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// Check no warnings/errors
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fopenmp -fsyntax-only -verify %s
// expected-no-diagnostics
// Check AST and unparsing
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fopenmp -ast-dump %s | FileCheck %s --check-prefix=DUMP
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fopenmp -ast-print %s | FileCheck %s --check-prefix=PRINT --match-full-lines
// Check same results after serialization round-trip
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fopenmp -emit-pch -o %t %s
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fopenmp -include-pch %t -ast-dump-all %s | FileCheck %s --check-prefix=DUMP
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fopenmp -include-pch %t -ast-print %s | FileCheck %s --check-prefix=PRINT --match-full-lines
#ifndef HEADER
#define HEADER
// placeholder for loop body code.
void body(...);
// PRINT-LABEL: void func_unroll() {
// DUMP-LABEL: FunctionDecl {{.*}} func_unroll
void func_unroll() {
// PRINT: #pragma omp unroll
// DUMP: OMPUnrollDirective
#pragma omp unroll
// PRINT-NEXT: for (int i = 7; i < 17; i += 3)
// DUMP-NEXT: ForStmt
for (int i = 7; i < 17; i += 3)
// PRINT-NEXT: body(i);
// DUMP: CallExpr
body(i);
}
// PRINT-LABEL: void func_unroll_full() {
// DUMP-LABEL: FunctionDecl {{.*}} func_unroll_full
void func_unroll_full() {
// PRINT: #pragma omp unroll full
// DUMP: OMPUnrollDirective
// DUMP-NEXT: OMPFullClause
#pragma omp unroll full
// PRINT-NEXT: for (int i = 7; i < 17; i += 3)
// DUMP-NEXT: ForStmt
for (int i = 7; i < 17; i += 3)
// PRINT-NEXT: body(i);
// DUMP: CallExpr
body(i);
}
// PRINT-LABEL: void func_unroll_partial() {
// DUMP-LABEL: FunctionDecl {{.*}} func_unroll_partial
void func_unroll_partial() {
// PRINT: #pragma omp unroll partial
// DUMP: OMPUnrollDirective
// DUMP-NEXT: OMPPartialClause
// DUMP-NEXT: <<<NULL>>>
#pragma omp unroll partial
// PRINT-NEXT: for (int i = 7; i < 17; i += 3)
// DUMP-NEXT: ForStmt
for (int i = 7; i < 17; i += 3)
// PRINT: body(i);
// DUMP: CallExpr
body(i);
}
// PRINT-LABEL: void func_unroll_partial_factor() {
// DUMP-LABEL: FunctionDecl {{.*}} func_unroll_partial_factor
void func_unroll_partial_factor() {
// PRINT: #pragma omp unroll partial(4)
// DUMP: OMPUnrollDirective
// DUMP-NEXT: OMPPartialClause
// DUMP-NEXT: ConstantExpr
// DUMP-NEXT: value: Int 4
// DUMP-NEXT: IntegerLiteral {{.*}} 4
#pragma omp unroll partial(4)
// PRINT-NEXT: for (int i = 7; i < 17; i += 3)
// DUMP-NEXT: ForStmt
for (int i = 7; i < 17; i += 3)
// PRINT-NEXT: body(i);
// DUMP: CallExpr
body(i);
}
// PRINT-LABEL: void func_unroll_partial_factor_for() {
// DUMP-LABEL: FunctionDecl {{.*}} func_unroll_partial_factor_for
void func_unroll_partial_factor_for() {
// PRINT: #pragma omp for
// DUMP: OMPForDirective
#pragma omp for
// PRINT: #pragma omp unroll partial(2)
// DUMP: OMPUnrollDirective
// DUMP-NEXT: OMPPartialClause
#pragma omp unroll partial(2)
// PRINT-NEXT: for (int i = 7; i < 17; i += 3)
// DUMP: ForStmt
for (int i = 7; i < 17; i += 3)
// PRINT-NEXT: body(i);
// DUMP: CallExpr
body(i);
}
// PRINT-LABEL: template <typename T, T Start, T End, T Step, int Factor> void unroll_templated() {
// DUMP-LABEL: FunctionTemplateDecl {{.*}} unroll_templated
template<typename T, T Start, T End, T Step, int Factor>
void unroll_templated() {
// PRINT: #pragma omp unroll partial(Factor)
// DUMP: OMPUnrollDirective
// DUMP-NEXT: OMPPartialClause
// DUMP-NEXT: DeclRefExpr {{.*}} 'Factor' 'int'
#pragma omp unroll partial(Factor)
// PRINT-NEXT: for (T i = Start; i < End; i += Step)
// DUMP-NEXT: ForStmt
for (T i = Start; i < End; i += Step)
// PRINT-NEXT: body(i);
// DUMP: CallExpr
body(i);
}
void unroll_template() {
unroll_templated<int,0,1024,1,4>();
}
// PRINT-LABEL: template <int Factor> void unroll_templated_factor(int start, int stop, int step) {
// DUMP-LABEL: FunctionTemplateDecl {{.*}} unroll_templated_factor
template <int Factor>
void unroll_templated_factor(int start, int stop, int step) {
// PRINT: #pragma omp unroll partial(Factor)
// DUMP: OMPUnrollDirective
// DUMP-NEXT: OMPPartialClause
// DUMP-NEXT: DeclRefExpr {{.*}} 'Factor' 'int'
#pragma omp unroll partial(Factor)
// PRINT-NEXT: for (int i = start; i < stop; i += step)
// DUMP-NEXT: ForStmt
for (int i = start; i < stop; i += step)
// PRINT-NEXT: body(i);
// DUMP: CallExpr
body(i);
}
void unroll_template_factor() {
unroll_templated_factor<4>(0, 42, 2);
}
#endif
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