Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx> --- Documentation/api.rst | 1 + flowgraph.h | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/Documentation/api.rst b/Documentation/api.rst index cb8a0982011d..09ed0c4d7f9b 100644 --- a/Documentation/api.rst +++ b/Documentation/api.rst @@ -10,6 +10,7 @@ Utilities .. c:autodoc:: ptrlist.c .. c:autodoc:: utils.h +.. c:autodoc:: flowgraph.h Parsing ~~~~~~~ diff --git a/flowgraph.h b/flowgraph.h index 7226c55f0805..5a9c26073554 100644 --- a/flowgraph.h +++ b/flowgraph.h @@ -1,13 +1,33 @@ #ifndef FLOWGRAPH_H #define FLOWGRAPH_H +/// +// Utilities for flowgraphs +// ------------------------ + #include <stdbool.h> struct entrypoint; struct basic_block; +/// +// Set the BB's reverse postorder links +// Each BB will also have its 'order number' set. int cfg_postorder(struct entrypoint *ep); + +/// +// Build the dominance tree. +// Each BB will then have: +// - a link to its immediate dominator (::idom) +// - the list of BB it immediately dominates (::doms) +// - its level in the dominance tree (::dom_level) void domtree_build(struct entrypoint *ep); + +/// +// Test the dominance between two basic blocks. +// @a: the basic block expected to dominate +// @b: the basic block expected to be dominated +// @return: ``true`` if @a dominates @b, ``false`` otherwise. bool domtree_dominates(struct basic_block *a, struct basic_block *b); #endif -- 2.29.2
