mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

target-sparc: Use mul*2 for multiply

Browse Source 
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2013-02-19 23:52:22 -08:00 committed by Blue Swirl
parent 15fe216fc5
commit 528692a8a4
1 changed files with 18 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
target-sparc/translate.c
View File

@ -642,39 +642,30 @@ static inline void gen_op_mulscc(TCGv dst, TCGv src1, TCGv src2)
static inline void gen_op_multiply(TCGv dst, TCGv src1, TCGv src2, int sign_ext)
{
TCGv_i32 r_src1, r_src2;
TCGv_i64 r_temp, r_temp2;
r_src1 = tcg_temp_new_i32();
r_src2 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(r_src1, src1);
tcg_gen_trunc_tl_i32(r_src2, src2);
r_temp = tcg_temp_new_i64();
r_temp2 = tcg_temp_new_i64();
#if TARGET_LONG_BITS == 32
if (sign_ext) {
tcg_gen_muls2_tl(dst, cpu_y, src1, src2);
} else {
tcg_gen_mulu2_tl(dst, cpu_y, src1, src2);
}
#else
TCGv t0 = tcg_temp_new_i64();
TCGv t1 = tcg_temp_new_i64();
if (sign_ext) {
tcg_gen_ext_i32_i64(r_temp, r_src2);
tcg_gen_ext_i32_i64(r_temp2, r_src1);
tcg_gen_ext32s_i64(t0, src1);
tcg_gen_ext32s_i64(t1, src2);
} else {
tcg_gen_extu_i32_i64(r_temp, r_src2);
tcg_gen_extu_i32_i64(r_temp2, r_src1);
tcg_gen_ext32u_i64(t0, src1);
tcg_gen_ext32u_i64(t1, src2);
}
tcg_gen_mul_i64(r_temp2, r_temp, r_temp2);
tcg_gen_mul_i64(dst, t0, t1);
tcg_temp_free(t0);
tcg_temp_free(t1);
tcg_gen_shri_i64(r_temp, r_temp2, 32);
tcg_gen_trunc_i64_tl(cpu_y, r_temp);
tcg_temp_free_i64(r_temp);
tcg_gen_andi_tl(cpu_y, cpu_y, 0xffffffff);
tcg_gen_trunc_i64_tl(dst, r_temp2);
tcg_temp_free_i64(r_temp2);
tcg_temp_free_i32(r_src1);
tcg_temp_free_i32(r_src2);
tcg_gen_shri_i64(cpu_y, dst, 32);
#endif
}
static inline void gen_op_umul(TCGv dst, TCGv src1, TCGv src2)