[OpenMP] Allow negative lower bound in array sections based on pointers

OpenMP 4.5 removed the restriction that array section lower bound must be non negative.
This change is to allow negative values for array section based on pointers.
For array section based on array type there is still a restriction: "The array section must be a subset of the original array."

Patch by David S.

Differential Revision: https://reviews.llvm.org/D22481

llvm-svn: 276177

1 files changed, 2 insertions, 2 deletions

diff --git a/clang/test/OpenMP/target_enter_data_depend_messages.cpp b/clang/test/OpenMP/target_enter_data_depend_messages.cpp
index 84254b5c312..4aa122355ba 100644
--- a/clang/test/OpenMP/target_enter_data_depend_messages.cpp
+++ b/clang/test/OpenMP/target_enter_data_depend_messages.cpp
@@ -68,7 +68,7 @@ int tmain(T argc, S **argv, R *env[]) {
   foo();
   #pragma omp target enter data map(to: i) depend (in : argv[0:-1]) // expected-error {{section length is evaluated to a negative value -1}}
   foo();
-  #pragma omp target enter data map(to: i) depend (in : argv[-1:0]) // expected-error {{section lower bound is evaluated to a negative value -1}}
+  #pragma omp target enter data map(to: i) depend (in : argv[-1:0])
   foo();
   #pragma omp target enter data map(to: i) depend (in : argv[:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}}
   foo();
@@ -143,7 +143,7 @@ int main(int argc, char **argv, char *env[]) {
   foo();
   #pragma omp target enter data map(to: i) depend (in : argv[0:-1]) // expected-error {{section length is evaluated to a negative value -1}}
   foo();
-  #pragma omp target enter data map(to: i) depend (in : argv[-1:0]) // expected-error {{section lower bound is evaluated to a negative value -1}}
+  #pragma omp target enter data map(to: i) depend (in : argv[-1:0])
   foo();
   #pragma omp target enter data map(to: i) depend (in : argv[:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}}
   foo();