Revert "[MLIR][Arith] Add ExpandOps to convertArithToLLVM (#117305)"

Failing bot:
  * https://lab.llvm.org/buildbot/#/builders/138/builds/729

Also, not all discussions have been resolved:
  * #117305 (comment)

This reverts commit 2c739df.

Author: banach-space

mlir/lib/Conversion/ArithToLLVM/ArithToLLVM.cpp

@@ -13,7 +13,6 @@
 #include "mlir/Conversion/LLVMCommon/ConversionTarget.h"
 #include "mlir/Conversion/LLVMCommon/VectorPattern.h"
 #include "mlir/Dialect/Arith/IR/Arith.h"
-#include "mlir/Dialect/Arith/Transforms/Passes.h"
 #include "mlir/Dialect/LLVMIR/LLVMAttrs.h"
 #include "mlir/Dialect/LLVMIR/LLVMDialect.h"
 #include "mlir/IR/TypeUtilities.h"
@@ -505,8 +504,7 @@ struct ArithToLLVMConversionPass
       options.overrideIndexBitwidth(indexBitwidth);
 
     LLVMTypeConverter converter(&getContext(), options);
-    arith::populateCeilFloorDivExpandOpsPatterns(patterns);
-    arith::populateArithToLLVMConversionPatterns(converter, patterns);
+    mlir::arith::populateArithToLLVMConversionPatterns(converter, patterns);
 
     if (failed(applyPartialConversion(getOperation(), target,
                                       std::move(patterns))))
@@ -532,7 +530,6 @@ struct ArithToLLVMDialectInterface : public ConvertToLLVMPatternInterface {
   void populateConvertToLLVMConversionPatterns(
       ConversionTarget &target, LLVMTypeConverter &typeConverter,
       RewritePatternSet &patterns) const final {
-    arith::populateCeilFloorDivExpandOpsPatterns(patterns);
     arith::populateArithToLLVMConversionPatterns(typeConverter, patterns);
   }
 };

mlir/test/Conversion/ArithToLLVM/arith-to-llvm.mlir

@@ -540,68 +540,6 @@ func.func @select(%arg0 : i1, %arg1 : i32, %arg2 : i32) -> i32 {
 
 // -----
 
-// CHECK-LABEL: @ceildivsi
-// CHECK-SAME: %[[ARG0:.*]]: i64) -> i64
-func.func @ceildivsi(%arg0 : i64) -> i64 {
-  // CHECK: %[[CST0:.*]] = llvm.mlir.constant(1 : i64) : i64
-  // CHECK: %[[CST1:.*]] = llvm.mlir.constant(0 : i64) : i64
-  // CHECK: %[[CST2:.*]] = llvm.mlir.constant(-1 : i64) : i64
-  // CHECK: %[[CMP0:.*]] = llvm.icmp "sgt" %[[ARG0]], %[[CST1]] : i64
-  // CHECK: %[[SEL0:.*]] = llvm.select %[[CMP0]], %[[CST2]], %[[CST0]] : i1, i64
-  // CHECK: %[[ADD0:.*]] = llvm.add %[[SEL0]], %[[ARG0]] : i64
-  // CHECK: %[[DIV0:.*]] = llvm.sdiv %[[ADD0]], %[[ARG0]] : i64
-  // CHECK: %[[ADD1:.*]] = llvm.add %[[DIV0]], %[[CST0]] : i64
-  // CHECK: %[[SUB0:.*]] = llvm.sub %[[CST1]], %[[ARG0]] : i64
-  // CHECK: %[[DIV1:.*]] = llvm.sdiv %[[SUB0]], %[[ARG0]] : i64
-  // CHECK: %[[SUB1:.*]] = llvm.sub %[[CST1]], %[[DIV1]] : i64
-  // CHECK: %[[CMP1:.*]] = llvm.icmp "slt" %[[ARG0]], %[[CST1]] : i64
-  // CHECK: %[[CMP2:.*]] = llvm.icmp "sgt" %[[ARG0]], %[[CST1]] : i64
-  // CHECK: %[[CMP3:.*]] = llvm.icmp "slt" %[[ARG0]], %[[CST1]] : i64
-  // CHECK: %[[CMP4:.*]] = llvm.icmp "sgt" %[[ARG0]], %[[CST1]] : i64
-  // CHECK: %[[AND0:.*]] = llvm.and %[[CMP1]], %[[CMP3]] : i1
-  // CHECK: %[[AND1:.*]] = llvm.and %[[CMP2]], %[[CMP4]] : i1
-  // CHECK: %[[OR:.*]] = llvm.or %[[AND0]], %[[AND1]] : i1
-  // CHECK: %[[SEL1:.*]] = llvm.select %[[OR]], %[[ADD1]], %[[SUB1]] : i1, i64
-  %0 = arith.ceildivsi %arg0, %arg0 : i64
-  return %0: i64
-}
-
-// CHECK-LABEL: @ceildivui
-// CHECK-SAME: %[[ARG0:.*]]: i32) -> i32
-func.func @ceildivui(%arg0 : i32) -> i32 {
-// CHECK: %[[CST0:.*]] = llvm.mlir.constant(0 : i32) : i32
-// CHECK: %[[CMP0:.*]] = llvm.icmp "eq" %[[ARG0]], %[[CST0]] : i32
-// CHECK: %[[CST1:.*]] = llvm.mlir.constant(1 : i32) : i32
-// CHECK: %[[SUB0:.*]] = llvm.sub %[[ARG0]], %[[CST1]] : i32
-// CHECK: %[[DIV0:.*]] = llvm.udiv %[[SUB0]], %[[ARG0]] : i32
-// CHECK: %[[ADD0:.*]] = llvm.add %[[DIV0]], %[[CST1]] : i32
-// CHECK: %[[SEL0:.*]] = llvm.select %[[CMP0]], %[[CST0]], %[[ADD0]] : i1, i32
-  %0 = arith.ceildivui %arg0, %arg0 : i32
-  return %0: i32
-}
-
-// -----
-
-// CHECK-LABEL: @floordivsi
-// CHECK-SAME: %[[ARG0:.*]]: i32, %[[ARG1:.*]]: i32) -> i32
-func.func @floordivsi(%arg0 : i32, %arg1 : i32) -> i32 {
-  // CHECK: %[[SDIV:.*]] = llvm.sdiv %[[ARG0]], %[[ARG1]] : i32
-  // CHECK: %[[MUL0:.*]] = llvm.mul %[[SDIV]], %[[ARG1]] : i32
-  // CHECK: %[[CMP0:.*]] = llvm.icmp "ne" %[[ARG0]], %[[MUL0]] : i32
-  // CHECK: %[[CST0:.*]] = llvm.mlir.constant(0 : i32) : i32
-  // CHECK: %[[CMP1:.*]] = llvm.icmp "slt" %[[ARG0]], %[[CST0]] : i32
-  // CHECK: %[[CMP2:.*]] = llvm.icmp "slt" %[[ARG1]], %[[CST0]] : i32
-  // CHECK: %[[CMP3:.*]] = llvm.icmp "ne" %[[CMP1]], %[[CMP2]] : i1
-  // CHECK: %[[AND:.*]] = llvm.and %[[CMP0]], %[[CMP3]] : i1
-  // CHECK: %[[CST1:.*]] = llvm.mlir.constant(-1 : i32) : i32
-  // CHECK: %[[ADD:.*]] = llvm.add %[[SDIV]], %[[CST1]] : i32
-  // CHECK: %[[SEL:.*]] = llvm.select %[[AND]], %[[ADD]], %[[SDIV]] : i1, i32
-  %0 = arith.floordivsi %arg0, %arg1 : i32
-  return %0 : i32
-}
-
-// -----
-
 // CHECK-LABEL: @minmaxi
 func.func @minmaxi(%arg0 : i32, %arg1 : i32) -> i32 {
   // CHECK: = llvm.intr.smin(%arg0, %arg1) : (i32, i32) -> i32