From 0422e94065d77179d610740f8d27dc6fb31685ae Mon Sep 17 00:00:00 2001
From: Ulrich Weigand <uweigand@de.ibm.com>
Date: Mon, 1 Dec 2003 16:17:32 +0000
Subject: [PATCH] reload.c (find_reloads_address): Split addresses of type
(plus (plus (reg) (reg)) (const_int)) only if...
* reload.c (find_reloads_address): Split addresses of type
(plus (plus (reg) (reg)) (const_int)) only if one register
is either a valid base register or else one of the stack
frame related registers (sp/fp/ap).
From-SVN: r74107
---
gcc/ChangeLog | 7 +++++++
gcc/reload.c | 18 ++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0e743a2e6888..545d9f11c3c2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2003-12-01 Ulrich Weigand <uweigand@de.ibm.com>
+
+ * reload.c (find_reloads_address): Split addresses of type
+ (plus (plus (reg) (reg)) (const_int)) only if one register
+ is either a valid base register or else one of the stack
+ frame related registers (sp/fp/ap).
+
2003-12-01 Steven Bosscher <stevenb@suse.de>
* function.c (update_epilogue_consts): Don't use PARAMS.
diff --git a/gcc/reload.c b/gcc/reload.c
index 33167eaed2f7..b448ff2d967f 100644
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -4905,6 +4905,15 @@ find_reloads_address (enum machine_mode mode, rtx *memrefloc, rtx ad,
&& GET_CODE (XEXP (ad, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (ad, 0), 0)) == REG
&& REGNO (XEXP (XEXP (ad, 0), 0)) < FIRST_PSEUDO_REGISTER
+ && (REG_MODE_OK_FOR_BASE_P (XEXP (XEXP (ad, 0), 0), mode)
+ || XEXP (XEXP (ad, 0), 0) == frame_pointer_rtx
+#if FRAME_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
+ || XEXP (XEXP (ad, 0), 0) == hard_frame_pointer_rtx
+#endif
+#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
+ || XEXP (XEXP (ad, 0), 0) == arg_pointer_rtx
+#endif
+ || XEXP (XEXP (ad, 0), 0) == stack_pointer_rtx)
&& ! maybe_memory_address_p (mode, ad, &XEXP (XEXP (ad, 0), 1)))
{
*loc = ad = gen_rtx_PLUS (GET_MODE (ad),
@@ -4924,6 +4933,15 @@ find_reloads_address (enum machine_mode mode, rtx *memrefloc, rtx ad,
&& GET_CODE (XEXP (ad, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (ad, 0), 1)) == REG
&& REGNO (XEXP (XEXP (ad, 0), 1)) < FIRST_PSEUDO_REGISTER
+ && (REG_MODE_OK_FOR_BASE_P (XEXP (XEXP (ad, 0), 1), mode)
+ || XEXP (XEXP (ad, 0), 1) == frame_pointer_rtx
+#if FRAME_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
+ || XEXP (XEXP (ad, 0), 1) == hard_frame_pointer_rtx
+#endif
+#if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM
+ || XEXP (XEXP (ad, 0), 1) == arg_pointer_rtx
+#endif
+ || XEXP (XEXP (ad, 0), 1) == stack_pointer_rtx)
&& ! maybe_memory_address_p (mode, ad, &XEXP (XEXP (ad, 0), 0)))
{
*loc = ad = gen_rtx_PLUS (GET_MODE (ad),
--
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