clang/test/CodeGen/arm-neon-vget.c

   1 // RUN: %clang_cc1 -triple thumbv7-apple-darwin \
   2 // RUN:   -target-abi apcs-gnu \
   3 // RUN:   -target-cpu cortex-a8 \
   4 // RUN:   -mfloat-abi soft \
   5 // RUN:   -target-feature +soft-float-abi \
   6 // RUN:   -ffreestanding \
   7 // RUN:   -disable-O0-optnone -emit-llvm -w -o - %s | opt -S -passes=mem2reg | FileCheck %s
   8
   9 // REQUIRES: aarch64-registered-target || arm-registered-target
  10
  11 #include <arm_neon.h>
  12
  13 // Check that the vget_low/vget_high intrinsics generate a single shuffle
  14 // without any bitcasting.
  15 int8x8_t low_s8(int8x16_t a) {
  16 // CHECK: shufflevector <16 x i8> %a, <16 x i8> %a, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
  17   return vget_low_s8(a);
  18 }
  19
  20 uint8x8_t low_u8 (uint8x16_t a) {
  21 // CHECK: shufflevector <16 x i8> %a, <16 x i8> %a, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
  22   return vget_low_u8(a);
  23 }
  24
  25 int16x4_t low_s16( int16x8_t a) {
  26 // CHECK: shufflevector <8 x i16> %a, <8 x i16> %a, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
  27   return vget_low_s16(a);
  28 }
  29
  30 uint16x4_t low_u16(uint16x8_t a) {
  31 // CHECK: shufflevector <8 x i16> %a, <8 x i16> %a, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
  32   return vget_low_u16(a);
  33 }
  34
  35 int32x2_t low_s32( int32x4_t a) {
  36 // CHECK: shufflevector <4 x i32> %a, <4 x i32> %a, <2 x i32> <i32 0, i32 1>
  37   return vget_low_s32(a);
  38 }
  39
  40 uint32x2_t low_u32(uint32x4_t a) {
  41 // CHECK: shufflevector <4 x i32> %a, <4 x i32> %a, <2 x i32> <i32 0, i32 1>
  42   return vget_low_u32(a);
  43 }
  44
  45 int64x1_t low_s64( int64x2_t a) {
  46 // CHECK: shufflevector <2 x i64> %a, <2 x i64> %a, <1 x i32> zeroinitializer
  47   return vget_low_s64(a);
  48 }
  49
  50 uint64x1_t low_u64(uint64x2_t a) {
  51 // CHECK: shufflevector <2 x i64> %a, <2 x i64> %a, <1 x i32> zeroinitializer
  52   return vget_low_u64(a);
  53 }
  54
  55 poly8x8_t low_p8 (poly8x16_t a) {
  56 // CHECK: shufflevector <16 x i8> %a, <16 x i8> %a, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
  57   return vget_low_p8(a);
  58 }
  59
  60 poly16x4_t low_p16(poly16x8_t a) {
  61 // CHECK: shufflevector <8 x i16> %a, <8 x i16> %a, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
  62   return vget_low_p16(a);
  63 }
  64
  65 float32x2_t low_f32(float32x4_t a) {
  66 // CHECK: shufflevector <4 x float> %a, <4 x float> %a, <2 x i32> <i32 0, i32 1>
  67   return vget_low_f32(a);
  68 }
  69
  70
  71 int8x8_t high_s8(int8x16_t a) {
  72 // CHECK: shufflevector <16 x i8> %a, <16 x i8> %a, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
  73   return vget_high_s8(a);
  74 }
  75
  76 uint8x8_t high_u8 (uint8x16_t a) {
  77 // CHECK: shufflevector <16 x i8> %a, <16 x i8> %a, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
  78   return vget_high_u8(a);
  79 }
  80
  81 int16x4_t high_s16( int16x8_t a) {
  82 // CHECK: shufflevector <8 x i16> %a, <8 x i16> %a, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
  83   return vget_high_s16(a);
  84 }
  85
  86 uint16x4_t high_u16(uint16x8_t a) {
  87 // CHECK: shufflevector <8 x i16> %a, <8 x i16> %a, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
  88   return vget_high_u16(a);
  89 }
  90
  91 int32x2_t high_s32( int32x4_t a) {
  92 // CHECK: shufflevector <4 x i32> %a, <4 x i32> %a, <2 x i32> <i32 2, i32 3>
  93   return vget_high_s32(a);
  94 }
  95
  96 uint32x2_t high_u32(uint32x4_t a) {
  97 // CHECK: shufflevector <4 x i32> %a, <4 x i32> %a, <2 x i32> <i32 2, i32 3>
  98   return vget_high_u32(a);
  99 }
 100
 101 int64x1_t high_s64( int64x2_t a) {
 102 // CHECK: shufflevector <2 x i64> %a, <2 x i64> %a, <1 x i32> <i32 1>
 103   return vget_high_s64(a);
 104 }
 105
 106 uint64x1_t high_u64(uint64x2_t a) {
 107 // CHECK: shufflevector <2 x i64> %a, <2 x i64> %a, <1 x i32> <i32 1>
 108   return vget_high_u64(a);
 109 }
 110
 111 poly8x8_t high_p8 (poly8x16_t a) {
 112 // CHECK: shufflevector <16 x i8> %a, <16 x i8> %a, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
 113   return vget_high_p8(a);
 114 }
 115
 116 poly16x4_t high_p16(poly16x8_t a) {
 117 // CHECK: shufflevector <8 x i16> %a, <8 x i16> %a, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
 118   return vget_high_p16(a);
 119 }
 120
 121 float32x2_t high_f32(float32x4_t a) {
 122 // CHECK: shufflevector <4 x float> %a, <4 x float> %a, <2 x i32> <i32 2, i32 3>
 123   return vget_high_f32(a);
 124 }
 125