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[Qemu-devel] [PATCH v4 2/6] target/alpha: optimize cvtlq() using extract
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [PATCH v4 2/6] target/alpha: optimize cvtlq() using extract op |
Date: |
Fri, 12 May 2017 20:38:39 -0300 |
Patch created mechanically using Coccinelle script via:
$ spatch --macro-file scripts/cocci-macro-file.h --in-place \
--sp-file scripts/coccinelle/tcg_gen_extract.cocci --dir target
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
target/alpha/translate.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index df5d695344..531af4f5b8 100644
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -747,9 +747,8 @@ 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_extract_i64(vc, vb, 29, 30);
tcg_gen_andi_i64(tmp, tmp, (int32_t)0xc0000000);
- tcg_gen_andi_i64(vc, vc, 0x3fffffff);
tcg_gen_or_i64(vc, vc, tmp);
tcg_temp_free(tmp);
--
2.11.0
- [Qemu-devel] [RFC PATCH v4 0/6] optimize various tcg_gen() functions using extract op, Philippe Mathieu-Daudé, 2017/05/12
- [Qemu-devel] [RFC PATCH v4 1/6] coccinelle: add a script to optimize tcg op using tcg_gen_extract(), Philippe Mathieu-Daudé, 2017/05/12
- [Qemu-devel] [PATCH v4 2/6] target/alpha: optimize cvtlq() using extract op,
Philippe Mathieu-Daudé <=
- [Qemu-devel] [PATCH v4 3/6] target/arm: optimize rev16() using extract op, Philippe Mathieu-Daudé, 2017/05/12
- [Qemu-devel] [PATCH v4 4/6] target/m68k: optimize bcd_flags() using extract op, Philippe Mathieu-Daudé, 2017/05/12
- [Qemu-devel] [PATCH v4 5/6] target/ppc: optimize various functions using extract op, Philippe Mathieu-Daudé, 2017/05/12
- [Qemu-devel] [PATCH v4 6/6] target/sparc: optimize various functions using extract op, Philippe Mathieu-Daudé, 2017/05/12