| ; 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 |
| target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64" |
| |
| %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.p0i8.p0i8.i32(i8* %p, i8* %s1, i32 2, i32 1, i1 false) |
| ret void |
| } |
| |
| declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind |
