diff options
| author | Richard Henderson <rth@twiddle.net> | 2017-07-31 06:03:03 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-09-07 11:57:35 -0700 |
| commit | 53c89efd02cef626040165cc8f06b5cf2c15355d (patch) | |
| tree | ea10a0bd8d35657ba1b59b10933ac82156d55e89 /tcg | |
| parent | 77bfc7c0b442f1cee5da5706f4de429a526ddac5 (diff) | |
| download | qemu-53c89efd02cef626040165cc8f06b5cf2c15355d.zip | |
tcg/ppc: Use constant pool for movi
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/ppc/tcg-target.h | 1 | ||||
| -rw-r--r-- | tcg/ppc/tcg-target.inc.c | 34 |
2 files changed, 31 insertions, 4 deletions
diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h index 3772cc6648..be52ad1d2e 100644 --- a/tcg/ppc/tcg-target.h +++ b/tcg/ppc/tcg-target.h @@ -132,5 +132,6 @@ void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t); #ifdef CONFIG_SOFTMMU #define TCG_TARGET_NEED_LDST_LABELS #endif +#define TCG_TARGET_NEED_POOL_LABELS #endif diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c index df709c4a96..21d764c102 100644 --- a/tcg/ppc/tcg-target.inc.c +++ b/tcg/ppc/tcg-target.inc.c @@ -22,6 +22,9 @@ * THE SOFTWARE. */ +#include "elf.h" +#include "tcg-pool.inc.c" + #if defined _CALL_DARWIN || defined __APPLE__ #define TCG_TARGET_CALL_DARWIN #endif @@ -58,8 +61,6 @@ static tcg_insn_unit *tb_ret_addr; -#include "elf.h" - bool have_isa_2_06; bool have_isa_3_00; @@ -224,9 +225,12 @@ static inline void tcg_out_bc_noaddr(TCGContext *s, int insn) static void patch_reloc(tcg_insn_unit *code_ptr, int type, intptr_t value, intptr_t addend) { - tcg_insn_unit *target = (tcg_insn_unit *)value; + tcg_insn_unit *target; + tcg_insn_unit old; + + value += addend; + target = (tcg_insn_unit *)value; - tcg_debug_assert(addend == 0); switch (type) { case R_PPC_REL14: reloc_pc14(code_ptr, target); @@ -234,6 +238,12 @@ static void patch_reloc(tcg_insn_unit *code_ptr, int type, case R_PPC_REL24: reloc_pc24(code_ptr, target); break; + case R_PPC_ADDR16: + assert(value == (int16_t)value); + old = *code_ptr; + old = deposit32(old, 0, 16, value); + *code_ptr = old; + break; default: tcg_abort(); } @@ -676,6 +686,14 @@ static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret, return; } + /* Use the constant pool, if possible. */ + if (!in_prologue && USE_REG_TB) { + new_pool_label(s, arg, R_PPC_ADDR16, s->code_ptr, + -(intptr_t)s->code_gen_ptr); + tcg_out32(s, LD | TAI(ret, TCG_REG_TB, 0)); + return; + } + tmp = arg >> 31 >> 1; tcg_out_movi(s, TCG_TYPE_I32, ret, tmp); if (tmp) { @@ -1858,6 +1876,14 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64) #endif } +static void tcg_out_nop_fill(tcg_insn_unit *p, int count) +{ + int i; + for (i = 0; i < count; ++i) { + p[i] = NOP; + } +} + /* Parameters for function call generation, used in tcg.c. */ #define TCG_TARGET_STACK_ALIGN 16 #define TCG_TARGET_EXTEND_ARGS 1 |