mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
20 lines
711 B
LLVM
20 lines
711 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: llvm-as < %s | opt -scalarrepl | llvm-dis | 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
|
||
|
|
|