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| author | Alexey Bataev <a.bataev@hotmail.com> | 2018-12-04 15:25:01 +0000 |
|---|---|---|
| committer | Alexey Bataev <a.bataev@hotmail.com> | 2018-12-04 15:25:01 +0000 |
| commit | 2c1ff9dda762e010075f429e18ce1c499f1f4d0e (patch) | |
| tree | bc7d2419d792a1f031e19134b2038c677d1f0f4c /clang/test | |
| parent | c3028cac2462ec22f695ac673b5980be411abf41 (diff) | |
| download | bcm5719-llvm-2c1ff9dda762e010075f429e18ce1c499f1f4d0e.tar.gz bcm5719-llvm-2c1ff9dda762e010075f429e18ce1c499f1f4d0e.zip | |
[OPENMP][NVPTX]Fixed emission of the critical region.
Critical regions in NVPTX are the constructs, which, generally speaking,
are not supported by the NVPTX target. Instead we're using special
technique to handle the critical regions. Currently they are supported
only within the loop and all the threads in the loop must execute the
same critical region.
Inside of this special regions the regions still must be emitted as
critical, to avoid possible data races between the teams +
synchronization must use __kmpc_barrier functions.
llvm-svn: 348272
Diffstat (limited to 'clang/test')
| -rw-r--r-- | clang/test/OpenMP/nvptx_parallel_codegen.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/clang/test/OpenMP/nvptx_parallel_codegen.cpp b/clang/test/OpenMP/nvptx_parallel_codegen.cpp index 08431fccc00..3dcf3301798 100644 --- a/clang/test/OpenMP/nvptx_parallel_codegen.cpp +++ b/clang/test/OpenMP/nvptx_parallel_codegen.cpp @@ -356,7 +356,13 @@ int bar(int n){ // CHECK: [[RES:%.+]] = icmp eq i32 [[TID]], [[CC_VAL]] // CHECK: br i1 [[RES]], label -// CHECK: call void @llvm.nvvm.barrier0() +// CHECK: call void @__kmpc_critical( +// CHECK: load i32, i32* +// CHECK: add nsw i32 +// CHECK: store i32 +// CHECK: call void @__kmpc_end_critical( + +// CHECK: call void @__kmpc_barrier(%struct.ident_t* @{{.+}}, i32 %{{.+}}) // CHECK: [[NEW_CC_VAL:%.+]] = add nsw i32 [[CC_VAL]], 1 // CHECK: store i32 [[NEW_CC_VAL]], i32* [[CC]], // CHECK: br label |
