From: Jason Merrill Date: Tue, 14 Jun 2011 18:15:58 +0000 (-0400) Subject: re PR c++/49389 ([C++0x] Wrong value category for pointer-to-member expression with... X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0171567edce496309e2a364e563b7cf066923918;p=gcc.git re PR c++/49389 ([C++0x] Wrong value category for pointer-to-member expression with rvalue object expression) PR c++/49389 * typeck2.c (build_m_component_ref): Preserve rvalueness. From-SVN: r175043 --- diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index a6c866567b8..5970440731f 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,8 @@ 2011-06-14 Jason Merrill + PR c++/49389 + * typeck2.c (build_m_component_ref): Preserve rvalueness. + PR c++/49369 * class.c (build_base_path): Fix cv-quals in unevaluated context. diff --git a/gcc/cp/typeck2.c b/gcc/cp/typeck2.c index fa64d1d7253..d72f57ec937 100644 --- a/gcc/cp/typeck2.c +++ b/gcc/cp/typeck2.c @@ -1551,6 +1551,7 @@ build_m_component_ref (tree datum, tree component) if (TYPE_PTRMEM_P (ptrmem_type)) { + bool is_lval = real_lvalue_p (datum); tree ptype; /* Compute the type of the field, as described in [expr.ref]. @@ -1573,7 +1574,11 @@ build_m_component_ref (tree datum, tree component) datum = build2 (POINTER_PLUS_EXPR, ptype, fold_convert (ptype, datum), build_nop (sizetype, component)); - return cp_build_indirect_ref (datum, RO_NULL, tf_warning_or_error); + datum = cp_build_indirect_ref (datum, RO_NULL, tf_warning_or_error); + /* If the object expression was an rvalue, return an rvalue. */ + if (!is_lval) + datum = move (datum); + return datum; } else return build2 (OFFSET_REF, type, datum, component); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7d5e46ae7c8..1ca37e3490d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,8 @@ 2011-06-14 Jason Merrill + PR c++/49389 + * g++.dg/cpp0x/rv-dotstar.C: New. + PR c++/49369 * g++.dg/cpp0x/decltype30.C: New. diff --git a/gcc/testsuite/g++.dg/cpp0x/rv-dotstar.C b/gcc/testsuite/g++.dg/cpp0x/rv-dotstar.C new file mode 100644 index 00000000000..65aac8da2a1 --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/rv-dotstar.C @@ -0,0 +1,13 @@ +// PR c++/49389 +// { dg-options -std=c++0x } + +template T&& val(); + +struct A {}; + +typedef decltype(val().*val()) type; + +template struct assert_type; +template<> struct assert_type {}; + +assert_type test;