Commit 2908fc0d authored by cchen's avatar cchen
Browse files

[OpenMP] Use irbuilder as default for masked and master construct 

Use irbuilder as default and remove redundant Clang codegen for masked construct and master construct.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D100874
parent 6da35036

clang/lib/CodeGen/CGStmtOpenMP.cpp

+35 −61
Original line number Diff line number Diff line
@@ -4030,7 +4030,6 @@ static void emitMaster(CodeGenFunction &CGF, const OMPExecutableDirective &S) { 
}



void CodeGenFunction::EmitOMPMasterDirective(const OMPMasterDirective &S) {

  if (CGM.getLangOpts().OpenMPIRBuilder) {

  llvm::OpenMPIRBuilder &OMPBuilder = CGM.getOpenMPRuntime().getOMPBuilder();

  using InsertPointTy = llvm::OpenMPIRBuilder::InsertPointTy;
@@ -4051,28 +4050,9 @@ void CodeGenFunction::EmitOMPMasterDirective(const OMPMasterDirective &S) { 
  LexicalScope Scope(*this, S.getSourceRange());

  EmitStopPoint(&S);

  Builder.restoreIP(OMPBuilder.createMaster(Builder, BodyGenCB, FiniCB));



    return;

  }

  LexicalScope Scope(*this, S.getSourceRange());

  EmitStopPoint(&S);

  emitMaster(*this, S);

}



static void emitMasked(CodeGenFunction &CGF, const OMPExecutableDirective &S) {

  auto &&CodeGen = [&S](CodeGenFunction &CGF, PrePostActionTy &Action) {

    Action.Enter(CGF);

    CGF.EmitStmt(S.getRawStmt());

  };

  Expr *Filter = nullptr;

  if (const auto *FilterClause = S.getSingleClause<OMPFilterClause>())

    Filter = FilterClause->getThreadID();

  CGF.CGM.getOpenMPRuntime().emitMaskedRegion(CGF, CodeGen, S.getBeginLoc(),

                                              Filter);

}



void CodeGenFunction::EmitOMPMaskedDirective(const OMPMaskedDirective &S) {

  if (CGM.getLangOpts().OpenMPIRBuilder) {

  llvm::OpenMPIRBuilder &OMPBuilder = CGM.getOpenMPRuntime().getOMPBuilder();

  using InsertPointTy = llvm::OpenMPIRBuilder::InsertPointTy;
@@ -4100,12 +4080,6 @@ void CodeGenFunction::EmitOMPMaskedDirective(const OMPMaskedDirective &S) { 
  EmitStopPoint(&S);

  Builder.restoreIP(

      OMPBuilder.createMasked(Builder, BodyGenCB, FiniCB, FilterVal));



    return;

  }

  LexicalScope Scope(*this, S.getSourceRange());

  EmitStopPoint(&S);

  emitMasked(*this, S);

}



void CodeGenFunction::EmitOMPCriticalDirective(const OMPCriticalDirective &S) {

clang/test/OpenMP/masked_codegen.cpp

+44 −49
Original line number Diff line number Diff line 
// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=51 -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s --check-prefixes=ALL,NORMAL

// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=51 -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s

// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s

// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=ALL,NORMAL

// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s

// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -fopenmp-version=51 -fexceptions -fcxx-exceptions -debug-info-kind=line-tables-only -x c++ -emit-llvm %s -o - | FileCheck %s --check-prefix=TERM_DEBUG

// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=51 -fopenmp-enable-irbuilder -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s --check-prefixes=ALL,IRBUILDER

// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -fopenmp-enable-irbuilder -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s

// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -fopenmp-enable-irbuilder -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=ALL,IRBUILDER



// RUN: %clang_cc1 -verify -fopenmp-simd -fopenmp-version=51 -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck --check-prefix SIMD-ONLY0 %s

// RUN: %clang_cc1 -fopenmp-simd -fopenmp-version=51 -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
@@ -15,68 +12,66 @@ 
#ifndef HEADER

#define HEADER



// ALL:       [[IDENT_T_TY:%.+]] = type { i32, i32, i32, i32, i8* }

// CHECK:       [[IDENT_T_TY:%.+]] = type { i32, i32, i32, i32, i8* }



// ALL:       define {{.*}}void [[FOO:@.+]]()

// CHECK:       define {{.*}}void [[FOO:@.+]]()



void foo() { extern void mayThrow(); mayThrow(); }



// ALL-LABEL: @main

// CHECK-LABEL: @main

// TERM_DEBUG-LABEL: @main

int main() {

  // ALL:      			[[A_ADDR:%.+]] = alloca i8

  // CHECK:      			[[A_ADDR:%.+]] = alloca i8

  char a;



// ALL:       			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// ALL:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], i32 0)

// ALL-NEXT:  			[[IS_MASKED:%.+]] = icmp ne i32 [[RES]], 0

// ALL-NEXT:  			br i1 [[IS_MASKED]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// ALL:       			[[THEN]]

// ALL-NEXT:  			store i8 2, i8* [[A_ADDR]]

// ALL-NEXT:  			call {{.*}}void @__kmpc_end_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// ALL-NEXT:  			br label {{%?}}[[EXIT]]

// ALL:       			[[EXIT]]

// CHECK:       			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// CHECK:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], i32 0)

// CHECK-NEXT:  			[[IS_MASKED:%.+]] = icmp ne i32 [[RES]], 0

// CHECK-NEXT:  			br i1 [[IS_MASKED]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// CHECK:       			[[THEN]]

// CHECK-NEXT:  			store i8 2, i8* [[A_ADDR]]

// CHECK-NEXT:  			call {{.*}}void @__kmpc_end_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// CHECK-NEXT:  			br label {{%?}}[[EXIT]]

// CHECK:       			[[EXIT]]

#pragma omp masked

  a = 2;

// IRBUILDER: 			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// ALL:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], i32 2)

// ALL-NEXT:  			[[IS_MASKED:%.+]] = icmp ne i32 [[RES]], 0

// ALL-NEXT:  			br i1 [[IS_MASKED]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// ALL:       			[[THEN]]

// IRBUILDER-NEXT:  call {{.*}}void [[FOO]]()

// NORMAL-NEXT:  		invoke {{.*}}void [[FOO]]()

// ALL:       			call {{.*}}void @__kmpc_end_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// ALL-NEXT:  			br label {{%?}}[[EXIT]]

// ALL:       			[[EXIT]]

// CHECK: 			        [[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// CHECK:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], i32 2)

// CHECK-NEXT:  			[[IS_MASKED:%.+]] = icmp ne i32 [[RES]], 0

// CHECK-NEXT:  			br i1 [[IS_MASKED]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// CHECK:       			[[THEN]]

// CHECK-NEXT:                          call {{.*}}void [[FOO]]()

// CHECK:       			call {{.*}}void @__kmpc_end_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// CHECK-NEXT:  			br label {{%?}}[[EXIT]]

// CHECK:       			[[EXIT]]

#pragma omp masked filter(2)

  foo();

// ALL:                         store i32 9, i32* [[X:.+]],

// ALL:                         [[X_VAL:%.+]] = load i32, i32* [[X]]

// IRBUILDER: 			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// ALL:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], i32 [[X_VAL]])

// ALL-NEXT:  			[[IS_MASKED:%.+]] = icmp ne i32 [[RES]], 0

// ALL-NEXT:  			br i1 [[IS_MASKED]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// ALL:       			[[THEN]]

// IRBUILDER-NEXT:  call {{.*}}void [[FOO]]()

// NORMAL-NEXT:  		invoke {{.*}}void [[FOO]]()

// ALL:       			call {{.*}}void @__kmpc_end_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// ALL-NEXT:  			br label {{%?}}[[EXIT]]

// ALL:       			[[EXIT]]

// CHECK:                               store i32 9, i32* [[X:.+]],

// CHECK:                               [[X_VAL:%.+]] = load i32, i32* [[X]]

// CHECK: 			        [[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// CHECK:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]], i32 [[X_VAL]])

// CHECK-NEXT:  			[[IS_MASKED:%.+]] = icmp ne i32 [[RES]], 0

// CHECK-NEXT:  			br i1 [[IS_MASKED]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// CHECK:       			[[THEN]]

// CHECK-NEXT:                          call {{.*}}void [[FOO]]()

// CHECK:       			call {{.*}}void @__kmpc_end_masked([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// CHECK-NEXT:  			br label {{%?}}[[EXIT]]

// CHECK:       			[[EXIT]]

  int x = 9;

#pragma omp masked filter(x)

  foo();

  // ALL-NOT:   call i32 @__kmpc_masked

  // ALL-NOT:   call void @__kmpc_end_masked

  // CHECK-NOT:   call i32 @__kmpc_masked

  // CHECK-NOT:   call void @__kmpc_end_masked

  return a;

}



// ALL-LABEL:        lambda_masked

// CHECK-LABEL:        lambda_masked

// TERM_DEBUG-LABEL: lambda_masked

void lambda_masked(int a, int b) {

  auto l = [=]() {

#pragma omp masked

    {

      // ALL: call i32 @__kmpc_masked(

      // CHECK: call i32 @__kmpc_masked(

      int c = a + b;

    }

  };
@@ -87,7 +82,7 @@ void lambda_masked(int a, int b) { 
#pragma omp parallel

#pragma omp masked filter(1)

    {

      // ALL: call i32 @__kmpc_masked(

      // CHECK: call i32 @__kmpc_masked(

      int c = a + b;

    }

  };
@@ -99,7 +94,7 @@ void lambda_masked(int a, int b) { 
#pragma omp parallel

#pragma omp masked filter(yy)

    {

      // ALL: call i32 @__kmpc_masked(

      // CHECK: call i32 @__kmpc_masked(

      int c = a + b;

    }

  };
@@ -107,12 +102,12 @@ void lambda_masked(int a, int b) { 
  l2(y);

}



// ALL-LABEL:      parallel_masked

// CHECK-LABEL:      parallel_masked

// TERM_DEBUG-LABEL: parallel_masked

void parallel_masked() {

#pragma omp parallel

#pragma omp masked filter(1)

  // TERM_DEBUG-NOT: __kmpc_global_thread_num

  // TERM_DEBUG: __kmpc_global_thread_num

  // TERM_DEBUG:     call i32 @__kmpc_masked({{.+}}), !dbg [[DBG_LOC_START:![0-9]+]]

  // TERM_DEBUG:     invoke void {{.*}}foo{{.*}}()

  // TERM_DEBUG:     unwind label %[[TERM_LPAD:.+]],
@@ -126,7 +121,7 @@ void parallel_masked() { 
  int x;

#pragma omp parallel

#pragma omp masked filter(x)

  // TERM_DEBUG-NOT: __kmpc_global_thread_num

  // TERM_DEBUG: __kmpc_global_thread_num

  // TERM_DEBUG:     call i32 @__kmpc_masked({{.+}}), !dbg [[DBG_LOC_START:![0-9]+]]

  // TERM_DEBUG:     invoke void {{.*}}foo{{.*}}()

  // TERM_DEBUG:     unwind label %[[TERM_LPAD:.+]],

clang/test/OpenMP/master_codegen.cpp

+32 −36
Original line number Diff line number Diff line 
// RUN: %clang_cc1 -verify -fopenmp -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s --check-prefixes=ALL,NORMAL

// RUN: %clang_cc1 -verify -fopenmp -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s

// RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s

// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=ALL,NORMAL

// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s

// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -fexceptions -fcxx-exceptions -debug-info-kind=line-tables-only -x c++ -emit-llvm %s -o - | FileCheck %s --check-prefix=TERM_DEBUG

// RUN: %clang_cc1 -verify -fopenmp -fopenmp-enable-irbuilder -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck %s --check-prefixes=ALL,IRBUILDER

// RUN: %clang_cc1 -fopenmp -fopenmp-enable-irbuilder -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s

// RUN: %clang_cc1 -fopenmp -fopenmp-enable-irbuilder -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefixes=ALL,IRBUILDER



// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -emit-llvm %s -fexceptions -fcxx-exceptions -o - | FileCheck --check-prefix SIMD-ONLY0 %s

// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
@@ -15,53 +12,52 @@ 
#ifndef HEADER

#define HEADER



// ALL:       [[IDENT_T_TY:%.+]] = type { i32, i32, i32, i32, i8* }

// CHECK:       [[IDENT_T_TY:%.+]] = type { i32, i32, i32, i32, i8* }



// ALL:       define {{.*}}void [[FOO:@.+]]()

// CHECK:       define {{.*}}void [[FOO:@.+]]()



void foo() { extern void mayThrow(); mayThrow(); }



// ALL-LABEL: @main

// CHECK-LABEL: @main

// TERM_DEBUG-LABEL: @main

int main() {

  // ALL:      			[[A_ADDR:%.+]] = alloca i8

  // CHECK:      			[[A_ADDR:%.+]] = alloca i8

  char a;



// ALL:       			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// ALL:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// ALL-NEXT:  			[[IS_MASTER:%.+]] = icmp ne i32 [[RES]], 0

// ALL-NEXT:  			br i1 [[IS_MASTER]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// ALL:       			[[THEN]]

// ALL-NEXT:  			store i8 2, i8* [[A_ADDR]]

// ALL-NEXT:  			call {{.*}}void @__kmpc_end_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// ALL-NEXT:  			br label {{%?}}[[EXIT]]

// ALL:       			[[EXIT]]

// CHECK:       			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// CHECK:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// CHECK-NEXT:  			[[IS_MASTER:%.+]] = icmp ne i32 [[RES]], 0

// CHECK-NEXT:  			br i1 [[IS_MASTER]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// CHECK:       			[[THEN]]

// CHECK-NEXT:  			store i8 2, i8* [[A_ADDR]]

// CHECK-NEXT:  			call {{.*}}void @__kmpc_end_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// CHECK-NEXT:  			br label {{%?}}[[EXIT]]

// CHECK:       			[[EXIT]]

#pragma omp master

  a = 2;

// IRBUILDER: 			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// ALL:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// ALL-NEXT:  			[[IS_MASTER:%.+]] = icmp ne i32 [[RES]], 0

// ALL-NEXT:  			br i1 [[IS_MASTER]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// ALL:       			[[THEN]]

// IRBUILDER-NEXT:  call {{.*}}void [[FOO]]()

// NORMAL-NEXT:  		invoke {{.*}}void [[FOO]]()

// ALL:       			call {{.*}}void @__kmpc_end_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// ALL-NEXT:  			br label {{%?}}[[EXIT]]

// ALL:       			[[EXIT]]

// CHECK: 			[[GTID:%.+]] = call {{.*}}i32 @__kmpc_global_thread_num([[IDENT_T_TY]]* [[DEFAULT_LOC:@.+]])

// CHECK:       			[[RES:%.+]] = call {{.*}}i32 @__kmpc_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// CHECK-NEXT:  			[[IS_MASTER:%.+]] = icmp ne i32 [[RES]], 0

// CHECK-NEXT:  			br i1 [[IS_MASTER]], label {{%?}}[[THEN:.+]], label {{%?}}[[EXIT:.+]]

// CHECK:       			[[THEN]]

// CHECK-NEXT:                  call {{.*}}void [[FOO]]()

// CHECK:       			call {{.*}}void @__kmpc_end_master([[IDENT_T_TY]]* [[DEFAULT_LOC]], i32 [[GTID]])

// CHECK-NEXT:  			br label {{%?}}[[EXIT]]

// CHECK:       			[[EXIT]]

#pragma omp master

  foo();

  // ALL-NOT:   call i32 @__kmpc_master

  // ALL-NOT:   call void @__kmpc_end_master

  // CHECK-NOT:   call i32 @__kmpc_master

  // CHECK-NOT:   call void @__kmpc_end_master

  return a;

}



// ALL-LABEL:        lambda_master

// CHECK-LABEL:        lambda_master

// TERM_DEBUG-LABEL: lambda_master

void lambda_master(int a, int b) {

  auto l = [=]() {

#pragma omp master

    {

      // ALL: call i32 @__kmpc_master(

      // CHECK: call i32 @__kmpc_master(

      int c = a + b;

    }

  };
@@ -72,7 +68,7 @@ void lambda_master(int a, int b) { 
#pragma omp parallel

#pragma omp master

    {

      // ALL: call i32 @__kmpc_master(

      // CHECK: call i32 @__kmpc_master(

      int c = a + b;

    }

  };
@@ -82,7 +78,7 @@ void lambda_master(int a, int b) { 
  auto l2 = [=]() {

#pragma omp parallel master

    {

      // ALL: call i32 @__kmpc_master(

      // CHECK: call i32 @__kmpc_master(

      int c = a + b;

    }

  };
@@ -90,12 +86,12 @@ void lambda_master(int a, int b) { 
  l2();

}



// ALL-LABEL:      parallel_master

// CHECK-LABEL:      parallel_master

// TERM_DEBUG-LABEL: parallel_master

void parallel_master() {

#pragma omp parallel

#pragma omp master

  // TERM_DEBUG-NOT: __kmpc_global_thread_num

  // TERM_DEBUG:     __kmpc_global_thread_num

  // TERM_DEBUG:     call i32 @__kmpc_master({{.+}}), !dbg [[DBG_LOC_START:![0-9]+]]

  // TERM_DEBUG:     invoke void {{.*}}foo{{.*}}()

  // TERM_DEBUG:     unwind label %[[TERM_LPAD:.+]],