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[Emacs-diffs] emacs-25 dac64e3: Avoid optimizing out the last_marked[] a
From: |
Eli Zaretskii |
Subject: |
[Emacs-diffs] emacs-25 dac64e3: Avoid optimizing out the last_marked[] array |
Date: |
Tue, 11 Oct 2016 11:39:48 +0000 (UTC) |
branch: emacs-25
commit dac64e35ddd203be2b841e65cf16e11ce9b1be6a
Author: Eli Zaretskii <address@hidden>
Commit: Eli Zaretskii <address@hidden>
Avoid optimizing out the last_marked[] array
* src/alloc.c <last_marked>: No longer 'static', to avoid having
it optimized out in optimized builds, which then makes debugging
GC problems harder.
---
src/alloc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/alloc.c b/src/alloc.c
index c7f58a8..c5ae8b5 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -6014,7 +6014,9 @@ mark_glyph_matrix (struct glyph_matrix *matrix)
all the references contained in it. */
#define LAST_MARKED_SIZE 500
-static Lisp_Object last_marked[LAST_MARKED_SIZE];
+/* This is not static to prevent it from being optimized away in an
+ optimized build, which then makes debugging GC problems harder. */
+Lisp_Object last_marked[LAST_MARKED_SIZE];
static int last_marked_index;
/* For debugging--call abort when we cdr down this many
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