1 ; RUN: llc -mtriple=armv7-linux-gnueabihf %s -o - | FileCheck %s
3 ; Check that we don't create an unpredictable STR instruction,
4 ; e.g. str r0, [r0], #4
6 define ptr @earlyclobber-str-post(ptr %addr) nounwind {
7 ; CHECK-LABEL: earlyclobber-str-post
8 ; CHECK-NOT: str r[[REG:[0-9]+]], [r[[REG]]], #4
9 %val = ptrtoint ptr %addr to i32
10 store i32 %val, ptr %addr
11 %new = getelementptr i32, ptr %addr, i32 1
15 define ptr @earlyclobber-strh-post(ptr %addr) nounwind {
16 ; CHECK-LABEL: earlyclobber-strh-post
17 ; CHECK-NOT: strh r[[REG:[0-9]+]], [r[[REG]]], #2
18 %val = ptrtoint ptr %addr to i32
19 %tr = trunc i32 %val to i16
20 store i16 %tr, ptr %addr
21 %new = getelementptr i16, ptr %addr, i32 1
25 define ptr @earlyclobber-strb-post(ptr %addr) nounwind {
26 ; CHECK-LABEL: earlyclobber-strb-post
27 ; CHECK-NOT: strb r[[REG:[0-9]+]], [r[[REG]]], #1
28 %val = ptrtoint ptr %addr to i32
29 %tr = trunc i32 %val to i8
30 store i8 %tr, ptr %addr
31 %new = getelementptr i8, ptr %addr, i32 1