https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116537
Bug ID: 116537
Summary: integer_three_node looks like it can be removed
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: internal-improvement
Severity: enhancement
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
ChangeLog-2010: (integer_three_node): Add.
ChangeLog-2010: NULL_TREE in build_int_cst calls. Initialize the
integer_three_node.
builtins.cc: arg2 = integer_three_node;
cp/ChangeLog-2010: * decl.c (integer_three_node): Remove.
cp/ChangeLog-2010: (cxx_init_decl_processing): Do not initialize the
integer_three_node.
cp/ChangeLog-2010: * cp-tree.h (integer_three_node): Remove.
tree-ssa-loop-prefetch.cc: local = nontemporal ? integer_zero_node :
integer_three_node;
tree.cc: integer_three_node = build_int_cst (integer_type_node, 3);
tree.h:#define integer_three_node global_trees[TI_INTEGER_THREE]
Those are the only references to integer_three_node in the whole GCC tree.
The use in builtins.cc is definitely not needed as it just calls expand_normal
right afterwards.
The use in tree-ssa-loop-prefetch.cc can just be replaced with `build_int_cst
(integer_type_node, 3);` as this is definitely not a hot loop and move over the
pass is not enabled for most of the time anyways.
