diff options
| author | Andreas Färber <afaerber@suse.de> | 2012-05-12 03:16:58 +0200 |
|---|---|---|
| committer | malc <av1474@comtv.ru> | 2012-05-15 00:53:31 +0400 |
| commit | f4f7d01a3af6fccd2afd2abd624ab1720ee11855 (patch) | |
| tree | bfd547d854e3cb28f33458808d7bc3c439aa794d /tcg | |
| parent | c82e5848e21b7ef5d03310f50ef64ed7d006f5d9 (diff) | |
| download | qemu-f4f7d01a3af6fccd2afd2abd624ab1720ee11855.tar.gz qemu-f4f7d01a3af6fccd2afd2abd624ab1720ee11855.tar.bz2 qemu-f4f7d01a3af6fccd2afd2abd624ab1720ee11855.zip | |
tcg/ppc64: Fix CONFIG_TCG_PASS_AREG0
In qemu_ld/st load the registers for the helper calls directly rather
than rotating them around afterwards for AREG0.
Also clobber the additional register.
Signed-off-by: Andreas F?rber <afaerber@suse.de>
Signed-off-by: malc <av1474@comtv.ru>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/ppc64/tcg-target.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 0573a72c9d..c800574588 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -235,6 +235,9 @@ static int target_parse_constraint (TCGArgConstraint *ct, const char **pct_str) tcg_regset_reset_reg (ct->u.regs, TCG_REG_R3); #ifdef CONFIG_SOFTMMU tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4); +#ifdef CONFIG_TCG_PASS_AREG0 + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R5); +#endif #endif break; case 'S': /* qemu_st constraint */ @@ -244,6 +247,9 @@ static int target_parse_constraint (TCGArgConstraint *ct, const char **pct_str) #ifdef CONFIG_SOFTMMU tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4); tcg_regset_reset_reg (ct->u.regs, TCG_REG_R5); +#ifdef CONFIG_TCG_PASS_AREG0 + tcg_regset_reset_reg (ct->u.regs, TCG_REG_R6); +#endif #endif break; case 'Z': @@ -670,18 +676,12 @@ static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc) /* slow path */ ir = 3; +#ifdef CONFIG_TCG_PASS_AREG0 + tcg_out_mov (s, TCG_TYPE_I64, ir++, TCG_AREG0); +#endif tcg_out_mov (s, TCG_TYPE_I64, ir++, addr_reg); tcg_out_movi (s, TCG_TYPE_I64, ir++, mem_index); -#ifdef CONFIG_TCG_PASS_AREG0 - /* XXX/FIXME: suboptimal */ - tcg_out_mov (s, TCG_TYPE_I32, tcg_target_call_iarg_regs[2], - tcg_target_call_iarg_regs[1]); - tcg_out_mov (s, TCG_TYPE_TL, tcg_target_call_iarg_regs[1], - tcg_target_call_iarg_regs[0]); - tcg_out_mov (s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0], - TCG_AREG0); -#endif tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1); switch (opc) { @@ -827,21 +827,13 @@ static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc) /* slow path */ ir = 3; +#ifdef CONFIG_TCG_PASS_AREG0 + tcg_out_mov (s, TCG_TYPE_I64, ir++, TCG_AREG0); +#endif tcg_out_mov (s, TCG_TYPE_I64, ir++, addr_reg); tcg_out_rld (s, RLDICL, ir++, data_reg, 0, 64 - (1 << (3 + opc))); tcg_out_movi (s, TCG_TYPE_I64, ir++, mem_index); -#ifdef CONFIG_TCG_PASS_AREG0 - /* XXX/FIXME: suboptimal */ - tcg_out_mov (s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3], - tcg_target_call_iarg_regs[2]); - tcg_out_mov (s, TCG_TYPE_I64, tcg_target_call_iarg_regs[2], - tcg_target_call_iarg_regs[1]); - tcg_out_mov (s, TCG_TYPE_TL, tcg_target_call_iarg_regs[1], - tcg_target_call_iarg_regs[0]); - tcg_out_mov (s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0], - TCG_AREG0); -#endif tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1); label2_ptr = s->code_ptr; |