llvm/test/Transforms/ScalarRepl/2009-03-04-MemCpyAlign.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

20 lines
693 B
LLVM

; The store into %p should end up with a known alignment of 1, since the memcpy
; is only known to access it with 1-byte alignment.
; RUN: opt < %s -scalarrepl -S | grep {store i16 1, .*, align 1}
; PR3720
%struct.st = type { i16 }
define void @f(i8* %p) nounwind {
entry:
%s = alloca %struct.st, align 4 ; <%struct.st*> [#uses=2]
%0 = getelementptr %struct.st* %s, i32 0, i32 0 ; <i16*> [#uses=1]
store i16 1, i16* %0, align 4
%s1 = bitcast %struct.st* %s to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.i32(i8* %p, i8* %s1, i32 2, i32 1)
ret void
}
declare void @llvm.memcpy.i32(i8* nocapture, i8* nocapture, i32, i32) nounwind