8543.patch has been applied in upstream so removing it here.

.SRCINFO

@@ -1,6 +1,6 @@
 pkgbase = mesa-git
 	pkgdesc = an open-source implementation of the OpenGL specification, git version
-	pkgver = 21.1.0_devel.135579.75c9adf0398
+	pkgver = 21.1.0_devel.135859.a1e9a5d6534
 	pkgrel = 1
 	url = https://www.mesa3d.org
 	arch = x86_64
@@ -60,15 +60,12 @@ pkgbase = mesa-git
 	conflicts = vulkan-swrast
 	source = mesa::git+https://gitlab.freedesktop.org/mesa/mesa.git
 	source = LICENSE
-	source = 8543.patch
 	source = 0001-clover-llvm13-use-FixedVectorType.patch
 	md5sums = SKIP
 	md5sums = 5c65a0fe315dd347e09b1f2826a1df5a
-	md5sums = febd615545826793ff84a016e59b516c
 	md5sums = 5f0620ce35da2d1f80dc1b3c03eafc32
 	sha512sums = SKIP
 	sha512sums = 25da77914dded10c1f432ebcbf29941124138824ceecaf1367b3deedafaecabc082d463abcfa3d15abff59f177491472b505bcb5ba0c4a51bb6b93b4721a23c2
-	sha512sums = 2e1b0773cee0511c5ca87a163fef5ce46e78d5a8ba99fa88eda73f5757ee00b103a072614c266fedd515d55bb5cb03c3f3b45f75869c6f0bde33c1f7f767984b
 	sha512sums = c3a567df69a263c6b87d9c7887464ed03b5a0bf008caf180c45cf50dca3f4710e0eda3e453a7a69b89720e333c33b9aa7da1b7f9c79d72bb76d847b567558d19
 
 pkgname = mesa-git

8543.patch

@@ -1,42 +0,0 @@
-From 67b36d1e81dcdce97daa6eab4a6a7e60c6d3949a Mon Sep 17 00:00:00 2001
-From: Vinson Lee <vlee@freedesktop.org>
-Date: Sat, 16 Jan 2021 22:55:41 -0800
-Subject: [PATCH] clover: Fix build with llvm-12.
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Fix build error after LLVM commit c495dfe0268b ("[clang][cli] NFC:
-Decrease the scope of ParseLangArgs parameters").
-
-../src/gallium/frontends/clover/llvm/invocation.cpp: In function ‘std::unique_ptr<clang::CompilerInstance> {anonymous}::create_compiler_instance(const clover::device&, const string&, const std::vector<std::__cxx11::basic_string<char> >&, std::string&)’:
-../src/gallium/frontends/clover/llvm/invocation.cpp:252:55: error: cannot convert ‘clang::PreprocessorOptions’ to ‘std::vector<std::__cxx11::basic_string<char> >&’
-  252 |                                 c->getPreprocessorOpts(),
-      |                                 ~~~~~~~~~~~~~~~~~~~~~~^~
-      |                                                       |
-      |                                                       clang::PreprocessorOptions
-
-Signed-off-by: Vinson Lee <vlee@freedesktop.org>
----
- src/gallium/frontends/clover/llvm/invocation.cpp | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/src/gallium/frontends/clover/llvm/invocation.cpp b/src/gallium/frontends/clover/llvm/invocation.cpp
-index be0f3976b92..bcbec21cd1c 100644
---- a/src/gallium/frontends/clover/llvm/invocation.cpp
-+++ b/src/gallium/frontends/clover/llvm/invocation.cpp
-@@ -249,7 +249,11 @@ namespace {
- 
-       c->getInvocation().setLangDefaults(c->getLangOpts(),
-                                 compat::ik_opencl, ::llvm::Triple(target.triple),
-+#if LLVM_VERSION_MAJOR >= 12
-+                                c->getPreprocessorOpts().Includes,
-+#else
-                                 c->getPreprocessorOpts(),
-+#endif
-                                 get_language_version(opts, device_clc_version));
- 
-       c->createDiagnostics(new clang::TextDiagnosticPrinter(
--- 
-GitLab
-

PKGBUILD

@@ -12,7 +12,7 @@
 
 pkgname=mesa-git
 pkgdesc="an open-source implementation of the OpenGL specification, git version"
-pkgver=21.1.0_devel.135662.b17ec53c814
+pkgver=21.1.0_devel.135967.b33792b794f
 pkgrel=1
 arch=('x86_64')
 makedepends=('git' 'python-mako' 'xorgproto'
@@ -27,15 +27,12 @@ url="https://www.mesa3d.org"
 license=('custom')
 source=('mesa::git+https://gitlab.freedesktop.org/mesa/mesa.git'
         'LICENSE'
-        '8543.patch'
         '0001-clover-llvm13-use-FixedVectorType.patch')
 md5sums=('SKIP'
          '5c65a0fe315dd347e09b1f2826a1df5a'
-         'febd615545826793ff84a016e59b516c'
          '5f0620ce35da2d1f80dc1b3c03eafc32')
 sha512sums=('SKIP'
             '25da77914dded10c1f432ebcbf29941124138824ceecaf1367b3deedafaecabc082d463abcfa3d15abff59f177491472b505bcb5ba0c4a51bb6b93b4721a23c2'
-            '2e1b0773cee0511c5ca87a163fef5ce46e78d5a8ba99fa88eda73f5757ee00b103a072614c266fedd515d55bb5cb03c3f3b45f75869c6f0bde33c1f7f767984b'
             'c3a567df69a263c6b87d9c7887464ed03b5a0bf008caf180c45cf50dca3f4710e0eda3e453a7a69b89720e333c33b9aa7da1b7f9c79d72bb76d847b567558d19')
 
 # NINJAFLAGS is an env var used to pass commandline options to ninja
@@ -102,7 +99,6 @@ prepare() {
         rm -rf _build
     fi
     cd mesa
-    patch --forward --strip=1 --input="${srcdir}/8543.patch"
     patch --forward --strip=1 --input="${srcdir}/0001-clover-llvm13-use-FixedVectorType.patch"
 }