SimplifyLibcalls: Add fabs and trunc to the list of libcalls that are safe to shrink from double to float.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162173 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp
index f110320..3904419 100644
--- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp
+++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp
@@ -1641,6 +1641,8 @@
Optimizations["llvm.exp2.f64"] = &Exp2;
Optimizations["llvm.exp2.f32"] = &Exp2;
+ if (TLI->has(LibFunc::fabs) && TLI->has(LibFunc::fabsf))
+ Optimizations["fabs"] = &UnaryDoubleFP;
if (TLI->has(LibFunc::floor) && TLI->has(LibFunc::floorf))
Optimizations["floor"] = &UnaryDoubleFP;
if (TLI->has(LibFunc::ceil) && TLI->has(LibFunc::ceilf))
@@ -1651,6 +1653,8 @@
Optimizations["rint"] = &UnaryDoubleFP;
if (TLI->has(LibFunc::nearbyint) && TLI->has(LibFunc::nearbyintf))
Optimizations["nearbyint"] = &UnaryDoubleFP;
+ if (TLI->has(LibFunc::trunc) && TLI->has(LibFunc::truncf))
+ Optimizations["trunc"] = &UnaryDoubleFP;
// Integer Optimizations
Optimizations["ffs"] = &FFS;