llvm-6502/test/Transforms/ScalarRepl/vector_memcpy.ll
Chris Lattner 29e641761e teach SROA to handle promoting vector allocas with a memset into them into
a vector type instead of into an integer type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 04:17:04 +00:00

30 lines
915 B
LLVM

; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis > %t
; RUN: grep {ret <16 x float> %A} %t
; RUN: grep {ret <16 x float> zeroinitializer} %t
define <16 x float> @foo(<16 x float> %A) nounwind {
%tmp = alloca <16 x float>, align 16
%tmp2 = alloca <16 x float>, align 16
store <16 x float> %A, <16 x float>* %tmp
%s = bitcast <16 x float>* %tmp to i8*
%s2 = bitcast <16 x float>* %tmp2 to i8*
call void @llvm.memcpy.i64(i8* %s2, i8* %s, i64 64, i32 16)
%R = load <16 x float>* %tmp2
ret <16 x float> %R
}
define <16 x float> @foo2(<16 x float> %A) nounwind {
%tmp2 = alloca <16 x float>, align 16
%s2 = bitcast <16 x float>* %tmp2 to i8*
call void @llvm.memset.i64(i8* %s2, i8 0, i64 64, i32 16)
%R = load <16 x float>* %tmp2
ret <16 x float> %R
}
declare void @llvm.memcpy.i64(i8* nocapture, i8* nocapture, i64, i32) nounwind
declare void @llvm.memset.i64(i8* nocapture, i8, i64, i32) nounwind