diff options
| author | Richard Henderson <rth@twiddle.net> | 2010-05-06 05:50:45 +0000 |
|---|---|---|
| committer | malc <av1474@comtv.ru> | 2010-06-29 23:30:36 +0400 |
| commit | b9e946c781abaf9f2aea6a5545a4e56ae27ee3b4 (patch) | |
| tree | 89aca3ae21219566c33f8c9cc3f4b016d2592279 /tcg | |
| parent | 408392b30d685e36c9f8dd67910d72157443ad27 (diff) | |
tcg-ppc: Conditionally reserve TCG_GUEST_BASE_REG.
We need not reserve the register unless we're going to use it.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: malc <av1474@comtv.ru>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/ppc/tcg-target.c | 8 | ||||
| -rw-r--r-- | tcg/ppc64/tcg-target.c | 9 |
2 files changed, 8 insertions, 9 deletions
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c index 2e5bb9f884..7970268e5a 100644 --- a/tcg/ppc/tcg-target.c +++ b/tcg/ppc/tcg-target.c @@ -933,7 +933,10 @@ static void tcg_target_qemu_prologue (TCGContext *s) tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size + LR_OFFSET)); #ifdef CONFIG_USE_GUEST_BASE - tcg_out_movi (s, TCG_TYPE_I32, TCG_GUEST_BASE_REG, GUEST_BASE); + if (GUEST_BASE) { + tcg_out_movi (s, TCG_TYPE_I32, TCG_GUEST_BASE_REG, GUEST_BASE); + tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); + } #endif tcg_out32 (s, MTSPR | RS (3) | CTR); @@ -1914,9 +1917,6 @@ static void tcg_target_init(TCGContext *s) #ifdef _CALL_SYSV tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); #endif -#ifdef CONFIG_USE_GUEST_BASE - tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); -#endif tcg_add_target_add_op_defs(ppc_op_defs); } diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 0483d6bd78..5ba5d053b7 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -899,7 +899,10 @@ static void tcg_target_qemu_prologue (TCGContext *s) tcg_out32 (s, STD | RS (0) | RA (1) | (frame_size + 16)); #ifdef CONFIG_USE_GUEST_BASE - tcg_out_movi (s, TCG_TYPE_I64, TCG_GUEST_BASE_REG, GUEST_BASE); + if (GUEST_BASE) { + tcg_out_movi (s, TCG_TYPE_I64, TCG_GUEST_BASE_REG, GUEST_BASE); + tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); + } #endif tcg_out32 (s, MTSPR | RS (3) | CTR); @@ -1692,9 +1695,5 @@ static void tcg_target_init (TCGContext *s) #endif tcg_regset_set_reg (s->reserved_regs, TCG_REG_R13); -#ifdef CONFIG_USE_GUEST_BASE - tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); -#endif - tcg_add_target_add_op_defs (ppc_op_defs); } |