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(STRUCTURE_SIZE_BOUNDARY): Add comment explaining why it's 32.
author
Doug Evans
<dje@gnu.org>
Tue, 21 May 1996 17:25:24 +0000
(17:25 +0000)
committer
Doug Evans
<dje@gnu.org>
Tue, 21 May 1996 17:25:24 +0000
(17:25 +0000)
From-SVN: r12066
gcc/config/arm/arm.h
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diff --git
a/gcc/config/arm/arm.h
b/gcc/config/arm/arm.h
index 68e6a15ef13d8e02ea8447cdd2a5f8382e1fe294..d7a22a1f09b6c8a0b315d54250646c0705587bd0 100644
(file)
--- a/
gcc/config/arm/arm.h
+++ b/
gcc/config/arm/arm.h
@@
-400,6
+400,9
@@
extern int arm_arch4;
&& (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
/* Every structures size must be a multiple of 32 bits. */
+/* This is for compatibility with ARMCC. ARM SDT Reference Manual
+ (ARM DUI 0020D) page 2-20 says "Structures are aligned on word
+ boundaries". */
#define STRUCTURE_SIZE_BOUNDARY 32
/* Non-zero if move instructions will actually fail to work