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[PATCH 5/5] [amdgcn] Unfix frame pointer
- From: Kwok Cheung Yeung <kcy at codesourcery dot com>
- To: <gcc-patches at gcc dot gnu dot org>, Andrew Stubbs <ams at codesourcery dot com>, Julian Brown <julian at codesourcery dot com>
- Date: Thu, 14 Nov 2019 15:34:08 +0000
- Subject: [PATCH 5/5] [amdgcn] Unfix frame pointer
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- References: <0b37b07a-be6c-2ac6-c579-c7a522024419@codesourcery.com>
This patch unfixes the registers for the hard frame pointer so that they
can be used for other purposes if the frame pointer is not in use.
This patch is dependent on the commit 'Support using multiple registers
to hold the frame pointer' (r277895) to work properly.
Okay for trunk?
Kwok
2019-11-14 Kwok Cheung Yeung <kcy@codesourcery.com>
gcc/
* config/gcn/gcn.h (FIXED_REGISTERS): Unfix frame pointer.
(CALL_USED_REGISTERS): Make frame pointer callee-saved.
---
gcc/config/gcn/gcn.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/config/gcn/gcn.h b/gcc/config/gcn/gcn.h
index dd3789b..e60b431 100644
--- a/gcc/config/gcn/gcn.h
+++ b/gcc/config/gcn/gcn.h
@@ -162,7 +162,7 @@
/* Scalars. */ \
1, 1, 0, 0, 1, 1, 0, 0, 1, 1, \
/* fp sp lr. */ \
- 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, \
+ 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, \
/* exec_save, cc_save */ \
1, 1, 1, 1, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@@ -203,7 +203,7 @@
#define CALL_USED_REGISTERS { \
/* Scalars. */ \
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
+ 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, \
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \
1, 1, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
--
2.8.1