Integrate LLVM at 977355be38d10c62c3d5498a64618ec926348252

Bump stablehlo to openxla/stablehlo@e60f552

After LLVM c6964b1b4dcd, i1 DenseElementsAttr no longer uses
bit-packed special handling. Also, relax compile.py IR-printing
check to match any IR Dump After ... banner, since after the
LLVM update the first reported pass changed.

Signed-off-by: Annop Wongwathanarat <annop.wongwathanarat@arm.com>

Author: annop-w

externals/llvm-project

@@ -34,5 +34,5 @@ def test_enable_ir_printing():
     )
 
 
-# CHECK: // -----// IR Dump After Inliner (inline)
+# CHECK: // -----// IR Dump After {{.*}} //----- //
 # CHECK-NEXT: module attributes {torch.debug_module_name = "TinyModel"} {

externals/stablehlo

@@ -1135,11 +1135,7 @@ def get_operator_function(
         np.asarray(tp.float_data, dtype=np.float32).reshape(tp.dims), signless=False
     ),
     onnx.TensorProto.DataType.BOOL: lambda tp: DenseElementsAttr.get(
-        np.packbits(
-            np.asarray(tp.int32_data, dtype=np.bool_).reshape(tp.dims),
-            axis=None,
-            bitorder="little",
-        ),
+        np.asarray(tp.int32_data, dtype=np.bool_).reshape(tp.dims),
         shape=tp.dims,
         type=IntegerType.get_signless(1),
     ),