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[OPENMP]Fix PR40513: lastprivate taskloop counter. 

We don't need to use the predetermined data-sharing attributes for the
loop counters if the user explicitly specified correct data-sharing
attributes for such variables.

llvm-svn: 352543
This commit is contained in:
Alexey Bataev 2019-01-29 21:12:28 +00:00
parent 33c9d9a9fc
commit c2cdff6ffa
2 changed files with 16 additions and 6 deletions
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5
clang/lib/Sema/SemaOpenMP.cpp
View File

@ -4866,10 +4866,7 @@ static bool checkOpenMPIterationSpace(
// lastprivate (for simd directives with several collapsed or ordered
// loops).
if (DVar.CKind == OMPC_unknown)
DVar = DSA.hasDSA(LCDecl, isOpenMPPrivate,
[](OpenMPDirectiveKind) -> bool { return true; },
/*FromParent=*/false);
DSA.addDSA(LCDecl, LoopDeclRefExpr, PredeterminedCKind);
DSA.addDSA(LCDecl, LoopDeclRefExpr, PredeterminedCKind);
}
assert(isOpenMPLoopDirective(DKind) && "DSA for non-loop vars");

17
clang/test/OpenMP/taskloop_lastprivate_codegen.cpp
View File

@ -4,6 +4,7 @@
// RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DLAMBDA -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=LAMBDA %s
// RUN: %clang_cc1 -verify -fopenmp -x c++ -fblocks -DBLOCKS -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=BLOCKS %s
// RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DARRAY -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=ARRAY %s
// RUN: %clang_cc1 -verify -fopenmp -x c++ -std=c++11 -DLOOP -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=LOOP %s
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-apple-darwin10 -emit-pch -o %t %s
@ -11,11 +12,12 @@
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -std=c++11 -DLAMBDA -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -fblocks -DBLOCKS -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -std=c++11 -DARRAY -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -std=c++11 -DLOOP -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=SIMD-ONLY0 %s
// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
// expected-no-diagnostics
// It doesn't pass on win32.
// REQUIRES: shell
#ifndef ARRAY
#if !defined(ARRAY) && !defined(LOOP)
#ifndef HEADER
#define HEADER
@ -501,7 +503,7 @@ int main() {
// CHECK: ret i32
#endif
#else
#elif defined(ARRAY)
// ARRAY-LABEL: array_func
struct St {
int a, b;
@ -522,5 +524,16 @@ void array_func(int n, float a[n], St s[2]) {
for (int i = 0; i < 10; ++i)
;
}
#else
// LOOP-LABEL: loop
void loop() {
// LOOP: call i8* @__kmpc_omp_task_alloc(
// LOOP: call void @__kmpc_taskloop(
int i;
#pragma omp taskloop lastprivate(i)
for (i = 0; i < 10; ++i)
;
}
#endif