clang/test/CodeGen/vector.c

   1 // RUN: %clang_cc1 -ffreestanding -triple i386-apple-darwin9 -O1 -target-cpu corei7 -debug-info-kind=limited -emit-llvm %s -o - | FileCheck %s
   2 typedef short __v4hi __attribute__ ((__vector_size__ (8)));
   3
   4 void test1(void) {
   5   __v4hi A = (__v4hi)0LL;
   6 }
   7
   8 __v4hi x = {1,2,3};
   9 __v4hi y = {1,2,3,4};
  10
  11 typedef int vty __attribute((vector_size(16)));
  12 int test2(void) { vty b; return b[2LL]; }
  13
  14 // PR4339
  15 typedef float vec4 __attribute__((vector_size(16)));
  16
  17 void test3 ( vec4* a, char b, float c ) {
  18   (*a)[b] = c;
  19 }
  20
  21
  22
  23
  24 #include <mmintrin.h>
  25
  26 int test4(int argc, char *argv[]) {
  27   int array[16] = { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 };
  28   __m64 *p = (__m64 *)array;
  29
  30   __m64 accum = _mm_setzero_si64();
  31
  32   for (int i=0; i<8; ++i)
  33      accum = _mm_add_pi32(p[i], accum);
  34
  35   __m64 accum2 = _mm_unpackhi_pi32(accum, accum);
  36   accum = _mm_add_pi32(accum, accum2);
  37
  38   int result = _mm_cvtsi64_si32(accum);
  39   _mm_empty();
  40
  41   return result;
  42 }
  43
  44 #include <smmintrin.h>
  45
  46 unsigned long test_epi8(__m128i x) { return _mm_extract_epi8(x, 4); }
  47 // CHECK: @test_epi8
  48 // CHECK: extractelement <16 x i8> {{.*}}, {{i32|i64}} 4
  49 // CHECK: zext i8 {{.*}} to i32
  50
  51 unsigned long test_epi16(__m128i x) { return _mm_extract_epi16(x, 3); }
  52
  53 // CHECK: @test_epi16
  54 // CHECK: extractelement <8 x i16> {{.*}}, {{i32|i64}} 3
  55 // CHECK: zext i16 {{.*}} to i32
  56
  57 void extractinttypes(void) {
  58   extern int check_extract_result_int;
  59   extern __typeof(_mm_extract_epi8(_mm_setzero_si128(), 3)) check_result_int;
  60   extern __typeof(_mm_extract_epi16(_mm_setzero_si128(), 3)) check_result_int;
  61   extern __typeof(_mm_extract_epi32(_mm_setzero_si128(), 3)) check_result_int;
  62 }
  63
  64 // Test some logic around our lax vector comparison rules with integers.
  65
  66 typedef int vec_int1 __attribute__((vector_size(4)));
  67 vec_int1 lax_vector_compare1(int x, vec_int1 y) {
  68   y = x == y;
  69   return y;
  70 }
  71
  72 // CHECK: define{{.*}} i32 @lax_vector_compare1(i32 {{.*}}, i32 {{.*}})
  73 // CHECK: icmp eq i32
  74
  75 typedef int vec_int2 __attribute__((vector_size(8)));
  76 vec_int2 lax_vector_compare2(long long x, vec_int2 y) {
  77   y = x == y;
  78   return y;
  79 }
  80
  81 // CHECK: define{{.*}} void @lax_vector_compare2(ptr {{.*sret.*}}, i64 {{.*}}, i64 {{.*}})
  82 // CHECK: icmp eq <2 x i32>