[SPARC] Support 'f' and 'e' inline asm constraints.
Based on patch by Patrick Boettcher and Chris Dewhurst.
Differential Revision: https://reviews.llvm.org/D29116
llvm-svn: 302911
diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index bf0eb15..9e7e3c6 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -3384,7 +3384,10 @@
if (Constraint.size() == 1) {
switch (Constraint[0]) {
default: break;
- case 'r': return C_RegisterClass;
+ case 'r':
+ case 'f':
+ case 'e':
+ return C_RegisterClass;
case 'I': // SIMM13
return C_Other;
}
@@ -3463,6 +3466,24 @@
return std::make_pair(0U, &SP::IntPairRegClass);
else
return std::make_pair(0U, &SP::IntRegsRegClass);
+ case 'f':
+ if (VT == MVT::f32)
+ return std::make_pair(0U, &SP::FPRegsRegClass);
+ else if (VT == MVT::f64)
+ return std::make_pair(0U, &SP::LowDFPRegsRegClass);
+ else if (VT == MVT::f128)
+ return std::make_pair(0U, &SP::LowQFPRegsRegClass);
+ llvm_unreachable("Unknown ValueType for f-register-type!");
+ break;
+ case 'e':
+ if (VT == MVT::f32)
+ return std::make_pair(0U, &SP::FPRegsRegClass);
+ else if (VT == MVT::f64)
+ return std::make_pair(0U, &SP::DFPRegsRegClass);
+ else if (VT == MVT::f128)
+ return std::make_pair(0U, &SP::QFPRegsRegClass);
+ llvm_unreachable("Unknown ValueType for e-register-type!");
+ break;
}
} else if (!Constraint.empty() && Constraint.size() <= 5
&& Constraint[0] == '{' && *(Constraint.end()-1) == '}') {