clang/test/Headers/xmmintrin.c

   1 // RUN: %clang_cc1 %s -ffreestanding -triple x86_64-apple-macosx10.9.0 -emit-llvm -o - | FileCheck %s
   2 //
   3 // RUN: rm -rf %t
   4 // RUN: %clang_cc1 %s -ffreestanding -triple x86_64-apple-macosx10.9.0 -emit-llvm -o - \
   5 // RUN:     -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -isystem %S/Inputs/include \
   6 // RUN:     | FileCheck %s
   7 // REQUIRES: x86-registered-target
   8 #include <xmmintrin.h>
   9
  10 // CHECK: @c ={{.*}} global i8 0, align 16
  11 _MM_ALIGN16 char c;
  12
  13 // Make sure the last step of _mm_cvtps_pi16 converts <4 x i32> to <4 x i16> by
  14 // checking that clang emits PACKSSDW instead of PACKSSWB.
  15
  16 // CHECK: define{{.*}} i64 @test_mm_cvtps_pi16
  17 // CHECK: call x86_mmx @llvm.x86.mmx.packssdw
  18
  19 __m64 test_mm_cvtps_pi16(__m128 a) {
  20   return _mm_cvtps_pi16(a);
  21 }
  22
  23 // Make sure that including <xmmintrin.h> also makes <emmintrin.h>'s content available.
  24 // This is an ugly hack for GCC compatibility.
  25 __m128d test_xmmintrin_provides_emmintrin(__m128d __a, __m128d __b) {
  26   return _mm_add_sd(__a, __b);
  27 }
  28
  29 #if __STDC_HOSTED__
  30 // Make sure stdlib.h symbols are accessible.
  31 void *p = NULL;
  32 #endif