[AMD] NFC: Remove unused conversion functions (#5693)

Author: antiagainst

third_party/amd/lib/TritonAMDGPUToLLVM/ElementwiseOpToLLVM.cpp

@@ -853,127 +853,6 @@ static ConverterT Fp16_to_Fp8E4M3FNUZ(AMD::ISAFamily isaFamily) {
                                             : Fp16_to_Fp8E4M3FNUZ_SW;
 }
 
-// WARN: subnormal (0bs0000xxx) are not handled
-static SmallVector<Value> Fp8E4M3_to_Bf16(Location loc,
-                                          ConversionPatternRewriter &rewriter,
-                                          const SmallVector<Value> &v) {
-  auto fp8x4VecTy = vec_ty(i8_ty, 4);
-  Value a0 = undef(fp8x4VecTy);
-  a0 = insert_element(fp8x4VecTy, a0, int_val(8, 0), i32_val(0));
-  a0 = insert_element(fp8x4VecTy, a0, v[0], i32_val(1));
-  a0 = insert_element(fp8x4VecTy, a0, int_val(8, 0), i32_val(2));
-  a0 = insert_element(fp8x4VecTy, a0, v[1], i32_val(3));
-  a0 = bitcast(a0, i32_ty);
-
-  Value a1 = undef(fp8x4VecTy);
-  a1 = insert_element(fp8x4VecTy, a1, int_val(8, 0), i32_val(0));
-  a1 = insert_element(fp8x4VecTy, a1, v[2], i32_val(1));
-  a1 = insert_element(fp8x4VecTy, a1, int_val(8, 0), i32_val(2));
-  a1 = insert_element(fp8x4VecTy, a1, v[3], i32_val(3));
-  a1 = bitcast(a1, i32_ty);
-
-  Value b0 = and_(i32_ty, a0, i32_val(0x7fff7fff));
-  Value b1 = and_(i32_ty, a1, i32_val(0x7fff7fff));
-  b0 = lshr(i32_ty, b0, i32_val(4));
-  b1 = lshr(i32_ty, b1, i32_val(4));
-
-  b0 = add(i32_ty, b0, i32_val(0x3c003c00));
-  b1 = add(i32_ty, b1, i32_val(0x3c003c00));
-  Value sign0 = and_(i32_ty, a0, i32_val(0x80008000));
-  Value sign1 = and_(i32_ty, a1, i32_val(0x80008000));
-
-  auto bf16x2VecTy = vec_ty(bf16_ty, 2);
-  Value bf16x2Vec0 = or_(i32_ty, sign0, b0);
-  Value bf16x2Vec1 = or_(i32_ty, sign1, b1);
-  bf16x2Vec0 = bitcast(bf16x2Vec0, bf16x2VecTy);
-  bf16x2Vec1 = bitcast(bf16x2Vec1, bf16x2VecTy);
-
-  return {extract_element(bf16_ty, bf16x2Vec0, i32_val(0)),
-          extract_element(bf16_ty, bf16x2Vec0, i32_val(1)),
-          extract_element(bf16_ty, bf16x2Vec1, i32_val(0)),
-          extract_element(bf16_ty, bf16x2Vec1, i32_val(1))};
-}
-
-static SmallVector<Value> Bf16_to_Fp8E4M3(Location loc,
-                                          ConversionPatternRewriter &rewriter,
-                                          const SmallVector<Value> &v) {
-  auto bf16x2VecTy = vec_ty(bf16_ty, 2);
-  Value bf16x2Vec0 = undef(bf16x2VecTy);
-  Value bf16x2Vec1 = undef(bf16x2VecTy);
-  bf16x2Vec0 = insert_element(bf16x2VecTy, bf16x2Vec0, v[0], i32_val(0));
-  bf16x2Vec0 = insert_element(bf16x2VecTy, bf16x2Vec0, v[1], i32_val(1));
-  bf16x2Vec1 = insert_element(bf16x2VecTy, bf16x2Vec1, v[2], i32_val(0));
-  bf16x2Vec1 = insert_element(bf16x2VecTy, bf16x2Vec1, v[3], i32_val(1));
-  bf16x2Vec0 = bitcast(bf16x2Vec0, i32_ty);
-  bf16x2Vec1 = bitcast(bf16x2Vec1, i32_ty);
-
-  Value sign0 = and_(i32_ty, bf16x2Vec0, i32_val(0x80008000));
-  Value sign1 = and_(i32_ty, bf16x2Vec1, i32_val(0x80008000));
-  auto fp8x4VecTy = vec_ty(i8_ty, 4);
-  Value sign = undef(fp8x4VecTy);
-  sign0 = bitcast(sign0, fp8x4VecTy);
-  sign1 = bitcast(sign1, fp8x4VecTy);
-  sign = insert_element(fp8x4VecTy, sign,
-                        extract_element(i8_ty, sign0, i32_val(1)), i32_val(0));
-  sign = insert_element(fp8x4VecTy, sign,
-                        extract_element(i8_ty, sign0, i32_val(3)), i32_val(1));
-  sign = insert_element(fp8x4VecTy, sign,
-                        extract_element(i8_ty, sign1, i32_val(1)), i32_val(2));
-  sign = insert_element(fp8x4VecTy, sign,
-                        extract_element(i8_ty, sign1, i32_val(3)), i32_val(3));
-  sign = bitcast(sign, i32_ty);
-
-  Value nosign0 = and_(i32_ty, bf16x2Vec0, i32_val(0x7fff7fff));
-  Value nosign1 = and_(i32_ty, bf16x2Vec1, i32_val(0x7fff7fff));
-
-  Value nosign_0_0 = and_(i32_ty, nosign0, i32_val(0xffff0000));
-  nosign_0_0 = umax(i32_ty, nosign_0_0, i32_val(0x3c000000));
-  nosign_0_0 = umin(i32_ty, nosign_0_0, i32_val(0x43f00000));
-  Value nosign_0_1 = and_(i32_ty, nosign0, i32_val(0x0000ffff));
-  nosign_0_1 = umax(i32_ty, nosign_0_1, i32_val(0x3c00));
-  nosign_0_1 = umin(i32_ty, nosign_0_1, i32_val(0x43f0));
-  nosign0 = or_(i32_ty, nosign_0_0, nosign_0_1);
-
-  Value nosign_1_0 = and_(i32_ty, nosign1, i32_val(0xffff0000));
-  nosign_1_0 = umax(i32_ty, nosign_1_0, i32_val(0x3c000000));
-  nosign_1_0 = umin(i32_ty, nosign_1_0, i32_val(0x43f00000));
-  Value nosign_1_1 = and_(i32_ty, nosign1, i32_val(0x0000ffff));
-  nosign_1_1 = umax(i32_ty, nosign_1_1, i32_val(0x3c00));
-  nosign_1_1 = umin(i32_ty, nosign_1_1, i32_val(0x43f0));
-  nosign1 = or_(i32_ty, nosign_1_0, nosign_1_1);
-
-  nosign0 = add(i32_ty, nosign0, i32_val(0x80008));
-  nosign1 = add(i32_ty, nosign1, i32_val(0x80008));
-  nosign0 = sub(i32_ty, nosign0, i32_val(0x3c003c00));
-  nosign1 = sub(i32_ty, nosign1, i32_val(0x3c003c00));
-  nosign0 = lshr(i32_ty, nosign0, i32_val(4));
-  nosign1 = lshr(i32_ty, nosign1, i32_val(4));
-
-  nosign0 = bitcast(nosign0, fp8x4VecTy);
-  nosign1 = bitcast(nosign1, fp8x4VecTy);
-  Value nosign = undef(fp8x4VecTy);
-  nosign =
-      insert_element(fp8x4VecTy, nosign,
-                     extract_element(i8_ty, nosign0, i32_val(0)), i32_val(0));
-  nosign =
-      insert_element(fp8x4VecTy, nosign,
-                     extract_element(i8_ty, nosign0, i32_val(2)), i32_val(1));
-  nosign =
-      insert_element(fp8x4VecTy, nosign,
-                     extract_element(i8_ty, nosign1, i32_val(0)), i32_val(2));
-  nosign =
-      insert_element(fp8x4VecTy, nosign,
-                     extract_element(i8_ty, nosign1, i32_val(2)), i32_val(3));
-  nosign = bitcast(nosign, i32_ty);
-
-  Value fp8x4Vec = or_(i32_ty, nosign, sign);
-  fp8x4Vec = bitcast(fp8x4Vec, fp8x4VecTy);
-  return {extract_element(i8_ty, fp8x4Vec, i32_val(0)),
-          extract_element(i8_ty, fp8x4Vec, i32_val(1)),
-          extract_element(i8_ty, fp8x4Vec, i32_val(2)),
-          extract_element(i8_ty, fp8x4Vec, i32_val(3))};
-}
-
 template <typename SourceOp, typename DestOp>
 struct ElementwiseOpConversion
     : public ElementwiseOpConversionBase<