From: Philippe Mathieu-Daudé Date: Tue, 18 Jul 2017 04:55:39 +0000 (-0300) Subject: target/alpha: optimize gen_cvtlq() using deposit op X-Git-Tag: v2.10.0-rc0~30^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=729028a6e2816d64cb01cf4c1920686be90600da;p=thirdparty%2Fqemu.git target/alpha: optimize gen_cvtlq() using deposit op Suggested-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20170718045540.16322-10-f4bug@amsat.org> Signed-off-by: Richard Henderson --- diff --git a/target/alpha/translate.c b/target/alpha/translate.c index 90e6d5285f0..744d8bbf125 100644 --- a/target/alpha/translate.c +++ b/target/alpha/translate.c @@ -783,11 +783,9 @@ static void gen_cvtlq(TCGv vc, TCGv vb) /* The arithmetic right shift here, plus the sign-extended mask below yields a sign-extended result without an explicit ext32s_i64. */ - tcg_gen_sari_i64(tmp, vb, 32); - tcg_gen_shri_i64(vc, vb, 29); - tcg_gen_andi_i64(tmp, tmp, (int32_t)0xc0000000); - tcg_gen_andi_i64(vc, vc, 0x3fffffff); - tcg_gen_or_i64(vc, vc, tmp); + tcg_gen_shri_i64(tmp, vb, 29); + tcg_gen_sari_i64(vc, vb, 32); + tcg_gen_deposit_i64(vc, vc, tmp, 0, 30); tcg_temp_free(tmp); }