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llvm-project/llvm/test/CodeGen/AArch64/arm64-vector-insertion.ll
Julian Nagele e333d6019d
[AArch64] Replace expensive move from wzr by two moves via floating point immediate (#146538) 
We've noticed that inserting 0 into a known vector lane is implemented
via a move from wzr, i.e., moving between register banks. We think it
will be cheaper (and have seen improvements on our benchmarks) to
materialize 0 into a floating point register and insert from there.

PR: https://github.com/llvm/llvm-project/pull/146538
2025-07-16 12:41:59 +02:00

456 lines
18 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=arm64-eabi -mcpu=generic -aarch64-neon-syntax=apple -mattr="+fullfp16" | FileCheck %s
define void @test0f(ptr nocapture %x, float %a) #0 {
; CHECK-LABEL: test0f:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: movi.2d v1, #0000000000000000
; CHECK-NEXT: // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT: mov.s v1[0], v0[0]
; CHECK-NEXT: str q1, [x0]
; CHECK-NEXT: ret
entry:
%0 = insertelement <4 x float> <float undef, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>, float %a, i32 0
store <4 x float> %0, ptr %x, align 16
ret void
}
define void @test1f(ptr nocapture %x, float %a) #0 {
; CHECK-LABEL: test1f:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: fmov.4s v1, #1.00000000
; CHECK-NEXT: // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT: mov.s v1[0], v0[0]
; CHECK-NEXT: str q1, [x0]
; CHECK-NEXT: ret
entry:
%0 = insertelement <4 x float> <float undef, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>, float %a, i32 0
store <4 x float> %0, ptr %x, align 16
ret void
}
define <16 x i8> @test_insert_v16i8_insert_1(i8 %a) {
; CHECK-LABEL: test_insert_v16i8_insert_1:
; CHECK: // %bb.0:
; CHECK-NEXT: movi.2d v0, #0000000000000000
; CHECK-NEXT: mov.b v0[14], w0
; CHECK-NEXT: ret
%v.0 = insertelement <16 x i8> zeroinitializer, i8 %a, i32 14
ret <16 x i8> %v.0
}
define <16 x i8> @test_insert_v16i8_insert_2(i8 %a) {
; CHECK-LABEL: test_insert_v16i8_insert_2:
; CHECK: // %bb.0:
; CHECK-NEXT: movi.2d v0, #0000000000000000
; CHECK-NEXT: mov.b v0[1], w0
; CHECK-NEXT: mov.b v0[2], w0
; CHECK-NEXT: ret
%v.0 = insertelement <16 x i8> zeroinitializer, i8 %a, i32 2
%v.1 = insertelement <16 x i8> %v.0, i8 %a, i32 1
ret <16 x i8> %v.1
}
define <16 x i8> @test_insert_v16i8_insert_2_undef_base(i8 %a) {
; CHECK-LABEL: test_insert_v16i8_insert_2_undef_base:
; CHECK: // %bb.0:
; CHECK-NEXT: dup.16b v0, w0
; CHECK-NEXT: mov.b v0[5], wzr
; CHECK-NEXT: mov.b v0[9], wzr
; CHECK-NEXT: ret
%v.0 = insertelement <16 x i8> <i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef> , i8 %a, i32 0
%v.1 = insertelement <16 x i8> %v.0, i8 %a, i32 1
%v.2 = insertelement <16 x i8> %v.1, i8 %a, i32 2
%v.3 = insertelement <16 x i8> %v.2, i8 %a, i32 3
%v.4 = insertelement <16 x i8> %v.3, i8 %a, i32 4
%v.6 = insertelement <16 x i8> %v.4, i8 %a, i32 6
%v.7 = insertelement <16 x i8> %v.6, i8 %a, i32 7
%v.8 = insertelement <16 x i8> %v.7, i8 %a, i32 8
%v.10 = insertelement <16 x i8> %v.8, i8 %a, i32 10
%v.11 = insertelement <16 x i8> %v.10, i8 %a, i32 11
%v.12 = insertelement <16 x i8> %v.11, i8 %a, i32 12
%v.13 = insertelement <16 x i8> %v.12, i8 %a, i32 13
%v.14 = insertelement <16 x i8> %v.13, i8 %a, i32 14
%v.15 = insertelement <16 x i8> %v.14, i8 %a, i32 15
ret <16 x i8> %v.15
}
; Similar to above, but we leave element 8 as undef. One interesting part with
; this test case is that %a may be poison, so simply inserting %a also at
; index 8 would make the result vector more poisonous.
define <16 x i8> @test_insert_v16i8_insert_2_undef_base_skip8(i32 %a0) {
; CHECK-LABEL: test_insert_v16i8_insert_2_undef_base_skip8:
; CHECK: // %bb.0:
; CHECK-NEXT: lsr w8, w0, #5
; CHECK-NEXT: dup.16b v0, w8
; CHECK-NEXT: mov.b v0[5], wzr
; CHECK-NEXT: mov.b v0[9], wzr
; CHECK-NEXT: ret
%a1 = lshr exact i32 %a0, 5
%a = trunc i32 %a1 to i8
%v.0 = insertelement <16 x i8> <i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef> , i8 %a, i32 0
%v.1 = insertelement <16 x i8> %v.0, i8 %a, i32 1
%v.2 = insertelement <16 x i8> %v.1, i8 %a, i32 2
%v.3 = insertelement <16 x i8> %v.2, i8 %a, i32 3
%v.4 = insertelement <16 x i8> %v.3, i8 %a, i32 4
%v.6 = insertelement <16 x i8> %v.4, i8 %a, i32 6
%v.7 = insertelement <16 x i8> %v.6, i8 %a, i32 7
%v.10 = insertelement <16 x i8> %v.7, i8 %a, i32 10
%v.11 = insertelement <16 x i8> %v.10, i8 %a, i32 11
%v.12 = insertelement <16 x i8> %v.11, i8 %a, i32 12
%v.13 = insertelement <16 x i8> %v.12, i8 %a, i32 13
%v.14 = insertelement <16 x i8> %v.13, i8 %a, i32 14
%v.15 = insertelement <16 x i8> %v.14, i8 %a, i32 15
ret <16 x i8> %v.15
}
define <16 x i8> @test_insert_v16i8_insert_2_undef_base_different_values(i8 %a, i8 %b) {
; CHECK-LABEL: test_insert_v16i8_insert_2_undef_base_different_values:
; CHECK: // %bb.0:
; CHECK-NEXT: dup.16b v0, w0
; CHECK-NEXT: mov.b v0[2], w1
; CHECK-NEXT: mov.b v0[5], wzr
; CHECK-NEXT: mov.b v0[7], w1
; CHECK-NEXT: mov.b v0[9], wzr
; CHECK-NEXT: mov.b v0[12], w1
; CHECK-NEXT: mov.b v0[15], w1
; CHECK-NEXT: ret
%v.0 = insertelement <16 x i8> <i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef> , i8 %a, i32 0
%v.1 = insertelement <16 x i8> %v.0, i8 %a, i32 1
%v.2 = insertelement <16 x i8> %v.1, i8 %b, i32 2
%v.3 = insertelement <16 x i8> %v.2, i8 %a, i32 3
%v.4 = insertelement <16 x i8> %v.3, i8 %a, i32 4
%v.6 = insertelement <16 x i8> %v.4, i8 %a, i32 6
%v.7 = insertelement <16 x i8> %v.6, i8 %b, i32 7
%v.8 = insertelement <16 x i8> %v.7, i8 %a, i32 8
%v.10 = insertelement <16 x i8> %v.8, i8 %a, i32 10
%v.11 = insertelement <16 x i8> %v.10, i8 %a, i32 11
%v.12 = insertelement <16 x i8> %v.11, i8 %b, i32 12
%v.13 = insertelement <16 x i8> %v.12, i8 %a, i32 13
%v.14 = insertelement <16 x i8> %v.13, i8 %a, i32 14
%v.15 = insertelement <16 x i8> %v.14, i8 %b, i32 15
ret <16 x i8> %v.15
}
; Similar to above, but we leave element 8 as undef. One interesting part with
; this test case is that %a and %b may be poison, so simply inserting %a or %b
; at index 8 would make the result vector more poisonous.
define <16 x i8> @test_insert_v16i8_insert_2_undef_base_different_values_skip8(i32 %a0, i32 %b0) {
; CHECK-LABEL: test_insert_v16i8_insert_2_undef_base_different_values_skip8:
; CHECK: // %bb.0:
; CHECK-NEXT: lsr w8, w0, #5
; CHECK-NEXT: dup.16b v0, w8
; CHECK-NEXT: lsr w8, w1, #5
; CHECK-NEXT: mov.b v0[2], w8
; CHECK-NEXT: mov.b v0[5], wzr
; CHECK-NEXT: mov.b v0[7], w8
; CHECK-NEXT: mov.b v0[9], wzr
; CHECK-NEXT: mov.b v0[12], w8
; CHECK-NEXT: mov.b v0[15], w8
; CHECK-NEXT: ret
%a1 = lshr exact i32 %a0, 5
%a = trunc i32 %a1 to i8
%b1 = lshr exact i32 %b0, 5
%b = trunc i32 %b1 to i8
%v.0 = insertelement <16 x i8> <i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef> , i8 %a, i32 0
%v.1 = insertelement <16 x i8> %v.0, i8 %a, i32 1
%v.2 = insertelement <16 x i8> %v.1, i8 %b, i32 2
%v.3 = insertelement <16 x i8> %v.2, i8 %a, i32 3
%v.4 = insertelement <16 x i8> %v.3, i8 %a, i32 4
%v.6 = insertelement <16 x i8> %v.4, i8 %a, i32 6
%v.7 = insertelement <16 x i8> %v.6, i8 %b, i32 7
%v.10 = insertelement <16 x i8> %v.7, i8 %a, i32 10
%v.11 = insertelement <16 x i8> %v.10, i8 %a, i32 11
%v.12 = insertelement <16 x i8> %v.11, i8 %b, i32 12
%v.13 = insertelement <16 x i8> %v.12, i8 %a, i32 13
%v.14 = insertelement <16 x i8> %v.13, i8 %a, i32 14
%v.15 = insertelement <16 x i8> %v.14, i8 %b, i32 15
ret <16 x i8> %v.15
}
define <8 x half> @test_insert_v8f16_insert_1(half %a) {
; CHECK-LABEL: test_insert_v8f16_insert_1:
; CHECK: // %bb.0:
; CHECK-NEXT: // kill: def $h0 killed $h0 def $q0
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: dup.8h v0, v0[0]
; CHECK-NEXT: mov.h v0[7], v1[0]
; CHECK-NEXT: ret
%v.0 = insertelement <8 x half> <half undef, half undef, half undef, half undef, half undef, half undef, half undef, half 0.0>, half %a, i32 0
%v.1 = insertelement <8 x half> %v.0, half %a, i32 1
%v.2 = insertelement <8 x half> %v.1, half %a, i32 2
%v.3 = insertelement <8 x half> %v.2, half %a, i32 3
%v.4 = insertelement <8 x half> %v.3, half %a, i32 4
%v.5 = insertelement <8 x half> %v.4, half %a, i32 5
%v.6 = insertelement <8 x half> %v.5, half %a, i32 6
ret <8 x half> %v.6
}
define <8 x half> @test_insert_v8f16_insert_2(half %a) {
; CHECK-LABEL: test_insert_v8f16_insert_2:
; CHECK: // %bb.0:
; CHECK-NEXT: movi.2d v1, #0000000000000000
; CHECK-NEXT: // kill: def $h0 killed $h0 def $q0
; CHECK-NEXT: mov.h v1[1], v0[0]
; CHECK-NEXT: mov.h v1[2], v0[0]
; CHECK-NEXT: mov.16b v0, v1
; CHECK-NEXT: ret
%v.0 = insertelement <8 x half> zeroinitializer, half %a, i32 2
%v.1 = insertelement <8 x half> %v.0, half %a, i32 1
ret <8 x half> %v.1
}
define <8 x i16> @test_insert_v8i16_insert_2(i16 %a) {
; CHECK-LABEL: test_insert_v8i16_insert_2:
; CHECK: // %bb.0:
; CHECK-NEXT: dup.8h v0, w0
; CHECK-NEXT: mov.h v0[3], wzr
; CHECK-NEXT: mov.h v0[7], wzr
; CHECK-NEXT: ret
%v.0 = insertelement <8 x i16> <i16 undef, i16 undef, i16 undef, i16 0, i16 undef, i16 undef, i16 undef, i16 0>, i16 %a, i32 0
%v.1 = insertelement <8 x i16> %v.0, i16 %a, i32 1
%v.2 = insertelement <8 x i16> %v.1, i16 %a, i32 2
%v.3 = insertelement <8 x i16> %v.2, i16 %a, i32 4
%v.4 = insertelement <8 x i16> %v.3, i16 %a, i32 5
%v.5 = insertelement <8 x i16> %v.4, i16 %a, i32 6
ret <8 x i16> %v.5
}
define <8 x i16> @test_insert_v8i16_insert_3(i16 %a) {
; CHECK-LABEL: test_insert_v8i16_insert_3:
; CHECK: // %bb.0:
; CHECK-NEXT: dup.8h v0, w0
; CHECK-NEXT: mov.h v0[1], wzr
; CHECK-NEXT: mov.h v0[3], wzr
; CHECK-NEXT: mov.h v0[7], wzr
; CHECK-NEXT: ret
%v.0 = insertelement <8 x i16> <i16 undef, i16 0, i16 undef, i16 0, i16 undef, i16 undef, i16 undef, i16 0>, i16 %a, i32 0
%v.2 = insertelement <8 x i16> %v.0, i16 %a, i32 2
%v.3 = insertelement <8 x i16> %v.2, i16 %a, i32 4
%v.4 = insertelement <8 x i16> %v.3, i16 %a, i32 5
%v.5 = insertelement <8 x i16> %v.4, i16 %a, i32 6
ret <8 x i16> %v.5
}
define <8 x i16> @test_insert_v8i16_insert_4(i16 %a) {
; CHECK-LABEL: test_insert_v8i16_insert_4:
; CHECK: // %bb.0:
; CHECK-NEXT: movi.2d v0, #0000000000000000
; CHECK-NEXT: mov.h v0[0], w0
; CHECK-NEXT: mov.h v0[2], w0
; CHECK-NEXT: mov.h v0[4], w0
; CHECK-NEXT: mov.h v0[5], w0
; CHECK-NEXT: ret
%v.0 = insertelement <8 x i16> <i16 undef, i16 0, i16 undef, i16 0, i16 undef, i16 undef, i16 0, i16 0>, i16 %a, i32 0
%v.2 = insertelement <8 x i16> %v.0, i16 %a, i32 2
%v.3 = insertelement <8 x i16> %v.2, i16 %a, i32 4
%v.4 = insertelement <8 x i16> %v.3, i16 %a, i32 5
ret <8 x i16> %v.4
}
define <8 x i16> @test_insert_v8i16_insert_5(i16 %a) {
; CHECK-LABEL: test_insert_v8i16_insert_5:
; CHECK: // %bb.0:
; CHECK-NEXT: movi.2d v0, #0000000000000000
; CHECK-NEXT: mov.h v0[0], w0
; CHECK-NEXT: mov.h v0[4], w0
; CHECK-NEXT: mov.h v0[5], w0
; CHECK-NEXT: ret
%v.0 = insertelement <8 x i16> <i16 undef, i16 0, i16 0, i16 0, i16 undef, i16 undef, i16 0, i16 0>, i16 %a, i32 0
%v.3 = insertelement <8 x i16> %v.0, i16 %a, i32 4
%v.4 = insertelement <8 x i16> %v.3, i16 %a, i32 5
ret <8 x i16> %v.4
}
define <2 x float> @test_insert_v2f32_undef_zero_vector(float %a) {
; CHECK-LABEL: test_insert_v2f32_undef_zero_vector:
; CHECK: // %bb.0:
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT: mov.s v1[1], v0[0]
; CHECK-NEXT: fmov d0, d1
; CHECK-NEXT: ret
%v.0 = insertelement <2 x float> <float 0.000000e+00, float undef>, float %a, i32 1
ret <2 x float> %v.0
}
define <4 x float> @test_insert_3_f32_undef_zero_vector(float %a) {
; CHECK-LABEL: test_insert_3_f32_undef_zero_vector:
; CHECK: // %bb.0:
; CHECK-NEXT: // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: dup.4s v0, v0[0]
; CHECK-NEXT: mov.s v0[3], v1[0]
; CHECK-NEXT: ret
%v.0 = insertelement <4 x float> <float undef, float undef, float undef, float 0.000000e+00>, float %a, i32 0
%v.1 = insertelement <4 x float> %v.0, float %a, i32 1
%v.2 = insertelement <4 x float> %v.1, float %a, i32 2
ret <4 x float> %v.2
}
define <4 x float> @test_insert_3_f32_undef(float %a) {
; CHECK-LABEL: test_insert_3_f32_undef:
; CHECK: // %bb.0:
; CHECK-NEXT: // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT: dup.4s v0, v0[0]
; CHECK-NEXT: ret
%v.0 = insertelement <4 x float> <float undef, float undef, float undef, float undef>, float %a, i32 0
%v.1 = insertelement <4 x float> %v.0, float %a, i32 1
%v.2 = insertelement <4 x float> %v.1, float %a, i32 2
ret <4 x float> %v.2
}
define <4 x float> @test_insert_2_f32_undef_zero(float %a) {
; CHECK-LABEL: test_insert_2_f32_undef_zero:
; CHECK: // %bb.0:
; CHECK-NEXT: movi.2d v1, #0000000000000000
; CHECK-NEXT: // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT: mov.s v1[0], v0[0]
; CHECK-NEXT: mov.s v1[2], v0[0]
; CHECK-NEXT: mov.16b v0, v1
; CHECK-NEXT: ret
%v.0 = insertelement <4 x float> <float undef, float 0.000000e+00, float undef, float 0.000000e+00>, float %a, i32 0
%v.1 = insertelement <4 x float> %v.0, float %a, i32 2
ret <4 x float> %v.1
}
define <2 x double> @test_insert_v2f64_undef_insert1(double %a) {
; CHECK-LABEL: test_insert_v2f64_undef_insert1:
; CHECK: // %bb.0:
; CHECK-NEXT: movi.2d v1, #0000000000000000
; CHECK-NEXT: // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT: mov.d v1[0], v0[0]
; CHECK-NEXT: mov.16b v0, v1
; CHECK-NEXT: ret
%v.0 = insertelement <2 x double > <double undef, double 0.000000e+00>, double %a, i32 0
ret <2 x double> %v.0
}
define <4 x float> @test_insert_2_f32_var(float %a, <4 x float> %b) {
; CHECK-LABEL: test_insert_2_f32_var:
; CHECK: // %bb.0:
; CHECK-NEXT: // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT: mov.s v1[0], v0[0]
; CHECK-NEXT: mov.s v1[2], v0[0]
; CHECK-NEXT: mov.16b v0, v1
; CHECK-NEXT: ret
%v.0 = insertelement <4 x float> %b, float %a, i32 0
%v.1 = insertelement <4 x float> %v.0, float %a, i32 2
ret <4 x float> %v.1
}
define <8 x i16> @test_insert_v8i16_i16_zero(<8 x i16> %a) {
; CHECK-LABEL: test_insert_v8i16_i16_zero:
; CHECK: // %bb.0:
; CHECK-NEXT: mov.h v0[5], wzr
; CHECK-NEXT: ret
%v.0 = insertelement <8 x i16> %a, i16 0, i32 5
ret <8 x i16> %v.0
}
define <4 x half> @test_insert_v4f16_f16_zero(<4 x half> %a) {
; CHECK-LABEL: test_insert_v4f16_f16_zero:
; CHECK: // %bb.0:
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT: mov.h v0[0], v1[0]
; CHECK-NEXT: // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT: ret
%v.0 = insertelement <4 x half> %a, half 0.000000e+00, i32 0
ret <4 x half> %v.0
}
define <8 x half> @test_insert_v8f16_f16_zero(<8 x half> %a) {
; CHECK-LABEL: test_insert_v8f16_f16_zero:
; CHECK: // %bb.0:
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: mov.h v0[6], v1[0]
; CHECK-NEXT: ret
%v.0 = insertelement <8 x half> %a, half 0.000000e+00, i32 6
ret <8 x half> %v.0
}
define <2 x float> @test_insert_v2f32_f32_zero(<2 x float> %a) {
; CHECK-LABEL: test_insert_v2f32_f32_zero:
; CHECK: // %bb.0:
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT: mov.s v0[0], v1[0]
; CHECK-NEXT: // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT: ret
%v.0 = insertelement <2 x float> %a, float 0.000000e+00, i32 0
ret <2 x float> %v.0
}
define <4 x float> @test_insert_v4f32_f32_zero(<4 x float> %a) {
; CHECK-LABEL: test_insert_v4f32_f32_zero:
; CHECK: // %bb.0:
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: mov.s v0[3], v1[0]
; CHECK-NEXT: ret
%v.0 = insertelement <4 x float> %a, float 0.000000e+00, i32 3
ret <4 x float> %v.0
}
define <2 x double> @test_insert_v2f64_f64_zero(<2 x double> %a) {
; CHECK-LABEL: test_insert_v2f64_f64_zero:
; CHECK: // %bb.0:
; CHECK-NEXT: movi d1, #0000000000000000
; CHECK-NEXT: mov.d v0[1], v1[0]
; CHECK-NEXT: ret
%v.0 = insertelement <2 x double> %a, double 0.000000e+00, i32 1
ret <2 x double> %v.0
}
define <4 x half> @test_insert_v4f16_f16_zero_wzr(<4 x half> %a) #1 {
; CHECK-LABEL: test_insert_v4f16_f16_zero_wzr:
; CHECK: // %bb.0:
; CHECK-NEXT: // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT: mov.h v0[0], wzr
; CHECK-NEXT: // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT: ret
%v.0 = insertelement <4 x half> %a, half 0.000000e+00, i32 0
ret <4 x half> %v.0
}
define <8 x half> @test_insert_v8f16_f16_zero_wzr(<8 x half> %a) #1 {
; CHECK-LABEL: test_insert_v8f16_f16_zero_wzr:
; CHECK: // %bb.0:
; CHECK-NEXT: mov.h v0[6], wzr
; CHECK-NEXT: ret
%v.0 = insertelement <8 x half> %a, half 0.000000e+00, i32 6
ret <8 x half> %v.0
}
define <2 x float> @test_insert_v2f32_f32_zero_wzr(<2 x float> %a) #1 {
; CHECK-LABEL: test_insert_v2f32_f32_zero_wzr:
; CHECK: // %bb.0:
; CHECK-NEXT: // kill: def $d0 killed $d0 def $q0
; CHECK-NEXT: mov.s v0[0], wzr
; CHECK-NEXT: // kill: def $d0 killed $d0 killed $q0
; CHECK-NEXT: ret
%v.0 = insertelement <2 x float> %a, float 0.000000e+00, i32 0
ret <2 x float> %v.0
}
define <4 x float> @test_insert_v4f32_f32_zero_wzr(<4 x float> %a) #1 {
; CHECK-LABEL: test_insert_v4f32_f32_zero_wzr:
; CHECK: // %bb.0:
; CHECK-NEXT: mov.s v0[3], wzr
; CHECK-NEXT: ret
%v.0 = insertelement <4 x float> %a, float 0.000000e+00, i32 3
ret <4 x float> %v.0
}
define <2 x double> @test_insert_v2f64_f64_zero_xzr(<2 x double> %a) #1 {
; CHECK-LABEL: test_insert_v2f64_f64_zero_xzr:
; CHECK: // %bb.0:
; CHECK-NEXT: mov.d v0[1], xzr
; CHECK-NEXT: ret
%v.0 = insertelement <2 x double> %a, double 0.000000e+00, i32 1
ret <2 x double> %v.0
}
attributes #1 = {"tune-cpu"="cortex-a55"}
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