From 4b31713dc4fa81e9026413acc6825073b92453bc Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 6 May 2010 08:50:42 -0700 Subject: tcg-hppa: Load GUEST_BASE as an immediate. Now that the prologue is generated after GUEST_BASE is fixed, we can load it as an immediate, and also avoid reserving the register if it isn't necessary. Signed-off-by: Richard Henderson Signed-off-by: Aurelien Jarno --- tcg/hppa/tcg-target.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'tcg/hppa') diff --git a/tcg/hppa/tcg-target.c b/tcg/hppa/tcg-target.c index cb605f1..558c21f 100644 --- a/tcg/hppa/tcg-target.c +++ b/tcg/hppa/tcg-target.c @@ -1629,11 +1629,10 @@ void tcg_target_qemu_prologue(TCGContext *s) } #ifdef CONFIG_USE_GUEST_BASE - /* Note that GUEST_BASE can change after the prologue is generated. - To combat that, load the value from the variable instead of - embedding a constant here. */ - tcg_out_ld(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, - TCG_REG_R0, (tcg_target_long)&guest_base); + if (GUEST_BASE != 0) { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE); + tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); + } #endif /* Jump to TB, and adjust R18 to be the return address. */ @@ -1679,9 +1678,6 @@ void tcg_target_init(TCGContext *s) tcg_regset_set_reg(s->reserved_regs, TCG_REG_DP); /* data pointer */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP); /* stack pointer */ tcg_regset_set_reg(s->reserved_regs, TCG_REG_R31); /* ble link reg */ -#ifdef CONFIG_USE_GUEST_BASE - tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); -#endif tcg_add_target_add_op_defs(hppa_op_defs); } -- cgit v1.1