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[ARM] Add regression test for the earlyclobber constraint of ARM STRB.

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The constraint was added in r213369.

llvm-svn: 213730
This commit is contained in:
Tilmann Scheller 2014-07-23 08:39:50 +00:00
parent e0c6a75a6a
commit 92abecadc2
1 changed files with 10 additions and 0 deletions
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10
test/CodeGen/ARM/2014-07-18-earlyclobber-str-post.ll
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@ -21,3 +21,13 @@ define i16* @earlyclobber-strh-post(i16* %addr) nounwind {
%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
}