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add support for the 'w' inline asm register class.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35598 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-04-02 17:24:08 +00:00
parent 0cf10286d5
commit c4e3f8e736
1 changed files with 28 additions and 6 deletions
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34
lib/Target/ARM/ARMISelLowering.cpp
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@ -1598,6 +1598,7 @@ ARMTargetLowering::getConstraintType(const std::string &Constraint) const {
switch (Constraint[0]) {
default: break;
case 'l': return C_RegisterClass;
case 'w': return C_RegisterClass;
}
}
return TargetLowering::getConstraintType(Constraint);
@ -1609,12 +1610,17 @@ ARMTargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
if (Constraint.size() == 1) {
// GCC RS6000 Constraint Letters
switch (Constraint[0]) {
case 'l':
// FIXME: in thumb mode, 'l' is only low-regs.
// FALL THROUGH.
case 'r':
return std::make_pair(0U, ARM::GPRRegisterClass);
break;
case 'l':
// FIXME: in thumb mode, 'l' is only low-regs.
// FALL THROUGH.
case 'r':
return std::make_pair(0U, ARM::GPRRegisterClass);
case 'w':
if (VT == MVT::f32)
return std::make_pair(0U, ARM::SPRRegisterClass);
if (VT == MVT::f32)
return std::make_pair(0U, ARM::DPRRegisterClass);
break;
}
}
return TargetLowering::getRegForInlineAsmConstraint(Constraint, VT);
@ -1634,6 +1640,22 @@ getRegClassForInlineAsmConstraint(const std::string &Constraint,
ARM::R4, ARM::R5, ARM::R6, ARM::R7,
ARM::R8, ARM::R9, ARM::R10, ARM::R11,
ARM::R12, ARM::LR, 0);
case 'w':
if (VT == MVT::f32)
return make_vector<unsigned>(ARM::S0, ARM::S1, ARM::S2, ARM::S3,
ARM::S4, ARM::S5, ARM::S6, ARM::S7,
ARM::S8, ARM::S9, ARM::S10, ARM::S11,
ARM::S12,ARM::S13,ARM::S14,ARM::S15,
ARM::S16,ARM::S17,ARM::S18,ARM::S19,
ARM::S20,ARM::S21,ARM::S22,ARM::S23,
ARM::S24,ARM::S25,ARM::S26,ARM::S27,
ARM::S28,ARM::S29,ARM::S30,ARM::S31, 0);
if (VT == MVT::f64)
return make_vector<unsigned>(ARM::D0, ARM::D1, ARM::D2, ARM::D3,
ARM::D4, ARM::D5, ARM::D6, ARM::D7,
ARM::D8, ARM::D9, ARM::D10,ARM::D11,
ARM::D12,ARM::D13,ARM::D14,ARM::D15, 0);
break;
}
return std::vector<unsigned>();