https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98492
Bug ID: 98492
Summary: C++ pp_gimple_stmt_1 doesn't output function call
arguments
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
When called for a call statement in a C program, the pp_gimple_stmt_1()
function outputs the full call statement, including its arguments (and the
variable to which the result is assigned).
But when called for a call statement in the same program compiled as C++, the
pp_gimple_stmt_1() function only outputs the name of the called function.
I tracked this down to the C++ front end reinitializing the pretty-printer (by
calling reinit_cxx_pp()) from lang_decl_name(), which ends up called from
lang_hooks.decl_printable_name().
The following is the sequence of calls:
print_call_name () in tree-pretty-print.c
+- calls -> dump_function_name()
+-> pp_string (pp, lang_hooks.decl_printable_name (node, 1))
C++ lang_hooks.decl_printable_name () points to
cxx_printable_name() in cp/tree.c
+- calls -> cxx_printable_name_internal()
+-> lang_decl_name()
+-> reinit_cxx_pp()
(This is a problem when the pretty printer is used to format diagnostics.)
