diff --git a/lib/Target/AArch64/AArch64InstrInfo.cpp b/lib/Target/AArch64/AArch64InstrInfo.cpp
index 7b934632440..cf3a2c3707d 100644
--- a/lib/Target/AArch64/AArch64InstrInfo.cpp
+++ b/lib/Target/AArch64/AArch64InstrInfo.cpp
@@ -618,11 +618,11 @@ void llvm::emitRegUpdate(MachineBasicBlock &MBB,
                          int64_t NumBytes, MachineInstr::MIFlag MIFlags) {
   if (NumBytes == 0 && DstReg == SrcReg)
     return;
-  else if (abs(NumBytes) & ~0xffffff) {
+  else if (abs64(NumBytes) & ~0xffffff) {
     // Generically, we have to materialize the offset into a temporary register
     // and subtract it. There are a couple of ways this could be done, for now
     // we'll use a movz/movk or movn/movk sequence.
-    uint64_t Bits = static_cast<uint64_t>(abs(NumBytes));
+    uint64_t Bits = static_cast<uint64_t>(abs64(NumBytes));
     BuildMI(MBB, MBBI, dl, TII.get(AArch64::MOVZxii), ScratchReg)
       .addImm(0xffff & Bits).addImm(0)
       .setMIFlags(MIFlags);
@@ -673,7 +673,7 @@ void llvm::emitRegUpdate(MachineBasicBlock &MBB,
   } else {
     LowOp = AArch64::SUBxxi_lsl0_s;
     HighOp = AArch64::SUBxxi_lsl12_s;
-    NumBytes = abs(NumBytes);
+    NumBytes = abs64(NumBytes);
   }
 
   // If we're here, at the very least a move needs to be produced, which just
diff --git a/lib/Target/Hexagon/HexagonHardwareLoops.cpp b/lib/Target/Hexagon/HexagonHardwareLoops.cpp
index 62aed1353ca..a46b8d392a1 100644
--- a/lib/Target/Hexagon/HexagonHardwareLoops.cpp
+++ b/lib/Target/Hexagon/HexagonHardwareLoops.cpp
@@ -701,7 +701,7 @@ CountValue *HexagonHardwareLoops::computeCount(MachineLoop *Loop,
 
   // If the induction variable bump is not a power of 2, quit.
   // Othwerise we'd need a general integer division.
-  if (!isPowerOf2_64(abs(IVBump)))
+  if (!isPowerOf2_64(abs64(IVBump)))
     return 0;
 
   MachineBasicBlock *PH = Loop->getLoopPreheader();