From: Alexey Bataev <a.bataev@hotmail.com>
Date: Mon, 16 Dec 2019 15:27:39 +0000 (-0500)
Subject: [OPENMP50]Add if clause in target teams distribute parallel for simd directive.
X-Git-Tag: llvmorg-11-init~2054
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fd0c91bab184e50e548b9daca4b8cfb0719ff959;p=platform%2Fupstream%2Fllvm.git

[OPENMP50]Add if clause in target teams distribute parallel for simd directive.

According to OpenMP 5.0, if clause can be used in for simd directive. If
condition in the if clause if false, the non-vectorized version of the
loop must be executed.
---

diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index e02c1c5..9033997 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -4778,6 +4778,8 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
         ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
     AllowedNameModifiers.push_back(OMPD_target);
     AllowedNameModifiers.push_back(OMPD_parallel);
+    if (LangOpts.OpenMP >= 50)
+      AllowedNameModifiers.push_back(OMPD_simd);
     break;
   case OMPD_target_teams_distribute_simd:
     Res = ActOnOpenMPTargetTeamsDistributeSimdDirective(
@@ -10762,8 +10764,14 @@ static OpenMPDirectiveKind getOpenMPCaptureRegionForClause(
       if (NameModifier == OMPD_unknown || NameModifier == OMPD_parallel)
         CaptureRegion = OMPD_target;
       break;
-    case OMPD_target_teams_distribute_parallel_for:
     case OMPD_target_teams_distribute_parallel_for_simd:
+      if (OpenMPVersion >= 50 &&
+          (NameModifier == OMPD_unknown || NameModifier == OMPD_simd)) {
+        CaptureRegion = OMPD_parallel;
+        break;
+      }
+      LLVM_FALLTHROUGH;
+    case OMPD_target_teams_distribute_parallel_for:
       // If this clause applies to the nested 'parallel' region, capture within
       // the 'teams' region, otherwise do not capture.
       if (NameModifier == OMPD_unknown || NameModifier == OMPD_parallel)
diff --git a/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_codegen.cpp b/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_codegen.cpp
index 79ae4fe..8a8d64e 100644
--- a/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_codegen.cpp
+++ b/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_codegen.cpp
@@ -1,10 +1,16 @@
-// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s --check-prefix CHECK --check-prefix OMP45
 // RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -std=c++11 -triple %itanium_abi_triple -emit-pch -o %t %s
-// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CHECK --check-prefix OMP45
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=50 -DOMP5 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s --check-prefix CHECK --check-prefix OMP50
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=50 -DOMP5 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -std=c++11 -triple %itanium_abi_triple -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=50 -DOMP5 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CHECK --check-prefix OMP50
 
 // RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s --check-prefix SIMD-ONLY
 // RUN: %clang_cc1 -fopenmp-simd -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -std=c++11 -triple %itanium_abi_triple -emit-pch -o %t %s
 // RUN: %clang_cc1 -fopenmp-simd -fopenmp-version=45 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix SIMD-ONLY
+// RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=50 -DOMP5 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s --check-prefix SIMD-ONLY
+// RUN: %clang_cc1 -fopenmp-simd -fopenmp-version=50 -DOMP5 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -std=c++11 -triple %itanium_abi_triple -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp-simd -fopenmp-version=50 -DOMP5 -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple %itanium_abi_triple -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix SIMD-ONLY
 // SIMD-ONLY-NOT: {{__kmpc|__tgt}}
 
 // expected-no-diagnostics
@@ -28,7 +34,11 @@ void gtid_test() {
 // CHECK: call void @__kmpc_push_target_tripcount(i64 -1, i64 100)
 // CHECK: call i{{[0-9]+}} @__tgt_target_teams(
 // CHECK: call void [[OFFLOADING_FUN_1:@.+]](
+#ifdef OMP5
+#pragma omp target teams distribute parallel for simd if(simd: true)
+#else
 #pragma omp target teams distribute parallel for simd
+#endif // OMP5
   for(int i = 0 ; i < 100; i++) {}
   // CHECK: define internal void [[OFFLOADING_FUN_0]](
   // CHECK: call {{.*}}void {{.+}} @__kmpc_fork_teams({{.+}}, i32 0, {{.+}}* [[OMP_TEAMS_OUTLINED_0:@.+]] to {{.+}})
@@ -132,7 +142,8 @@ int main() {
     // CHECK: define{{.+}} void [[OMP_TEAMS_OUTLINED_2]](
 
     // CHECK: call void @__kmpc_for_static_init_4(
-    // CHECK: call void {{.+}} @__kmpc_fork_call(%{{.+}}* @{{.+}}, i{{.+}} 2, {{.+}}* [[OMP_OUTLINED_4:@.+]] to void
+    // OMP45: call void {{.+}} @__kmpc_fork_call(%{{.+}}* @{{.+}}, i{{.+}} 2, {{.+}}* [[OMP_OUTLINED_4:@.+]] to void
+    // OMP50: call void {{.+}} @__kmpc_fork_call(%{{.+}}* @{{.+}}, i{{.+}} 3, {{.+}}* [[OMP_OUTLINED_4:@.+]] to void
     // CHECK: call void @__kmpc_serialized_parallel(
     // CHECK: call void [[OMP_OUTLINED_4:@.+]](
     // CHECK: call void @__kmpc_end_serialized_parallel(
@@ -184,3 +195,8 @@ int main() {
 // CHECK: call void @__kmpc_for_static_fini(
 // CHECK: ret void
 #endif
+
+// OMP45-NOT: !{!"llvm.loop.vectorize.enable", i1 false}
+// CHECK-DAG: !{!"llvm.loop.vectorize.enable", i1 true}
+// OMP45-NOT: !{!"llvm.loop.vectorize.enable", i1 false}
+// OMP50-DAG: !{!"llvm.loop.vectorize.enable", i1 false}
diff --git a/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_messages.cpp b/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_messages.cpp
index 259d92c..4701f5c6e 100644
--- a/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_messages.cpp
+++ b/clang/test/OpenMP/target_teams_distribute_parallel_for_simd_if_messages.cpp
@@ -1,6 +1,8 @@
-// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -ferror-limit 100 %s -Wuninitialized
+// RUN: %clang_cc1 -verify=expected,omp45 -fopenmp -fopenmp-version=45 -ferror-limit 100 %s -Wuninitialized
+// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp -fopenmp-version=50 -ferror-limit 100 %s -Wuninitialized
 
-// RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=45 -ferror-limit 100 %s -Wuninitialized
+// RUN: %clang_cc1 -verify=expected,omp45 -fopenmp-simd -fopenmp-version=45 -ferror-limit 100 %s -Wuninitialized
+// RUN: %clang_cc1 -verify=expected,omp50 -fopenmp-simd -fopenmp-version=50 -ferror-limit 100 %s -Wuninitialized
 
 void foo() {
 }
@@ -60,15 +62,15 @@ int tmain(T argc, S **argv) {
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(target: argc)
   for (i = 0; i < argc; ++i) foo();
-#pragma omp target teams distribute parallel for simd if(parallel : argc) if (for:argc) // expected-error {{directive name modifier 'for' is not allowed for '#pragma omp target teams distribute parallel for simd'}}
+#pragma omp target teams distribute parallel for simd if(parallel : argc) if (simd:argc) // omp45-error {{directive name modifier 'simd' is not allowed for '#pragma omp target teams distribute parallel for simd'}}
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(parallel : argc) if (parallel:argc) // expected-error {{directive '#pragma omp target teams distribute parallel for simd' cannot contain more than one 'if' clause with 'parallel' name modifier}}
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(target: argc) if (target:argc) // expected-error {{directive '#pragma omp target teams distribute parallel for simd' cannot contain more than one 'if' clause with 'target' name modifier}}
   for (i = 0; i < argc; ++i) foo();
-#pragma omp target teams distribute parallel for simd if(parallel : argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} expected-error {{expected 'target' directive name modifier}}
+#pragma omp target teams distribute parallel for simd if(parallel : argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} omp45-error {{expected 'target' directive name modifier}} omp50-error {{expected one of 'target' or 'simd' directive name modifiers}}
   for (i = 0; i < argc; ++i) foo();
-#pragma omp target teams distribute parallel for simd if(target: argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} expected-error {{expected 'parallel' directive name modifier}}
+#pragma omp target teams distribute parallel for simd if(target: argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} omp45-error {{expected 'parallel' directive name modifier}} omp50-error {{expected one of 'parallel' or 'simd' directive name modifiers}}
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(distribute : argc) // expected-error {{directive name modifier 'distribute' is not allowed for '#pragma omp target teams distribute parallel for simd'}}
   for (i = 0; i < argc; ++i) foo();
@@ -122,15 +124,15 @@ int main(int argc, char **argv) {
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(target: argc)
   for (i = 0; i < argc; ++i) foo();
-#pragma omp target teams distribute parallel for simd if(parallel : argc) if (for:argc) // expected-error {{directive name modifier 'for' is not allowed for '#pragma omp target teams distribute parallel for simd'}}
+#pragma omp target teams distribute parallel for simd if(parallel : argc) if (simd:argc) // omp45-error {{directive name modifier 'simd' is not allowed for '#pragma omp target teams distribute parallel for simd'}}
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(parallel : argc) if (parallel:argc) // expected-error {{directive '#pragma omp target teams distribute parallel for simd' cannot contain more than one 'if' clause with 'parallel' name modifier}}
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(target: argc) if (target:argc) // expected-error {{directive '#pragma omp target teams distribute parallel for simd' cannot contain more than one 'if' clause with 'target' name modifier}}
   for (i = 0; i < argc; ++i) foo();
-#pragma omp target teams distribute parallel for simd if(parallel : argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} expected-error {{expected 'target' directive name modifier}}
+#pragma omp target teams distribute parallel for simd if(parallel : argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} omp45-error {{expected 'target' directive name modifier}} omp50-error {{expected one of 'target' or 'simd' directive name modifiers}}
   for (i = 0; i < argc; ++i) foo();
-#pragma omp target teams distribute parallel for simd if(target: argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} expected-error {{expected 'parallel' directive name modifier}}
+#pragma omp target teams distribute parallel for simd if(target: argc) if (argc) // expected-note {{previous clause with directive name modifier specified here}} omp45-error {{expected 'parallel' directive name modifier}} omp50-error {{expected one of 'parallel' or 'simd' directive name modifiers}}
   for (i = 0; i < argc; ++i) foo();
 #pragma omp target teams distribute parallel for simd if(distribute : argc) // expected-error {{directive name modifier 'distribute' is not allowed for '#pragma omp target teams distribute parallel for simd'}}
   for (i = 0; i < argc; ++i) foo();