Adapted from https://github.com/digego/extempore/pull/322/files

--- a/include/llvm/IR/ValueMap.h	2015-08-04 00:30:24.000000000 +0200
+++ b/include/llvm/IR/ValueMap.h	2018-07-14 21:09:09.769502736 +0200
@@ -99,7 +99,7 @@
   explicit ValueMap(const ExtraData &Data, unsigned NumInitBuckets = 64)
       : Map(NumInitBuckets), Data(Data) {}

-  bool hasMD() const { return MDMap; }
+  bool hasMD() const { return static_cast<bool>(MDMap); }
   MDMapT &MD() {
     if (!MDMap)
       MDMap.reset(new MDMapT);
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<tr><td><span title='2020-12-04 18:19:39 +0100'>2020-12-04</span></td><td><a href='/guix/commit/etc/snippets/text-mode?id=39e8bc2ab8f755e05050f2dcbf07143e724d22ed'>etc: snippets: Fix name extraction.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/text-mode/guix-commit-message-add-package: Fix name
extraction. This is a follow-up to 988a49c78ef19ad25cef543e2059a19db04bbd36.
</span></span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2020-12-04 17:09:38 +0100'>2020-12-04</span></td><td><a href='/guix/commit/etc/snippets/text-mode?id=988a49c78ef19ad25cef543e2059a19db04bbd36'>etc: snippets: Fix name extraction.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/text-mode/guix-commit-message-update-package: Since git commit
mode is not derived from any Lisp mode, so-called sexp or symbols do not
include the period character.  As a consequence, names including versions are
not properly extracted. Also use more idiomatic (goto-char (point-min))
instead of (beginning-of-buffer).
</span></span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2020-11-25 10:45:42 +0100'>2020-11-25</span></td><td><a href='/guix/commit/etc/snippets/text-mode?id=402f1104e58b8e76d42689770d0c6b106afaffc8'>etc: snippets: Fix "gnu: Add ..." name when prefilling Common Lisp commits me...</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/text-mode/guix-commit-message-add-cl-package: Fix name and
simplify the "New variables" line.
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<tr><td><span title='2020-11-23 11:14:22 +0100'>2020-11-23</span></td><td><a href='/guix/commit/etc/snippets/text-mode?id=add47499170222f1d449a9a63444e01f115805ff'>etc: snippets: Prefill Common Lisp package names.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/text-mode/guix-commit-message-add-cl-package: New file.
</span></span></td><td>Pierre Neidhardt</td></tr>
<tr><td><span title='2020-11-23 11:13:58 +0100'>2020-11-23</span></td><td><a href='/guix/commit/etc/snippets/text-mode?id=8307b8f184d59f69b66292ae1137997caa50cb15'>etc: snippets: Fix package name extraction.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/snippets/text-mode/guix-commit-message-add-package: Properly extract
name when the diff contains a very short `define-public ...` above the actual
new package.  This can happen when the above package is a small inherited
definition or cl/ecl package.
</span></span></td><td>Pierre Neidhardt</td></tr>