Integrate GitHub PR: openxla/stablehlo#1496 to MHLO.

PiperOrigin-RevId: 543457854

xla/mlir_hlo/tests/Dialect/mhlo/ops.mlir

@@ -5678,7 +5678,7 @@ func.func @add_dependency(%data: tensor<4x16xf32>) -> tensor<4x16xf32> {
 
 // -----
 
-// CHECK: func @uniform_quantize
+// CHECK-LABEL: func @uniform_quantize
 func.func @uniform_quantize(%arg: tensor<16x16xf32>) -> tensor<16x16x!quant.uniform<ui8:f32, 34.0:16>> {
   %0 = mhlo.uniform_quantize %arg : (tensor<16x16xf32>) -> tensor<16x16x!quant.uniform<ui8:f32, 34.0:16>>
   func.return %0 : tensor<16x16x!quant.uniform<ui8:f32, 34.0:16>>
@@ -5694,7 +5694,7 @@ func.func @uniform_requantize(%arg: tensor<16x16x!quant.uniform<i8:f32, 5.0:20>>
 
 // -----
 
-// CHECK: func @uniform_dequantize
+// CHECK-LABEL: func @uniform_dequantize
 func.func @uniform_dequantize(%arg: tensor<16x16x!quant.uniform<i8:f32, 34.0:16>>) -> tensor<16x16xf32> {
   %0 = mhlo.uniform_dequantize %arg : (tensor<16x16x!quant.uniform<i8:f32, 34.0:16>>) -> tensor<16x16xf32>
   func.return %0 : tensor<16x16xf32>
@@ -5710,14 +5710,6 @@ func.func @uniform_dequantize_unranked(%arg: tensor<*x!quant.uniform<i8:f32, 34.
 
 // -----
 
-func.func @uniform_dequantize_not_quantize(%arg: tensor<16x16xf32>) -> tensor<16x16xf32> {
-  // expected-error@+1 {{operand #0 must be tensor of 4/8/16/32-bit uniform quantized signed integer or 4/8/16/32-bit uniform quantized unsigned integer values, but got 'tensor<16x16xf32>'}}
-  %0 = mhlo.uniform_dequantize %arg : (tensor<16x16xf32>) -> tensor<16x16xf32>
-  func.return %0 : tensor<16x16xf32>
-}
-
-// -----
-
 // CHECK-LABEL: func @quantized_constants
 func.func @quantized_constants() -> (tensor<2x!quant.uniform<i8:f32, 2.0:15>>, tensor<2x!quant.uniform<ui8:f32, 34.0:16>>, tensor<2x!quant.uniform<i8:f32, 2.0:15>>) {
   %0 = mhlo.constant() {value = dense<[1, 2]> : tensor<2xi8>} : () -> tensor<2x!quant.uniform<i8:f32, 2.000000e+00:15>>