Changes in directory llvm/lib/Target/X86:
X86ISelLowering.cpp updated: 1.235 -> 1.236 X86ISelLowering.h updated: 1.68 -> 1.69 --- Log message: Implement the inline asm 'A' constraint. This implements PR825: http://llvm.org/PR825 and CodeGen/X86/2006-07-10-InlineAsmAConstraint.ll --- Diffs of the changes: (+17 -1) X86ISelLowering.cpp | 16 +++++++++++++++- X86ISelLowering.h | 2 ++ 2 files changed, 17 insertions(+), 1 deletion(-) Index: llvm/lib/Target/X86/X86ISelLowering.cpp diff -u llvm/lib/Target/X86/X86ISelLowering.cpp:1.235 llvm/lib/Target/X86/X86ISelLowering.cpp:1.236 --- llvm/lib/Target/X86/X86ISelLowering.cpp:1.235 Mon Jul 10 16:37:44 2006 +++ llvm/lib/Target/X86/X86ISelLowering.cpp Mon Jul 10 21:54:03 2006 @@ -4135,6 +4135,16 @@ // X86 Inline Assembly Support //===----------------------------------------------------------------------===// +/// getConstraintType - Given a constraint letter, return the type of +/// constraint it is for this target. +X86TargetLowering::ConstraintType +X86TargetLowering::getConstraintType(char ConstraintLetter) const { + switch (ConstraintLetter) { + case 'A': return C_RegisterClass; + default: return TargetLowering::getConstraintType(ConstraintLetter); + } +} + std::vector<unsigned> X86TargetLowering:: getRegClassForInlineAsmConstraint(const std::string &Constraint, MVT::ValueType VT) const { @@ -4142,7 +4152,11 @@ // FIXME: not handling fp-stack yet! // FIXME: not handling MMX registers yet ('y' constraint). switch (Constraint[0]) { // GCC X86 Constraint Letters - default: break; // Unknown constriant letter + default: break; // Unknown constraint letter + case 'A': // EAX/EDX + if (VT == MVT::i32 || VT == MVT::i64) + return make_vector<unsigned>(X86::EAX, X86::EDX, 0); + break; case 'r': // GENERAL_REGS case 'R': // LEGACY_REGS if (VT == MVT::i32) Index: llvm/lib/Target/X86/X86ISelLowering.h diff -u llvm/lib/Target/X86/X86ISelLowering.h:1.68 llvm/lib/Target/X86/X86ISelLowering.h:1.69 --- llvm/lib/Target/X86/X86ISelLowering.h:1.68 Fri Jul 7 03:33:52 2006 +++ llvm/lib/Target/X86/X86ISelLowering.h Mon Jul 10 21:54:03 2006 @@ -310,6 +310,8 @@ SDOperand getReturnAddressFrameIndex(SelectionDAG &DAG); + ConstraintType getConstraintType(char ConstraintLetter) const; + std::vector<unsigned> getRegClassForInlineAsmConstraint(const std::string &Constraint, MVT::ValueType VT) const; _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
