clang/test/CodeGen/attr-cpuspecific-avx-abi.c

   1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -target-feature +avx -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK
   2
   3 // Make sure the features from the command line are honored regardless of what
   4 // CPU is specified in the cpu_specific attribute.
   5 // In this test, if the 'avx' feature isn't honored, we'll generate an error for
   6 // the return type having a different ABI without 'avx' being enabled.
   7
   8 typedef double __m256d __attribute__((vector_size(32)));
   9
  10 extern __m256d bar_avx1(void);
  11 extern __m256d bar_avx2(void);
  12
  13 // AVX1/AVX2 dispatcher
  14 __attribute__((cpu_dispatch(generic, core_4th_gen_avx)))
  15 __m256d foo_pd64x4(void);
  16
  17 __attribute__((cpu_specific(generic)))
  18 __m256d foo(void) { return bar_avx1(); }
  19 // CHECK: define{{.*}} @foo.A() #[[A:[0-9]+]]
  20
  21 __attribute__((cpu_specific(core_4th_gen_avx)))
  22 __m256d foo(void) { return bar_avx2(); }
  23 // CHECK: define{{.*}} @foo.V() #[[V:[0-9]+]]
  24
  25 // CHECK: attributes #[[A]] = {{.*}}"target-features"="+avx,+crc32,+cx8,+mmx,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave"
  26 // CHECK-SAME: "tune-cpu"="generic"
  27 // CHECK: attributes #[[V]] = {{.*}}"target-features"="+avx,+avx2,+bmi,+bmi2,+cmov,+crc32,+cx16,+cx8,+f16c,+fma,+fsgsbase,+fxsr,+invpcid,+lzcnt,+mmx,+movbe,+pclmul,+popcnt,+rdrnd,+sahf,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave,+xsaveopt"
  28 // CHECK-SAME: "tune-cpu"="core_4th_gen_avx"