Moved CPP CodeGen tests into CodeGenCXX.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@239362 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 191 insertions, 0 deletions

diff --git a/test/CodeGenCXX/pragma-loop.cpp b/test/CodeGenCXX/pragma-loop.cpp
new file mode 100644
index 0000000000..dd40c1d726
--- /dev/null
+++ b/test/CodeGenCXX/pragma-loop.cpp
@@ -0,0 +1,191 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
+
+// Verify while loop is recognized after sequence of pragma clang loop directives.
+void while_test(int *List, int Length) {
+  // CHECK: define {{.*}} @_Z10while_test
+  int i = 0;
+
+#pragma clang loop vectorize(enable)
+#pragma clang loop interleave_count(4)
+#pragma clang loop vectorize_width(4)
+#pragma clang loop unroll(full)
+  while (i < Length) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_1:.*]]
+    List[i] = i * 2;
+    i++;
+  }
+}
+
+// Verify do loop is recognized after multi-option pragma clang loop directive.
+void do_test(int *List, int Length) {
+  int i = 0;
+
+#pragma clang loop vectorize_width(8) interleave_count(4) unroll(disable)
+  do {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_2:.*]]
+    List[i] = i * 2;
+    i++;
+  } while (i < Length);
+}
+
+enum struct Tuner : short { Interleave = 4, Unroll = 8 };
+
+// Verify for loop is recognized after sequence of pragma clang loop directives.
+void for_test(int *List, int Length) {
+#pragma clang loop interleave(enable)
+#pragma clang loop interleave_count(static_cast<int>(Tuner::Interleave))
+#pragma clang loop unroll_count(static_cast<int>(Tuner::Unroll))
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_3:.*]]
+    List[i] = i * 2;
+  }
+}
+
+// Verify c++11 for range loop is recognized after
+// sequence of pragma clang loop directives.
+void for_range_test() {
+  double List[100];
+
+#pragma clang loop vectorize_width(2) interleave_count(2)
+  for (int i : List) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_4:.*]]
+    List[i] = i;
+  }
+}
+
+// Verify disable pragma clang loop directive generates correct metadata
+void disable_test(int *List, int Length) {
+#pragma clang loop vectorize(disable) unroll(disable)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_5:.*]]
+    List[i] = i * 2;
+  }
+}
+
+#define VECWIDTH 2
+#define INTCOUNT 2
+#define UNROLLCOUNT 8
+
+// Verify defines are correctly resolved in pragma clang loop directive
+void for_define_test(int *List, int Length, int Value) {
+#pragma clang loop vectorize_width(VECWIDTH) interleave_count(INTCOUNT)
+#pragma clang loop unroll_count(UNROLLCOUNT)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_6:.*]]
+    List[i] = i * Value;
+  }
+}
+
+// Verify constant expressions are handled correctly.
+void for_contant_expression_test(int *List, int Length) {
+#pragma clang loop vectorize_width(1 + 4)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_7:.*]]
+    List[i] = i;
+  }
+
+#pragma clang loop vectorize_width(3 + VECWIDTH)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_8:.*]]
+    List[i] += i;
+  }
+}
+
+// Verify metadata is generated when template is used.
+template <typename A>
+void for_template_test(A *List, int Length, A Value) {
+#pragma clang loop vectorize_width(8) interleave_count(8) unroll_count(8)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_9:.*]]
+    List[i] = i * Value;
+  }
+}
+
+// Verify define is resolved correctly when template is used.
+template <typename A, typename T>
+void for_template_define_test(A *List, int Length, A Value) {
+  const T VWidth = VECWIDTH;
+  const T ICount = INTCOUNT;
+  const T UCount = UNROLLCOUNT;
+#pragma clang loop vectorize_width(VWidth) interleave_count(ICount)
+#pragma clang loop unroll_count(UCount)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_10:.*]]
+    List[i] = i * Value;
+  }
+}
+
+// Verify templates and constant expressions are handled correctly.
+template <typename A, int V, int I, int U>
+void for_template_constant_expression_test(A *List, int Length) {
+#pragma clang loop vectorize_width(V) interleave_count(I) unroll_count(U)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_11:.*]]
+    List[i] = i;
+  }
+
+#pragma clang loop vectorize_width(V * 2 + VECWIDTH) interleave_count(I * 2 + INTCOUNT) unroll_count(U * 2 + UNROLLCOUNT)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_12:.*]]
+    List[i] += i;
+  }
+
+  const int Scale = 4;
+#pragma clang loop vectorize_width(Scale * V) interleave_count(Scale * I) unroll_count(Scale * U)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_13:.*]]
+    List[i] += i;
+  }
+
+#pragma clang loop vectorize_width((Scale * V) + 2)
+  for (int i = 0; i < Length; i++) {
+    // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_14:.*]]
+    List[i] += i;
+  }
+}
+
+#undef VECWIDTH
+#undef INTCOUNT
+#undef UNROLLCOUNT
+
+// Use templates defined above. Test verifies metadata is generated correctly.
+void template_test(double *List, int Length) {
+  double Value = 10;
+
+  for_template_test<double>(List, Length, Value);
+  for_template_define_test<double, int>(List, Length, Value);
+  for_template_constant_expression_test<double, 2, 4, 8>(List, Length);
+}
+
+// CHECK: ![[LOOP_1]] = distinct !{![[LOOP_1]], ![[UNROLL_FULL:.*]], ![[WIDTH_4:.*]], ![[INTERLEAVE_4:.*]], ![[INTENABLE_1:.*]]}
+// CHECK: ![[UNROLL_FULL]] = !{!"llvm.loop.unroll.full"}
+// CHECK: ![[WIDTH_4]] = !{!"llvm.loop.vectorize.width", i32 4}
+// CHECK: ![[INTERLEAVE_4]] = !{!"llvm.loop.interleave.count", i32 4}
+// CHECK: ![[INTENABLE_1]] = !{!"llvm.loop.vectorize.enable", i1 true}
+// CHECK: ![[LOOP_2]] = distinct !{![[LOOP_2:.*]], ![[UNROLL_DISABLE:.*]], ![[INTERLEAVE_4:.*]], ![[WIDTH_8:.*]]}
+// CHECK: ![[UNROLL_DISABLE]] = !{!"llvm.loop.unroll.disable"}
+// CHECK: ![[WIDTH_8]] = !{!"llvm.loop.vectorize.width", i32 8}
+// CHECK: ![[LOOP_3]] = distinct !{![[LOOP_3]], ![[UNROLL_8:.*]], ![[INTERLEAVE_4:.*]], ![[ENABLE_1:.*]]}
+// CHECK: ![[UNROLL_8]] = !{!"llvm.loop.unroll.count", i32 8}
+// CHECK: ![[LOOP_4]] = distinct !{![[LOOP_4]], ![[INTERLEAVE_2:.*]], ![[WIDTH_2:.*]]}
+// CHECK: ![[INTERLEAVE_2]] = !{!"llvm.loop.interleave.count", i32 2}
+// CHECK: ![[WIDTH_2]] = !{!"llvm.loop.vectorize.width", i32 2}
+// CHECK: ![[LOOP_5]] = distinct !{![[LOOP_5]], ![[UNROLL_DISABLE:.*]], ![[WIDTH_1:.*]]}
+// CHECK: ![[WIDTH_1]] = !{!"llvm.loop.vectorize.width", i32 1}
+// CHECK: ![[LOOP_6]] = distinct !{![[LOOP_6]], ![[UNROLL_8:.*]], ![[INTERLEAVE_2:.*]], ![[WIDTH_2:.*]]}
+// CHECK: ![[LOOP_7]] = distinct !{![[LOOP_7]], ![[WIDTH_5:.*]]}
+// CHECK: ![[WIDTH_5]] = !{!"llvm.loop.vectorize.width", i32 5}
+// CHECK: ![[LOOP_8]] = distinct !{![[LOOP_8]], ![[WIDTH_5:.*]]}
+// CHECK: ![[LOOP_9]] = distinct !{![[LOOP_9]], ![[UNROLL_8:.*]], ![[INTERLEAVE_8:.*]], ![[WIDTH_8:.*]]}
+// CHECK: ![[INTERLEAVE_8]] = !{!"llvm.loop.interleave.count", i32 8}
+// CHECK: ![[LOOP_10]] = distinct !{![[LOOP_10]], ![[UNROLL_8:.*]], ![[INTERLEAVE_2:.*]], ![[WIDTH_2:.*]]}
+// CHECK: ![[LOOP_11]] = distinct !{![[LOOP_11]], ![[UNROLL_8:.*]], ![[INTERLEAVE_4:.*]], ![[WIDTH_2:.*]]}
+// CHECK: ![[LOOP_12]] = distinct !{![[LOOP_12]], ![[UNROLL_24:.*]], ![[INTERLEAVE_10:.*]], ![[WIDTH_6:.*]]}
+// CHECK: ![[UNROLL_24]] = !{!"llvm.loop.unroll.count", i32 24}
+// CHECK: ![[INTERLEAVE_10]] = !{!"llvm.loop.interleave.count", i32 10}
+// CHECK: ![[WIDTH_6]] = !{!"llvm.loop.vectorize.width", i32 6}
+// CHECK: ![[LOOP_13]] = distinct !{![[LOOP_13]], ![[UNROLL_32:.*]], ![[INTERLEAVE_16:.*]], ![[WIDTH_8:.*]]}
+// CHECK: ![[UNROLL_32]] = !{!"llvm.loop.unroll.count", i32 32}
+// CHECK: ![[INTERLEAVE_16]] = !{!"llvm.loop.interleave.count", i32 16}
+// CHECK: ![[LOOP_14]] = distinct !{![[LOOP_14]], ![[WIDTH_10:.*]]}
+// CHECK: ![[WIDTH_10]] = !{!"llvm.loop.vectorize.width", i32 10}