Rebased PNaCl localmods in LLVM to 223109

test/Transforms/MinSFI/expand-allocas-globalvar-exists.ll

+; RUN: opt %s -minsfi-expand-allocas -S | FileCheck %s
+
+target datalayout = "p:32:32:32"
+target triple = "le32-unknown-nacl"
+
+@__sfi_stack_ptr = external global i32
+
+; CHECK: @__sfi_stack_ptr1 = internal global i32
+
+define i8* @test_correct_global_var_used() {
+  %ptr = alloca i8
+  ret i8* %ptr
+}
+
+; CHECK-LABEL: define i8* @test_correct_global_var_used() {
+; CHECK-NEXT:    %frame_top = load i32* @__sfi_stack_ptr1
+; CHECK-NEXT:    %1 = sub i32 %frame_top, 1
+; CHECK-NEXT:    %ptr = inttoptr i32 %1 to i8*
+; CHECK-NEXT:    ret i8* %ptr
+; CHECK-NEXT:  }
+
+define i32 @_start_minsfi(i32 %args) {
+  ret i32 0
+}