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[Qemu-devel] [PATCH v5 09/10] target/alpha: optimize gen_cvtlq() using d
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [PATCH v5 09/10] target/alpha: optimize gen_cvtlq() using deposit op |
Date: |
Tue, 18 Jul 2017 01:55:39 -0300 |
Suggested-by: Richard Henderson <address@hidden>
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
target/alpha/translate.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index 232af9e177..2bffbae92f 100644
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -756,11 +756,9 @@ 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);
}
--
2.13.2
- [Qemu-devel] [PATCH v5 01/10] coccinelle: ignore ASTs pre-parsed cached C files, (continued)
- [Qemu-devel] [PATCH v5 01/10] coccinelle: ignore ASTs pre-parsed cached C files, Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 02/10] coccinelle: add a script to optimize tcg op using tcg_gen_extract(), Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 03/10] target/arm: optimize aarch64 rev16() using extract op, Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 04/10] target/m68k: optimize bcd_flags() using extract op, Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 06/10] target/sparc: optimize various functions using extract op, Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 05/10] target/ppc: optimize various functions using extract op, Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 07/10] target/sparc: optimize gen_op_mulscc() using extract op, Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 08/10] target/sparc: optimize gen_op_mulscc() using deposit op, Philippe Mathieu-Daudé, 2017/07/18
- [Qemu-devel] [PATCH v5 09/10] target/alpha: optimize gen_cvtlq() using deposit op,
Philippe Mathieu-Daudé <=
- [Qemu-devel] [PATCH v5 10/10] tcg/tci: enable bswap16_i64, Philippe Mathieu-Daudé, 2017/07/18
- Re: [Qemu-devel] [PATCH v5 00/10] optimize various tcg_gen() functions using extract/deposit op, Richard Henderson, 2017/07/18