; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple armv7-linux-gnueabihf -mattr=+neon | FileCheck %s
; This test checks the @llvm.cttz.* intrinsics for vectors.
declare <1 x i8> @llvm.cttz.v1i8(<1 x i8>, i1)
declare <2 x i8> @llvm.cttz.v2i8(<2 x i8>, i1)
declare <4 x i8> @llvm.cttz.v4i8(<4 x i8>, i1)
declare <8 x i8> @llvm.cttz.v8i8(<8 x i8>, i1)
declare <16 x i8> @llvm.cttz.v16i8(<16 x i8>, i1)
declare <1 x i16> @llvm.cttz.v1i16(<1 x i16>, i1)
declare <2 x i16> @llvm.cttz.v2i16(<2 x i16>, i1)
declare <4 x i16> @llvm.cttz.v4i16(<4 x i16>, i1)
declare <8 x i16> @llvm.cttz.v8i16(<8 x i16>, i1)
declare <1 x i32> @llvm.cttz.v1i32(<1 x i32>, i1)
declare <2 x i32> @llvm.cttz.v2i32(<2 x i32>, i1)
declare <4 x i32> @llvm.cttz.v4i32(<4 x i32>, i1)
declare <1 x i64> @llvm.cttz.v1i64(<1 x i64>, i1)
declare <2 x i64> @llvm.cttz.v2i64(<2 x i64>, i1)
;------------------------------------------------------------------------------
define void @test_v1i8(ptr %p) {
; CHECK-LABEL: test_v1i8:
; CHECK: @ %bb.0:
; CHECK-NEXT: ldrb r1, [r0]
; CHECK-NEXT: orr r1, r1, #256
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: strb r1, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i8>, ptr %p
%tmp = call <1 x i8> @llvm.cttz.v1i8(<1 x i8> %a, i1 false)
store <1 x i8> %tmp, ptr %p
ret void
}
define void @test_v2i8(ptr %p) {
; CHECK-LABEL: test_v2i8:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.16 {d16[0]}, [r0:16]
; CHECK-NEXT: vmovl.u8 q8, d16
; CHECK-NEXT: vmovl.u16 q8, d16
; CHECK-NEXT: vorr.i32 d16, #0x100
; CHECK-NEXT: vneg.s32 d18, d16
; CHECK-NEXT: vand d16, d16, d18
; CHECK-NEXT: vmov.i32 d17, #0x1f
; CHECK-NEXT: vclz.i32 d16, d16
; CHECK-NEXT: vsub.i32 d16, d17, d16
; CHECK-NEXT: vmov.32 r1, d16[1]
; CHECK-NEXT: vmov.32 r2, d16[0]
; CHECK-NEXT: strb r1, [r0, #1]
; CHECK-NEXT: strb r2, [r0]
; CHECK-NEXT: bx lr
%a = load <2 x i8>, ptr %p
%tmp = call <2 x i8> @llvm.cttz.v2i8(<2 x i8> %a, i1 false)
store <2 x i8> %tmp, ptr %p
ret void
}
define void @test_v4i8(ptr %p) {
; CHECK-LABEL: test_v4i8:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: vmovl.u8 q8, d16
; CHECK-NEXT: vorr.i16 d16, #0x100
; CHECK-NEXT: vneg.s16 d18, d16
; CHECK-NEXT: vand d16, d16, d18
; CHECK-NEXT: vmov.i16 d17, #0xf
; CHECK-NEXT: vclz.i16 d16, d16
; CHECK-NEXT: vsub.i16 d16, d17, d16
; CHECK-NEXT: vuzp.8 d16, d17
; CHECK-NEXT: vst1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: bx lr
%a = load <4 x i8>, ptr %p
%tmp = call <4 x i8> @llvm.cttz.v4i8(<4 x i8> %a, i1 false)
store <4 x i8> %tmp, ptr %p
ret void
}
define void @test_v8i8(ptr %p) {
; CHECK-LABEL: test_v8i8:
; CHECK: @ %bb.0:
; CHECK-NEXT: vldr d16, [r0]
; CHECK-NEXT: vmov.i8 d18, #0x1
; CHECK-NEXT: vneg.s8 d17, d16
; CHECK-NEXT: vand d16, d16, d17
; CHECK-NEXT: vsub.i8 d16, d16, d18
; CHECK-NEXT: vcnt.8 d16, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <8 x i8>, ptr %p
%tmp = call <8 x i8> @llvm.cttz.v8i8(<8 x i8> %a, i1 false)
store <8 x i8> %tmp, ptr %p
ret void
}
define void @test_v16i8(ptr %p) {
; CHECK-LABEL: test_v16i8:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.64 {d16, d17}, [r0]
; CHECK-NEXT: vmov.i8 q10, #0x1
; CHECK-NEXT: vneg.s8 q9, q8
; CHECK-NEXT: vand q8, q8, q9
; CHECK-NEXT: vsub.i8 q8, q8, q10
; CHECK-NEXT: vcnt.8 q8, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <16 x i8>, ptr %p
%tmp = call <16 x i8> @llvm.cttz.v16i8(<16 x i8> %a, i1 false)
store <16 x i8> %tmp, ptr %p
ret void
}
define void @test_v1i16(ptr %p) {
; CHECK-LABEL: test_v1i16:
; CHECK: @ %bb.0:
; CHECK-NEXT: ldrh r1, [r0]
; CHECK-NEXT: orr r1, r1, #65536
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: strh r1, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i16>, ptr %p
%tmp = call <1 x i16> @llvm.cttz.v1i16(<1 x i16> %a, i1 false)
store <1 x i16> %tmp, ptr %p
ret void
}
define void @test_v2i16(ptr %p) {
; CHECK-LABEL: test_v2i16:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: vmovl.u16 q8, d16
; CHECK-NEXT: vorr.i32 d16, #0x10000
; CHECK-NEXT: vneg.s32 d18, d16
; CHECK-NEXT: vand d16, d16, d18
; CHECK-NEXT: vmov.i32 d17, #0x1f
; CHECK-NEXT: vclz.i32 d16, d16
; CHECK-NEXT: vsub.i32 d16, d17, d16
; CHECK-NEXT: vuzp.16 d16, d17
; CHECK-NEXT: vst1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: bx lr
%a = load <2 x i16>, ptr %p
%tmp = call <2 x i16> @llvm.cttz.v2i16(<2 x i16> %a, i1 false)
store <2 x i16> %tmp, ptr %p
ret void
}
define void @test_v4i16(ptr %p) {
; CHECK-LABEL: test_v4i16:
; CHECK: @ %bb.0:
; CHECK-NEXT: vldr d16, [r0]
; CHECK-NEXT: vmov.i16 d18, #0x1
; CHECK-NEXT: vneg.s16 d17, d16
; CHECK-NEXT: vand d16, d16, d17
; CHECK-NEXT: vsub.i16 d16, d16, d18
; CHECK-NEXT: vcnt.8 d16, d16
; CHECK-NEXT: vpaddl.u8 d16, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <4 x i16>, ptr %p
%tmp = call <4 x i16> @llvm.cttz.v4i16(<4 x i16> %a, i1 false)
store <4 x i16> %tmp, ptr %p
ret void
}
define void @test_v8i16(ptr %p) {
; CHECK-LABEL: test_v8i16:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.64 {d16, d17}, [r0]
; CHECK-NEXT: vmov.i16 q10, #0x1
; CHECK-NEXT: vneg.s16 q9, q8
; CHECK-NEXT: vand q8, q8, q9
; CHECK-NEXT: vsub.i16 q8, q8, q10
; CHECK-NEXT: vcnt.8 q8, q8
; CHECK-NEXT: vpaddl.u8 q8, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <8 x i16>, ptr %p
%tmp = call <8 x i16> @llvm.cttz.v8i16(<8 x i16> %a, i1 false)
store <8 x i16> %tmp, ptr %p
ret void
}
define void @test_v1i32(ptr %p) {
; CHECK-LABEL: test_v1i32:
; CHECK: @ %bb.0:
; CHECK-NEXT: ldr r1, [r0]
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: str r1, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i32>, ptr %p
%tmp = call <1 x i32> @llvm.cttz.v1i32(<1 x i32> %a, i1 false)
store <1 x i32> %tmp, ptr %p
ret void
}
define void @test_v2i32(ptr %p) {
; CHECK-LABEL: test_v2i32:
; CHECK: @ %bb.0:
; CHECK-NEXT: vldr d16, [r0]
; CHECK-NEXT: vmov.i32 d18, #0x1
; CHECK-NEXT: vneg.s32 d17, d16
; CHECK-NEXT: vand d16, d16, d17
; CHECK-NEXT: vsub.i32 d16, d16, d18
; CHECK-NEXT: vcnt.8 d16, d16
; CHECK-NEXT: vpaddl.u8 d16, d16
; CHECK-NEXT: vpaddl.u16 d16, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <2 x i32>, ptr %p
%tmp = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %a, i1 false)
store <2 x i32> %tmp, ptr %p
ret void
}
define void @test_v4i32(ptr %p) {
; CHECK-LABEL: test_v4i32:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.64 {d16, d17}, [r0]
; CHECK-NEXT: vmov.i32 q10, #0x1
; CHECK-NEXT: vneg.s32 q9, q8
; CHECK-NEXT: vand q8, q8, q9
; CHECK-NEXT: vsub.i32 q8, q8, q10
; CHECK-NEXT: vcnt.8 q8, q8
; CHECK-NEXT: vpaddl.u8 q8, q8
; CHECK-NEXT: vpaddl.u16 q8, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <4 x i32>, ptr %p
%tmp = call <4 x i32> @llvm.cttz.v4i32(<4 x i32> %a, i1 false)
store <4 x i32> %tmp, ptr %p
ret void
}
define void @test_v1i64(ptr %p) {
; CHECK-LABEL: test_v1i64:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov.i32 d16, #0x0
; CHECK-NEXT: vldr d17, [r0]
; CHECK-NEXT: vmov.i64 d18, #0xffffffffffffffff
; CHECK-NEXT: vsub.i64 d16, d16, d17
; CHECK-NEXT: vand d16, d17, d16
; CHECK-NEXT: vadd.i64 d16, d16, d18
; CHECK-NEXT: vcnt.8 d16, d16
; CHECK-NEXT: vpaddl.u8 d16, d16
; CHECK-NEXT: vpaddl.u16 d16, d16
; CHECK-NEXT: vpaddl.u32 d16, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i64>, ptr %p
%tmp = call <1 x i64> @llvm.cttz.v1i64(<1 x i64> %a, i1 false)
store <1 x i64> %tmp, ptr %p
ret void
}
define void @test_v2i64(ptr %p) {
; CHECK-LABEL: test_v2i64:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov.i32 q8, #0x0
; CHECK-NEXT: vld1.64 {d18, d19}, [r0]
; CHECK-NEXT: vmov.i64 q10, #0xffffffffffffffff
; CHECK-NEXT: vsub.i64 q8, q8, q9
; CHECK-NEXT: vand q8, q9, q8
; CHECK-NEXT: vadd.i64 q8, q8, q10
; CHECK-NEXT: vcnt.8 q8, q8
; CHECK-NEXT: vpaddl.u8 q8, q8
; CHECK-NEXT: vpaddl.u16 q8, q8
; CHECK-NEXT: vpaddl.u32 q8, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <2 x i64>, ptr %p
%tmp = call <2 x i64> @llvm.cttz.v2i64(<2 x i64> %a, i1 false)
store <2 x i64> %tmp, ptr %p
ret void
}
;------------------------------------------------------------------------------
define void @test_v1i8_zero_undef(ptr %p) {
; CHECK-LABEL: test_v1i8_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: ldrb r1, [r0]
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: strb r1, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i8>, ptr %p
%tmp = call <1 x i8> @llvm.cttz.v1i8(<1 x i8> %a, i1 true)
store <1 x i8> %tmp, ptr %p
ret void
}
define void @test_v2i8_zero_undef(ptr %p) {
; CHECK-LABEL: test_v2i8_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.16 {d16[0]}, [r0:16]
; CHECK-NEXT: vmovl.u8 q8, d16
; CHECK-NEXT: vmovl.u16 q8, d16
; CHECK-NEXT: vneg.s32 d18, d16
; CHECK-NEXT: vand d16, d16, d18
; CHECK-NEXT: vmov.i32 d17, #0x1f
; CHECK-NEXT: vclz.i32 d16, d16
; CHECK-NEXT: vsub.i32 d16, d17, d16
; CHECK-NEXT: vmov.32 r1, d16[1]
; CHECK-NEXT: vmov.32 r2, d16[0]
; CHECK-NEXT: strb r1, [r0, #1]
; CHECK-NEXT: strb r2, [r0]
; CHECK-NEXT: bx lr
%a = load <2 x i8>, ptr %p
%tmp = call <2 x i8> @llvm.cttz.v2i8(<2 x i8> %a, i1 true)
store <2 x i8> %tmp, ptr %p
ret void
}
define void @test_v4i8_zero_undef(ptr %p) {
; CHECK-LABEL: test_v4i8_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: vmovl.u8 q8, d16
; CHECK-NEXT: vneg.s16 d18, d16
; CHECK-NEXT: vand d16, d16, d18
; CHECK-NEXT: vmov.i16 d17, #0xf
; CHECK-NEXT: vclz.i16 d16, d16
; CHECK-NEXT: vsub.i16 d16, d17, d16
; CHECK-NEXT: vuzp.8 d16, d17
; CHECK-NEXT: vst1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: bx lr
%a = load <4 x i8>, ptr %p
%tmp = call <4 x i8> @llvm.cttz.v4i8(<4 x i8> %a, i1 true)
store <4 x i8> %tmp, ptr %p
ret void
}
define void @test_v8i8_zero_undef(ptr %p) {
; CHECK-LABEL: test_v8i8_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vldr d16, [r0]
; CHECK-NEXT: vmov.i8 d18, #0x1
; CHECK-NEXT: vneg.s8 d17, d16
; CHECK-NEXT: vand d16, d16, d17
; CHECK-NEXT: vsub.i8 d16, d16, d18
; CHECK-NEXT: vcnt.8 d16, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <8 x i8>, ptr %p
%tmp = call <8 x i8> @llvm.cttz.v8i8(<8 x i8> %a, i1 true)
store <8 x i8> %tmp, ptr %p
ret void
}
define void @test_v16i8_zero_undef(ptr %p) {
; CHECK-LABEL: test_v16i8_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.64 {d16, d17}, [r0]
; CHECK-NEXT: vmov.i8 q10, #0x1
; CHECK-NEXT: vneg.s8 q9, q8
; CHECK-NEXT: vand q8, q8, q9
; CHECK-NEXT: vsub.i8 q8, q8, q10
; CHECK-NEXT: vcnt.8 q8, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <16 x i8>, ptr %p
%tmp = call <16 x i8> @llvm.cttz.v16i8(<16 x i8> %a, i1 true)
store <16 x i8> %tmp, ptr %p
ret void
}
define void @test_v1i16_zero_undef(ptr %p) {
; CHECK-LABEL: test_v1i16_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: ldrh r1, [r0]
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: strh r1, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i16>, ptr %p
%tmp = call <1 x i16> @llvm.cttz.v1i16(<1 x i16> %a, i1 true)
store <1 x i16> %tmp, ptr %p
ret void
}
define void @test_v2i16_zero_undef(ptr %p) {
; CHECK-LABEL: test_v2i16_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: vmovl.u16 q8, d16
; CHECK-NEXT: vneg.s32 d18, d16
; CHECK-NEXT: vand d16, d16, d18
; CHECK-NEXT: vmov.i32 d17, #0x1f
; CHECK-NEXT: vclz.i32 d16, d16
; CHECK-NEXT: vsub.i32 d16, d17, d16
; CHECK-NEXT: vuzp.16 d16, d17
; CHECK-NEXT: vst1.32 {d16[0]}, [r0:32]
; CHECK-NEXT: bx lr
%a = load <2 x i16>, ptr %p
%tmp = call <2 x i16> @llvm.cttz.v2i16(<2 x i16> %a, i1 true)
store <2 x i16> %tmp, ptr %p
ret void
}
define void @test_v4i16_zero_undef(ptr %p) {
; CHECK-LABEL: test_v4i16_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vldr d16, [r0]
; CHECK-NEXT: vneg.s16 d17, d16
; CHECK-NEXT: vand d16, d16, d17
; CHECK-NEXT: vmov.i16 d17, #0xf
; CHECK-NEXT: vclz.i16 d16, d16
; CHECK-NEXT: vsub.i16 d16, d17, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <4 x i16>, ptr %p
%tmp = call <4 x i16> @llvm.cttz.v4i16(<4 x i16> %a, i1 true)
store <4 x i16> %tmp, ptr %p
ret void
}
define void @test_v8i16_zero_undef(ptr %p) {
; CHECK-LABEL: test_v8i16_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.64 {d16, d17}, [r0]
; CHECK-NEXT: vneg.s16 q9, q8
; CHECK-NEXT: vand q8, q8, q9
; CHECK-NEXT: vmov.i16 q9, #0xf
; CHECK-NEXT: vclz.i16 q8, q8
; CHECK-NEXT: vsub.i16 q8, q9, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <8 x i16>, ptr %p
%tmp = call <8 x i16> @llvm.cttz.v8i16(<8 x i16> %a, i1 true)
store <8 x i16> %tmp, ptr %p
ret void
}
define void @test_v1i32_zero_undef(ptr %p) {
; CHECK-LABEL: test_v1i32_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: ldr r1, [r0]
; CHECK-NEXT: rbit r1, r1
; CHECK-NEXT: clz r1, r1
; CHECK-NEXT: str r1, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i32>, ptr %p
%tmp = call <1 x i32> @llvm.cttz.v1i32(<1 x i32> %a, i1 true)
store <1 x i32> %tmp, ptr %p
ret void
}
define void @test_v2i32_zero_undef(ptr %p) {
; CHECK-LABEL: test_v2i32_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vldr d16, [r0]
; CHECK-NEXT: vneg.s32 d17, d16
; CHECK-NEXT: vand d16, d16, d17
; CHECK-NEXT: vmov.i32 d17, #0x1f
; CHECK-NEXT: vclz.i32 d16, d16
; CHECK-NEXT: vsub.i32 d16, d17, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <2 x i32>, ptr %p
%tmp = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %a, i1 true)
store <2 x i32> %tmp, ptr %p
ret void
}
define void @test_v4i32_zero_undef(ptr %p) {
; CHECK-LABEL: test_v4i32_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vld1.64 {d16, d17}, [r0]
; CHECK-NEXT: vneg.s32 q9, q8
; CHECK-NEXT: vand q8, q8, q9
; CHECK-NEXT: vmov.i32 q9, #0x1f
; CHECK-NEXT: vclz.i32 q8, q8
; CHECK-NEXT: vsub.i32 q8, q9, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <4 x i32>, ptr %p
%tmp = call <4 x i32> @llvm.cttz.v4i32(<4 x i32> %a, i1 true)
store <4 x i32> %tmp, ptr %p
ret void
}
define void @test_v1i64_zero_undef(ptr %p) {
; CHECK-LABEL: test_v1i64_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov.i32 d16, #0x0
; CHECK-NEXT: vldr d17, [r0]
; CHECK-NEXT: vmov.i64 d18, #0xffffffffffffffff
; CHECK-NEXT: vsub.i64 d16, d16, d17
; CHECK-NEXT: vand d16, d17, d16
; CHECK-NEXT: vadd.i64 d16, d16, d18
; CHECK-NEXT: vcnt.8 d16, d16
; CHECK-NEXT: vpaddl.u8 d16, d16
; CHECK-NEXT: vpaddl.u16 d16, d16
; CHECK-NEXT: vpaddl.u32 d16, d16
; CHECK-NEXT: vstr d16, [r0]
; CHECK-NEXT: bx lr
%a = load <1 x i64>, ptr %p
%tmp = call <1 x i64> @llvm.cttz.v1i64(<1 x i64> %a, i1 true)
store <1 x i64> %tmp, ptr %p
ret void
}
define void @test_v2i64_zero_undef(ptr %p) {
; CHECK-LABEL: test_v2i64_zero_undef:
; CHECK: @ %bb.0:
; CHECK-NEXT: vmov.i32 q8, #0x0
; CHECK-NEXT: vld1.64 {d18, d19}, [r0]
; CHECK-NEXT: vmov.i64 q10, #0xffffffffffffffff
; CHECK-NEXT: vsub.i64 q8, q8, q9
; CHECK-NEXT: vand q8, q9, q8
; CHECK-NEXT: vadd.i64 q8, q8, q10
; CHECK-NEXT: vcnt.8 q8, q8
; CHECK-NEXT: vpaddl.u8 q8, q8
; CHECK-NEXT: vpaddl.u16 q8, q8
; CHECK-NEXT: vpaddl.u32 q8, q8
; CHECK-NEXT: vst1.64 {d16, d17}, [r0]
; CHECK-NEXT: bx lr
%a = load <2 x i64>, ptr %p
%tmp = call <2 x i64> @llvm.cttz.v2i64(<2 x i64> %a, i1 true)
store <2 x i64> %tmp, ptr %p
ret void
}
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