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| author | Bernhard Fischer <aldot@gcc.gnu.org> | 2008-01-28 22:08:51 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <aldot@gcc.gnu.org> | 2008-01-28 22:08:51 +0100 |
| commit | b814cc0a2e8608939993e4f19768c3aaeb660bde (patch) | |
| tree | b8eeb1b02be35c84d5642dfaa1b7c4d2da77b972 /gcc/doc/tree-ssa.texi | |
| parent | f46ff79863073cb6379fc316b8a5b0a9d5ce3d1b (diff) | |
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tree-ssa.texi: Add cindex PHI nodes and improve wording.
2008-01-28 Bernhard Fischer <aldot@gcc.gnu.org>
* doc/tree-ssa.texi: Add cindex PHI nodes and improve wording.
From-SVN: r131921
Diffstat (limited to 'gcc/doc/tree-ssa.texi')
| -rw-r--r-- | gcc/doc/tree-ssa.texi | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/doc/tree-ssa.texi b/gcc/doc/tree-ssa.texi index fcbee88..8cd8452 100644 --- a/gcc/doc/tree-ssa.texi +++ b/gcc/doc/tree-ssa.texi @@ -1198,7 +1198,8 @@ the version number and the statement that created the @code{SSA_NAME}. Only definitions and virtual definitions may create new @code{SSA_NAME} nodes. -Sometimes, flow of control makes it impossible to determine what is the +@cindex PHI nodes +Sometimes, flow of control makes it impossible to determine the most recent version of a variable. In these cases, the compiler inserts an artificial definition for that variable called @dfn{PHI function} or @dfn{PHI node}. This new definition merges |