Turn MipsOptimizeMathLibCalls into a target-independent scalar transform

...so that it can be used for z too.  Most of the code is the same.
The only real change is to use TargetTransformInfo to test when a sqrt
instruction is available.

The pass is opt-in because at the moment it only handles sqrt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189097 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/Transforms/Scalar/Scalar.cpp b/lib/Transforms/Scalar/Scalar.cpp
index 758334dba4..952811b22b 100644
--- a/lib/Transforms/Scalar/Scalar.cpp
+++ b/lib/Transforms/Scalar/Scalar.cpp
@@ -50,6 +50,7 @@ void llvm::initializeScalarOpts(PassRegistry &Registry) {
   initializeLowerAtomicPass(Registry);
   initializeLowerExpectIntrinsicPass(Registry);
   initializeMemCpyOptPass(Registry);
+  initializePartiallyInlineLibCallsPass(Registry);
   initializeReassociatePass(Registry);
   initializeRegToMemPass(Registry);
   initializeSCCPPass(Registry);
@@ -123,6 +124,10 @@ void LLVMAddMemCpyOptPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createMemCpyOptPass());
 }
 
+void LLVMAddPartiallyInlineLibCallsPass(LLVMPassManagerRef PM) {
+  unwrap(PM)->add(createPartiallyInlineLibCallsPass());
+}
+
 void LLVMAddPromoteMemoryToRegisterPass(LLVMPassManagerRef PM) {
   unwrap(PM)->add(createPromoteMemoryToRegisterPass());
 }