[JITLink] Add missing testcase for compact-unwind-needs-dwarf.

This testcase was accidentally left out of 9d88ffe.

Author: lhames

llvm/test/ExecutionEngine/Orc/throw-catch-no-frame-pointer.ll

@@ -0,0 +1,51 @@
+; REQUIRES: system-darwin && host-unwind-supports-jit
+; RUN: lli -jit-kind=orc %s
+;
+; Check that we can throw exceptions from no-fp functions. On systems that
+; support compact-unwind this implicitly tests that we correctly handle
+; unwind-info records that depend on DWARF FDEs.
+
+@_ZTIi = external constant ptr
+
+declare ptr @__cxa_allocate_exception(i64)
+declare void @__cxa_throw(ptr, ptr, ptr)
+declare ptr @__cxa_begin_catch(ptr)
+declare void @__cxa_end_catch()
+declare i32 @__gxx_personality_v0(...)
+declare i32 @llvm.eh.typeid.for.p0(ptr)
+
+define void @_Z3foov() "frame-pointer"="none" {
+entry:
+  %exception = tail call ptr @__cxa_allocate_exception(i64 4)
+  store i32 42, ptr %exception
+  tail call void @__cxa_throw(ptr %exception, ptr nonnull @_ZTIi, ptr null)
+  unreachable
+}
+
+define i32 @main(i32 %argc, ptr %argv) "frame-pointer"="all" personality ptr @__gxx_personality_v0 {
+entry:
+  invoke void @_Z3foov()
+          to label %return.unreachable unwind label %lpad
+
+lpad:
+  %0 = landingpad { ptr, i32 }
+          catch ptr @_ZTIi
+  %1 = extractvalue { ptr, i32 } %0, 1
+  %2 = tail call i32 @llvm.eh.typeid.for.p0(ptr nonnull @_ZTIi)
+  %matches = icmp eq i32 %1, %2
+  br i1 %matches, label %catch, label %eh.resume
+
+catch:
+  %3 = extractvalue { ptr, i32 } %0, 0
+  %4 = tail call ptr @__cxa_begin_catch(ptr %3)
+  %5 = load i32, ptr %4
+  %sub = sub nsw i32 42, %5
+  tail call void @__cxa_end_catch()
+  ret i32 %sub
+
+return.unreachable:
+  unreachable
+
+eh.resume:
+  resume { ptr, i32 } %0
+}