break;
case 'I': // signed 16 bit immediate
case 'J': // integer zero
+ case 'K': // unsigned 16 bit immediate
if (isa<ConstantInt>(CallOperandVal))
weight = CW_Constant;
break;
}
}
return;
+ case 'K': // unsigned 16 bit immediate
+ if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) {
+ EVT Type = Op.getValueType();
+ uint64_t Val = (uint64_t)C->getZExtValue();
+ if (isUInt<16>(Val)) {
+ Result = DAG.getTargetConstant(Val, Type);
+ break;
+ }
+ }
+ return;
}
if (Result.getNode()) {
--- /dev/null
+;
+;This is a negative test. The constant value given for the constraint (K)
+;is greater than 16 bits (0x00100000).
+;
+; RUN: not llc -march=mipsel < %s 2> %t
+; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
+
+define i32 @main() nounwind {
+entry:
+
+;CHECK-ERRORS: error: invalid operand for inline asm constraint 'K'
+
+ tail call i32 asm "addu $0,$1,$2", "=r,r,K"(i32 1024, i32 1048576) nounwind
+ ret i32 0
+}
+
; CHECK: #NO_APP
tail call i32 asm sideeffect "addi $0,$1,$2\0A\09 ", "=r,r,J"(i32 7, i16 0) nounwind
+; Now K with 64
+; CHECK: #APP
+; CHECK: addu ${{[0-9]+}},${{[0-9]+}},64
+; CHECK: #NO_APP
+ tail call i16 asm sideeffect "addu $0,$1,$2\0A\09 ", "=r,r,K"(i16 7, i16 64) nounwind
+
ret i32 0
}