llvm-project/clang/test/CodeGenCXX/pragma-loop-distribute.cpp

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// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
void while_test(int *List, int Length, int *List2, int Length2) {
// CHECK: define {{.*}} @_Z10while_test
int i = 0;
#pragma clang loop distribute(enable)
while (i < Length) {
// CHECK: br label {{.*}}, !llvm.loop ![[LOOP_1:.*]]
List[i] = i * 2;
i++;
}
i = 0;
while (i < Length2) {
// CHECK-NOT: br label {{.*}}, !llvm.loop
List2[i] = i * 2;
i++;
}
}
// CHECK: ![[LOOP_1]] = distinct !{![[LOOP_1]], ![[DISTRIBUTE_ENABLE:.*]]}
// CHECK: ![[DISTRIBUTE_ENABLE]] = !{!"llvm.loop.distribute.enable", i1 true}