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* doc/cfg.texi (Basic Blocks): Define dominators.

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From-SVN: r83762
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Ben Elliston 2004-06-28 04:01:27 +00:00 • committed by Ben Elliston
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@ -1,3 +1,7 @@
2004-06-28 Ben Elliston <bje@au.ibm.com>
* doc/cfg.texi (Basic Blocks): Define dominators.
2004-06-27 Andrew Pinski <pinskia@physics.uc.edu>
PR c++/16205

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gcc/doc/cfg.texi
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@ -47,7 +47,8 @@ underlying instruction stream. The chain of basic blocks is updated
transparently by the provided API for manipulating the CFG. The macro
@code{FOR_EACH_BB} can be used to visit all the basic blocks in
lexicographical order. Dominator traversals are also possible using
@code{walk_dominator_tree}.
@code{walk_dominator_tree}. Given two basic blocks A and B, block A
dominates block B if A is @emph{always} executed before B.
@findex BASIC_BLOCK
The @code{BASIC_BLOCK} array contains all basic blocks in an
@ -145,7 +146,7 @@ in GCC with the @code{edge} data type. Each @code{edge} acts as a
link between two basic blocks: the @code{src} member of an edge
points to the predecessor basic block of the @code{dest} basic block.
The members @code{pred} and @code{succ} of the @code{basic_block} data
type point to single linked lists of edges to the predecessors and
type point to singly linked lists of edges to the predecessors and
successors of the block. The edges are linked via the
@code{succ_next} and @code{pred_next} members of the @code{edge} data
type.