Message ID | D221B89A-B6B9-46D1-BB93-713D690CB531@nokia.com |
---|---|
State | New |
Headers | show |
diff --git a/target-arm/translate.c b/target-arm/translate.c index c92ecc6..abb3105 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -7370,6 +7370,7 @@ static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1) tcg_gen_addi_i32(addr, addr, -offset); } + tmp2 = tcg_const_i32(4); for (i = 0; i < 16; i++) { if ((insn & (1 << i)) == 0)
Thumb2 load/store multiple instructions can be slightly optimized by loading the register offset constant into a variable outside the register loop and using the preloaded variable inside the loop instead of reloading the offset value to a temporary variable on each loop iteration. This causes less TCG ops to be generated for a Thumb2 load/ store multiple instruction. Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> --- continue; @@ -7386,8 +7387,9 @@ static int disas_thumb2_insn(CPUState *env, DisasContext *s, uint16_t insn_hw1) tmp = load_reg(s, i); gen_st32(tmp, addr, IS_USER(s)); } - tcg_gen_addi_i32(addr, addr, 4); + tcg_gen_add_i32(addr, addr, tmp2); } + tcg_temp_free_i32(tmp2); if (insn & (1 << 21)) { /* Base register writeback. */ if (insn & (1 << 24)) {