clang/test/CodeGen/palignr.c

   1 // REQUIRES: x86-registered-target
   2 // RUN: %clang_cc1 %s -triple=i686-apple-darwin -target-feature +ssse3 -O1 -S -o - | FileCheck %s
   3
   4 #define _mm_alignr_epi8(a, b, n) (__builtin_ia32_palignr128((a), (b), (n)))
   5 typedef __attribute__((vector_size(16))) int int4;
   6
   7 // CHECK: palignr $15, %xmm1, %xmm0
   8 int4 align1(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 15); }
   9 // CHECK: ret
  10 // CHECK: ret
  11 // CHECK-NOT: palignr
  12 int4 align2(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 16); }
  13 // CHECK: psrldq $1, %xmm0
  14 int4 align3(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 17); }
  15 // CHECK: xor
  16 int4 align4(int4 a, int4 b) { return _mm_alignr_epi8(a, b, 32); }
  17
  18 #define _mm_alignr_pi8(a, b, n) (__builtin_ia32_palignr((a), (b), (n)))
  19 typedef __attribute__((vector_size(8))) int int2;
  20
  21 // CHECK: palignr
  22 int2 align5(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 8); }
  23
  24 // CHECK: palignr
  25 int2 align6(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 9); }
  26
  27 // CHECK: palignr
  28 int2 align7(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 16); }
  29
  30 // CHECK: palignr
  31 int2 align8(int2 a, int2 b) { return _mm_alignr_pi8(a, b, 7); }