[llvm] [SelectionDAG] Remove dead functions (NFC) (PR #221541)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/221541

SelectionDAG::getBitcastedSExtOrTrunc,
SelectionDAG::getBitcastedZExtOrTrunc: Added on August 11, 2023 in
commit d26a06728da84a7302875a99ea86e887f6bc425a without any callers.

Assisted-by: Antigravity


>From 20b2759a551554cafd9a4d5f10b491a7c94eed4a Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Sat, 29 Aug 2026 14:30:16 -0700
Subject: [PATCH] [SelectionDAG] Remove dead functions (NFC)

SelectionDAG::getBitcastedSExtOrTrunc,
SelectionDAG::getBitcastedZExtOrTrunc: Added on August 11, 2023 in
commit d26a06728da84a7302875a99ea86e887f6bc425a without any callers.

Assisted-by: Antigravity
---
 llvm/include/llvm/CodeGen/SelectionDAG.h      | 10 -------
 .../lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 30 -------------------
 2 files changed, 40 deletions(-)

diff --git a/llvm/include/llvm/CodeGen/SelectionDAG.h b/llvm/include/llvm/CodeGen/SelectionDAG.h
index 550599fb86cac..c1acf6aaf5b6f 100644
--- a/llvm/include/llvm/CodeGen/SelectionDAG.h
+++ b/llvm/include/llvm/CodeGen/SelectionDAG.h
@@ -1086,16 +1086,6 @@ class SelectionDAG {
   LLVM_ABI SDValue getBitcastedAnyExtOrTrunc(SDValue Op, const SDLoc &DL,
                                              EVT VT);
 
-  /// Convert Op, which must be of integer type, to the
-  /// integer type VT, by first bitcasting (from potential vector) to
-  /// corresponding scalar type then either sign-extending or truncating it.
-  LLVM_ABI SDValue getBitcastedSExtOrTrunc(SDValue Op, const SDLoc &DL, EVT VT);
-
-  /// Convert Op, which must be of integer type, to the
-  /// integer type VT, by first bitcasting (from potential vector) to
-  /// corresponding scalar type then either zero-extending or truncating it.
-  LLVM_ABI SDValue getBitcastedZExtOrTrunc(SDValue Op, const SDLoc &DL, EVT VT);
-
   /// Return the expression required to zero extend the Op
   /// value assuming it was the smaller SrcTy value.
   LLVM_ABI SDValue getZeroExtendInReg(SDValue Op, const SDLoc &DL, EVT VT);
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 1c5a162fdcc11..94686c2a65ff3 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1614,36 +1614,6 @@ SDValue SelectionDAG::getBitcastedAnyExtOrTrunc(SDValue Op, const SDLoc &DL,
   return getAnyExtOrTrunc(DestOp, DL, VT);
 }
 
-SDValue SelectionDAG::getBitcastedSExtOrTrunc(SDValue Op, const SDLoc &DL,
-                                               EVT VT) {
-  assert(!VT.isVector());
-  auto Type = Op.getValueType();
-  SDValue DestOp;
-  if (Type == VT)
-    return Op;
-  auto Size = Op.getValueSizeInBits();
-  DestOp = getBitcast(MVT::getIntegerVT(Size), Op);
-  if (DestOp.getValueType() == VT)
-    return DestOp;
-
-  return getSExtOrTrunc(DestOp, DL, VT);
-}
-
-SDValue SelectionDAG::getBitcastedZExtOrTrunc(SDValue Op, const SDLoc &DL,
-                                               EVT VT) {
-  assert(!VT.isVector());
-  auto Type = Op.getValueType();
-  SDValue DestOp;
-  if (Type == VT)
-    return Op;
-  auto Size = Op.getValueSizeInBits();
-  DestOp = getBitcast(MVT::getIntegerVT(Size), Op);
-  if (DestOp.getValueType() == VT)
-    return DestOp;
-
-  return getZExtOrTrunc(DestOp, DL, VT);
-}
-
 SDValue SelectionDAG::getBoolExtOrTrunc(SDValue Op, const SDLoc &SL, EVT VT,
                                         EVT OpVT) {
   if (VT.bitsLE(Op.getValueType()))