Add another workaround for Clang on PowerPC

This commit is contained in:
Jeffrey Walton 2019-10-23 13:10:04 -04:00
parent c5be67b64a
commit c904a7f846
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
2 changed files with 19 additions and 38 deletions

View File

@ -1,41 +1,11 @@
#include <altivec.h> #include <altivec.h>
// This follows ppc_simd.h. XLC compilers for POWER7 use vec_xlw4 and
// vec_xstw4. Some XLC compilers for POWER7 and above use vec_xl and
// vec_xst. The way to tell the difference is, XLC compilers version
// 13.0 and earlier use use vec_xlw4 and vec_xstw4 XLC compilers 13.1
// and later are use vec_xl and vec_xst. The open question is, how to
// handle early Clang compilers for POWER7. We know the latest Clang
// compilers support vec_xl and vec_xst. Also see
// https://www-01.ibm.com/support/docview.wss?uid=swg21683541
#if defined(__xlc__) && (__xlc__ < 0x0d01)
# define __early_xlc__ 1
#endif
#if defined(__xlC__) && (__xlC__ < 0x0d01)
# define __early_xlC__ 1
#endif
int main(int argc, char* argv[]) int main(int argc, char* argv[])
{ {
__vector unsigned char x; #if defined(_ARCH_PWR7)
unsigned char res[16]; __vector unsigned long long z = {1, 2};
z=vec_add(z, vec_xl(0, (unsigned long long*)argv[0]));
#if defined(_ARCH_PWR7) && (defined(__early_xlc__) || defined(__early_xlC__))
x=vec_xlw4(0, (unsigned char*)argv[0]);
x=vec_add(x,x);
vec_xstw4(x, 0, res);
#elif defined(_ARCH_PWR7) && (defined(__xlc__) || defined(__xlC__) || defined(__clang__))
x=vec_xl(0, (unsigned char*)argv[0]);
x=vec_add(x,x);
vec_xst(x, 0, res);
#elif defined(_ARCH_PWR7) && defined(__GNUC__)
x=vec_vsx_ld(0, (unsigned char*)argv[0]);
x=vec_add(x,x);
vec_vsx_st(x, 0, res);
#else #else
int XXX[-1]; int x[-1];
#endif #endif
return 0; return 0;
} }

View File

@ -1,7 +1,18 @@
#include <altivec.h> #include <altivec.h>
int main(int argc, char* argv[]) int main(int argc, char* argv[])
{ {
__vector unsigned long long z = {1, 2}; #if defined(_ARCH_PWR8)
z=vec_add(z,z); __vector unsigned long long x = {1, 2};
return 0; __vector unsigned long long y = vec_xl(0, (unsigned long long*)argv[0]);
# if defined(__ibmxl__) || (defined(_AIX) && defined(__xlC__))
__vector unsigned long long z = __vpmsumd (x, y);
# elif defined(__clang__)
__vector unsigned long long z = __builtin_altivec_crypto_vpmsumd (x, y);
# else
__vector unsigned long long z = __builtin_crypto_vpmsumd (x, y);
# endif
#else
int x[-1];
#endif
return 0;
} }