On 2022/8/7 上午1:08, Richard Henderson wrote:
All of the fpu operations are defined with TCG_CALL_NO_WG, but they all modify FCSR0. The most efficient way to fix this is to remove cpu_fcsr0, and instead use explicit load and store operations for the two instructions that manipulate that value. Cc: Qi Hu<h...@loongson.cn> Cc: Song Gao<gaos...@loongson.cn> Reported-by: Feiyang Chen<chenfeiy...@loongson.cn> Signed-off-by: Richard Henderson<richard.hender...@linaro.org> --- target/loongarch/helper.h | 2 +- target/loongarch/fpu_helper.c | 4 +-- target/loongarch/translate.c | 3 -- tests/tcg/loongarch64/test_fcsr.c | 15 +++++++++ target/loongarch/insn_trans/trans_fmov.c.inc | 33 ++++++++++---------- tests/tcg/loongarch64/Makefile.target | 1 + 6 files changed, 36 insertions(+), 22 deletions(-) create mode 100644 tests/tcg/loongarch64/test_fcsr.c
Reviewed-by: Song Gao <gaos...@loongson.cn> Thanks. Song Gao
