diff options
| author | Richard Henderson <rth@twiddle.net> | 2013-08-14 14:41:43 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2013-09-02 09:08:29 -0700 |
| commit | 3c9a8f17560794ad23889318cc42894c6e592cc3 (patch) | |
| tree | 7fa03c152e93ebde0dd17c95762e087461bff7b8 /tcg/mips | |
| parent | 03271524b66dfc979cc0412bdb5d8d617426b644 (diff) | |
| download | qemu-3c9a8f17560794ad23889318cc42894c6e592cc3.tar.gz | |
tcg-mips: Implement mulsh, muluh
With the optimization in tcg_liveness_analysis,
we can avoid the MFLO when it is unused.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/mips')
| -rw-r--r-- | tcg/mips/tcg-target.c | 10 | ||||
| -rw-r--r-- | tcg/mips/tcg-target.h | 4 |
2 files changed, 12 insertions, 2 deletions
diff --git a/tcg/mips/tcg-target.c b/tcg/mips/tcg-target.c index 793532ec95..31cd514167 100644 --- a/tcg/mips/tcg-target.c +++ b/tcg/mips/tcg-target.c @@ -1423,6 +1423,14 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0); tcg_out_opc_reg(s, OPC_MFHI, args[1], 0, 0); break; + case INDEX_op_mulsh_i32: + tcg_out_opc_reg(s, OPC_MULT, 0, args[1], args[2]); + tcg_out_opc_reg(s, OPC_MFHI, args[0], 0, 0); + break; + case INDEX_op_muluh_i32: + tcg_out_opc_reg(s, OPC_MULTU, 0, args[1], args[2]); + tcg_out_opc_reg(s, OPC_MFHI, args[0], 0, 0); + break; case INDEX_op_div_i32: tcg_out_opc_reg(s, OPC_DIV, 0, args[1], args[2]); tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0); @@ -1602,6 +1610,8 @@ static const TCGTargetOpDef mips_op_defs[] = { { INDEX_op_mul_i32, { "r", "rZ", "rZ" } }, { INDEX_op_muls2_i32, { "r", "r", "rZ", "rZ" } }, { INDEX_op_mulu2_i32, { "r", "r", "rZ", "rZ" } }, + { INDEX_op_mulsh_i32, { "r", "rZ", "rZ" } }, + { INDEX_op_muluh_i32, { "r", "rZ", "rZ" } }, { INDEX_op_div_i32, { "r", "rZ", "rZ" } }, { INDEX_op_divu_i32, { "r", "rZ", "rZ" } }, { INDEX_op_rem_i32, { "r", "rZ", "rZ" } }, diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h index 6cb7c2f3c4..7ef79e0879 100644 --- a/tcg/mips/tcg-target.h +++ b/tcg/mips/tcg-target.h @@ -89,8 +89,8 @@ typedef enum { #define TCG_TARGET_HAS_eqv_i32 0 #define TCG_TARGET_HAS_nand_i32 0 #define TCG_TARGET_HAS_muls2_i32 1 -#define TCG_TARGET_HAS_muluh_i32 0 -#define TCG_TARGET_HAS_mulsh_i32 0 +#define TCG_TARGET_HAS_muluh_i32 1 +#define TCG_TARGET_HAS_mulsh_i32 1 /* optional instructions only implemented on MIPS4, MIPS32 and Loongson 2 */ #if (defined(__mips_isa_rev) && (__mips_isa_rev >= 1)) || \ |