From: Wilco Dijkstra <wdijkstr@arm.com>
Date: Thu, 2 Nov 2017 15:12:51 +0000 (+0000)
Subject: Define MALLOC_ABI_ALIGNMENT
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e10dbae3dad0ac5269685620caa6f2698b00d669;p=gcc.git

Define MALLOC_ABI_ALIGNMENT

The AArch64 backend currently doesn't set MALLOC_ABI_ALIGNMENT, so
add this to enable alignment optimizations on malloc pointers.
Use the same value as STACK_BOUNDARY and BIGGEST_ALIGNMENT.

    gcc/
	* config/aarch64/aarch64.h (MALLOC_ABI_ALIGNMENT): New define.

From-SVN: r254348
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 12d55f8c7a1..0af62d17265 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2017-11-02  Wilco Dijkstra  <wdijkstr@arm.com>
+
+	* config/aarch64/aarch64.h (MALLOC_ABI_ALIGNMENT): New define.
+
 2017-11-02  Jeff Law  <law@redhat.com>
 
 	* gimple-ssa-sprintf.c (sprintf_dom_walker): Remove
diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
index bc1ccc34281..5e2e2fccff3 100644
--- a/gcc/config/aarch64/aarch64.h
+++ b/gcc/config/aarch64/aarch64.h
@@ -111,6 +111,9 @@
 
 #define STRUCTURE_SIZE_BOUNDARY		8
 
+/* Heap alignment (same as BIGGEST_ALIGNMENT and STACK_BOUNDARY).  */
+#define MALLOC_ABI_ALIGNMENT  128
+
 /* Defined by the ABI */
 #define WCHAR_TYPE "unsigned int"
 #define WCHAR_TYPE_SIZE			32