[inductor] Decompose boolean min/max into all/any (#110311)

Pull Request resolved: #110311
Approved by: https://github.com/lezcano
ghstack dependencies: #110310

torch/_inductor/decomposition.py

@@ -309,6 +309,20 @@ def fmax(self, other):
     return torch.where(torch.isnan(other) | (other < self), self, other)
 
 
+@register_decomposition(aten.amax)
+def amax(self, dim=None, keepdim=False):
+    if self.dtype == torch.bool:
+        return torch.any(self, dim=dim, keepdim=keepdim)
+    return NotImplemented
+
+
+@register_decomposition(aten.amin)
+def amin(self, dim=None, keepdim=False):
+    if self.dtype == torch.bool:
+        return torch.all(self, dim=dim, keepdim=keepdim)
+    return NotImplemented
+
+
 @register_decomposition([aten.narrow_copy])
 def narrow_copy(self, dim, start, length):
     return torch.narrow(self, dim, start, length).clone()