Rebased PNaCl localmods in LLVM to 223109

test/Transforms/NaCl/pnacl-abi-simplify-preopt.ll

+; RUN: opt %s -pnacl-abi-simplify-preopt -S | FileCheck %s
+
+; "-pnacl-abi-simplify-preopt" runs various passes which are tested
+; thoroughly in other *.ll files.  This file is a smoke test to check
+; that "-pnacl-abi-simplify-preopt" runs what it's supposed to run.
+
+declare void @ext_func()
+
+
+define void @invoke_func() {
+  invoke void @ext_func() to label %cont unwind label %lpad
+cont:
+  ret void
+lpad:
+  %lp = landingpad { i8*, i32 } personality i8* null cleanup
+  ret void
+}
+; CHECK-NOT: invoke void @ext_func()
+; CHECK-NOT: landingpad
+
+
+define void @varargs_func(...) {
+  ret void
+}
+; CHECK-NOT: @varargs_func(...)
+
+
+%MyStruct = type { i32, i32 }
+
+; Checks that ExpandVarArgs and ExpandStructRegs are applied in the
+; right order.
+define void @get_struct_from_varargs(i8* %va_list, %MyStruct* %dest) {
+  %val = va_arg i8* %va_list, %MyStruct
+  store %MyStruct %val, %MyStruct* %dest
+  ret void
+}
+; CHECK-NOT: va_arg
+
+
+@llvm.global_ctors = appending global [0 x { i32, void ()* }] zeroinitializer
+; CHECK-NOT: @llvm.global_ctors
+
+@tls_var = thread_local global i32 0
+; CHECK-NOT: thread_local
+
+@alias = alias i32* @tls_var
+; CHECK-NOT: @alias
+
+@weak_ref = extern_weak global i8*
+; CHECK-NOT: extern_weak