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| author | Evan Cheng <evan.cheng@apple.com> | 2006-01-26 09:53:06 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-01-26 09:53:06 +0000 |
| commit | 97c7fc351e4dd73041bc7e47c8a144216a50a648 (patch) | |
| tree | 058b2afbf458a63613f4a14107368640b541e0d0 /lib/Target/X86/X86Subtarget.cpp | |
| parent | b0636041c88d9e7d63bb8840df7eb18b96175f58 (diff) | |
| download | external_llvm-97c7fc351e4dd73041bc7e47c8a144216a50a648.zip external_llvm-97c7fc351e4dd73041bc7e47c8a144216a50a648.tar.gz external_llvm-97c7fc351e4dd73041bc7e47c8a144216a50a648.tar.bz2 | |
Added preliminary x86 subtarget support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25645 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 80f12b0..e523f14 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -13,11 +13,64 @@ #include "X86Subtarget.h" #include "llvm/Module.h" +#include "X86GenSubtarget.inc" using namespace llvm; +#if defined(__APPLE__) +#include <mach/mach.h> +#include <mach/mach_host.h> +#include <mach/host_info.h> +#include <mach/machine.h> + +/// GetCurrentX86CPU - Returns the current CPUs features. +static const char *GetCurrentX86CPU() { + host_basic_info_data_t hostInfo; + mach_msg_type_number_t infoCount; + + infoCount = HOST_BASIC_INFO_COUNT; + host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, + &infoCount); + + if (hostInfo.cpu_type != CPU_TYPE_I386) return "generic"; + + switch(hostInfo.cpu_subtype) { + case CPU_SUBTYPE_386: return "i386"; + case CPU_SUBTYPE_486: + case CPU_SUBTYPE_486SX: return "i486"; + case CPU_SUBTYPE_PENT: return "pentium"; + case CPU_SUBTYPE_PENTPRO: return "pentiumpro"; + case CPU_SUBTYPE_PENTII_M3: return "pentium2"; + case CPU_SUBTYPE_PENTII_M5: return "pentium2"; + case CPU_SUBTYPE_CELERON: + case CPU_SUBTYPE_CELERON_MOBILE: return "celeron"; + case CPU_SUBTYPE_PENTIUM_3: return "pentium3"; + case CPU_SUBTYPE_PENTIUM_3_M: return "pentium3m"; + case CPU_SUBTYPE_PENTIUM_3_XEON: return "pentium3"; // FIXME: not sure. + case CPU_SUBTYPE_PENTIUM_M: return "pentium-m"; + case CPU_SUBTYPE_PENTIUM_4: return "pentium4"; + case CPU_SUBTYPE_PENTIUM_4_M: return "pentium4m"; + // FIXME: prescott, yonah? Check CPU_THREADTYPE_INTEL_HTT? + case CPU_SUBTYPE_XEON: + case CPU_SUBTYPE_XEON_MP: return "nocona"; + default: ; + } + + return "generic"; +} +#endif + X86Subtarget::X86Subtarget(const Module &M, const std::string &FS) : stackAlignment(8), indirectExternAndWeakGlobals(false) { + // Determine default and user specified characteristics + std::string CPU = "generic"; +#if defined(__APPLE__) + CPU = GetCurrentX86CPU(); +#endif + + // Parse features string. + ParseSubtargetFeatures(FS, CPU); + // Default to ELF unless otherwise specified. TargetType = isELF; |