llvm-mirror/test/CodeGen/AArch64/arm64-vshuffle.ll
John Brawn 5f32a8dbc4 [AArch64] Do 64-bit vector move of 0 and -1 by extracting from the 128-bit move
Currently a vector move of 0 or -1 will use different instructions depending on
the size of the vector. Using a single instruction (the 128-bit one) for both
gives more opportunity for Machine CSE to eliminate instructions.

Differential Revision: https://reviews.llvm.org/D53579

llvm-svn: 345270
2018-10-25 14:56:48 +00:00

77 lines
3.3 KiB
LLVM

; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -mcpu=cyclone | FileCheck %s
; CHECK: test1
; CHECK: movi.16b v[[REG0:[0-9]+]], #0
define <8 x i1> @test1() {
entry:
%Shuff = shufflevector <8 x i1> <i1 0, i1 1, i1 2, i1 3, i1 4, i1 5, i1 6,
i1 7>,
<8 x i1> <i1 0, i1 1, i1 2, i1 3, i1 4, i1 5, i1 6,
i1 7>,
<8 x i32> <i32 2, i32 undef, i32 6, i32 undef, i32 10,
i32 12, i32 14, i32 0>
ret <8 x i1> %Shuff
}
; CHECK: lCPI1_0:
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 1 ; 0x1
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: test2
; CHECK: adrp x[[REG2:[0-9]+]], lCPI1_0@PAGE
; CHECK: ldr d[[REG1:[0-9]+]], [x[[REG2]], lCPI1_0@PAGEOFF]
define <8 x i1>@test2() {
bb:
%Shuff = shufflevector <8 x i1> zeroinitializer,
<8 x i1> <i1 0, i1 1, i1 1, i1 0, i1 0, i1 1, i1 0, i1 0>,
<8 x i32> <i32 2, i32 undef, i32 6, i32 undef, i32 10, i32 12, i32 14,
i32 0>
ret <8 x i1> %Shuff
}
; CHECK: test3
; CHECK: movi.4s v{{[0-9]+}}, #1
define <16 x i1> @test3(i1* %ptr, i32 %v) {
bb:
%Shuff = shufflevector <16 x i1> <i1 0, i1 1, i1 1, i1 0, i1 0, i1 1, i1 0, i1 0, i1 0, i1 1, i1 1, i1 0, i1 0, i1 1, i1 0, i1 0>, <16 x i1> undef,
<16 x i32> <i32 2, i32 undef, i32 6, i32 undef, i32 10, i32 12, i32 14,
i32 0, i32 2, i32 undef, i32 6, i32 undef, i32 10, i32 12,
i32 14, i32 0>
ret <16 x i1> %Shuff
}
; CHECK: lCPI3_0:
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 1 ; 0x1
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: .byte 0 ; 0x0
; CHECK: _test4:
; CHECK: adrp x[[REG3:[0-9]+]], lCPI3_0@PAGE
; CHECK: ldr q[[REG2:[0-9]+]], [x[[REG3]], lCPI3_0@PAGEOFF]
define <16 x i1> @test4(i1* %ptr, i32 %v) {
bb:
%Shuff = shufflevector <16 x i1> zeroinitializer,
<16 x i1> <i1 0, i1 1, i1 1, i1 0, i1 0, i1 1, i1 0, i1 0, i1 0, i1 1,
i1 1, i1 0, i1 0, i1 1, i1 0, i1 0>,
<16 x i32> <i32 2, i32 1, i32 6, i32 18, i32 10, i32 12, i32 14, i32 0,
i32 2, i32 31, i32 6, i32 30, i32 10, i32 12, i32 14, i32 0>
ret <16 x i1> %Shuff
}