[llvm] r213730 - [ARM] Add regression test for the earlyclobber constraint of ARM STRB.

[Tilmann Scheller]

Author: tilmann
Date: Wed Jul 23 03:39:50 2014
New Revision: 213730

URL: http://llvm.org/viewvc/llvm-project?rev=213730&view=rev
Log:
[ARM] Add regression test for the earlyclobber constraint of ARM STRB.

The constraint was added in r213369.

Modified:
    llvm/trunk/test/CodeGen/ARM/2014-07-18-earlyclobber-str-post.ll

Modified: llvm/trunk/test/CodeGen/ARM/2014-07-18-earlyclobber-str-post.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/2014-07-18-earlyclobber-str-post.ll?rev=213730&r1=213729&r2=213730&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/2014-07-18-earlyclobber-str-post.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/2014-07-18-earlyclobber-str-post.ll Wed Jul 23 03:39:50 2014
@@ -21,3 +21,13 @@ define i16* @earlyclobber-strh-post(i16*
   %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
+}