[cfe-commits] r164348 - in /cfe/trunk: lib/Analysis/BodyFarm.cpp test/Analysis/unix-fns.c
Ted Kremenek
kremenek at apple.com
Thu Sep 20 17:52:24 PDT 2012
Author: kremenek
Date: Thu Sep 20 19:52:24 2012
New Revision: 164348
URL: http://llvm.org/viewvc/llvm-project?rev=164348&view=rev
Log:
Add faux-body support for dispatch_once().
Modified:
cfe/trunk/lib/Analysis/BodyFarm.cpp
cfe/trunk/test/Analysis/unix-fns.c
Modified: cfe/trunk/lib/Analysis/BodyFarm.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Analysis/BodyFarm.cpp?rev=164348&r1=164347&r2=164348&view=diff
==============================================================================
--- cfe/trunk/lib/Analysis/BodyFarm.cpp (original)
+++ cfe/trunk/lib/Analysis/BodyFarm.cpp Thu Sep 20 19:52:24 2012
@@ -22,6 +22,113 @@
typedef Stmt *(*FunctionFarmer)(ASTContext &C, const FunctionDecl *D);
+static bool isDispatchBlock(QualType Ty) {
+ // Is it a block pointer?
+ const BlockPointerType *BPT = Ty->getAs<BlockPointerType>();
+ if (!BPT)
+ return false;
+
+ // Check if the block pointer type takes no arguments and
+ // returns void.
+ const FunctionProtoType *FT =
+ BPT->getPointeeType()->getAs<FunctionProtoType>();
+ if (!FT || !FT->getResultType()->isVoidType() ||
+ FT->getNumArgs() != 0)
+ return false;
+
+ return true;
+}
+
+/// Create a fake body for dispatch_once.
+static Stmt *create_dispatch_once(ASTContext &C, const FunctionDecl *D) {
+ // Check if we have at least two parameters.
+ if (D->param_size() != 2)
+ return 0;
+
+ // Check if the first parameter is a pointer to integer type.
+ const ParmVarDecl *Predicate = D->getParamDecl(0);
+ QualType PredicateQPtrTy = Predicate->getType();
+ const PointerType *PredicatePtrTy = PredicateQPtrTy->getAs<PointerType>();
+ if (!PredicatePtrTy)
+ return 0;
+ QualType PredicateTy = PredicatePtrTy->getPointeeType();
+ if (!PredicateTy->isIntegerType())
+ return 0;
+
+ // Check if the second parameter is the proper block type.
+ const ParmVarDecl *Block = D->getParamDecl(1);
+ QualType Ty = Block->getType();
+ if (!isDispatchBlock(Ty))
+ return 0;
+
+ // Everything checks out. Create a fakse body that checks the predicate,
+ // sets it, and calls the block. Basically, an AST dump of:
+ //
+ // void dispatch_once(dispatch_once_t *predicate, dispatch_block_t block) {
+ // if (!*predicate) {
+ // *predicate = 1;
+ // block();
+ // }
+ // }
+
+ // (1) Create the call.
+ DeclRefExpr *DR = DeclRefExpr::CreateEmpty(C, false, false, false, false);
+ DR->setDecl(const_cast<ParmVarDecl*>(Block));
+ DR->setType(Ty);
+ DR->setValueKind(VK_LValue);
+ ImplicitCastExpr *ICE = ImplicitCastExpr::Create(C, Ty, CK_LValueToRValue,
+ DR, 0, VK_RValue);
+ CallExpr *CE = new (C) CallExpr(C, ICE, ArrayRef<Expr*>(), C.VoidTy,
+ VK_RValue, SourceLocation());
+
+ // (2) Create the assignment to the predicate.
+ IntegerLiteral *IL =
+ IntegerLiteral::Create(C, llvm::APInt(C.getTypeSize(C.IntTy), (uint64_t) 1),
+ C.IntTy, SourceLocation());
+ ICE = ImplicitCastExpr::Create(C, PredicateTy, CK_IntegralCast, IL, 0,
+ VK_RValue);
+ DR = DeclRefExpr::CreateEmpty(C, false, false, false, false);
+ DR->setDecl(const_cast<ParmVarDecl*>(Predicate));
+ DR->setType(PredicateQPtrTy);
+ DR->setValueKind(VK_LValue);
+ ImplicitCastExpr *LValToRval =
+ ImplicitCastExpr::Create(C, PredicateQPtrTy, CK_LValueToRValue, DR,
+ 0, VK_RValue);
+ UnaryOperator *UO = new (C) UnaryOperator(LValToRval, UO_Deref, PredicateTy,
+ VK_LValue, OK_Ordinary,
+ SourceLocation());
+ BinaryOperator *B = new (C) BinaryOperator(UO, ICE, BO_Assign,
+ PredicateTy, VK_RValue,
+ OK_Ordinary,
+ SourceLocation());
+ // (3) Create the compound statement.
+ Stmt *Stmts[2];
+ Stmts[0] = B;
+ Stmts[1] = CE;
+ CompoundStmt *CS = new (C) CompoundStmt(C, Stmts, 2, SourceLocation(),
+ SourceLocation());
+
+ // (4) Create the 'if' condition.
+ DR = DeclRefExpr::CreateEmpty(C, false, false, false, false);
+ DR->setDecl(const_cast<ParmVarDecl*>(Predicate));
+ DR->setType(PredicateQPtrTy);
+ DR->setValueKind(VK_LValue);
+ LValToRval = ImplicitCastExpr::Create(C, PredicateQPtrTy, CK_LValueToRValue,
+ DR, 0, VK_RValue);
+ UO = new (C) UnaryOperator(LValToRval, UO_Deref, PredicateTy,
+ VK_LValue, OK_Ordinary,
+ SourceLocation());
+ LValToRval = ImplicitCastExpr::Create(C, PredicateTy, CK_LValueToRValue,
+ UO, 0, VK_RValue);
+ UO = new (C) UnaryOperator(LValToRval, UO_LNot, C.IntTy,
+ VK_RValue, OK_Ordinary, SourceLocation());
+
+ // (5) Create the 'if' statement.
+ IfStmt *If = new (C) IfStmt(C, SourceLocation(), 0, UO, CS);
+ return If;
+}
+
+
/// Create a fake body for dispatch_sync.
static Stmt *create_dispatch_sync(ASTContext &C, const FunctionDecl *D) {
@@ -32,16 +139,7 @@
// Check if the second parameter is a block.
const ParmVarDecl *PV = D->getParamDecl(1);
QualType Ty = PV->getType();
- const BlockPointerType *BPT = Ty->getAs<BlockPointerType>();
- if (!BPT)
- return 0;
-
- // Check if the block pointer type takes no arguments and
- // returns void.
- const FunctionProtoType *FT =
- BPT->getPointeeType()->getAs<FunctionProtoType>();
- if (!FT || !FT->getResultType()->isVoidType() ||
- FT->getNumArgs() != 0)
+ if (!isDispatchBlock(Ty))
return 0;
// Everything checks out. Create a fake body that just calls the block.
@@ -53,6 +151,7 @@
//
DeclRefExpr *DR = DeclRefExpr::CreateEmpty(C, false, false, false, false);
DR->setDecl(const_cast<ParmVarDecl*>(PV));
+ DR->setType(Ty);
DR->setValueKind(VK_LValue);
ImplicitCastExpr *ICE = ImplicitCastExpr::Create(C, Ty, CK_LValueToRValue,
DR, 0, VK_RValue);
@@ -80,6 +179,7 @@
FunctionFarmer FF =
llvm::StringSwitch<FunctionFarmer>(Name)
.Case("dispatch_sync", create_dispatch_sync)
+ .Case("dispatch_once", create_dispatch_once)
.Default(NULL);
if (FF) {
Modified: cfe/trunk/test/Analysis/unix-fns.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Analysis/unix-fns.c?rev=164348&r1=164347&r2=164348&view=diff
==============================================================================
--- cfe/trunk/test/Analysis/unix-fns.c (original)
+++ cfe/trunk/test/Analysis/unix-fns.c Thu Sep 20 19:52:24 2012
@@ -181,6 +181,15 @@
});
}
+// Test inlining if dispatch_once.
+void test_inline_dispatch_once() {
+ static dispatch_once_t pred;
+ int *p = 0;
+ dispatch_once(&pred, ^(void) {
+ *p = 1; // expected-warning {{null}}
+ });
+}
+
// CHECK: <key>diagnostics</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
@@ -1585,4 +1594,307 @@
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>path</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>186</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>186</integer>
+// CHECK-NEXT: <key>col</key><integer>8</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>187</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>187</integer>
+// CHECK-NEXT: <key>col</key><integer>5</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>187</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>187</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>187</integer>
+// CHECK-NEXT: <key>col</key><integer>8</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Variable 'p' initialized to a null pointer value</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Variable 'p' initialized to a null pointer value</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>188</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>188</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>190</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>0</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Calling '_dispatch_once'</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Calling '_dispatch_once'</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>162</integer>
+// CHECK-NEXT: <key>col</key><integer>1</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>depth</key><integer>1</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Entered call from 'test_inline_dispatch_once'</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Entered call from 'test_inline_dispatch_once'</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>162</integer>
+// CHECK-NEXT: <key>col</key><integer>1</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>162</integer>
+// CHECK-NEXT: <key>col</key><integer>6</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>15</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>33</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>1</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Calling 'dispatch_once'</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Calling 'dispatch_once'</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>38</integer>
+// CHECK-NEXT: <key>col</key><integer>1</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>depth</key><integer>2</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Entered call from '_dispatch_once'</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Entered call from '_dispatch_once'</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>3</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>164</integer>
+// CHECK-NEXT: <key>col</key><integer>33</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>2</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Calling anonymous block</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Calling anonymous block</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>188</integer>
+// CHECK-NEXT: <key>col</key><integer>24</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>depth</key><integer>3</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Entered call from 'dispatch_once'</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Entered call from 'dispatch_once'</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>control</string>
+// CHECK-NEXT: <key>edges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>start</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>188</integer>
+// CHECK-NEXT: <key>col</key><integer>24</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>188</integer>
+// CHECK-NEXT: <key>col</key><integer>24</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>end</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>189</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>189</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>kind</key><string>event</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>189</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <key>ranges</key>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <array>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>189</integer>
+// CHECK-NEXT: <key>col</key><integer>5</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>189</integer>
+// CHECK-NEXT: <key>col</key><integer>5</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>depth</key><integer>3</integer>
+// CHECK-NEXT: <key>extended_message</key>
+// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable 'p')</string>
+// CHECK-NEXT: <key>message</key>
+// CHECK-NEXT: <string>Dereference of null pointer (loaded from variable 'p')</string>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </array>
+// CHECK-NEXT: <key>description</key><string>Dereference of null pointer (loaded from variable 'p')</string>
+// CHECK-NEXT: <key>category</key><string>Logic error</string>
+// CHECK-NEXT: <key>type</key><string>Dereference of null pointer</string>
+// CHECK-NEXT: <key>location</key>
+// CHECK-NEXT: <dict>
+// CHECK-NEXT: <key>line</key><integer>189</integer>
+// CHECK-NEXT: <key>col</key><integer>4</integer>
+// CHECK-NEXT: <key>file</key><integer>0</integer>
+// CHECK-NEXT: </dict>
+// CHECK-NEXT: </dict>
// CHECK-NEXT: </array>
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