r290181 - [OPENMP] Fix for PR31416: Clang crashes on OMPCapturedExpr during source

Alexey Bataev via cfe-commits cfe-commits at lists.llvm.org
Tue Dec 20 08:51:02 PST 2016


Author: abataev
Date: Tue Dec 20 10:51:02 2016
New Revision: 290181

URL: http://llvm.org/viewvc/llvm-project?rev=290181&view=rev
Log:
[OPENMP] Fix for PR31416: Clang crashes on OMPCapturedExpr during source
based coverage compilation

Added source location info to captured expression declaration + fixed
source location info for loop based directives.

Modified:
    cfe/trunk/include/clang/AST/DeclOpenMP.h
    cfe/trunk/lib/AST/DeclOpenMP.cpp
    cfe/trunk/lib/Sema/SemaOpenMP.cpp
    cfe/trunk/test/OpenMP/for_codegen.cpp

Modified: cfe/trunk/include/clang/AST/DeclOpenMP.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclOpenMP.h?rev=290181&r1=290180&r2=290181&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DeclOpenMP.h (original)
+++ cfe/trunk/include/clang/AST/DeclOpenMP.h Tue Dec 20 10:51:02 2016
@@ -173,18 +173,21 @@ class OMPCapturedExprDecl final : public
   void anchor() override;
 
   OMPCapturedExprDecl(ASTContext &C, DeclContext *DC, IdentifierInfo *Id,
-                      QualType Type)
-      : VarDecl(OMPCapturedExpr, C, DC, SourceLocation(), SourceLocation(), Id,
-                Type, nullptr, SC_None) {
+                      QualType Type, SourceLocation StartLoc)
+      : VarDecl(OMPCapturedExpr, C, DC, StartLoc, SourceLocation(), Id, Type,
+                nullptr, SC_None) {
     setImplicit();
   }
 
 public:
   static OMPCapturedExprDecl *Create(ASTContext &C, DeclContext *DC,
-                                     IdentifierInfo *Id, QualType T);
+                                     IdentifierInfo *Id, QualType T,
+                                     SourceLocation StartLoc);
 
   static OMPCapturedExprDecl *CreateDeserialized(ASTContext &C, unsigned ID);
 
+  SourceRange getSourceRange() const override LLVM_READONLY;
+
   // Implement isa/cast/dyncast/etc.
   static bool classof(const Decl *D) { return classofKind(D->getKind()); }
   static bool classofKind(Kind K) { return K == OMPCapturedExpr; }

Modified: cfe/trunk/lib/AST/DeclOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/DeclOpenMP.cpp?rev=290181&r1=290180&r2=290181&view=diff
==============================================================================
--- cfe/trunk/lib/AST/DeclOpenMP.cpp (original)
+++ cfe/trunk/lib/AST/DeclOpenMP.cpp Tue Dec 20 10:51:02 2016
@@ -90,13 +90,18 @@ OMPDeclareReductionDecl::getPrevDeclInSc
 void OMPCapturedExprDecl::anchor() {}
 
 OMPCapturedExprDecl *OMPCapturedExprDecl::Create(ASTContext &C, DeclContext *DC,
-                                                 IdentifierInfo *Id,
-                                                 QualType T) {
-  return new (C, DC) OMPCapturedExprDecl(C, DC, Id, T);
+                                                 IdentifierInfo *Id, QualType T,
+                                                 SourceLocation StartLoc) {
+  return new (C, DC) OMPCapturedExprDecl(C, DC, Id, T, StartLoc);
 }
 
 OMPCapturedExprDecl *OMPCapturedExprDecl::CreateDeserialized(ASTContext &C,
                                                              unsigned ID) {
-  return new (C, ID) OMPCapturedExprDecl(C, nullptr, nullptr, QualType());
+  return new (C, ID)
+      OMPCapturedExprDecl(C, nullptr, nullptr, QualType(), SourceLocation());
 }
 
+SourceRange OMPCapturedExprDecl::getSourceRange() const {
+  assert(hasInit());
+  return SourceRange(getInit()->getLocStart(), getInit()->getLocEnd());
+}

Modified: cfe/trunk/lib/Sema/SemaOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaOpenMP.cpp?rev=290181&r1=290180&r2=290181&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaOpenMP.cpp (original)
+++ cfe/trunk/lib/Sema/SemaOpenMP.cpp Tue Dec 20 10:51:02 2016
@@ -1753,7 +1753,8 @@ static OMPCapturedExprDecl *buildCapture
     }
     WithInit = true;
   }
-  auto *CED = OMPCapturedExprDecl::Create(C, S.CurContext, Id, Ty);
+  auto *CED = OMPCapturedExprDecl::Create(C, S.CurContext, Id, Ty,
+                                          CaptureExpr->getLocStart());
   if (!WithInit)
     CED->addAttr(OMPCaptureNoInitAttr::CreateImplicit(C, SourceRange()));
   S.CurContext->addHiddenDecl(CED);
@@ -3862,14 +3863,16 @@ CheckOpenMPLoop(OpenMPDirectiveKind DKin
   Scope *CurScope = DSA.getCurScope();
   for (unsigned Cnt = 1; Cnt < NestedLoopCount; ++Cnt) {
     if (PreCond.isUsable()) {
-      PreCond = SemaRef.BuildBinOp(CurScope, SourceLocation(), BO_LAnd,
-                                   PreCond.get(), IterSpaces[Cnt].PreCond);
+      PreCond =
+          SemaRef.BuildBinOp(CurScope, PreCond.get()->getExprLoc(), BO_LAnd,
+                             PreCond.get(), IterSpaces[Cnt].PreCond);
     }
     auto N = IterSpaces[Cnt].NumIterations;
+    SourceLocation Loc = N->getExprLoc();
     AllCountsNeedLessThan32Bits &= C.getTypeSize(N->getType()) < 32;
     if (LastIteration32.isUsable())
       LastIteration32 = SemaRef.BuildBinOp(
-          CurScope, SourceLocation(), BO_Mul, LastIteration32.get(),
+          CurScope, Loc, BO_Mul, LastIteration32.get(),
           SemaRef
               .PerformImplicitConversion(N->IgnoreImpCasts(), N->getType(),
                                          Sema::AA_Converting,
@@ -3877,7 +3880,7 @@ CheckOpenMPLoop(OpenMPDirectiveKind DKin
               .get());
     if (LastIteration64.isUsable())
       LastIteration64 = SemaRef.BuildBinOp(
-          CurScope, SourceLocation(), BO_Mul, LastIteration64.get(),
+          CurScope, Loc, BO_Mul, LastIteration64.get(),
           SemaRef
               .PerformImplicitConversion(N->IgnoreImpCasts(), N->getType(),
                                          Sema::AA_Converting,
@@ -3912,7 +3915,8 @@ CheckOpenMPLoop(OpenMPDirectiveKind DKin
   ExprResult NumIterations = LastIteration;
   {
     LastIteration = SemaRef.BuildBinOp(
-        CurScope, SourceLocation(), BO_Sub, LastIteration.get(),
+        CurScope, LastIteration.get()->getExprLoc(), BO_Sub,
+        LastIteration.get(),
         SemaRef.ActOnIntegerConstant(SourceLocation(), 1).get());
     if (!LastIteration.isUsable())
       return 0;
@@ -3931,7 +3935,7 @@ CheckOpenMPLoop(OpenMPDirectiveKind DKin
 
     // Prepare SaveRef + 1.
     NumIterations = SemaRef.BuildBinOp(
-        CurScope, SourceLocation(), BO_Add, SaveRef.get(),
+        CurScope, SaveRef.get()->getExprLoc(), BO_Add, SaveRef.get(),
         SemaRef.ActOnIntegerConstant(SourceLocation(), 1).get());
     if (!NumIterations.isUsable())
       return 0;

Modified: cfe/trunk/test/OpenMP/for_codegen.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/for_codegen.cpp?rev=290181&r1=290180&r2=290181&view=diff
==============================================================================
--- cfe/trunk/test/OpenMP/for_codegen.cpp (original)
+++ cfe/trunk/test/OpenMP/for_codegen.cpp Tue Dec 20 10:51:02 2016
@@ -2,10 +2,13 @@
 // RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -emit-pch -o %t %s
 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
 // RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -fexceptions -fcxx-exceptions -debug-info-kind=line-tables-only -x c++ -emit-llvm %s -o - | FileCheck %s --check-prefix=TERM_DEBUG
+// RUN: %clang_cc1 -main-file-name for_codegen.cpp %s -o - -emit-llvm -fprofile-instrument=clang -fprofile-instrument-path=for_codegen-test.profraw | FileCheck %s --check-prefix=PROF-INSTR-PATH
 //
 // expected-no-diagnostics
 #ifndef HEADER
 #define HEADER
+// PROF-INSTR-PATH: constant [25 x i8] c"for_codegen-test.profraw\00"
+
 // CHECK: [[IDENT_T_TY:%.+]] = type { i32, i32, i32, i32, i8* }
 // CHECK-DAG: [[IMPLICIT_BARRIER_LOC:@.+]] = private unnamed_addr constant %{{.+}} { i32 0, i32 66, i32 0, i32 0, i8*
 // CHECK-DAG: [[I:@.+]] = global i8 1,




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