Rebased PNaCl localmods in LLVM to 223109

test/NaCl/ARM/sp-arithmetic-sandboxing1.ll

+; RUN: pnacl-llc -mtriple=armv7-unknown-nacl -filetype=obj %s -o - \
+; RUN:  | llvm-objdump -disassemble -triple armv7 - | FileCheck %s
+
+define void @foo(i32* %input, i32* %output) nounwind {
+entry:
+  %input.addr = alloca i32*, align 4
+  %output.addr = alloca i32*, align 4
+  %temp = alloca i32, align 4
+
+; CHECK:        sub   sp, sp
+; CHECK-NEXT:   bic   sp, sp, #3221225472
+
+  store i32* %input, i32** %input.addr, align 4
+  store i32* %output, i32** %output.addr, align 4
+  %0 = load i32** %input.addr, align 4
+  %arrayidx = getelementptr inbounds i32* %0, i32 1
+  %1 = load i32* %arrayidx, align 4
+  store i32 %1, i32* %temp, align 4
+  %2 = load i32* %temp, align 4
+  %3 = load i32** %output.addr, align 4
+  %arrayidx1 = getelementptr inbounds i32* %3, i32 0
+  store i32 %2, i32* %arrayidx1, align 4
+
+; CHECK:        add   sp, sp
+; CHECK-NEXT:   bic   sp, sp, #3221225472
+
+  ret void
+}