diff options
| author | Anton Korobeynikov <asl@math.spbu.ru> | 2007-03-23 23:46:48 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2007-03-23 23:46:48 +0000 |
| commit | 3b5ee73a13f3b6c70b8d14827da3ee72260fc963 (patch) | |
| tree | aace258842cf791e5502aa1bdbbe6a51d4a33836 /lib/Target/X86/X86Subtarget.cpp | |
| parent | b172ab0533a9fd6f6a5fdfcc3a3642b6c1040c65 (diff) | |
Autodetect MMX & SSE stuff for AMD processors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35292 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 89f69d9feb..cd6fb034e0 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -106,19 +106,20 @@ void X86Subtarget::AutoDetectSubtargetFeatures() { if (X86::GetCpuIDAndInfo(0, &EAX, text.u+0, text.u+2, text.u+1)) return; - - // FIXME: support for AMD family of processors. - if (memcmp(text.c, "GenuineIntel", 12) == 0) { - X86::GetCpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX); - if ((EDX >> 23) & 0x1) X86SSELevel = MMX; - if ((EDX >> 25) & 0x1) X86SSELevel = SSE1; - if ((EDX >> 26) & 0x1) X86SSELevel = SSE2; - if (ECX & 0x1) X86SSELevel = SSE3; + X86::GetCpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX); + + if ((EDX >> 23) & 0x1) X86SSELevel = MMX; + if ((EDX >> 25) & 0x1) X86SSELevel = SSE1; + if ((EDX >> 26) & 0x1) X86SSELevel = SSE2; + if (ECX & 0x1) X86SSELevel = SSE3; + if (memcmp(text.c, "GenuineIntel", 12) == 0) { X86::GetCpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX); HasX86_64 = (EDX >> 29) & 0x1; - } + } else if (memcmp(text.c, "AuthenticAMD", 12) == 0) { + // FIXME: Correctly check for 64-bit stuff + } } static const char *GetCurrentX86CPU() { @@ -203,10 +204,10 @@ static const char *GetCurrentX86CPU() { } case 15: switch (Model) { + case 1: return "opteron"; case 5: return "athlon-fx"; // also opteron default: return "athlon64"; } - default: return "generic"; } |