From: Laurent Desnogues Date: Sun, 13 Sep 2009 12:27:31 +0000 (+0200) Subject: ARM back-end: Use sxt[bh] instructions for ext{8, 6}s X-Git-Tag: TizenStudio_2.0_p2.3~7399 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e619a5e4441009a4c79263f40d870981d909d2e3;p=sdk%2Femulator%2Fqemu.git ARM back-end: Use sxt[bh] instructions for ext{8, 6}s This patch uses sxtb for ext8s_i32 and sxth for ext16s_i32 in ARM back-end. Signed-off-by: Laurent Desnogues Signed-off-by: Aurelien Jarno --- diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 59e89d4..f8d626d 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -1547,16 +1547,26 @@ static inline void tcg_out_op(TCGContext *s, int opc, break; case INDEX_op_ext8s_i32: +#ifdef __ARM_ARCH_7A__ + /* sxtb */ + tcg_out32(s, 0xe6af0070 | (args[0] << 12) | args[1]); +#else tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], SHIFT_IMM_LSL(24)); tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[0], SHIFT_IMM_ASR(24)); +#endif break; case INDEX_op_ext16s_i32: +#ifdef __ARM_ARCH_7A__ + /* sxth */ + tcg_out32(s, 0xe6bf0070 | (args[0] << 12) | args[1]); +#else tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], SHIFT_IMM_LSL(16)); tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[0], SHIFT_IMM_ASR(16)); +#endif break; default: