Share qparams for aten.concat.default in composable (V2) quantizer (pytorch#20999)

Differential Revision: D112236028

Pull Request resolved: pytorch#20999

Author: Ninja91

backends/arm/quantizer/arm_quantizer_utils.py

@@ -461,6 +461,7 @@ class SharedQspecQuantizer(Quantizer, QuantizerReporterUser):
         torch.ops.aten.pixel_shuffle.default,
         torch.ops.aten.pixel_unshuffle.default,
         torch.ops.aten.cat.default,
+        torch.ops.aten.concat.default,
         torch.ops.aten.concatenate.default,
         torch.ops.aten.stack.default,
         torch.ops.aten.dropout.default,

backends/cortex_m/test/misc/test_portable_int8.py

@@ -365,6 +365,12 @@ def _quantize_and_export(
         (torch.randn(2, 3, 4, 5), torch.randn(2, 3, 4, 5)),
         None,
     ),
+    "concat": OpCase(
+        torch.ops.aten.concat.default,
+        _build_module(lambda x, y: torch.ops.aten.concat.default([x, y], 1)),
+        (torch.randn(2, 3, 4, 5), torch.randn(2, 3, 4, 5)),
+        None,
+    ),
     "concatenate": OpCase(
         torch.ops.aten.concatenate.default,
         _build_module(lambda x, y: torch.ops.aten.concatenate.default([x, y], 1)),