Implement count leading zeros (ctlz), count trailing zeros (cttz), and count
population (ctpop). Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.
More coming soon.
llvm-svn: 21676
diff --git a/llvm/lib/VMCore/Function.cpp b/llvm/lib/VMCore/Function.cpp
index 6740c6b..f61a4d2 100644
--- a/llvm/lib/VMCore/Function.cpp
+++ b/llvm/lib/VMCore/Function.cpp
@@ -206,6 +206,11 @@
assert(getName().size() != 5 && "'llvm.' is an invalid intrinsic name!");
switch (getName()[5]) {
+ case 'c':
+ if (getName() == "llvm.ctpop") return Intrinsic::ctpop;
+ if (getName() == "llvm.cttz") return Intrinsic::cttz;
+ if (getName() == "llvm.ctlz") return Intrinsic::ctlz;
+ break;
case 'd':
if (getName() == "llvm.dbg.stoppoint") return Intrinsic::dbg_stoppoint;
if (getName() == "llvm.dbg.region.start")return Intrinsic::dbg_region_start;