From 03037c6590589d6a10d45aa6b9bd8aa0add2b817 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Tue, 14 Jan 2020 12:53:33 -0800 Subject: [PATCH v2 4/9] WIP: Annotate palloc() with malloc and other compiler attributes. In particularly malloc is useful, allowing the compiler to realize that the return value does not alias with other data, allowing other optimizations. If we were to do this, we'd obviously need to hide these behind macros to support compilers without those attributes. Author: Reviewed-By: Discussion: https://postgr.es/m/ Backpatch: --- src/include/utils/palloc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/include/utils/palloc.h b/src/include/utils/palloc.h index cc356a63728..a611148be67 100644 --- a/src/include/utils/palloc.h +++ b/src/include/utils/palloc.h @@ -74,7 +74,7 @@ extern void *MemoryContextAllocZeroAligned(MemoryContext context, Size size); extern void *MemoryContextAllocExtended(MemoryContext context, Size size, int flags); -extern void *palloc(Size size); +extern void *palloc(Size size) __attribute__((malloc, alloc_size(1), assume_aligned(MAXIMUM_ALIGNOF), returns_nonnull, warn_unused_result)); extern void *palloc0(Size size); extern void *palloc_extended(Size size, int flags); extern void *repalloc(void *pointer, Size size); -- 2.25.0.114.g5b0ca878e0