c99042ba97
If the variable is captured by value and the corresponding parameter in the outlined function escapes its declaration context, this parameter must be globalized. To globalize it we need to get the address of the original parameter, load the value, store it to the global address and use this global address instead of the original. Patch improves globalization for parallel|teams regions + functions in declare target regions. llvm-svn: 327654
45 lines
1.9 KiB
C++
45 lines
1.9 KiB
C++
// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm-bc %s -o %t-ppc-host.bc
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// RUN: %clang_cc1 -verify -fopenmp -x c++ -triple nvptx64-nvidia-cuda -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s
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// expected-no-diagnostics
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int foo(int &a) { return a; }
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int bar() {
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int a;
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return foo(a);
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}
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// CHECK: define void @__omp_offloading_{{.*}}maini1{{.*}}_l[[@LINE+5]](i32* dereferenceable{{.*}})
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// CHECK-NOT: @__kmpc_data_sharing_push_stack
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int maini1() {
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int a;
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#pragma omp target parallel map(from:a)
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{
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int b;
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a = foo(b) + bar();
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}
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return a;
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}
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// parallel region
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// CHECK: define {{.*}}void @{{.*}}(i32* noalias {{.*}}, i32* noalias {{.*}}, i32* dereferenceable{{.*}})
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// CHECK: [[RES:%.+]] = call i8* @__kmpc_data_sharing_push_stack(i64 4, i16 0)
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// CHECK: [[GLOBALS:%.+]] = bitcast i8* [[RES]] to [[GLOBAL_ST:%struct[.].*]]*
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// CHECK: [[B_ADDR:%.+]] = getelementptr inbounds [[GLOBAL_ST]], [[GLOBAL_ST]]* [[GLOBALS]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
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// CHECK: call {{.*}}[[FOO:@.*foo.*]](i32* dereferenceable{{.*}} [[B_ADDR]])
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// CHECK: call {{.*}}[[BAR:@.*bar.*]]()
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// CHECK: call void @__kmpc_data_sharing_pop_stack(i8* [[RES]])
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// CHECK: ret void
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// CHECK: define {{.*}}[[FOO]](i32* dereferenceable{{.*}})
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// CHECK-NOT: @__kmpc_data_sharing_push_stack
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// CHECK: define {{.*}}[[BAR]]()
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// CHECK: [[RES:%.+]] = call i8* @__kmpc_data_sharing_push_stack(i64 4, i16 0)
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// CHECK: [[GLOBALS:%.+]] = bitcast i8* [[RES]] to [[GLOBAL_ST:%struct[.].*]]*
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// CHECK: [[A_ADDR:%.+]] = getelementptr inbounds [[GLOBAL_ST]], [[GLOBAL_ST]]* [[GLOBALS]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
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// CHECK: call {{.*}}[[FOO]](i32* dereferenceable{{.*}} [[A_ADDR]])
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// CHECK: call void @__kmpc_data_sharing_pop_stack(i8* [[RES]])
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// CHECK: ret i32
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