| Message ID | 20241126131546.66145-10-philmd@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | target/mips: Simplify some target_ulong registers to 32-bit | expand |
On 11/26/24 07:15, Philippe Mathieu-Daudé wrote: > Similarly to the gen_move_low32_tl() helper which sign-extract > the 32-lower bits of a target-wide TCG register, add a helper > to sign-extract from 32-bit TCG register. "to a 32-bit TCG register" I'm not sure "sign-extract" is really correct in either case, since it's always truncation. But for the code, Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/target/mips/tcg/translate.h b/target/mips/tcg/translate.h index d9faa82ff70..d5d74faad92 100644 --- a/target/mips/tcg/translate.h +++ b/target/mips/tcg/translate.h @@ -154,6 +154,7 @@ void check_cop1x(DisasContext *ctx); void gen_base_offset_addr_tl(DisasContext *ctx, TCGv addr, int base, int offset); void gen_move_low32_tl(TCGv ret, TCGv_i64 arg); +void gen_move_low32_i32(TCGv_i32 ret, TCGv_i64 arg); void gen_move_high32_tl(TCGv ret, TCGv_i64 arg); void gen_load_gpr_tl(TCGv t, int reg); void gen_load_gpr_i32(TCGv_i32 t, int reg); diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index 6ac0734d1b2..80e2a8e5256 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -1479,6 +1479,11 @@ void gen_move_low32_tl(TCGv ret, TCGv_i64 arg) #endif } +void gen_move_low32_i32(TCGv_i32 ret, TCGv_i64 arg) +{ + tcg_gen_extrl_i64_i32(ret, arg); +} + /* Sign-extract the high 32-bits to a target_long. */ void gen_move_high32_tl(TCGv ret, TCGv_i64 arg) {
Similarly to the gen_move_low32_tl() helper which sign-extract the 32-lower bits of a target-wide TCG register, add a helper to sign-extract from 32-bit TCG register. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- target/mips/tcg/translate.h | 1 + target/mips/tcg/translate.c | 5 +++++ 2 files changed, 6 insertions(+)