1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/Utils.cpp b/llvm/lib/CodeGen/GlobalISel/Utils.cpp
index 8c1e41e..625d556 100644
--- a/llvm/lib/CodeGen/GlobalISel/Utils.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/Utils.cpp
@@ -276,6 +276,21 @@ void llvm::reportGISelFailure(MachineFunction &MF, const TargetPassConfig &TPC,
   reportGISelFailure(MF, TPC, MORE, R);
 }
 
+unsigned llvm::getInverseGMinMaxOpcode(unsigned MinMaxOpc) {
+  switch (MinMaxOpc) {
+  case TargetOpcode::G_SMIN:
+    return TargetOpcode::G_SMAX;
+  case TargetOpcode::G_SMAX:
+    return TargetOpcode::G_SMIN;
+  case TargetOpcode::G_UMIN:
+    return TargetOpcode::G_UMAX;
+  case TargetOpcode::G_UMAX:
+    return TargetOpcode::G_UMIN;
+  default:
+    llvm_unreachable("unrecognized opcode");
+  }
+}
+
 std::optional<APInt> llvm::getIConstantVRegVal(Register VReg,
                                                const MachineRegisterInfo &MRI) {
   std::optional<ValueAndVReg> ValAndVReg = getIConstantVRegValWithLookThrough(
@@ -1517,6 +1532,18 @@ llvm::isConstantOrConstantSplatVector(MachineInstr &MI,
   return APInt(ScalarSize, *MaybeCst, true);
 }
 
+std::optional<APFloat>
+llvm::isConstantOrConstantSplatVectorFP(MachineInstr &MI,
+                                        const MachineRegisterInfo &MRI) {
+  Register Def = MI.getOperand(0).getReg();
+  if (auto FpConst = getFConstantVRegValWithLookThrough(Def, MRI))
+    return FpConst->Value;
+  auto MaybeCstFP = getFConstantSplat(Def, MRI, /*allowUndef=*/false);
+  if (!MaybeCstFP)
+    return std::nullopt;
+  return MaybeCstFP->Value;
+}
+
 bool llvm::isNullOrNullSplat(const MachineInstr &MI,
                              const MachineRegisterInfo &MRI, bool AllowUndefs) {
   switch (MI.getOpcode()) {