maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

update file comment. 

llvm-svn: 44543
This commit is contained in:
Chris Lattner 2007-12-03 19:43:18 +00:00
parent 9c9405f4ef
commit 19970e62e7
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
llvm/lib/Transforms/Scalar/SimplifyCFG.cpp
View File

@ -7,14 +7,17 @@
//
//===----------------------------------------------------------------------===//
//
// This file implements dead code elimination and basic block merging.
// Specifically:
// This file implements dead code elimination and basic block merging, along
// with a collection of other peephole control flow optimizations. For example:
//
// * Removes basic blocks with no predecessors.
// * Merges a basic block into its predecessor if there is only one and the
// predecessor only has one successor.
// * Eliminates PHI nodes for basic blocks with a single predecessor.
// * Eliminates a basic block that only contains an unconditional branch.
// * Changes invoke instructions to nounwind functions to be calls.
// * Change things like "if (x) if (y)" into "if (x&y)".
// * etc..
//
//===----------------------------------------------------------------------===//