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-rw-r--r--src/include/c.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/include/c.h b/src/include/c.h
index ff7c2eddcec..2c2451d11e1 100644
--- a/src/include/c.h
+++ b/src/include/c.h
@@ -195,18 +195,25 @@
* Marking certain functions as "hot" or "cold" can be useful to assist the
* compiler in arranging the assembly code in a more efficient way.
*/
-#if defined(__has_attribute) && __has_attribute (cold)
+#if defined(__has_attribute)
+
+#if __has_attribute (cold)
#define pg_attribute_cold __attribute__((cold))
#else
#define pg_attribute_cold
#endif
-#if defined(__has_attribute) && __has_attribute (hot)
+#if __has_attribute (hot)
#define pg_attribute_hot __attribute__((hot))
#else
#define pg_attribute_hot
#endif
+#else
+#define pg_attribute_hot
+#define pg_attribute_cold
+#endif
+
/*
* Mark a point as unreachable in a portable fashion. This should preferably
* be something that the compiler understands, to aid code generation.