Rebased PNaCl localmods in LLVM to 223109

test/Transforms/NaCl/expand-ctors.ll

+; We expect these symbol names to be removed:
+; RUN: opt < %s -nacl-expand-ctors -S | FileCheck %s -check-prefix=NO_CTORS
+; NO_CTORS-NOT: llvm.global.ctors
+; NO_CTORS-NOT: __init_array_end
+; NO_CTORS-NOT: __fini_array_end
+
+; RUN: opt < %s -nacl-expand-ctors -S | FileCheck %s
+
+@llvm.global_ctors = appending global [3 x { i32, void ()* }]
+  [{ i32, void ()* } { i32 300, void ()* @init_func_A },
+   { i32, void ()* } { i32 100, void ()* @init_func_B },
+   { i32, void ()* } { i32 200, void ()* @init_func_C }]
+
+@__init_array_start = extern_weak global [0 x void ()*]
+@__init_array_end = extern_weak global [0 x void ()*]
+
+; CHECK: @__init_array_start = internal constant [3 x void ()*] [void ()* @init_func_B, void ()* @init_func_C, void ()* @init_func_A]
+; CHECK: @__fini_array_start = internal constant [0 x void ()*] zeroinitializer
+
+define void @init_func_A() { ret void }
+define void @init_func_B() { ret void }
+define void @init_func_C() { ret void }
+
+define [0 x void ()*]* @get_array_start() {
+  ret [0 x void ()*]* @__init_array_start;
+}
+; CHECK: @get_array_start()
+; CHECK: ret {{.*}} @__init_array_start
+
+define [0 x void ()*]* @get_array_end() {
+  ret [0 x void ()*]* @__init_array_end;
+}
+
+; @get_array_end() is converted to use a GetElementPtr that returns
+; the end of the generated array:
+; CHECK: @get_array_end()
+; CHECK: ret {{.*}} bitcast ([3 x void ()*]* getelementptr inbounds ([3 x void ()*]* @__init_array_start, i32 1)