Roll DirectX Shader Compiler from fb1f3036b185 to 7640ffa3d5db (1 revision)

https://chromium.googlesource.com/external/github.com/microsoft/DirectXShaderCompiler.git/+log/fb1f3036b185..7640ffa3d5db

2023-09-28 kleber.garcia@unity3d.com Fixing documentation code tag for BuildingAndTestingDXC.rst  (#5778)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/directx-shader-compiler-dawn
Please CC amaiorano@google.com,webgpu-developers@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in DirectX Shader Compiler: https://github.com/microsoft/DirectXShaderCompiler/issues/new/choose
To file a bug in Dawn: https://bugs.chromium.org/p/dawn/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Bug: None
Tbr: amaiorano@google.com
Change-Id: I7c946ba28d296fa978e67bacb55598e7c8f7d1b3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/154161
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 1532c0d..c0a78b4 100644
--- a/DEPS
+++ b/DEPS
@@ -183,7 +183,7 @@
   },
 
   'third_party/dxc': {
-    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@fb1f3036b185e2d8f668f4dd753d50873081c094',
+    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@7640ffa3d5dbd36d668c63b04106bd12bd7fe6cd',
   },
 
   'third_party/dxheaders': {
diff --git a/third_party/dxc b/third_party/dxc
index fb1f303..7640ffa 160000
--- a/third_party/dxc
+++ b/third_party/dxc
@@ -1 +1 @@
-Subproject commit fb1f3036b185e2d8f668f4dd753d50873081c094
+Subproject commit 7640ffa3d5dbd36d668c63b04106bd12bd7fe6cd