[Stackmaps] Remove the liveness calculation for stackmap intrinsics.

There is no need to calculate the liveness information for stackmaps. The
liveness information is still available for the patchpoint intrinsic and
that is also the intended usage model.

Related to <rdar://problem/17473725>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211816 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 2 deletions

diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index 9568e238a2..bdcde102da 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -31,7 +31,6 @@
 using namespace llvm;
 
 namespace llvm {
-extern cl::opt<bool> EnableStackMapLiveness;
 extern cl::opt<bool> EnablePatchPointLiveness;
 }
 
@@ -566,7 +565,7 @@ void TargetPassConfig::addMachinePasses() {
   if (addPreEmitPass())
     printAndVerify("After PreEmit passes");
 
-  if (EnableStackMapLiveness || EnablePatchPointLiveness)
+  if (EnablePatchPointLiveness)
     addPass(&StackMapLivenessID);
 }