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target-sparc: Use tcg_gen_atomic_xchg_tl

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Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-09-12 19:01:53 -07:00
parent 47b2696b97
commit da1bcae652
1 changed files with 4 additions and 15 deletions
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19
target-sparc/translate.c
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@ -2026,27 +2026,16 @@ static inline void gen_ne_fop_QD(DisasContext *dc, int rd, int rs,
static void gen_swap(DisasContext *dc, TCGv dst, TCGv src,
TCGv addr, int mmu_idx, TCGMemOp memop)
{
/* ??? Should be atomic. */
TCGv t0 = tcg_temp_new();
gen_address_mask(dc, addr);
tcg_gen_qemu_ld_tl(t0, addr, mmu_idx, memop);
tcg_gen_qemu_st_tl(src, addr, mmu_idx, memop);
tcg_gen_mov_tl(dst, t0);
tcg_temp_free(t0);
tcg_gen_atomic_xchg_tl(dst, addr, src, mmu_idx, memop);
}
static void gen_ldstub(DisasContext *dc, TCGv dst, TCGv addr, int mmu_idx)
{
/* ??? Should be atomic. */
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_const_i32(0xff);
TCGv m1 = tcg_const_tl(0xff);
gen_address_mask(dc, addr);
tcg_gen_qemu_ld_i32(t0, addr, mmu_idx, MO_UB);
tcg_gen_qemu_st_i32(t1, addr, mmu_idx, MO_UB);
tcg_gen_extu_i32_tl(dst, t0);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
tcg_gen_atomic_xchg_tl(dst, addr, m1, mmu_idx, MO_UB);
tcg_temp_free(m1);
}
/* asi moves */