[mlir][x86vector] Fix integration tests lowering (#124934)

Fixes MLIR lowering passes in x86vector integration tests.

The tests are refactored with lowering pass bundle which ensures that all
dialect are lowered into LLVM dialect.
This simplifies the test pipelines and addresses missing arith lowering.

mlir/test/Integration/Dialect/Vector/CPU/X86Vector/dot.mlir

@@ -1,4 +1,4 @@
-// RUN: mlir-opt %s -convert-vector-to-scf -convert-scf-to-cf -convert-vector-to-llvm="enable-x86vector" -convert-func-to-llvm -reconcile-unrealized-casts | \
+// RUN: mlir-opt %s -convert-vector-to-llvm="enable-x86vector" -test-lower-to-llvm | \
 // RUN: mlir-translate --mlir-to-llvmir | \
 // RUN: %lli --entry-function=entry --mattr="avx" --dlopen=%mlir_c_runner_utils | \
 // RUN: FileCheck %s

mlir/test/Integration/Dialect/Vector/CPU/X86Vector/inline-asm-vector-avx512.mlir

@@ -1,4 +1,4 @@
-// RUN: mlir-opt %s -convert-linalg-to-loops -convert-vector-to-scf='full-unroll=true' -lower-affine -convert-scf-to-cf -convert-vector-to-llvm -finalize-memref-to-llvm  -convert-func-to-llvm='use-bare-ptr-memref-call-conv=1' -convert-arith-to-llvm -reconcile-unrealized-casts |\
+// RUN: mlir-opt %s -convert-linalg-to-loops -convert-vector-to-scf='full-unroll=true' -test-lower-to-llvm |\
 // RUN: mlir-translate --mlir-to-llvmir |\
 // RUN: %lli --entry-function=entry --mattr="avx512f" --dlopen=%mlir_c_runner_utils |\
 // RUN: FileCheck %s
@@ -37,4 +37,3 @@ module {
     llvm.return %i0 : i32
   }
 }
-

mlir/test/Integration/Dialect/Vector/CPU/X86Vector/mask-compress.mlir

@@ -1,4 +1,4 @@
-// RUN: mlir-opt %s -convert-vector-to-scf -convert-scf-to-cf -convert-vector-to-llvm="enable-x86vector" -convert-func-to-llvm -reconcile-unrealized-casts  | \
+// RUN: mlir-opt %s -convert-vector-to-llvm="enable-x86vector" -test-lower-to-llvm  | \
 // RUN: mlir-translate  --mlir-to-llvmir | \
 // RUN: %lli --entry-function=entry --mattr="avx512bw" --dlopen=%mlir_c_runner_utils | \
 // RUN: FileCheck %s

mlir/test/Integration/Dialect/Vector/CPU/X86Vector/rsqrt.mlir

@@ -1,4 +1,4 @@
-// RUN: mlir-opt %s -convert-vector-to-scf -convert-scf-to-cf -convert-vector-to-llvm="enable-x86vector" -convert-func-to-llvm -reconcile-unrealized-casts  | \
+// RUN: mlir-opt %s -convert-vector-to-llvm="enable-x86vector" -test-lower-to-llvm | \
 // RUN: mlir-translate --mlir-to-llvmir | \
 // RUN: %lli --entry-function=entry --mattr="avx" --dlopen=%mlir_c_runner_utils | \
 // RUN: FileCheck %s

mlir/test/Integration/Dialect/Vector/CPU/X86Vector/sparse-dot-product.mlir

@@ -1,4 +1,4 @@
-// RUN: mlir-opt %s -convert-scf-to-cf -convert-vector-to-llvm="enable-x86vector" -finalize-memref-to-llvm -convert-func-to-llvm -reconcile-unrealized-casts  | \
+// RUN: mlir-opt %s -convert-vector-to-llvm="enable-x86vector" -test-lower-to-llvm | \
 // RUN: mlir-translate  --mlir-to-llvmir | \
 // RUN: %lli --entry-function=entry --mattr="avx512bw,avx512vp2intersect" --dlopen=%mlir_c_runner_utils | \
 // RUN: FileCheck %s

mlir/test/Integration/Dialect/Vector/CPU/X86Vector/vp2intersect-i32.mlir

@@ -1,4 +1,4 @@
-// RUN: mlir-opt %s -convert-vector-to-scf -convert-scf-to-cf -convert-vector-to-llvm="enable-x86vector" -convert-func-to-llvm -reconcile-unrealized-casts  | \
+// RUN: mlir-opt %s -convert-vector-to-llvm="enable-x86vector" -test-lower-to-llvm | \
 // RUN: mlir-translate  --mlir-to-llvmir | \
 // RUN: %lli --entry-function=entry --mattr="avx512bw,avx512vp2intersect" --dlopen=%mlir_c_runner_utils | \
 // RUN: FileCheck %s