Revert "Vulkan: Disable global merge for volk"

This reverts commit bab2b3de. Reason for revert: A fixed clang version has been rolled in, so this flag should no longer be necessary. Original change's description: > Vulkan: Disable global merge for volk > > This optimization pass breaks the build by exporting volk's internal > binding symbols from libGLESv2.so. Since the test binary also links volk, > this causes a SEGV as the wrong (uninitialized) function pointer is > called. > > This is an LLVM bug and will be fixed upstream: > https://reviews.llvm.org/D73235 > > Bug: angleproject:4351 > Change-Id: Iebe0eabd975f8109231df30eef8c9074af8190e9 > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023910 > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> > Commit-Queue: Michael Spang <spang@chromium.org> TBR=spang@chromium.org,syoussefi@chromium.org,jmadill@chromium.org Bug: angleproject:4351 Change-Id: Ie832d7d42fab7c8360f2d4d548f1708164c60d3f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2076138 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Michael Spang <spang@chromium.org>

Revert "Vulkan: Disable global merge for volk"
78da538a · Reid Kleckner · Commit Bot · 5dde4db5 · 78da538a
Commit 78da538a authored Feb 26, 2020 by Reid Kleckner Committed by Commit Bot Feb 27, 2020
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BUILD.gn src/third_party/volk/BUILD.gn +1 -16

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--- a/src/third_party/volk/BUILD.gn
+++ b/src/third_party/volk/BUILD.gn
@@ -6,26 +6,11 @@ config("volk_config") {
  include_dirs = [ "." ]
 }

-# TODO(anglebug.com/4351): Remove this after clang rolls.
-config("volk_internal_config") {
-  if (is_clang) {
-    cflags = [
-      "-Xclang",
-      "-mllvm",
-      "-Xclang",
-      "--enable-global-merge=false",
-    ]
-  }
-}
-
 source_set("volk") {
  sources = [
    "volk.c",
    "volk.h",
  ]
-  public_configs = [
-    ":volk_config",
-    ":volk_internal_config",
-  ]
+  public_configs = [ ":volk_config" ]
  public_deps = [ "../../../third_party/vulkan-headers/src:vulkan_headers" ]
 }