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[Qemu-devel] [PATCH 17/18] tcg/arm: optimize register allocation order
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 17/18] tcg/arm: optimize register allocation order |
Date: |
Wed, 7 Apr 2010 19:51:24 +0200 |
The beginning of the register allocation order list on the TCG arm
target matches the list of clobbered registers. This means that when an
helper is called, there is almost always clobbered registers that have
to be spilled.
Signed-off-by: Aurelien Jarno <address@hidden>
---
tcg/arm/tcg-target.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c
index 91542bd..03fe11c 100644
--- a/tcg/arm/tcg-target.c
+++ b/tcg/arm/tcg-target.c
@@ -65,10 +65,6 @@ static const char * const
tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
#endif
static const int tcg_target_reg_alloc_order[] = {
- TCG_REG_R0,
- TCG_REG_R1,
- TCG_REG_R2,
- TCG_REG_R3,
TCG_REG_R4,
TCG_REG_R5,
TCG_REG_R6,
@@ -77,8 +73,12 @@ static const int tcg_target_reg_alloc_order[] = {
TCG_REG_R9,
TCG_REG_R10,
TCG_REG_R11,
- TCG_REG_R12,
TCG_REG_R13,
+ TCG_REG_R0,
+ TCG_REG_R1,
+ TCG_REG_R2,
+ TCG_REG_R3,
+ TCG_REG_R12,
TCG_REG_R14,
};
--
1.7.0.4
- [Qemu-devel] [PATCH 08/18] tcg/arm: use the blx instruction when possible, (continued)
- [Qemu-devel] [PATCH 08/18] tcg/arm: use the blx instruction when possible, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 06/18] tcg/arm: add defines for the allowed instructions set, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 03/18] tcg/arm: remove store signed functions, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 04/18] tcg/arm: replace integer values by registers enum, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 18/18] tcg/arm: don't try to load constants using pc, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 13/18] tcg/arm: use ext* ops in qemu_ld, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 10/18] tcg/arm: add ext16u op, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 16/18] tcg/arm: fix argument alignment in qemu_st64, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 17/18] tcg/arm: optimize register allocation order,
Aurelien Jarno <=
- [Qemu-devel] [PATCH 14/18] tcg/arm: bswap arguments in qemu_ld/st if needed, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 15/18] tcg/arm: remove useless register tests in qemu_ld/st, Aurelien Jarno, 2010/04/07
- [Qemu-devel] [PATCH 12/18] tcg/arm: remove conditional argument for qemu_ld/st, Aurelien Jarno, 2010/04/07