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Fix POWER7 runtime detection test (GH #742)

pull/748/head
Jeffrey Walton 2018-11-19 18:31:00 -05:00
parent 0de4556b39
commit 215f9dc164
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GPG Key ID: B36AB348921B1838
1 changed files with 6 additions and 4 deletions
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10
ppc_power7.cpp
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@ -38,7 +38,7 @@ extern "C" {
#endif // CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
#if (CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64)
bool CPU_ProbePower7()
bool CPU_ProbePower7()
{
#if defined(CRYPTOPP_NO_CPU_FEATURE_PROBES)
return false;
@ -65,10 +65,12 @@ extern "C" {
byte b1[19] = {255, 255, 255, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, b2[17];
// Specifically call the VSX loads and stores
#if defined(__ibmxl__) || (defined(_AIX) && defined(__xlC__))
vec_xst(vec_xl(0, b1+3), 0, b2+1);
#if defined(__old_xlc__) || defined(__old_xlC__)
vec_xstw4(vec_xlw4(0, b1+3), 0, b2+1);
#elif defined(__xlc__) || defined(__xlC__) || defined(__clang__)
vec_xst(vec_xl(0, b1+3), 0, b2+1);
#else
vec_vsx_st(vec_vsx_ld(0, b1+3), 0, b2+1);
vec_vsx_st(vec_vsx_ld(0, b1+3), 0, b2+1);
#endif
result = (0 == std::memcmp(b1+3, b2+1, 16));