view test/CodeGen/ARM/vcombine.ll @ 0:95c75e76d11b

LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 54457678186b
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; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s

define <16 x i8> @vcombine8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
; CHECK: vcombine8
; CHECK: vmov r0, r1, d16
; CHECK: vmov r2, r3, d17
	%tmp1 = load <8 x i8>* %A
	%tmp2 = load <8 x i8>* %B
	%tmp3 = shufflevector <8 x i8> %tmp1, <8 x i8> %tmp2, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
	ret <16 x i8> %tmp3
}

define <8 x i16> @vcombine16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
; CHECK: vcombine16
; CHECK: vmov r0, r1, d16
; CHECK: vmov r2, r3, d17
	%tmp1 = load <4 x i16>* %A
	%tmp2 = load <4 x i16>* %B
	%tmp3 = shufflevector <4 x i16> %tmp1, <4 x i16> %tmp2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
	ret <8 x i16> %tmp3
}

define <4 x i32> @vcombine32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
; CHECK: vcombine32
; CHECK: vmov r0, r1, d16
; CHECK: vmov r2, r3, d17
	%tmp1 = load <2 x i32>* %A
	%tmp2 = load <2 x i32>* %B
	%tmp3 = shufflevector <2 x i32> %tmp1, <2 x i32> %tmp2, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
	ret <4 x i32> %tmp3
}

define <4 x float> @vcombinefloat(<2 x float>* %A, <2 x float>* %B) nounwind {
; CHECK: vcombinefloat
; CHECK: vmov r0, r1, d16
; CHECK: vmov r2, r3, d17
	%tmp1 = load <2 x float>* %A
	%tmp2 = load <2 x float>* %B
	%tmp3 = shufflevector <2 x float> %tmp1, <2 x float> %tmp2, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
	ret <4 x float> %tmp3
}

define <2 x i64> @vcombine64(<1 x i64>* %A, <1 x i64>* %B) nounwind {
; CHECK: vcombine64
; CHECK: vmov r0, r1, d16
; CHECK: vmov r2, r3, d17
	%tmp1 = load <1 x i64>* %A
	%tmp2 = load <1 x i64>* %B
	%tmp3 = shufflevector <1 x i64> %tmp1, <1 x i64> %tmp2, <2 x i32> <i32 0, i32 1>
	ret <2 x i64> %tmp3
}

; Check for vget_low and vget_high implemented with shufflevector.  PR8411.
; They should not require storing to the stack.

define <4 x i16> @vget_low16(<8 x i16>* %A) nounwind {
; CHECK: vget_low16
; CHECK-NOT: vst
; CHECK: vmov r0, r1, d16
	%tmp1 = load <8 x i16>* %A
        %tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
        ret <4 x i16> %tmp2
}

define <8 x i8> @vget_high8(<16 x i8>* %A) nounwind {
; CHECK: vget_high8
; CHECK-NOT: vst
; CHECK: vmov r0, r1, d17
	%tmp1 = load <16 x i8>* %A
        %tmp2 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
        ret <8 x i8> %tmp2
}