diff options
Diffstat (limited to 'lib/Transforms/Scalar/SimplifyCFG.cpp')
| -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 ed51746..259f4d1 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.. // //===----------------------------------------------------------------------===// |