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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




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