squiid/llvm
1
0
Fork 0
Code Issues Pull requests Activity
llvm/clang/test/OpenMP/target_update_ast_print.cpp
cchen 0cab91140f [OpenMP5.0] map item can be non-contiguous for target update 
In order not to modify the `tgt_target_data_update` information but still be
able to pass the extra information for non-contiguous map item (offset,
count, and stride for each dimension), this patch overload `arg` when
the maptype is set as `OMP_MAP_DESCRIPTOR`. The origin `arg` is for
passing the pointer information, however, the overloaded `arg` is an
array of descriptor_dim:

struct descriptor_dim {
  int64_t offset;
  int64_t count;
  int64_t stride
};

and the array size is the same as dimension size. In addition, since we
have count and stride information in descriptor_dim, we can replace/overload the
`arg_size` parameter by using dimension size.

For supporting `stride` in array section, we use a dummy dimension in
descriptor to store the unit size. The formula for counting the stride
in dimension D_n: `unit size * (D_0 * D_1 ... * D_n-1) * D_n.stride`.

Demonstrate how it works:
```
double arr[3][4][5];

D0: { offset = 0, count = 1, stride = 8 }                                // offset, count, dimension size always be 0, 1, 1 for this extra dimension, stride is the unit size
D1: { offset = 0, count = 2, stride = 8 * 1 * 2 = 16 }                   // stride = unit size * (product of dimension size of D0) * D1.stride = 4 * 1 * 2 = 8
D2: { offset = 2, count = 2, stride = 8 * (1 * 5) * 1 = 40  }            // stride = unit size * (product of dimension size of D0, D1) * D2.stride = 4 * 5 * 1 = 20
D3: { offset = 0, count = 2, stride = 8 * (1 * 5 * 4) * 2 = 320 }        // stride = unit size * (product of dimension size of D0, D1, D2) * D3.stride = 4 * 25 * 2 = 200

// X here means we need to offload this data, therefore, runtime will transfer
// data from offset 80, 96, 120, 136, 400, 416, 440, 456
// Runtime patch: https://reviews.llvm.org/D82245
// OOOOO OOOOO OOOOO
// OOOOO OOOOO OOOOO
// XOXOO OOOOO XOXOO
// XOXOO OOOOO XOXOO
```

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D84192
2020-11-06 21:04:37 -06:00

172 lines
7.5 KiB
C++
Raw Blame History

// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=50 -ast-print %s | FileCheck %s
// RUN: %clang_cc1 -fopenmp -fopenmp-version=50 -x c++ -std=c++11 -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -fopenmp-version=50 -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
// RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=50 -ast-print %s | FileCheck %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-version=50 -x c++ -std=c++11 -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-version=50 -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
// RUN: %clang_cc1 -DOMP51 -verify -fopenmp -fopenmp-version=51 -ast-print %s | FileCheck -check-prefixes=CHECK,OMP51 %s
// RUN: %clang_cc1 -DOMP51 -fopenmp -fopenmp-version=51 -x c++ -std=c++11 -emit-pch -o %t %s
// RUN: %clang_cc1 -DOMP51 -fopenmp -fopenmp-version=51 -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck -check-prefixes=CHECK,OMP51 %s
// RUN: %clang_cc1 -DOMP51 -verify -fopenmp-simd -fopenmp-version=51 -ast-print %s | FileCheck -check-prefixes=CHECK,OMP51 %s
// RUN: %clang_cc1 -DOMP51 -fopenmp-simd -fopenmp-version=51 -x c++ -std=c++11 -emit-pch -o %t %s
// RUN: %clang_cc1 -DOMP51 -fopenmp-simd -fopenmp-version=51 -std=c++11 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck -check-prefixes=CHECK,OMP51 %s
// expected-no-diagnostics
#ifndef HEADER
#define HEADER
void foo() {}
template <class T, class U>
T foo(T targ, U uarg) {
static T a, *p;
U b;
int l;
#pragma omp target update to(([a][targ])p, a) if(l>5) device(l) nowait depend(inout:l)
#pragma omp target update from(b, ([a][targ])p) if(l<5) device(l-1) nowait depend(inout:l)
U marr[10][10][10];
#pragma omp target update to(marr[2][0:2][0:2])
#pragma omp target update from(marr[2][0:2][0:2])
#pragma omp target update from(marr[:2][0:2][0:2:1])
#pragma omp target update to(marr[:l][:l][l:])
#pragma omp target update to(marr[:2][:1][:])
#pragma omp target update from(marr[:2][:1][:])
#pragma omp target update to(marr[:2][:][:1])
#pragma omp target update from(marr[:2][:][:1])
#pragma omp target update to(marr[:2][:] [1:])
#pragma omp target update from(marr[:2][:][1:])
#pragma omp target update to(marr[:1][3:2][:2])
#pragma omp target update from(marr[:1][3:2][:2])
#pragma omp target update to(marr[:1][:2][0])
#pragma omp target update from(marr[:1][:2][0])
int arr[100][100];
#pragma omp target update to(arr[2][0:1:2])
#pragma omp target update from(arr[2][0:1:2])
#ifdef OMP51
#pragma omp target update to(present: arr[2][0:1:2])
#pragma omp target update from(present: arr[2][0:1:2], a)
#endif
return a + targ + (T)b;
}
// CHECK: static T a, *p;
// CHECK-NEXT: U b;
// CHECK-NEXT: int l;
// CHECK-NEXT: #pragma omp target update to(([a][targ])p,a) if(l > 5) device(l) nowait depend(inout : l){{$}}
// CHECK-NEXT: #pragma omp target update from(b,([a][targ])p) if(l < 5) device(l - 1) nowait depend(inout : l)
// CHECK: static int a, *p;
// CHECK-NEXT: float b;
// CHECK-NEXT: int l;
// CHECK-NEXT: #pragma omp target update to(([a][targ])p,a) if(l > 5) device(l) nowait depend(inout : l)
// CHECK-NEXT: #pragma omp target update from(b,([a][targ])p) if(l < 5) device(l - 1) nowait depend(inout : l)
// CHECK: static char a, *p;
// CHECK-NEXT: float b;
// CHECK-NEXT: int l;
// CHECK-NEXT: #pragma omp target update to(([a][targ])p,a) if(l > 5) device(l) nowait depend(inout : l)
// CHECK-NEXT: #pragma omp target update from(b,([a][targ])p) if(l < 5) device(l - 1) nowait depend(inout : l)
// CHECK: marr[10][10][10];
// CHECK-NEXT: #pragma omp target update to(marr[2][0:2][0:2])
// CHECK-NEXT: #pragma omp target update from(marr[2][0:2][0:2])
// CHECK-NEXT: #pragma omp target update from(marr[:2][0:2][0:2:1])
// CHECK-NEXT: #pragma omp target update to(marr[:l][:l][l:])
// CHECK-NEXT: #pragma omp target update to(marr[:2][:1][:])
// CHECK-NEXT: #pragma omp target update from(marr[:2][:1][:])
// CHECK-NEXT: #pragma omp target update to(marr[:2][:][:1])
// CHECK-NEXT: #pragma omp target update from(marr[:2][:][:1])
// CHECK-NEXT: #pragma omp target update to(marr[:2][:][1:])
// CHECK-NEXT: #pragma omp target update from(marr[:2][:][1:])
// CHECK-NEXT: #pragma omp target update to(marr[:1][3:2][:2])
// CHECK-NEXT: #pragma omp target update from(marr[:1][3:2][:2])
// CHECK-NEXT: #pragma omp target update to(marr[:1][:2][0])
// CHECK-NEXT: #pragma omp target update from(marr[:1][:2][0])
// CHECK: int arr[100][100];
// CHECK-NEXT: #pragma omp target update to(arr[2][0:1:2])
// CHECK-NEXT: #pragma omp target update from(arr[2][0:1:2])
// OMP5-NEXT: #pragma omp target update to(present: arr[2][0:1:2])
// OMP5-NEXT: #pragma omp target update from(present: arr[2][0:1:2], a)
int main(int argc, char **argv) {
static int a;
int n;
float f;
// CHECK: static int a;
// CHECK-NEXT: int n;
// CHECK-NEXT: float f;
#pragma omp target update to(a) if(f>0.0) device(n) nowait depend(in:n)
// CHECK-NEXT: #pragma omp target update to(a) if(f > 0.) device(n) nowait depend(in : n)
#pragma omp target update from(f) if(f<0.0) device(n+1) nowait depend(in:n)
// CHECK-NEXT: #pragma omp target update from(f) if(f < 0.) device(n + 1) nowait depend(in : n)
#pragma omp target update to(argv[2][0:1:2])
// CHECK-NEXT: #pragma omp target update to(argv[2][0:1:2])
#pragma omp target update from(argv[2][0:1:2])
// CHECK-NEXT: #pragma omp target update from(argv[2][0:1:2])
#ifdef OMP51
#pragma omp target update to(present: argv[2][0:1:2])
// OMP5-NEXT: #pragma omp target update to(present: arr[2][0:1:2])
#pragma omp target update from(argv[2][0:1:2], a)
// OMP5-NEXT: #pragma omp target update from(present: arr[2][0:1:2], a)
#endif
float marr[10][10][10];
// CHECK: marr[10][10][10];
#pragma omp target update to(marr[2][0:2][0:2])
// CHECK-NEXT: #pragma omp target update to(marr[2][0:2][0:2])
#pragma omp target update from(marr[2][0:2][0:2])
// CHECK-NEXT: #pragma omp target update from(marr[2][0:2][0:2])
#pragma omp target update to(marr[:n][:n][n:])
// CHECK: #pragma omp target update to(marr[:n][:n][n:])
#pragma omp target update from(marr[:2][:1][:])
// CHECK-NEXT: #pragma omp target update from(marr[:2][:1][:])
#pragma omp target update to(marr[:2][:][:1])
// CHECK-NEXT: #pragma omp target update to(marr[:2][:][:1])
#pragma omp target update from(marr[:2][:][:1])
// CHECK-NEXT: #pragma omp target update from(marr[:2][:][:1])
#pragma omp target update to(marr[:2][:][1:])
// CHECK-NEXT: #pragma omp target update to(marr[:2][:][1:])
#pragma omp target update from(marr[:2][:][1:])
// CHECK-NEXT: #pragma omp target update from(marr[:2][:][1:])
#pragma omp target update to(marr[:1][3:2][:2])
// CHECK-NEXT: #pragma omp target update to(marr[:1][3:2][:2])
#pragma omp target update from(marr[:1][3:2][:2])
// CHECK-NEXT: #pragma omp target update from(marr[:1][3:2][:2])
#pragma omp target update to(marr[:1][:2][0])
// CHECK-NEXT: #pragma omp target update to(marr[:1][:2][0])
#pragma omp target update from(marr[:1][:2][0])
// CHECK-NEXT: #pragma omp target update from(marr[:1][:2][0])
#pragma omp target update to(marr[:2:][0:2][0:2:1])
// CHECK-NEXT: #pragma omp target update to(marr[:2:][0:2][0:2:1])
#pragma omp target update from(marr[:2:][0:2][0:2:1])
// CHECK-NEXT: #pragma omp target update from(marr[:2:][0:2][0:2:1])
#pragma omp target update to(marr[:2:][:2:][0:2:1])
// CHECK-NEXT: #pragma omp target update to(marr[:2:][:2:][0:2:1])
#pragma omp target update from(marr[:2:][:2:][0:2:1])
// CHECK-NEXT: #pragma omp target update from(marr[:2:][:2:][0:2:1])
return foo(argc, f) + foo(argv[0][0], f) + a;
}
#endif
Reference in a new issue View git blame Copy permalink