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; RUN: llc -mtriple=armv7-linux-gnueabihf %s -o - | FileCheck %s
; Check that we don't create an unpredictable STR instruction,
; e.g. str r0, [r0], #4
define i32* @earlyclobber-str-post(i32* %addr) nounwind {
; CHECK-LABEL: earlyclobber-str-post
; CHECK-NOT: str r[[REG:[0-9]+]], [r[[REG]]], #4
%val = ptrtoint i32* %addr to i32
store i32 %val, i32* %addr
%new = getelementptr i32* %addr, i32 1
ret i32* %new
}
define i16* @earlyclobber-strh-post(i16* %addr) nounwind {
; CHECK-LABEL: earlyclobber-strh-post
; CHECK-NOT: strh r[[REG:[0-9]+]], [r[[REG]]], #2
%val = ptrtoint i16* %addr to i32
%tr = trunc i32 %val to i16
store i16 %tr, i16* %addr
%new = getelementptr i16* %addr, i32 1
ret i16* %new
}
define i8* @earlyclobber-strb-post(i8* %addr) nounwind {
; CHECK-LABEL: earlyclobber-strb-post
; CHECK-NOT: strb r[[REG:[0-9]+]], [r[[REG]]], #1
%val = ptrtoint i8* %addr to i32
%tr = trunc i32 %val to i8
store i8 %tr, i8* %addr
%new = getelementptr i8* %addr, i32 1
ret i8* %new
}
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