This patch restores LLVM targets needed for OpenCL, *reverting* this
upstream commit:

  From 80817b6e344258ac9b955f824ebf9019a0fc1610 Mon Sep 17 00:00:00 2001
  From: Jesse Natalie <jenatali@microsoft.com>
  Date: Wed, 18 Nov 2020 18:30:30 -0800
  Subject: [PATCH] meson: Adjust Clover's required LLVM modules

diff --git a/meson.build b/meson.build
index 6d1607c35a3..f828eb80faa 100644
--- b/meson.build
+++ a/meson.build
@@ -1479,10 +1479,9 @@
 endif
 if with_gallium_opencl
   llvm_modules += [
-    'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
-    'lto', 'option', 'objcarcopts', 'profiledata'
+    'all-targets', 'linker', 'coverage', 'instrumentation', 'ipo', 'irreader',
+    'lto', 'option', 'objcarcopts', 'profiledata',
   ]
-  llvm_optional_modules += ['frontendopenmp']
 endif
 if with_microsoft_clc
   llvm_modules += ['target', 'linker', 'irreader', 'option', 'libdriver']
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<tr><td><span title='2021-06-08 23:28:04 +0200'>2021-06-08</span></td><td><a href='/guix/commit/tests/lint.scm?id=93d85deae6bce16bc21fb42ad6a68a1bcbb72527'>lint: Check for trailing whitespace in description.</a><span class='msg-avail'>...</span></td><td>Xinglu Chen</td></tr>
<tr><td><span title='2021-06-08 23:28:04 +0200'>2021-06-08</span></td><td><a href='/guix/commit/tests/lint.scm?id=04afb76958184b2a6dafa2815a2a410424a05d84'>lint: Check for trailing whitespace in synopsis.</a><span class='msg-avail'>...</span></td><td>Xinglu Chen</td></tr>
<tr><td><span title='2021-06-06 18:49:12 +0200'>2021-06-06</span></td><td><a href='/guix/commit/tests/lint.scm?id=82b0e27de109b38ed44f67434a96460c4a7f9217'>lint: tests-true: Check if tests are enabled when cross-compiling.</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2021-05-22 23:13:11 +0200'>2021-05-22</span></td><td><a href='/guix/commit/tests/lint.scm?id=bc4d81d267830a3b1ccb63198f4100cc836e4e4e'>lint: archival: Lookup content in Disarchive database.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-04-16 23:25:23 +0200'>2021-04-16</span></td><td><a href='/guix/commit/tests/lint.scm?id=c68070e4eefd25118b368bd7af872f65ab739fc7'>lint: Warn about underscores in package names.</a><span class='msg-avail'>...</span></td><td>Xinglu Chen</td></tr>
<tr><td><span title='2021-03-13 16:03:22 +0100'>2021-03-13</span></td><td><a href='/guix/commit/tests/lint.scm?id=5cbfddcb59baccf6a3aebd835a01126cca2f1ea5'>tests: Remove obsolete comment.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-03-06 11:41:48 +0100'>2021-03-06</span></td><td><a href='/guix/commit/tests/lint.scm?id=c05ceaf2b650d090cf39a048193505cb4e6bd257'>tests: do not hard code HTTP ports</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2020-12-07 12:48:26 +0100'>2020-12-07</span></td><td><a href='/guix/commit/tests/lint.scm?id=d8ae7852057d5c1818c9c8bb77e8c41407a0d985'>tests: lint: Add origin patch file name test cases.</a><span class='msg-avail'>...</span></td><td>Chris Marusich</td></tr>
<tr><td><span title='2020-11-21 22:11:36 -0500'>2020-11-21</span></td><td><a href='/guix/commit/tests/lint.scm?id=464b1fffb0f08a452b4ee67ba23c87730d73568e'>lint: Add 'check-haskell-stackage' checker.</a><span class='msg-avail'>...</span></td><td>Timothy Sample</td></tr>
<tr><td><span title='2020-11-21 12:39:14 +0100'>2020-11-21</span></td><td><a href='/guix/commit/tests/lint.scm?id=4f156c259f984f4f5a3692364746446294ee102c'>lint: Add 'patch-headers' checker.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>