From 69450a2be7575aa4f984b9ae2824da0e5634c9f0 Mon Sep 17 00:00:00 2001
From: jsmall-nvidia <jsmall@nvidia.com>
Date: Wed, 5 Jul 2023 13:23:14 -0400
Subject: Initial sizeof/alignof implementation. (#2954)

* Initial sizeof implementation.

* Small macro improvement.

* Fix some typos.

* Refactor NaturalSize.
Add more sizeof tests.

* Use _makeParseExpr to add sizeof support.

* Add size-of.slang diagnostic result.

* Fix typo in folding with macro change.

* Add a sizeof test of This.

* Some more NaturalSize coverage.

* Simple alignof support.

* Testing for alignof.

* Added 8 bit enum to check enums values are correctly sized.

* Add alignof to completion.

* Lower sizeof/alignof to IR.
sizeof/alignof IR pass.
Tests for simple generic scenarios.

* Make append handle invalid properly.
Improve comments.

---------

Co-authored-by: Theresa Foley <10618364+tangent-vector@users.noreply.github.com>
---
 source/slang/slang-emit.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'source/slang/slang-emit.cpp')

diff --git a/source/slang/slang-emit.cpp b/source/slang/slang-emit.cpp
index 827c69e50..4c050ffcc 100644
--- a/source/slang/slang-emit.cpp
+++ b/source/slang/slang-emit.cpp
@@ -36,6 +36,7 @@
 #include "slang-ir-lower-optional-type.h"
 #include "slang-ir-lower-bit-cast.h"
 #include "slang-ir-lower-l-value-cast.h"
+#include "slang-ir-lower-size-of.h"
 #include "slang-ir-lower-reinterpret.h"
 #include "slang-ir-loop-unroll.h"
 #include "slang-ir-metadata.h"
@@ -867,6 +868,10 @@ Result linkAndOptimizeIR(
         legalizeUniformBufferLoad(irModule);
     }
 
+    // Lower sizeof/alignof
+
+    lowerSizeOfLike(targetRequest, irModule, sink);
+
     // Lower all the LValue implict casts (used for out/inout/ref scenarios)
     lowerLValueCast(targetRequest, irModule);
 
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