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| author | Fariborz Jahanian <fjahanian@apple.com> | 2009-09-25 18:11:25 +0000 |
|---|---|---|
| committer | Fariborz Jahanian <fjahanian@apple.com> | 2009-09-25 18:11:25 +0000 |
| commit | 7498e50aea92276fdd8aceb7076b4156ee6dbab4 (patch) | |
| tree | aa3efbbcdd07958c35261e57650311e036baf4be | |
| parent | bcdc0f0aff015b6507560f50c71d1b7b6c6a9932 (diff) | |
Fix the AST tree so ir-gen can do the conversion via copy construction.
Fixed pr5050.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82783 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Sema/SemaExprCXX.cpp | 4 | ||||
| -rw-r--r-- | test/CodeGenCXX/PR5050-constructor-conversion.cpp | 19 |
2 files changed, 22 insertions, 1 deletions
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp index a243b2cec6..76c64f492b 100644 --- a/lib/Sema/SemaExprCXX.cpp +++ b/lib/Sema/SemaExprCXX.cpp @@ -1113,7 +1113,9 @@ Sema::PerformImplicitConversion(Expr *&From, QualType ToType, if (SCS.CopyConstructor) { // FIXME: When can ToType be a reference type? assert(!ToType->isReferenceType()); - + if (SCS.Second == ICK_Derived_To_Base) + ImpCastExprToType(From, ToType, CastExpr::CK_DerivedToBase, + /*isLvalue=*/true); OwningExprResult FromResult = BuildCXXConstructExpr(/*FIXME:ConstructLoc*/SourceLocation(), ToType, SCS.CopyConstructor, diff --git a/test/CodeGenCXX/PR5050-constructor-conversion.cpp b/test/CodeGenCXX/PR5050-constructor-conversion.cpp new file mode 100644 index 0000000000..adfe74ffbc --- /dev/null +++ b/test/CodeGenCXX/PR5050-constructor-conversion.cpp @@ -0,0 +1,19 @@ +// RUN: clang-cc -triple x86_64-apple-darwin -std=c++0x -S %s -o %t-64.s && +// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s && +// RUN: clang-cc -triple i386-apple-darwin -std=c++0x -S %s -o %t-32.s && +// RUN: FileCheck -check-prefix LP32 --input-file=%t-32.s %s && +// RUN: true + +struct A { A(const A&); }; + +struct B : A { }; + +A f(const B &b) { + return b; +} + +// CHECK-LP64: call __ZN1AC1ERK1A + +// CHECK-LP32: call L__ZN1AC1ERK1A + + |