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Add option and macro definition for AES instructions. Now produces real 

assembly for testcases.

llvm-svn: 100253
This commit is contained in:
Eric Christopher 2010-04-02 23:50:19 +00:00
parent 000e502eb1
commit e1ddaf911b
2 changed files with 22 additions and 2 deletions
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2
clang/include/clang/Driver/Options.td
View File

@ -431,6 +431,7 @@ def mno_sse4_1 : Flag<"-mno-sse4.1">, Group<m_x86_Features_Group>;
def mno_sse4_2 : Flag<"-mno-sse4.2">, Group<m_x86_Features_Group>;
def mno_sse : Flag<"-mno-sse">, Group<m_x86_Features_Group>;
def mno_ssse3 : Flag<"-mno-ssse3">, Group<m_x86_Features_Group>;
def mno_aes : Flag<"-mno-aes">, Group<m_x86_Features_Group>;
def mno_thumb : Flag<"-mno-thumb">, Group<m_Group>;
def marm : Flag<"-marm">, Alias<mno_thumb>;
@ -447,6 +448,7 @@ def msse4_1 : Flag<"-msse4.1">, Group<m_x86_Features_Group>;
def msse4_2 : Flag<"-msse4.2">, Group<m_x86_Features_Group>;
def msse : Flag<"-msse">, Group<m_x86_Features_Group>;
def mssse3 : Flag<"-mssse3">, Group<m_x86_Features_Group>;
def maes : Flag<"-maes">, Group<m_x86_Features_Group>;
def mthumb : Flag<"-mthumb">, Group<m_Group>;
def mtune_EQ : Joined<"-mtune=">, Group<m_Group>;
def multi__module : Flag<"-multi_module">;

22
clang/lib/Basic/Targets.cpp
View File

@ -765,9 +765,12 @@ class X86TargetInfo : public TargetInfo {
NoAMD3DNow, AMD3DNow, AMD3DNowAthlon
} AMD3DNowLevel;
bool HasAES;
public:
X86TargetInfo(const std::string& triple)
: TargetInfo(triple), SSELevel(NoMMXSSE), AMD3DNowLevel(NoAMD3DNow) {
: TargetInfo(triple), SSELevel(NoMMXSSE), AMD3DNowLevel(NoAMD3DNow),
HasAES(false) {
LongDoubleFormat = &llvm::APFloat::x87DoubleExtended;
}
virtual void getTargetBuiltins(const Builtin::Info *&Records,
@ -813,6 +816,7 @@ void X86TargetInfo::getDefaultFeatures(const std::string &CPU,
Features["ssse3"] = false;
Features["sse41"] = false;
Features["sse42"] = false;
Features["aes"] = false;
// LLVM does not currently recognize this.
// Features["sse4a"] = false;
@ -841,8 +845,10 @@ void X86TargetInfo::getDefaultFeatures(const std::string &CPU,
Features["sse42"] = false;
} else if (CPU == "atom")
setFeatureEnabled(Features, "sse3", true);
else if (CPU == "corei7")
else if (CPU == "corei7") {
setFeatureEnabled(Features, "sse4", true);
setFeatureEnabled(Features, "aes", true);
}
else if (CPU == "k6" || CPU == "winchip-c6")
setFeatureEnabled(Features, "mmx", true);
else if (CPU == "k6-2" || CPU == "k6-3" || CPU == "athlon" ||
@ -892,6 +898,8 @@ bool X86TargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
Features["3dnowa"] = true;
else if (Name == "3dnowa")
Features["3dnow"] = Features["3dnowa"] = true;
else if (Name == "aes")
Features["aes"] = true;
} else {
if (Name == "mmx")
Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
@ -917,6 +925,8 @@ bool X86TargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
Features["3dnow"] = Features["3dnowa"] = false;
else if (Name == "3dnowa")
Features["3dnowa"] = false;
else if (Name == "aes")
Features["aes"] = false;
}
return true;
@ -931,6 +941,11 @@ void X86TargetInfo::HandleTargetFeatures(std::vector<std::string> &Features) {
if (Features[i][0] == '-')
continue;
if (Features[i].substr(1) == "aes") {
HasAES = true;
continue;
}
assert(Features[i][0] == '+' && "Invalid target feature!");
X86SSEEnum Level = llvm::StringSwitch<X86SSEEnum>(Features[i].substr(1))
.Case("sse42", SSE42)
@ -969,6 +984,9 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
DefineStd(Builder, "i386", Opts);
}
if (HasAES)
Builder.defineMacro("__AES__");
// Target properties.
Builder.defineMacro("__LITTLE_ENDIAN__");