diff options
| author | Richard Henderson <rth@twiddle.net> | 2016-06-19 22:59:13 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-07-05 20:50:13 -0700 |
| commit | 59d7c14eeff8d2ad7f61aed86ce5a176113bc153 (patch) | |
| tree | a35fd8794ff364683cd31b650affc4f3d9289ce1 /tcg/arm | |
| parent | 120c1084ed53ba2967ba2a6e751cdfb00a17c246 (diff) | |
tcg: Optimize spills of constants
While we can store constants via constrants on INDEX_op_st_i32 et al,
we weren't able to spill constants to backing store.
Add a new backend interface, tcg_out_sti, which may store the constant
(and is allowed to fail). Rearrange the temp_* helpers so that we only
attempt to directly store a constant when the temp is becoming dead/free.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/arm')
| -rw-r--r-- | tcg/arm/tcg-target.inc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tcg/arm/tcg-target.inc.c b/tcg/arm/tcg-target.inc.c index f9f54c64c6..172febafdd 100644 --- a/tcg/arm/tcg-target.inc.c +++ b/tcg/arm/tcg-target.inc.c @@ -2046,6 +2046,12 @@ static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, tcg_out_st32(s, COND_AL, arg, arg1, arg2); } +static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val, + TCGReg base, intptr_t ofs) +{ + return false; +} + static inline void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg) { |