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Implement the arm 'L' asm modifier.

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Part of rdar://9119939

llvm-svn: 132024
This commit is contained in:
Eric Christopher 2011-05-24 23:27:13 +00:00
parent a6d7ccb170
commit 4f193f9555
2 changed files with 13 additions and 1 deletions
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6
lib/Target/ARM/ARMAsmPrinter.cpp
View File

@ -415,13 +415,17 @@ bool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
(((Reg % 2) == 1) ? "[0]" : "[1]");
return false;
}
// Fallthrough to unsupported.
return true;
case 'B': // Bitwise inverse of integer or symbol without a preceding #.
if (!MI->getOperand(OpNum).isImm())
return true;
O << ~(MI->getOperand(OpNum).getImm());
return false;
case 'L': // The low 16 bits of an immediate constant.
if (!MI->getOperand(OpNum).isImm())
return true;
O << (MI->getOperand(OpNum).getImm() & 0xffff);
return false;
case 'm': // The base register of a memory operand.
case 'M': // A register range suitable for LDM/STM.
case 'p': // The high single-precision register of a VFP double-precision

8
test/CodeGen/ARM/arm-modifier.ll
View File

@ -21,3 +21,11 @@ entry:
call void asm sideeffect ".word ${0:B} \0A\09", "i"(i32 0) nounwind, !srcloc !0
ret void
}
define void @f1() nounwind ssp {
entry:
; CHECK: f1
; CHECK: .word 65535
call void asm sideeffect ".word ${0:L} \0A\09", "i"(i32 -1) nounwind, !srcloc !0
ret void
}