Adding a pass - RewritePNaClLibraryCalls, that replaces known library calls with stable bitcode int…

test/Transforms/NaCl/rewrite-longjmp-no-store.ll

Index: test/Transforms/NaCl/rewrite-longjmp-no-store.ll
diff --git a/test/Transforms/NaCl/rewrite-longjmp-no-store.ll b/test/Transforms/NaCl/rewrite-longjmp-no-store.ll
new file mode 100644
index 0000000000000000000000000000000000000000..942017893875605ab74ff1db8f21f9b7db6ab469
--- /dev/null
+++ b/test/Transforms/NaCl/rewrite-longjmp-no-store.ll
@@ -0,0 +1,13 @@
+; RUN: opt < %s -rewrite-pnacl-library-calls -S | FileCheck %s
+; Test that when there's no store of longjmp's address, no wrapper
+; function is generated.
+
+declare void @longjmp(i64*, i32)
+
+define void @call_longjmp(i64* %arg, i32 %num) {
+  call void @longjmp(i64* %arg, i32 %num)
+  ret void
+}
+
+; CHECK-NOT: @__nacl_wrap_longjmp
+