Overhaul global inst deduplication and cpp/cuda backend. (#2654)

* Overhaul global inst deduplication and cpp/cuda backend.

* Update IR documentation.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/source/slang/slang-ir-util.cpp b/source/slang/slang-ir-util.cpp
index 1ea426715..253686aa5 100644
--- a/source/slang/slang-ir-util.cpp
+++ b/source/slang/slang-ir-util.cpp
@@ -549,6 +549,8 @@ struct GenericChildrenMigrationContextImpl
                 }
                 if (as<IRConstant>(inst))
                     return false;
+                if (getIROpInfo(inst->getOp()).isHoistable())
+                    return false;
                 return true;
             });
     }