Simplify TCG generation of hex_reg_written Address feedback from Richard Henderson <richard.hender...@linaro.org>
Signed-off-by: Taylor Simpson <tsimp...@quicinc.com> --- target/hexagon/genptr.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/target/hexagon/genptr.c b/target/hexagon/genptr.c index 7481f4c..349b949 100644 --- a/target/hexagon/genptr.c +++ b/target/hexagon/genptr.c @@ -43,9 +43,15 @@ static inline void gen_log_predicated_reg_write(int rnum, TCGv val, int slot) tcg_gen_movcond_tl(TCG_COND_EQ, hex_new_value[rnum], slot_mask, zero, val, hex_new_value[rnum]); #if HEX_DEBUG - /* Do this so HELPER(debug_commit_end) will know */ - tcg_gen_movcond_tl(TCG_COND_EQ, hex_reg_written[rnum], slot_mask, zero, - one, hex_reg_written[rnum]); + /* + * Do this so HELPER(debug_commit_end) will know + * + * Note that slot_mask indicates the value is not written + * (i.e., slot was cancelled), so we create a true/false value before + * or'ing with hex_reg_written[rnum]. + */ + tcg_gen_setcond_tl(TCG_COND_EQ, slot_mask, slot_mask, zero); + tcg_gen_or_tl(hex_reg_written[rnum], hex_reg_written[rnum], slot_mask); #endif tcg_temp_free(one); -- 2.7.4