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authorRichard Henderson <rth@twiddle.net>2016-09-12 19:01:53 -0700
committerRichard Henderson <rth@twiddle.net>2016-10-31 14:46:48 -0600
commitda1bcae65288bdd51e0a7203d1e6c9cde1be5b3d (patch)
tree02b313878209f6a141bd5de4ef31e617f0c6bd66 /target-sparc
parent47b2696b975b794c6fa7b9fa8ae4699e749d662c (diff)
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target-sparc: Use tcg_gen_atomic_xchg_tl
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-sparc')
-rw-r--r--target-sparc/translate.c19
1 files changed, 4 insertions, 15 deletions
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index 4920cf28e7..82f5e67f0f 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -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 */