qemu/0062-tcg-mips-use-stack-for-TCG-temps.patch

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2012-10-28 18:05:07 +00:00
From c914ae50df4dc2f2ab589c87c0cd2ce2f14d9639 Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Fri, 21 Sep 2012 18:20:26 +0200
Subject: [PATCH] tcg/mips: use stack for TCG temps
Use stack instead of temp_buf array in CPUState for TCG
temps.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
tcg/mips/tcg-target.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/tcg/mips/tcg-target.c b/tcg/mips/tcg-target.c
index 0ea6a76..c05169f 100644
--- a/tcg/mips/tcg-target.c
+++ b/tcg/mips/tcg-target.c
@@ -1538,11 +1538,15 @@ static void tcg_target_qemu_prologue(TCGContext *s)
{
int i, frame_size;
- /* reserve some stack space */
+ /* reserve some stack space, also for TCG temps. */
frame_size = ARRAY_SIZE(tcg_target_callee_save_regs) * 4
- + TCG_STATIC_CALL_ARGS_SIZE;
+ + TCG_STATIC_CALL_ARGS_SIZE
+ + CPU_TEMP_BUF_NLONGS * sizeof(long);
frame_size = (frame_size + TCG_TARGET_STACK_ALIGN - 1) &
~(TCG_TARGET_STACK_ALIGN - 1);
+ tcg_set_frame(s, TCG_REG_SP, ARRAY_SIZE(tcg_target_callee_save_regs) * 4
+ + TCG_STATIC_CALL_ARGS_SIZE,
+ CPU_TEMP_BUF_NLONGS * sizeof(long));
/* TB prologue */
tcg_out_addi(s, TCG_REG_SP, -frame_size);
@@ -1597,6 +1601,4 @@ static void tcg_target_init(TCGContext *s)
tcg_regset_set_reg(s->reserved_regs, TCG_REG_GP); /* global pointer */
tcg_add_target_add_op_defs(mips_op_defs);
- tcg_set_frame(s, TCG_AREG0, offsetof(CPUArchState, temp_buf),
- CPU_TEMP_BUF_NLONGS * sizeof(long));
}