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D62407.diff
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Fri, Nov 15, 3:15 PM

D62407.diff

Index: test/OpenMP/nvptx_target_requires_unified_shared_memory.cpp
===================================================================
--- test/OpenMP/nvptx_target_requires_unified_shared_memory.cpp
+++ test/OpenMP/nvptx_target_requires_unified_shared_memory.cpp
@@ -0,0 +1,67 @@
+// Test declare target link under unified memory requirement.
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-cuda-mode -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -o - | FileCheck %s --check-prefix CHECK
+// expected-no-diagnostics
+
+#ifndef HEADER
+#define HEADER
+
+#define N 1000
+
+double var = 10.0;
+
+#pragma omp requires unified_shared_memory
+#pragma omp declare target link(var)
+
+int bar(int n){
+ double sum = 0;
+
+#pragma omp target
+ for(int i = 0; i < n; i++) {
+ sum += var;
+ }
+
+ return sum;
+}
+
+// CHECK: [[VAR:@.+]] = global double 1.000000e+01
+// CHECK: [[VAR_DECL_TGT_LINK_PTR:@.+]] = global double* [[VAR]]
+
+// CHECK: [[OFFLOAD_SIZES:@.+]] = private unnamed_addr constant [3 x i64] [i64 4, i64 8, i64 8]
+// CHECK: [[OFFLOAD_MAPTYPES:@.+]] = private unnamed_addr constant [3 x i64] [i64 800, i64 800, i64 531]
+
+// CHECK: [[N_CASTED:%.+]] = alloca i64
+// CHECK: [[SUM_CASTED:%.+]] = alloca i64
+
+// CHECK: [[OFFLOAD_BASEPTRS:%.+]] = alloca [3 x i8*]
+// CHECK: [[OFFLOAD_PTRS:%.+]] = alloca [3 x i8*]
+
+// CHECK: [[LOAD1:%.+]] = load i64, i64* [[N_CASTED]]
+// CHECK: [[LOAD2:%.+]] = load i64, i64* [[SUM_CASTED]]
+
+// CHECK: [[BPTR1:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_BASEPTRS]], i32 0, i32 0
+// CHECK: [[BCAST1:%.+]] = bitcast i8** [[BPTR1]] to i64*
+// CHECK: store i64 [[LOAD1]], i64* [[BCAST1]]
+// CHECK: [[BPTR2:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_PTRS]], i32 0, i32 0
+// CHECK: [[BCAST2:%.+]] = bitcast i8** [[BPTR2]] to i64*
+// CHECK: store i64 [[LOAD1]], i64* [[BCAST2]]
+
+// CHECK: [[BPTR3:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_BASEPTRS]], i32 0, i32 1
+// CHECK: [[BCAST3:%.+]] = bitcast i8** [[BPTR3]] to i64*
+// CHECK: store i64 [[LOAD2]], i64* [[BCAST3]]
+// CHECK: [[BPTR4:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_PTRS]], i32 0, i32 1
+// CHECK: [[BCAST4:%.+]] = bitcast i8** [[BPTR4]] to i64*
+// CHECK: store i64 [[LOAD2]], i64* [[BCAST4]]
+
+// CHECK: [[BPTR5:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_BASEPTRS]], i32 0, i32 2
+// CHECK: [[BCAST5:%.+]] = bitcast i8** [[BPTR5]] to double***
+// CHECK: store double** [[VAR_DECL_TGT_LINK_PTR]], double*** [[BCAST5]]
+// CHECK: [[BPTR6:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_PTRS]], i32 0, i32 2
+// CHECK: [[BCAST6:%.+]] = bitcast i8** [[BPTR6]] to double**
+// CHECK: store double* [[VAR]], double** [[BCAST6]]
+
+// CHECK: [[BPTR7:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_BASEPTRS]], i32 0, i32 0
+// CHECK: [[BPTR8:%.+]] = getelementptr inbounds [3 x i8*], [3 x i8*]* [[OFFLOAD_PTRS]], i32 0, i32 0
+
+// CHECK: call i32 @__tgt_target(i64 -1, i8* @{{.*}}.region_id, i32 3, i8** [[BPTR7]], i8** [[BPTR8]], i64* getelementptr inbounds ([3 x i64], [3 x i64]* [[OFFLOAD_SIZES]], i32 0, i32 0), i64* getelementptr inbounds ([3 x i64], [3 x i64]* [[OFFLOAD_MAPTYPES]], i32 0, i32 0))
+
+#endif

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