From ca675f46e695bd49a1c21a5e82c6b8c77ee12edf Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 11 Mar 2013 22:41:47 -0700 Subject: tcg: Split rem requirement from div requirement There are several hosts with only a "div" insn. Remainder is computed manually from the quotient and inputs. We can do this generically. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- tcg/aarch64/tcg-target.h | 2 ++ tcg/arm/tcg-target.h | 2 ++ tcg/hppa/tcg-target.h | 1 + tcg/ia64/tcg-target.h | 2 ++ tcg/mips/tcg-target.h | 1 + tcg/ppc/tcg-target.h | 1 + tcg/ppc64/tcg-target.h | 2 ++ tcg/sparc/tcg-target.h | 2 ++ tcg/tcg-op.h | 32 ++++++++++++++++++++++++++++---- tcg/tcg-opc.h | 8 ++++---- tcg/tcg.h | 3 +++ tcg/tci/tcg-target.h | 6 ++---- 12 files changed, 50 insertions(+), 12 deletions(-) (limited to 'tcg') diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h index 97e4a5baa7..51e50920b2 100644 --- a/tcg/aarch64/tcg-target.h +++ b/tcg/aarch64/tcg-target.h @@ -40,6 +40,7 @@ typedef enum { /* optional instructions */ #define TCG_TARGET_HAS_div_i32 0 +#define TCG_TARGET_HAS_rem_i32 0 #define TCG_TARGET_HAS_ext8s_i32 1 #define TCG_TARGET_HAS_ext16s_i32 1 #define TCG_TARGET_HAS_ext8u_i32 1 @@ -62,6 +63,7 @@ typedef enum { #define TCG_TARGET_HAS_muls2_i32 0 #define TCG_TARGET_HAS_div_i64 0 +#define TCG_TARGET_HAS_rem_i64 0 #define TCG_TARGET_HAS_ext8s_i64 1 #define TCG_TARGET_HAS_ext16s_i64 1 #define TCG_TARGET_HAS_ext32s_i64 1 diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h index 3be41cce3c..2c5b4e73ff 100644 --- a/tcg/arm/tcg-target.h +++ b/tcg/arm/tcg-target.h @@ -76,8 +76,10 @@ typedef enum { #ifdef __ARM_ARCH_EXT_IDIV__ #define TCG_TARGET_HAS_div_i32 1 +#define TCG_TARGET_HAS_rem_i32 1 #else #define TCG_TARGET_HAS_div_i32 0 +#define TCG_TARGET_HAS_rem_i32 0 #endif extern bool tcg_target_deposit_valid(int ofs, int len); diff --git a/tcg/hppa/tcg-target.h b/tcg/hppa/tcg-target.h index ebd53d9e36..25467bdd43 100644 --- a/tcg/hppa/tcg-target.h +++ b/tcg/hppa/tcg-target.h @@ -85,6 +85,7 @@ typedef enum { /* optional instructions */ #define TCG_TARGET_HAS_div_i32 0 +#define TCG_TARGET_HAS_rem_i32 0 #define TCG_TARGET_HAS_rot_i32 1 #define TCG_TARGET_HAS_ext8s_i32 1 #define TCG_TARGET_HAS_ext16s_i32 1 diff --git a/tcg/ia64/tcg-target.h b/tcg/ia64/tcg-target.h index e3d72ea52f..f32d5199cb 100644 --- a/tcg/ia64/tcg-target.h +++ b/tcg/ia64/tcg-target.h @@ -104,7 +104,9 @@ typedef enum { /* optional instructions */ #define TCG_TARGET_HAS_div_i32 0 +#define TCG_TARGET_HAS_rem_i32 0 #define TCG_TARGET_HAS_div_i64 0 +#define TCG_TARGET_HAS_rem_i64 0 #define TCG_TARGET_HAS_andc_i32 1 #define TCG_TARGET_HAS_andc_i64 1 #define TCG_TARGET_HAS_bswap16_i32 1 diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h index 6155327a9a..a438950bc1 100644 --- a/tcg/mips/tcg-target.h +++ b/tcg/mips/tcg-target.h @@ -79,6 +79,7 @@ typedef enum { /* optional instructions */ #define TCG_TARGET_HAS_div_i32 1 +#define TCG_TARGET_HAS_rem_i32 1 #define TCG_TARGET_HAS_not_i32 1 #define TCG_TARGET_HAS_nor_i32 1 #define TCG_TARGET_HAS_ext8s_i32 1 diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h index 17a6bb367a..01b880e772 100644 --- a/tcg/ppc/tcg-target.h +++ b/tcg/ppc/tcg-target.h @@ -78,6 +78,7 @@ typedef enum { /* optional instructions */ #define TCG_TARGET_HAS_div_i32 1 +#define TCG_TARGET_HAS_rem_i32 1 #define TCG_TARGET_HAS_rot_i32 1 #define TCG_TARGET_HAS_ext8s_i32 1 #define TCG_TARGET_HAS_ext16s_i32 1 diff --git a/tcg/ppc64/tcg-target.h b/tcg/ppc64/tcg-target.h index cb77634714..7c600f17da 100644 --- a/tcg/ppc64/tcg-target.h +++ b/tcg/ppc64/tcg-target.h @@ -76,6 +76,7 @@ typedef enum { /* optional instructions */ #define TCG_TARGET_HAS_div_i32 1 +#define TCG_TARGET_HAS_rem_i32 1 #define TCG_TARGET_HAS_rot_i32 1 #define TCG_TARGET_HAS_ext8s_i32 1 #define TCG_TARGET_HAS_ext16s_i32 1 @@ -96,6 +97,7 @@ typedef enum { #define TCG_TARGET_HAS_muls2_i32 0 #define TCG_TARGET_HAS_div_i64 1 +#define TCG_TARGET_HAS_rem_i64 1 #define TCG_TARGET_HAS_rot_i64 1 #define TCG_TARGET_HAS_ext8s_i64 1 #define TCG_TARGET_HAS_ext16s_i64 1 diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h index b5217bef25..dab52d7176 100644 --- a/tcg/sparc/tcg-target.h +++ b/tcg/sparc/tcg-target.h @@ -86,6 +86,7 @@ typedef enum { /* optional instructions */ #define TCG_TARGET_HAS_div_i32 1 +#define TCG_TARGET_HAS_rem_i32 1 #define TCG_TARGET_HAS_rot_i32 0 #define TCG_TARGET_HAS_ext8s_i32 0 #define TCG_TARGET_HAS_ext16s_i32 0 @@ -109,6 +110,7 @@ typedef enum { #if TCG_TARGET_REG_BITS == 64 #define TCG_TARGET_HAS_div_i64 1 +#define TCG_TARGET_HAS_rem_i64 1 #define TCG_TARGET_HAS_rot_i64 0 #define TCG_TARGET_HAS_ext8s_i64 0 #define TCG_TARGET_HAS_ext16s_i64 0 diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h index 94f6043786..364964d8d4 100644 --- a/tcg/tcg-op.h +++ b/tcg/tcg-op.h @@ -731,8 +731,14 @@ static inline void tcg_gen_div_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) static inline void tcg_gen_rem_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) { - if (TCG_TARGET_HAS_div_i32) { + if (TCG_TARGET_HAS_rem_i32) { tcg_gen_op3_i32(INDEX_op_rem_i32, ret, arg1, arg2); + } else if (TCG_TARGET_HAS_div_i32) { + TCGv_i32 t0 = tcg_temp_new_i32(); + tcg_gen_op3_i32(INDEX_op_div_i32, t0, arg1, arg2); + tcg_gen_mul_i32(t0, t0, arg2); + tcg_gen_sub_i32(ret, arg1, t0); + tcg_temp_free_i32(t0); } else if (TCG_TARGET_HAS_div2_i32) { TCGv_i32 t0 = tcg_temp_new_i32(); tcg_gen_sari_i32(t0, arg1, 31); @@ -769,8 +775,14 @@ static inline void tcg_gen_divu_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) static inline void tcg_gen_remu_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) { - if (TCG_TARGET_HAS_div_i32) { + if (TCG_TARGET_HAS_rem_i32) { tcg_gen_op3_i32(INDEX_op_remu_i32, ret, arg1, arg2); + } else if (TCG_TARGET_HAS_div_i32) { + TCGv_i32 t0 = tcg_temp_new_i32(); + tcg_gen_op3_i32(INDEX_op_divu_i32, t0, arg1, arg2); + tcg_gen_mul_i32(t0, t0, arg2); + tcg_gen_sub_i32(ret, arg1, t0); + tcg_temp_free_i32(t0); } else if (TCG_TARGET_HAS_div2_i32) { TCGv_i32 t0 = tcg_temp_new_i32(); tcg_gen_movi_i32(t0, 0); @@ -1361,8 +1373,14 @@ static inline void tcg_gen_div_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) static inline void tcg_gen_rem_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) { - if (TCG_TARGET_HAS_div_i64) { + if (TCG_TARGET_HAS_rem_i64) { tcg_gen_op3_i64(INDEX_op_rem_i64, ret, arg1, arg2); + } else if (TCG_TARGET_HAS_div_i64) { + TCGv_i64 t0 = tcg_temp_new_i64(); + tcg_gen_op3_i64(INDEX_op_div_i64, t0, arg1, arg2); + tcg_gen_mul_i64(t0, t0, arg2); + tcg_gen_sub_i64(ret, arg1, t0); + tcg_temp_free_i64(t0); } else if (TCG_TARGET_HAS_div2_i64) { TCGv_i64 t0 = tcg_temp_new_i64(); tcg_gen_sari_i64(t0, arg1, 63); @@ -1399,8 +1417,14 @@ static inline void tcg_gen_divu_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) static inline void tcg_gen_remu_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) { - if (TCG_TARGET_HAS_div_i64) { + if (TCG_TARGET_HAS_rem_i64) { tcg_gen_op3_i64(INDEX_op_remu_i64, ret, arg1, arg2); + } else if (TCG_TARGET_HAS_div_i64) { + TCGv_i64 t0 = tcg_temp_new_i64(); + tcg_gen_op3_i64(INDEX_op_divu_i64, t0, arg1, arg2); + tcg_gen_mul_i64(t0, t0, arg2); + tcg_gen_sub_i64(ret, arg1, t0); + tcg_temp_free_i64(t0); } else if (TCG_TARGET_HAS_div2_i64) { TCGv_i64 t0 = tcg_temp_new_i64(); tcg_gen_movi_i64(t0, 0); diff --git a/tcg/tcg-opc.h b/tcg/tcg-opc.h index 4246e9c1fa..12967fb6ee 100644 --- a/tcg/tcg-opc.h +++ b/tcg/tcg-opc.h @@ -66,8 +66,8 @@ DEF(sub_i32, 1, 2, 0, 0) DEF(mul_i32, 1, 2, 0, 0) DEF(div_i32, 1, 2, 0, IMPL(TCG_TARGET_HAS_div_i32)) DEF(divu_i32, 1, 2, 0, IMPL(TCG_TARGET_HAS_div_i32)) -DEF(rem_i32, 1, 2, 0, IMPL(TCG_TARGET_HAS_div_i32)) -DEF(remu_i32, 1, 2, 0, IMPL(TCG_TARGET_HAS_div_i32)) +DEF(rem_i32, 1, 2, 0, IMPL(TCG_TARGET_HAS_rem_i32)) +DEF(remu_i32, 1, 2, 0, IMPL(TCG_TARGET_HAS_rem_i32)) DEF(div2_i32, 2, 3, 0, IMPL(TCG_TARGET_HAS_div2_i32)) DEF(divu2_i32, 2, 3, 0, IMPL(TCG_TARGET_HAS_div2_i32)) DEF(and_i32, 1, 2, 0, 0) @@ -126,8 +126,8 @@ DEF(sub_i64, 1, 2, 0, IMPL64) DEF(mul_i64, 1, 2, 0, IMPL64) DEF(div_i64, 1, 2, 0, IMPL64 | IMPL(TCG_TARGET_HAS_div_i64)) DEF(divu_i64, 1, 2, 0, IMPL64 | IMPL(TCG_TARGET_HAS_div_i64)) -DEF(rem_i64, 1, 2, 0, IMPL64 | IMPL(TCG_TARGET_HAS_div_i64)) -DEF(remu_i64, 1, 2, 0, IMPL64 | IMPL(TCG_TARGET_HAS_div_i64)) +DEF(rem_i64, 1, 2, 0, IMPL64 | IMPL(TCG_TARGET_HAS_rem_i64)) +DEF(remu_i64, 1, 2, 0, IMPL64 | IMPL(TCG_TARGET_HAS_rem_i64)) DEF(div2_i64, 2, 3, 0, IMPL64 | IMPL(TCG_TARGET_HAS_div2_i64)) DEF(divu2_i64, 2, 3, 0, IMPL64 | IMPL(TCG_TARGET_HAS_div2_i64)) DEF(and_i64, 1, 2, 0, IMPL64) diff --git a/tcg/tcg.h b/tcg/tcg.h index df375cf31e..28ca1bd976 100644 --- a/tcg/tcg.h +++ b/tcg/tcg.h @@ -60,6 +60,7 @@ typedef uint64_t TCGRegSet; #if TCG_TARGET_REG_BITS == 32 /* Turn some undef macros into false macros. */ #define TCG_TARGET_HAS_div_i64 0 +#define TCG_TARGET_HAS_rem_i64 0 #define TCG_TARGET_HAS_div2_i64 0 #define TCG_TARGET_HAS_rot_i64 0 #define TCG_TARGET_HAS_ext8s_i64 0 @@ -102,11 +103,13 @@ typedef uint64_t TCGRegSet; #define TCG_TARGET_HAS_div2_i32 0 #elif defined(TCG_TARGET_HAS_div2_i32) #define TCG_TARGET_HAS_div_i32 0 +#define TCG_TARGET_HAS_rem_i32 0 #endif #if defined(TCG_TARGET_HAS_div_i64) #define TCG_TARGET_HAS_div2_i64 0 #elif defined(TCG_TARGET_HAS_div2_i64) #define TCG_TARGET_HAS_div_i64 0 +#define TCG_TARGET_HAS_rem_i64 0 #endif typedef enum TCGOpcode { diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h index 0395bbb8e4..d7fc14eb17 100644 --- a/tcg/tci/tcg-target.h +++ b/tcg/tci/tcg-target.h @@ -59,9 +59,8 @@ #define TCG_TARGET_HAS_bswap16_i32 1 #define TCG_TARGET_HAS_bswap32_i32 1 -/* Not more than one of the next two defines must be 1. */ #define TCG_TARGET_HAS_div_i32 1 -#define TCG_TARGET_HAS_div2_i32 0 +#define TCG_TARGET_HAS_rem_i32 1 #define TCG_TARGET_HAS_ext8s_i32 1 #define TCG_TARGET_HAS_ext16s_i32 1 #define TCG_TARGET_HAS_ext8u_i32 1 @@ -83,9 +82,8 @@ #define TCG_TARGET_HAS_bswap32_i64 1 #define TCG_TARGET_HAS_bswap64_i64 1 #define TCG_TARGET_HAS_deposit_i64 1 -/* Not more than one of the next two defines must be 1. */ #define TCG_TARGET_HAS_div_i64 0 -#define TCG_TARGET_HAS_div2_i64 0 +#define TCG_TARGET_HAS_rem_i64 0 #define TCG_TARGET_HAS_ext8s_i64 1 #define TCG_TARGET_HAS_ext16s_i64 1 #define TCG_TARGET_HAS_ext32s_i64 1 -- cgit v1.2.3