Iain Buclaw
91418c4208
The `@register` attribute specifies that a local or `__gshared` variable is to be given a register storage-class in the C sense of the term, and will be placed into a register named `registerName`. The variable needs to boiled down to a data type that fits the target register. It also cannot have either thread-local or `extern` storage. It is an error to take the address of a register variable. PR d/105413 gcc/d/ChangeLog: * d-attribs.cc (d_handle_register_attribute): New function. (d_langhook_attribute_table): Add register attribute. * d-codegen.cc (d_mark_addressable): Error if taken address of register variable. (build_frame_type): Error if register variable has non-local references. * d-tree.h (d_mark_addressable): Add complain parameter. * decl.cc (get_symbol_decl): Mark register varibles DECL_REGISTER. Error when register variable declared thread-local or extern. * expr.cc (ExprVisitor::visit (IndexExp *)): Don't complain about marking register vectors as addressable in an ARRAY_REF. libphobos/ChangeLog: * libdruntime/gcc/attributes.d (register): Define. gcc/testsuite/ChangeLog: * gdc.dg/attr_register1.d: New test. * gdc.dg/attr_register2.d: New test. * gdc.dg/attr_register3.d: New test.
The files in this directory where noted are part of the DRuntime and Phobos library. DRuntime is the low-level runtime library backing the D programming language, hosted at https://github.com/dlang/druntime/. Phobos is the standard library for the D Programming Language, hosted at https://github.com/dlang/phobos/. The following sources and directories are part of DRuntime: libdruntime/core/ libdruntime/gc/ libdruntime/gcstub/ libdruntime/object.d libdruntime/rt/ The following sources and directories are part of Phobos: src/etc/ src/index.d src/std/ To report a bug or look up known issues with the runtime or standard library please visit the issue tracker at https://issues.dlang.org/. All changes to either of these libraries should go through the upstream repository first, then merged back to GCC.