From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:48717) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF6KP-0006aw-Fj for qemu-devel@nongnu.org; Fri, 21 Sep 2012 12:43:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TF6KN-00084c-U8 for qemu-devel@nongnu.org; Fri, 21 Sep 2012 12:43:45 -0400 Received: from hall.aurel32.net ([88.191.126.93]:43337) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF6KN-00084P-LA for qemu-devel@nongnu.org; Fri, 21 Sep 2012 12:43:43 -0400 From: Aurelien Jarno Date: Fri, 21 Sep 2012 18:43:28 +0200 Message-Id: <1348245809-13482-10-git-send-email-aurelien@aurel32.net> In-Reply-To: <1348245809-13482-1-git-send-email-aurelien@aurel32.net> References: <1348245809-13482-1-git-send-email-aurelien@aurel32.net> Subject: [Qemu-devel] [PATCH 09/10] tcg/mips: implement deposit op on MIPS32R2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Aurelien Jarno deposit operations can be optimized on MIPS32 Release 2 using the INS instruction. Signed-off-by: Aurelien Jarno --- tcg/mips/tcg-target.c | 8 ++++++++ tcg/mips/tcg-target.h | 3 ++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/tcg/mips/tcg-target.c b/tcg/mips/tcg-target.c index 592e42a..b2e1056 100644 --- a/tcg/mips/tcg-target.c +++ b/tcg/mips/tcg-target.c @@ -328,6 +328,7 @@ enum { OPC_BGEZ = OPC_REGIMM | (0x01 << 16), OPC_SPECIAL3 = 0x1f << 26, + OPC_INS = OPC_SPECIAL3 | 0x004, OPC_WSBH = OPC_SPECIAL3 | 0x0a0, OPC_SEB = OPC_SPECIAL3 | 0x420, OPC_SEH = OPC_SPECIAL3 | 0x620, @@ -1455,6 +1456,11 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_ext16s(s, args[0], args[1]); break; + case INDEX_op_deposit_i32: + tcg_out_opc_imm(s, OPC_INS, args[0], args[2], + ((args[3] + args[4] - 1) << 11) | (args[3] << 6)); + break; + case INDEX_op_brcond_i32: tcg_out_brcond(s, args[2], args[0], args[1], args[3]); break; @@ -1550,6 +1556,8 @@ static const TCGTargetOpDef mips_op_defs[] = { { INDEX_op_ext8s_i32, { "r", "rZ" } }, { INDEX_op_ext16s_i32, { "r", "rZ" } }, + { INDEX_op_deposit_i32, { "r", "0", "rZ" } }, + { INDEX_op_brcond_i32, { "rZ", "rZ" } }, { INDEX_op_setcond_i32, { "r", "rZ", "rZ" } }, { INDEX_op_setcond2_i32, { "r", "rZ", "rZ", "rZ", "rZ" } }, diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h index 470314c..897a737 100644 --- a/tcg/mips/tcg-target.h +++ b/tcg/mips/tcg-target.h @@ -86,7 +86,6 @@ typedef enum { #define TCG_TARGET_HAS_orc_i32 0 #define TCG_TARGET_HAS_eqv_i32 0 #define TCG_TARGET_HAS_nand_i32 0 -#define TCG_TARGET_HAS_deposit_i32 0 #define TCG_TARGET_HAS_movcond_i32 0 /* optional instructions only implemented on MIPS32R2 */ @@ -94,10 +93,12 @@ typedef enum { #define TCG_TARGET_HAS_bswap16_i32 1 #define TCG_TARGET_HAS_bswap32_i32 1 #define TCG_TARGET_HAS_rot_i32 1 +#define TCG_TARGET_HAS_deposit_i32 1 #else #define TCG_TARGET_HAS_bswap16_i32 0 #define TCG_TARGET_HAS_bswap32_i32 0 #define TCG_TARGET_HAS_rot_i32 0 +#define TCG_TARGET_HAS_deposit_i32 0 #endif /* optional instructions automatically implemented */ -- 1.7.10.4