Add meeting minutes for 2026-01-29 (#380)

Author: bogner

meetings/2026-01-29.md

@@ -0,0 +1,14 @@
+---
+title: 2026-01-29 - HLSL Working Group Minutes
+---
+
+* Discussion topics
+  * @farzonl brought up the SPIR-V assertions for vectors that need to be
+    broken up in [llvm-project#177837]. @s-perron pointed out that this is a
+    case that isn't implemented yet and should be relatively self-contained to
+    fix.
+  * We discussed some issues around dead constants and cbuffer padding that
+    trip up spirv-cross. These are both known issues that are on the radar but
+    will take some engineering effort to fix.
+
+llvm-project#177837: https://github.com/llvm/llvm-project/issues/177838