Roll DirectX Shader Compiler from 557759b4b151 to 64cdb9cfc07c (2 revisions)

https://chromium.googlesource.com/external/github.com/microsoft/DirectXShaderCompiler.git/+log/557759b4b151..64cdb9cfc07c

2024-02-14 jeffno@microsoft.com PIX: Deduplicate globals when referenced in multiple library fns (#6305)
2024-02-14 stevenperron@google.com [SPIRV] Handle bit fields with initializer lists (#6301)

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 bajones@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://issues.skia.org/issues/new?component=1389291&template=1850622

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

Bug: None
Tbr: bajones@google.com
Change-Id: Ibaaf0976f92db2e9c5fba53bb42cbc3d1b03890b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/174965
Kokoro: Kokoro <noreply+kokoro@google.com>
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 66d1abd..e194e25 100644
--- a/DEPS
+++ b/DEPS
@@ -197,7 +197,7 @@
   },
 
   'third_party/dxc': {
-    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@557759b4b151822d5351bfa5ae016b2ee5a0ccb7',
+    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@64cdb9cfc07ce37a8156c219c04f2b00f5beb547',
   },
 
   'third_party/dxheaders': {
diff --git a/third_party/dxc b/third_party/dxc
index 557759b..64cdb9c 160000
--- a/third_party/dxc
+++ b/third_party/dxc
@@ -1 +1 @@
-Subproject commit 557759b4b151822d5351bfa5ae016b2ee5a0ccb7
+Subproject commit 64cdb9cfc07ce37a8156c219c04f2b00f5beb547