Changes in directory llvm/lib/Target:
TargetLowering.cpp updated: 1.34 -> 1.35
---
Log message:
split register class handling from explicit physreg handling.
---
Diffs of the changes: (+21 -11)
TargetLowering.cpp | 32 +++++++++++++++++++++-----------
1 files changed, 21 insertions(+), 11 deletions(-)
Index: llvm/lib/Target/TargetLowering.cpp
diff -u llvm/lib/Target/TargetLowering.cpp:1.34
llvm/lib/Target/TargetLowering.cpp:1.35
--- llvm/lib/Target/TargetLowering.cpp:1.34 Tue Feb 21 17:11:00 2006
+++ llvm/lib/Target/TargetLowering.cpp Tue Feb 21 18:56:38 2006
@@ -745,24 +745,34 @@
std::vector<unsigned> TargetLowering::
+getRegClassForInlineAsmConstraint(const std::string &Constraint,
+ MVT::ValueType VT) const {
+ return std::vector<unsigned>();
+}
+
+
+std::pair<unsigned, const TargetRegisterClass*> TargetLowering::
getRegForInlineAsmConstraint(const std::string &Constraint,
MVT::ValueType VT) const {
- // Not a physreg, must not be a register reference or something.
- if (Constraint[0] != '{') return std::vector<unsigned>();
+ if (Constraint[0] != '{')
+ return std::pair<unsigned, const TargetRegisterClass*>(0, 0);
assert(*(Constraint.end()-1) == '}' && "Not a brace enclosed constraint?");
// Remove the braces from around the name.
std::string RegName(Constraint.begin()+1, Constraint.end()-1);
-
- // Scan to see if this constraint is a register name.
+
+ // Figure out which register class contains this reg.
const MRegisterInfo *RI = TM.getRegisterInfo();
- for (unsigned i = 1, e = RI->getNumRegs(); i != e; ++i) {
- if (const char *Name = RI->get(i).Name)
- if (StringsEqualNoCase(RegName, Name))
- return std::vector<unsigned>(1, i);
+ for (MRegisterInfo::regclass_iterator RCI = RI->regclass_begin(),
+ E = RI->regclass_end(); RCI != E; ++RCI) {
+ const TargetRegisterClass *RC = *RCI;
+ for (TargetRegisterClass::iterator I = RC->begin(), E = RC->end();
+ I != E; ++I) {
+ if (StringsEqualNoCase(RegName, RI->get(*I).Name)) {
+ return std::make_pair(*I, RC);
+ }
+ }
}
- // Unknown physreg.
- return std::vector<unsigned>();
+ return std::pair<unsigned, const TargetRegisterClass*>(0, 0);
}
-
_______________________________________________
llvm-commits mailing list
llvm-commits@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
