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path: root/test/CodeGen/ARM/vcombine.ll
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; RUN: llc -mtriple=arm-eabi -float-abi=soft -mattr=+neon %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-LE
; RUN: llc -mtriple=armeb-eabi -float-abi=soft -mattr=+neon %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-BE

define <16 x i8> @vcombine8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
; CHECK-LABEL: vcombine8
; CHECK-DAG: vldr [[LD0:d[0-9]+]], [r0]
; CHECK-DAG: vldr [[LD1:d[0-9]+]], [r1]

; CHECK-LE-DAG: vmov r0, r1, [[LD0]]
; CHECK-LE-DAG: vmov r2, r3, [[LD1]]

; CHECK-BE-DAG: vmov r1, r0, d16
; CHECK-BE-DAG: vmov r3, r2, d17
	%tmp1 = load <8 x i8>, <8 x i8>* %A
	%tmp2 = load <8 x i8>, <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-LABEL: vcombine16
; CHECK-DAG: vldr [[LD0:d[0-9]+]], [r0]
; CHECK-DAG: vldr [[LD1:d[0-9]+]], [r1]

; CHECK-LE-DAG: vmov r0, r1, [[LD0]]
; CHECK-LE-DAG: vmov r2, r3, [[LD1]]

; CHECK-BE-DAG: vmov r1, r0, d16
; CHECK-BE-DAG: vmov r3, r2, d17
	%tmp1 = load <4 x i16>, <4 x i16>* %A
	%tmp2 = load <4 x i16>, <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-LABEL: vcombine32

; CHECK-DAG: vldr [[LD0:d[0-9]+]], [r0]
; CHECK-DAG: vldr [[LD1:d[0-9]+]], [r1]

; CHECK-LE: vmov r0, r1, [[LD0]]
; CHECK-LE: vmov r2, r3, [[LD1]]

; CHECK-BE: vmov r1, r0, d16
; CHECK-BE: vmov r3, r2, d17
	%tmp1 = load <2 x i32>, <2 x i32>* %A
	%tmp2 = load <2 x i32>, <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-LABEL: vcombinefloat

; CHECK-DAG: vldr [[LD0:d[0-9]+]], [r0]
; CHECK-DAG: vldr [[LD1:d[0-9]+]], [r1]

; CHECK-LE: vmov r0, r1, [[LD0]]
; CHECK-LE: vmov r2, r3, [[LD1]]

; CHECK-BE: vmov r1, r0, d16
; CHECK-BE: vmov r3, r2, d17
	%tmp1 = load <2 x float>, <2 x float>* %A
	%tmp2 = load <2 x float>, <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-LABEL: vcombine64
; CHECK-DAG: vldr [[LD0:d[0-9]+]], [r0]
; CHECK-DAG: vldr [[LD1:d[0-9]+]], [r1]

; CHECK-LE: vmov r0, r1, [[LD0]]
; CHECK-LE: vmov r2, r3, [[LD1]]

; CHECK-BE: vmov r1, r0, [[LD0]]
; CHECK-BE: vmov r3, r2, [[LD1]]
	%tmp1 = load <1 x i64>, <1 x i64>* %A
	%tmp2 = load <1 x i64>, <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-LE: vmov r0, r1, d16
; CHECK-BE: vmov r1, r0, d16
	%tmp1 = load <8 x i16>, <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-LE: vmov r0, r1, d17
; CHECK-BE: vmov r1, r0, d16
	%tmp1 = load <16 x i8>, <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
}