK: [[TID:%.+]] = call i32 @llvm.nvvm.read.ptx.sreg.tid.x() + // CHECK: [[LID:%.+]] = and i32 [[TID]], 31 + // CHECK: [[GLOBAL_F_PTR:%.+]] = getelementptr inbounds [32 x i32], [32 x i32]* [[F_PTR_ARR]], i32 0, i32 [[LID]] + // CHECK: [[F_PTR:%.+]] = select i1 [[IS_SPMD]], i32* [[LOCAL_F_PTR]], i32* [[GLOBAL_F_PTR]] // CHECK: store i32 %{{.+}}, i32* [[F_PTR]], // CHECK: [[RES:%.+]] = call i8 @__kmpc_is_spmd_exec_mode() |
