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[PATCH][AARCH64]Amend AArch64 frame layout comment.
- From: Renlin Li <renlin dot li at arm dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Cc: Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>
- Date: Sun, 16 Mar 2014 11:25:38 +0000
- Subject: [PATCH][AARCH64]Amend AArch64 frame layout comment.
- Authentication-results: sourceware.org; auth=none
Hi all,
This is a simple patch to update the AArch64 frame layout comment in
the source code.
frame_pointer should point above the local_variables section as we
define FRAME_GROWS_DOWNWARD = 1.
Is this Okay for stage-4?
Regards,
Renlin Li
gcc/ChangeLog:
2014-03-16 Renlin Li <Renlin.Li@arm.com>
* config/aarch64/aarch64.c: Correct the comments about aarch64
stack layout.
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 901ad3d..fe96a28 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -1994,18 +1994,21 @@ aarch64_save_or_restore_callee_save_registers (HOST_WIDE_INT offset,
| callee-allocated save area |
| for register varargs |
| |
- +-------------------------------+
- | |
- | local variables |
- | |
+-------------------------------+ <-- frame_pointer_rtx
| |
- | callee-saved registers |
+ | local variables |
| |
- +-------------------------------+
- | LR' |
- +-------------------------------+
- | FP' |
+ +-------------------------------+
+ | padding0 | \
+ +-------------------------------+ |
+ | | |
+ | | |
+ | callee-saved registers | | frame.saved_regs_size
+ | | |
+ +-------------------------------+ |
+ | LR' | |
+ +-------------------------------+ |
+ | FP' | /
P +-------------------------------+ <-- hard_frame_pointer_rtx
| dynamic allocation |
+-------------------------------+