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| author | Richard Henderson <rth@twiddle.net> | 2010-05-06 08:50:42 -0700 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2010-05-21 18:41:21 +0200 |
| commit | 4b31713dc4fa81e9026413acc6825073b92453bc (patch) | |
| tree | 83282eeebbe957acc5848d6b668d9779fd07553c /tcg | |
| parent | 9002ec794e8154ff774270cf9fac5f850a1c5751 (diff) | |
| download | qemu-4b31713dc4fa81e9026413acc6825073b92453bc.tar.gz qemu-4b31713dc4fa81e9026413acc6825073b92453bc.tar.bz2 qemu-4b31713dc4fa81e9026413acc6825073b92453bc.zip | |
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 <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/hppa/tcg-target.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/tcg/hppa/tcg-target.c b/tcg/hppa/tcg-target.c index cb605f1061..558c21f67f 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); } |