diff options
| -rw-r--r-- | clang/lib/Basic/Targets/X86.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp index 53b4c153e95..c0b2365e8df 100644 --- a/clang/lib/Basic/Targets/X86.cpp +++ b/clang/lib/Basic/Targets/X86.cpp @@ -1554,6 +1554,42 @@ bool X86TargetInfo::validateCpuIs(StringRef FeatureStr) const { .Default(false); } + +static unsigned matchAsmCCConstraint(const char *&Name) { + auto RV = llvm::StringSwitch<unsigned>(Name) + .Case("@cca", 4) + .Case("@ccae", 5) + .Case("@ccb", 4) + .Case("@ccbe", 5) + .Case("@ccc", 4) + .Case("@cce", 4) + .Case("@ccz", 4) + .Case("@ccg", 4) + .Case("@ccge", 4) + .Case("@ccl", 4) + .Case("@ccle", 5) + .Case("@ccna", 5) + .Case("@ccnae",6) + .Case("@ccnb", 5) + .Case("@ccnbe",6) + .Case("@ccnc", 5) + .Case("@ccne", 5) + .Case("@ccnz", 5) + .Case("@ccng", 5) + .Case("@ccnge",6) + .Case("@ccnl", 5) + .Case("@ccnle",6) + .Case("@ccno", 5) + .Case("@ccnp", 5) + .Case("@ccns", 5) + .Case("@cco", 4) + .Case("@ccp", 4) + .Case("@ccs", 4) + .Default(0); + return RV; +} + + bool X86TargetInfo::validateAsmConstraint( const char *&Name, TargetInfo::ConstraintInfo &Info) const { switch (*Name) { @@ -1636,6 +1672,14 @@ bool X86TargetInfo::validateAsmConstraint( case 'C': // SSE floating point constant. case 'G': // x87 floating point constant. return true; + case '@': + // CC condition changes. + if (auto Len = matchAsmCCConstraint(Name)) { + Name+=Len-1; + Info.setAllowsRegister(); + return true; + } + return false; } } @@ -1705,8 +1749,16 @@ bool X86TargetInfo::validateOperandSize(StringRef Constraint, return true; } +//niravd std::string X86TargetInfo::convertConstraint(const char *&Constraint) const { switch (*Constraint) { + case '@': + if (auto Len = matchAsmCCConstraint(Constraint)) { + std::string Converted = "{" + std::string(Constraint, Len) + "}"; + Constraint+=Len-1; + return Converted; + } + break; case 'a': return std::string("{ax}"); case 'b': |
