* expr.h (expand_expr): Make it a macro, not a function.
(expand_expr_real): New function.
* expr.c (store_expr): Adjust logic for deciding whether or not to
copy the value returned by expand_expr.
(expand_expr): Rename to ...
(expand_expr_real): ... this. Add alt_rtl parameter. Adjust
calls to language hooks.
* c-common.h (c_expand_expr): Adjust prototype.
* c-common.c (c_expand_expr): Add alt_rtl parameter.
* langhooks-def.h (lhd_expand_expr): Change prototype.
* langhooks.c (lhd_expand_expr): Add all_rtl parameter.
* langhooks.h (lang_hooks): Change type of expand_expr.
* stmt.c (stmt_status): Add x_last_expr_alt_rtl.
(last_expr_alt_rtl): Likewise.
(expand_expr_stmt_value): Set last_expr_alt_rtl.
(clear_last_expr): Clear it.
(expand_end_stmt_expr): Set RTL_EXPR_ATL_RTL.
(expand_end_bindings): Save and restor last_expr_alt_rtl.
* tree.def (RTL_EXPR): Give it an additional operand.
* tree.h (RTL_EXPR_ALT_RTL): New macro.
* misc.c (gnat_expand_expr): Add alt_rtl parameter.
* cp-tree.h (cxx_expand_expr): Change prototype.
* expr.c (cxx_expand_expr): Add alt_rtl parameter.
* java-tree.h (java_expand_expr): Change prototype.
* expr.c (java_expand_expr): Add alt_rtl parameter.
From-SVN: r75594
