; RUN: llc < %s | grep 0x0021 | count 2 ; PR4776 target datalayout = "e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8" target triple = "msp430-unknown-unknown" @"\010x0021" = external global i8, align 1 ; <i8*> [#uses=2] define zeroext i8 @foo(i8 zeroext %x) nounwind { entry: %retval = alloca i8 ; <i8*> [#uses=2] %x.addr = alloca i8 ; <i8*> [#uses=2] %tmp = alloca i8, align 1 ; <i8*> [#uses=2] store i8 %x, i8* %x.addr %tmp1 = volatile load i8* @"\010x0021" ; <i8> [#uses=1] store i8 %tmp1, i8* %tmp %tmp2 = load i8* %x.addr ; <i8> [#uses=1] volatile store i8 %tmp2, i8* @"\010x0021" %tmp3 = load i8* %tmp ; <i8> [#uses=1] store i8 %tmp3, i8* %retval %0 = load i8* %retval ; <i8> [#uses=1] ret i8 %0 }