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Add the 'c' constraint as needed by the linux kernel

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29747 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth 2006-08-17 16:07:50 +00:00
parent c63e56ee5f
commit d337295fb0
1 changed files with 7 additions and 2 deletions
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9
lib/Target/X86/X86ISelLowering.cpp
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@ -4186,6 +4186,7 @@ X86TargetLowering::getConstraintType(char ConstraintLetter) const {
case 'Y':
case 'S':
case 'D':
case 'c':
return C_RegisterClass;
default: return TargetLowering::getConstraintType(ConstraintLetter);
}
@ -4201,11 +4202,15 @@ getRegClassForInlineAsmConstraint(const std::string &Constraint,
default: break; // Unknown constraint letter
case 'S': // ESI
if (VT == MVT::i32)
return make_vector<unsigned>(X86::ESI,0);
return make_vector<unsigned>(X86::ESI,0);
break;
case 'D': // EDI
if (VT == MVT::i32)
return make_vector<unsigned>(X86::EDI,0);
return make_vector<unsigned>(X86::EDI,0);
break;
case 'c': // ECX
if (VT == MVT::i32)
return make_vector<unsigned>(X86::ECX, 0);
break;
case 'A': // EAX/EDX
if (VT == MVT::i32 || VT == MVT::i64)