1 // REQUIRES: arm-registered-target
2 // RUN: %clang_cc1 -triple thumbv7-apple-darwin \
3 // RUN:   -target-abi apcs-gnu \
4 // RUN:   -target-cpu cortex-a8 \
5 // RUN:   -mfloat-abi soft \
6 // RUN:   -target-feature +soft-float-abi \
7 // RUN:   -ffreestanding \
8 // RUN:   -emit-llvm -w -o - %s | FileCheck %s
9 
10 #include <arm_neon.h>
11 
12 // Radar 11998303: Avoid using i64 types for vld1q_lane and vst1q_lane Neon
13 // intrinsics with <2 x i64> vectors to avoid poor code for i64 in the backend.
14 void t1(uint64_t *src, uint8_t *dst) {
15 // CHECK: @t1
16   uint64x2_t q = vld1q_u64(src);
17 // CHECK: call <2 x i64> @llvm.arm.neon.vld1.v2i64
18   vst1q_lane_u64(dst, q, 1);
19 // CHECK: bitcast <16 x i8> %{{.*}} to <2 x i64>
20 // CHECK: shufflevector <2 x i64>
21 // CHECK: call void @llvm.arm.neon.vst1.v1i64
22 }
23 
24 void t2(uint64_t *src1, uint8_t *src2, uint64x2_t *dst) {
25 // CHECK: @t2
26     uint64x2_t q = vld1q_u64(src1);
27 // CHECK: call <2 x i64> @llvm.arm.neon.vld1.v2i64
28     q = vld1q_lane_u64(src2, q, 0);
29 // CHECK: shufflevector <2 x i64>
30 // CHECK: call <1 x i64> @llvm.arm.neon.vld1.v1i64
31 // CHECK: shufflevector <1 x i64>
32     *dst = q;
33 // CHECK: store <2 x i64>
34 }
35