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| author | Chris Lattner <sabre@nondot.org> | 2007-12-03 19:43:18 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-12-03 19:43:18 +0000 |
| commit | 4cf4b69330f0b2a3ba325bcdb1ff41847c022260 (patch) | |
| tree | fe654220b601ae613018333112d4d09c66045d65 | |
| parent | 8528e78f0d281de4d683de4e1b93b6ff9bed7f5c (diff) | |
| download | llvm-4cf4b69330f0b2a3ba325bcdb1ff41847c022260.tar.gz llvm-4cf4b69330f0b2a3ba325bcdb1ff41847c022260.tar.bz2 llvm-4cf4b69330f0b2a3ba325bcdb1ff41847c022260.tar.xz | |
update file comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44543 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/Scalar/SimplifyCFG.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/SimplifyCFG.cpp b/lib/Transforms/Scalar/SimplifyCFG.cpp index ed51746b3c..259f4d1626 100644 --- a/lib/Transforms/Scalar/SimplifyCFG.cpp +++ b/lib/Transforms/Scalar/SimplifyCFG.cpp @@ -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.. // //===----------------------------------------------------------------------===// |