Range checking for 16-bit immediates in ARM assembly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135071 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index c72b206..0ce4b4c 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -386,6 +386,14 @@
int64_t Value = CE->getValue();
return Value >= 0 && Value < 256;
}
+ bool isImm0_65535() const {
+ if (Kind != Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ if (!CE) return false;
+ int64_t Value = CE->getValue();
+ return Value >= 0 && Value < 65536;
+ }
bool isT2SOImm() const {
if (Kind != Immediate)
return false;
@@ -577,6 +585,11 @@
addExpr(Inst, getImm());
}
+ void addImm0_65535Operands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ addExpr(Inst, getImm());
+ }
+
void addT2SOImmOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
addExpr(Inst, getImm());