From 818cb4b9f8e200d8db6f0af903a167f6b545a97f Mon Sep 17 00:00:00 2001
From: Aaron Ballman <aaron@aaronballman.com>
Date: Fri, 7 Dec 2018 12:35:15 +0000
Subject: [PATCH] Adding tests for -ast-dump; NFC.

This adds tests for various statements in C.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@348588 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/AST/ast-dump-stmt.c | 246 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 241 insertions(+), 5 deletions(-)

diff --git a/test/AST/ast-dump-stmt.c b/test/AST/ast-dump-stmt.c
index fe90fa6b2e..b27451e2d4 100644
--- a/test/AST/ast-dump-stmt.c
+++ b/test/AST/ast-dump-stmt.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c11 -ast-dump -ast-dump-filter Test %s | FileCheck -strict-whitespace %s
+// RUN: %clang_cc1 -std=gnu11 -ast-dump %s | FileCheck -strict-whitespace %s
 
 int TestLocation = 0;
 // CHECK:      VarDecl{{.*}}TestLocation
@@ -6,10 +6,10 @@ int TestLocation = 0;
 
 int TestIndent = 1 + (1);
 // CHECK:      VarDecl{{.*}}TestIndent
-// CHECK-NEXT: {{^}}`-BinaryOperator{{[^()]*$}}
-// CHECK-NEXT: {{^}}  |-IntegerLiteral{{.*0[^()]*$}}
-// CHECK-NEXT: {{^}}  `-ParenExpr{{.*0[^()]*$}}
-// CHECK-NEXT: {{^}}    `-IntegerLiteral{{.*0[^()]*$}}
+// CHECK-NEXT: {{^}}| `-BinaryOperator{{[^()]*$}}
+// CHECK-NEXT: {{^}}|   |-IntegerLiteral{{.*0[^()]*$}}
+// CHECK-NEXT: {{^}}|   `-ParenExpr{{.*0[^()]*$}}
+// CHECK-NEXT: {{^}}|     `-IntegerLiteral{{.*0[^()]*$}}
 
 void TestDeclStmt() {
   int x = 0;
@@ -126,3 +126,239 @@ void TestGenericSelectionExpressions(int i) {
   // CHECK-NEXT: BuiltinType 0x{{[^ ]*}} 'int'
   // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:29> 'int' 12
 }
+
+void TestLabelsAndGoto(void) {
+  // Note: case and default labels are handled by TestSwitch().
+
+label1:
+  ;
+  // CHECK: LabelStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:1, line:[[@LINE-1]]:3> 'label1'
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <col:3>
+
+  goto label2;
+  // CHECK-NEXT: GotoStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:8> 'label2' 0x{{[^ ]*}}
+
+label2:
+  0;
+  // CHECK-NEXT: LabelStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:1, line:[[@LINE-1]]:3> 'label2'
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:3> 'int' 0
+
+  void *ptr = &&label1;
+  // CHECK-NEXT: DeclStmt
+  // CHECK-NEXT: VarDecl
+  // CHECK-NEXT: AddrLabelExpr 0x{{[^ ]*}} <col:15, col:17> 'void *' label1 0x{{[^ ]*}}
+
+  goto *ptr;
+  // CHECK-NEXT: IndirectGotoStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:9>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:9> 'void *' lvalue Var 0x{{[^ ]*}} 'ptr' 'void *'
+}
+
+void TestSwitch(int i) {
+  switch (i) {
+  // CHECK: SwitchStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3, line:[[@LINE+32]]:3>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:11> 'int' lvalue ParmVar 0x{{[^ ]*}} 'i' 'int'
+  // CHECK-NEXT: CompoundStmt 0x{{[^ ]*}} <col:14, line:[[@LINE+29]]:3>
+  case 0:
+    break;
+  // CHECK-NEXT: CaseStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: ConstantExpr
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:8> 'int' 0
+  // CHECK-NEXT: BreakStmt 0x{{[^ ]*}} <line:[[@LINE-4]]:5>
+  case 1:
+  case 2:
+    break;
+  // CHECK-NEXT: CaseStmt 0x{{[^ ]*}} <line:[[@LINE-3]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: ConstantExpr
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:8> 'int' 1
+  // CHECK-NEXT: CaseStmt 0x{{[^ ]*}} <line:[[@LINE-5]]:3, line:[[@LINE-4]]:5>
+  // CHECK-NEXT: ConstantExpr
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:8> 'int' 2
+  // CHECK-NEXT: BreakStmt 0x{{[^ ]*}} <line:[[@LINE-7]]:5>
+  default:
+    break;
+  // CHECK-NEXT: DefaultStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: BreakStmt 0x{{[^ ]*}} <col:5>
+  case 3 ... 5:
+    break;
+  // CHECK-NEXT: CaseStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5> gnu_range
+  // CHECK-NEXT: ConstantExpr
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:8> 'int' 3
+  // CHECK-NEXT: ConstantExpr
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:14> 'int' 5
+  // CHECK-NEXT: BreakStmt 0x{{[^ ]*}} <line:[[@LINE-6]]:5>
+  }
+}
+
+void TestIf(_Bool b) {
+  if (b)
+    ;
+  // CHECK: IfStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:7> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt
+
+  if (b) {}
+  // CHECK: IfStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:11>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:7> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: CompoundStmt
+
+  if (b)
+    ;
+  else
+    ;
+  // CHECK: IfStmt 0x{{[^ ]*}} <line:[[@LINE-4]]:3, line:[[@LINE-1]]:5> has_else
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:7> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-6]]:5>
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-5]]:5>
+
+  if (b) {}
+  else {}
+  // CHECK: IfStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:9> has_else
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:7> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: CompoundStmt 0x{{[^ ]*}} <col:10, col:11>
+  // CHECK-NEXT: CompoundStmt 0x{{[^ ]*}} <line:[[@LINE-5]]:8, col:9>
+
+  if (b)
+    ;
+  else if (b)
+    ;
+  // CHECK: IfStmt 0x{{[^ ]*}} <line:[[@LINE-4]]:3, line:[[@LINE-1]]:5> has_else
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:7> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-6]]:5>
+  // CHECK-NEXT: IfStmt 0x{{[^ ]*}} <line:[[@LINE-6]]:8, line:[[@LINE-5]]:5>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:12> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-8]]:5>
+
+  if (b)
+    ;
+  else if (b)
+    ;
+  else
+    ;
+  // CHECK: IfStmt 0x{{[^ ]*}} <line:[[@LINE-6]]:3, line:[[@LINE-1]]:5> has_else
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:7> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-8]]:5>
+  // CHECK-NEXT: IfStmt 0x{{[^ ]*}} <line:[[@LINE-8]]:8, line:[[@LINE-5]]:5> has_else
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:12> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-10]]:5>
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-9]]:5>
+}
+
+void TestIteration(_Bool b) {
+  while (b)
+    ;
+  // CHECK: WhileStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:10> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-4]]:5>
+
+  do
+    ;
+  while (b);
+  // CHECK: DoStmt 0x{{[^ ]*}} <line:[[@LINE-3]]:3, line:[[@LINE-1]]:11>
+  // CHECK-NEXT: NullStmt 0x{{[^ ]*}} <line:[[@LINE-3]]:5>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:10> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+
+  for (int i = 0; i < 10; ++i)
+    ;
+  // CHECK: ForStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: DeclStmt
+  // CHECK-NEXT: VarDecl 0x{{[^ ]*}} <col:8, col:16> col:12 used i 'int' cinit
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:16> 'int' 0
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: BinaryOperator 0x{{[^ ]*}} <col:19, col:23> 'int' '<'
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:19> 'int' lvalue Var 0x{{[^ ]*}} 'i' 'int'
+  // CHECK-NEXT: IntegerLiteral 0x{{[^ ]*}} <col:23> 'int' 10
+  // CHECK-NEXT: UnaryOperator 0x{{[^ ]*}} <col:27, col:29> 'int' prefix '++'
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:29> 'int' lvalue Var 0x{{[^ ]*}} 'i' 'int'
+  // CHECK-NEXT: NullStmt
+
+  for (b; b; b)
+    ;
+  // CHECK: ForStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:8> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:11> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:14> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt
+
+  for (; b; b = !b)
+    ;
+  // CHECK: ForStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:10> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: BinaryOperator 0x{{[^ ]*}} <col:13, col:18> '_Bool' '='
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:13> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: UnaryOperator 0x{{[^ ]*}} <col:17, col:18> 'int' prefix '!' cannot overflow
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:18> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt
+
+  for (; b;)
+    ;
+  // CHECK: ForStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:10> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: NullStmt
+
+  for (;; b = !b)
+    ;
+  // CHECK: ForStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: BinaryOperator 0x{{[^ ]*}} <line:[[@LINE-6]]:11, col:16> '_Bool' '='
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:11> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: UnaryOperator 0x{{[^ ]*}} <col:15, col:16> 'int' prefix '!' cannot overflow
+  // CHECK-NEXT: ImplicitCastExpr
+  // CHECK-NEXT: DeclRefExpr 0x{{[^ ]*}} <col:16> '_Bool' lvalue ParmVar 0x{{[^ ]*}} 'b' '_Bool'
+  // CHECK-NEXT: NullStmt
+
+  for (;;)
+    ;
+  // CHECK: ForStmt 0x{{[^ ]*}} <line:[[@LINE-2]]:3, line:[[@LINE-1]]:5>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: <<<NULL>>>
+  // CHECK-NEXT: NullStmt
+}
+
+void TestJumps(void) {
+  // goto and computed goto was tested in TestLabelsAndGoto().
+
+  while (1) {
+    continue;
+    // CHECK: ContinueStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:5>
+    break;
+    // CHECK: BreakStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:5>
+  }
+  return;
+  // CHECK: ReturnStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3>
+
+  return TestSwitch(1);
+  // CHECK: ReturnStmt 0x{{[^ ]*}} <line:[[@LINE-1]]:3, col:22>
+  // CHECK-NEXT: CallExpr 0x{{[^ ]*}} <col:10, col:22> 'void'
+}
-- 
2.40.0