From 29a551b3b4cf567c6aedada344cc9108975e95fa Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@codesourcery.com>
Date: Tue, 8 Jun 2010 13:15:25 +0000
Subject: [PATCH] arm.c (arm_rtx_costs_1): Don't special case for Thumb-2 in
the MINUS case.
* config/arm/arm.c (arm_rtx_costs_1): Don't special case for
Thumb-2 in the MINUS case.
From-SVN: r160436
---
gcc/ChangeLog | 5 +++++
gcc/config/arm/arm.c | 17 -----------------
2 files changed, 5 insertions(+), 17 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 46703abeece4..486b3cf2f6e9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-06-08 Kazu Hirata <kazu@codesourcery.com>
+
+ * config/arm/arm.c (arm_rtx_costs_1): Don't special case for
+ Thumb-2 in the MINUS case.
+
2010-06-08 Laurynas Biveinis <laurynas.biveinis@gmail.com>
* doc/tm.texi (Per-Function Data): Do not reference ggc_alloc.
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index e44e94946fbe..7de0197d33fd 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -6377,23 +6377,6 @@ arm_rtx_costs_1 (rtx x, enum rtx_code outer, int* total, bool speed)
return true;
case MINUS:
- if (TARGET_THUMB2)
- {
- if (GET_MODE_CLASS (mode) == MODE_FLOAT)
- {
- if (TARGET_HARD_FLOAT && (mode == SFmode || mode == DFmode))
- *total = COSTS_N_INSNS (1);
- else
- *total = COSTS_N_INSNS (20);
- }
- else
- *total = COSTS_N_INSNS (ARM_NUM_REGS (mode));
- /* Thumb2 does not have RSB, so all arguments must be
- registers (subtracting a constant is canonicalized as
- addition of the negated constant). */
- return false;
- }
-
if (mode == DImode)
{
*total = COSTS_N_INSNS (ARM_NUM_REGS (mode));
--
GitLab