[fast-isel] Add support for UDIV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149712 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp
index e30cee3..433d20b 100644
--- a/lib/Target/ARM/ARMFastISel.cpp
+++ b/lib/Target/ARM/ARMFastISel.cpp
@@ -163,7 +163,7 @@
bool SelectBinaryOp(const Instruction *I, unsigned ISDOpcode);
bool SelectIToFP(const Instruction *I, bool isZExt);
bool SelectFPToI(const Instruction *I, bool isZExt);
- bool SelectSDiv(const Instruction *I);
+ bool SelectDiv(const Instruction *I, bool isSigned);
bool SelectSRem(const Instruction *I);
bool SelectCall(const Instruction *I, const char *IntrMemName);
bool SelectIntrinsicCall(const IntrinsicInst &I);
@@ -1671,7 +1671,7 @@
return true;
}
-bool ARMFastISel::SelectSDiv(const Instruction *I) {
+bool ARMFastISel::SelectDiv(const Instruction *I, bool isSigned) {
MVT VT;
Type *Ty = I->getType();
if (!isTypeLegal(Ty, VT))
@@ -1685,15 +1685,15 @@
// Otherwise emit a libcall.
RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
if (VT == MVT::i8)
- LC = RTLIB::SDIV_I8;
+ LC = isSigned ? RTLIB::SDIV_I8 : RTLIB::UDIV_I8;
else if (VT == MVT::i16)
- LC = RTLIB::SDIV_I16;
+ LC = isSigned ? RTLIB::SDIV_I16 : RTLIB::UDIV_I16;
else if (VT == MVT::i32)
- LC = RTLIB::SDIV_I32;
+ LC = isSigned ? RTLIB::SDIV_I32 : RTLIB::UDIV_I32;
else if (VT == MVT::i64)
- LC = RTLIB::SDIV_I64;
+ LC = isSigned ? RTLIB::SDIV_I64 : RTLIB::UDIV_I64;
else if (VT == MVT::i128)
- LC = RTLIB::SDIV_I128;
+ LC = isSigned ? RTLIB::SDIV_I128 : RTLIB::UDIV_I128;
assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!");
return ARMEmitLibcall(I, LC);
@@ -2463,7 +2463,9 @@
case Instruction::FMul:
return SelectBinaryOp(I, ISD::FMUL);
case Instruction::SDiv:
- return SelectSDiv(I);
+ return SelectDiv(I, /*isSigned*/ true);
+ case Instruction::UDiv:
+ return SelectDiv(I, /*isSigned*/ false);
case Instruction::SRem:
return SelectSRem(I);
case Instruction::Call: