Changes in directory llvm/include/llvm/Target:
TargetLowering.h updated: 1.52 -> 1.53
---
Log message:
split register class handling from explicit physreg handling.
---
Diffs of the changes: (+16 -6)
TargetLowering.h | 22 ++++++++++++++++------
1 files changed, 16 insertions(+), 6 deletions(-)
Index: llvm/include/llvm/Target/TargetLowering.h
diff -u llvm/include/llvm/Target/TargetLowering.h:1.52
llvm/include/llvm/Target/TargetLowering.h:1.53
--- llvm/include/llvm/Target/TargetLowering.h:1.52 Tue Feb 21 17:10:29 2006
+++ llvm/include/llvm/Target/TargetLowering.h Tue Feb 21 18:56:01 2006
@@ -481,6 +481,7 @@
//
enum ConstraintType {
+ C_Register, // Constraint represents a single register.
C_RegisterClass, // Constraint represents one or more registers.
C_Other, // Something else.
C_Unknown // Unsupported constraint.
@@ -491,13 +492,22 @@
/// constraint it is for this target.
virtual ConstraintType getConstraintType(char ConstraintLetter) const;
- /// getRegForInlineAsmConstraint - Given a constraint letter or register
- /// name (e.g. "r" or "edx"), return a list of registers that can be used to
- /// satisfy the constraint. This should only be used for physregs and
- /// C_RegisterClass constraints.
+
+ /// getRegClassForInlineAsmConstraint - Given a constraint letter (e.g. "r"),
+ /// return a list of registers that can be used to satisfy the constraint.
+ /// This should only be used for C_RegisterClass constraints.
virtual std::vector<unsigned>
- getRegForInlineAsmConstraint(const std::string &Constraint,
- MVT::ValueType VT) const;
+ getRegClassForInlineAsmConstraint(const std::string &Constraint,
+ MVT::ValueType VT) const;
+
+ /// getRegForInlineAsmConstraint - Given a physical register constraint (e.g.
+ /// {edx}), return the register number and the register class for the
+ /// register. This should only be used for C_Register constraints. On
error,
+ /// this returns a register number of 0.
+ virtual std::pair<unsigned, const TargetRegisterClass*>
+ getRegForInlineAsmConstraint(const std::string &Constraint,
+ MVT::ValueType VT) const;
+
/// isOperandValidForConstraint - Return true if the specified SDOperand is
/// valid for the specified target constraint letter.
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