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target-sparc: Do exceptions management fully inside the helpers.

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This reduces the size of the individual translation blocks, since
we only emit a single call for each FOP rather than three.  In
addition, clear_float_exceptions expands inline to a single byte store.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2011-10-17 11:25:56 -07:00
parent 30038fd818
commit 445167723d
3 changed files with 146 additions and 91 deletions
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29
target-sparc/translate.c
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@ -1626,23 +1626,16 @@ static inline void gen_op_clear_ieee_excp_and_FTT(void)
tcg_gen_andi_tl(cpu_fsr, cpu_fsr, FSR_FTT_CEXC_NMASK);
}
static inline void gen_clear_float_exceptions(void)
{
gen_helper_clear_float_exceptions(cpu_env);
}
static inline void gen_fop_FF(DisasContext *dc, int rd, int rs,
void (*gen)(TCGv_i32, TCGv_ptr, TCGv_i32))
{
TCGv_i32 dst, src;
gen_clear_float_exceptions();
src = gen_load_fpr_F(dc, rs);
dst = gen_dest_fpr_F();
gen(dst, cpu_env, src);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_F(dc, rd, dst);
}
@ -1664,14 +1657,12 @@ static inline void gen_fop_FFF(DisasContext *dc, int rd, int rs1, int rs2,
{
TCGv_i32 dst, src1, src2;
gen_clear_float_exceptions();
src1 = gen_load_fpr_F(dc, rs1);
src2 = gen_load_fpr_F(dc, rs2);
dst = gen_dest_fpr_F();
gen(dst, cpu_env, src1, src2);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_F(dc, rd, dst);
}
@ -1696,13 +1687,11 @@ static inline void gen_fop_DD(DisasContext *dc, int rd, int rs,
{
TCGv_i64 dst, src;
gen_clear_float_exceptions();
src = gen_load_fpr_D(dc, rs);
dst = gen_dest_fpr_D();
gen(dst, cpu_env, src);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_D(dc, rd, dst);
}
@ -1726,14 +1715,12 @@ static inline void gen_fop_DDD(DisasContext *dc, int rd, int rs1, int rs2,
{
TCGv_i64 dst, src1, src2;
gen_clear_float_exceptions();
src1 = gen_load_fpr_D(dc, rs1);
src2 = gen_load_fpr_D(dc, rs2);
dst = gen_dest_fpr_D();
gen(dst, cpu_env, src1, src2);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_D(dc, rd, dst);
}
@ -1756,12 +1743,10 @@ static inline void gen_ne_fop_DDD(DisasContext *dc, int rd, int rs1, int rs2,
static inline void gen_fop_QQ(DisasContext *dc, int rd, int rs,
void (*gen)(TCGv_ptr))
{
gen_clear_float_exceptions();
gen_op_load_fpr_QT1(QFPREG(rs));
gen(cpu_env);
gen_helper_check_ieee_exceptions(cpu_env);
gen_op_store_QT0_fpr(QFPREG(rd));
gen_update_fprs_dirty(QFPREG(rd));
}
@ -1782,13 +1767,11 @@ static inline void gen_ne_fop_QQ(DisasContext *dc, int rd, int rs,
static inline void gen_fop_QQQ(DisasContext *dc, int rd, int rs1, int rs2,
void (*gen)(TCGv_ptr))
{
gen_clear_float_exceptions();
gen_op_load_fpr_QT0(QFPREG(rs1));
gen_op_load_fpr_QT1(QFPREG(rs2));
gen(cpu_env);
gen_helper_check_ieee_exceptions(cpu_env);
gen_op_store_QT0_fpr(QFPREG(rd));
gen_update_fprs_dirty(QFPREG(rd));
}
@ -1799,14 +1782,12 @@ static inline void gen_fop_DFF(DisasContext *dc, int rd, int rs1, int rs2,
TCGv_i64 dst;
TCGv_i32 src1, src2;
gen_clear_float_exceptions();
src1 = gen_load_fpr_F(dc, rs1);
src2 = gen_load_fpr_F(dc, rs2);
dst = gen_dest_fpr_D();
gen(dst, cpu_env, src1, src2);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_D(dc, rd, dst);
}
@ -1815,13 +1796,11 @@ static inline void gen_fop_QDD(DisasContext *dc, int rd, int rs1, int rs2,
{
TCGv_i64 src1, src2;
gen_clear_float_exceptions();
src1 = gen_load_fpr_D(dc, rs1);
src2 = gen_load_fpr_D(dc, rs2);
gen(cpu_env, src1, src2);
gen_helper_check_ieee_exceptions(cpu_env);
gen_op_store_QT0_fpr(QFPREG(rd));
gen_update_fprs_dirty(QFPREG(rd));
}
@ -1833,13 +1812,11 @@ static inline void gen_fop_DF(DisasContext *dc, int rd, int rs,
TCGv_i64 dst;
TCGv_i32 src;
gen_clear_float_exceptions();
src = gen_load_fpr_F(dc, rs);
dst = gen_dest_fpr_D();
gen(dst, cpu_env, src);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_D(dc, rd, dst);
}
#endif
@ -1864,13 +1841,11 @@ static inline void gen_fop_FD(DisasContext *dc, int rd, int rs,
TCGv_i32 dst;
TCGv_i64 src;
gen_clear_float_exceptions();
src = gen_load_fpr_D(dc, rs);
dst = gen_dest_fpr_F();
gen(dst, cpu_env, src);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_F(dc, rd, dst);
}
@ -1879,13 +1854,11 @@ static inline void gen_fop_FQ(DisasContext *dc, int rd, int rs,
{
TCGv_i32 dst;
gen_clear_float_exceptions();
gen_op_load_fpr_QT1(QFPREG(rs));
dst = gen_dest_fpr_F();
gen(dst, cpu_env);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_F(dc, rd, dst);
}
@ -1894,13 +1867,11 @@ static inline void gen_fop_DQ(DisasContext *dc, int rd, int rs,
{
TCGv_i64 dst;
gen_clear_float_exceptions();
gen_op_load_fpr_QT1(QFPREG(rs));
dst = gen_dest_fpr_D();
gen(dst, cpu_env);
gen_helper_check_ieee_exceptions(cpu_env);
gen_store_fpr_D(dc, rd, dst);
}