[SimplifyCFG] use pass options and remove the latesimplifycfg pass

This is no-functional-change-intended.

This is repackaging the functionality of D30333 (defer switch-to-lookup-tables) and 
D35411 (defer folding unconditional branches) with pass parameters rather than a named
"latesimplifycfg" pass. Now that we have individual options to control the functionality,
we could decouple when these fire (but that's an independent patch if desired). 

The next planned step would be to add another option bit to disable the sinking transform
mentioned in D38566. This should also make it clear that the new pass manager needs to
be updated to limit simplifycfg in the same way as the old pass manager.

Differential Revision: https://reviews.llvm.org/D38631

llvm-svn: 316835

1 files changed, 0 insertions, 3 deletions

diff --git a/llvm/include/llvm-c/Transforms/Scalar.h b/llvm/include/llvm-c/Transforms/Scalar.h
index b9612b9cec0..8991e090484 100644
--- a/llvm/include/llvm-c/Transforms/Scalar.h
+++ b/llvm/include/llvm-c/Transforms/Scalar.h
@@ -44,9 +44,6 @@ void LLVMAddAlignmentFromAssumptionsPass(LLVMPassManagerRef PM);
 /** See llvm::createCFGSimplificationPass function. */
 void LLVMAddCFGSimplificationPass(LLVMPassManagerRef PM);
 
-/** See llvm::createLateCFGSimplificationPass function. */
-void LLVMAddLateCFGSimplificationPass(LLVMPassManagerRef PM);
-
 /** See llvm::createDeadStoreEliminationPass function. */
 void LLVMAddDeadStoreEliminationPass(LLVMPassManagerRef PM);