Do not mark no-return calls tail calls. It'll screw up special calls like longjmp and it doesn't make much sense for performance reason. If my logic is faulty, please let me know.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94937 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/TailCallElim/no-return-calls.ll

@@ -0,0 +1,12 @@
+; RUN: opt < %s -tailcallelim -S | FileCheck %s
+
+define void @t() nounwind ssp {
+entry:
+; CHECK: entry:
+; CHECK: %0 = call i32 @foo()
+; CHECK: ret void
+  %0 = call i32 @foo() nounwind noreturn
+  ret void
+}
+
+declare i32 @foo()