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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, "Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PULL v3 73/91] target/arm: Improve trans_BFCI
Date: Mon, 13 Mar 2023 11:59:03 -0700	[thread overview]
Message-ID: <20230313185903.400351-2-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230313185903.400351-1-richard.henderson@linaro.org>

Reorg temporary usage so that we can use tcg_constant_i32.
tcg_gen_deposit_i32 already has a width == 32 special case,
so remove the check here.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/translate.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/target/arm/tcg/translate.c b/target/arm/tcg/translate.c
index b70b628000..2cb9368b1b 100644
--- a/target/arm/tcg/translate.c
+++ b/target/arm/tcg/translate.c
@@ -7261,8 +7261,8 @@ static bool trans_UBFX(DisasContext *s, arg_UBFX *a)
 
 static bool trans_BFCI(DisasContext *s, arg_BFCI *a)
 {
-    TCGv_i32 tmp;
     int msb = a->msb, lsb = a->lsb;
+    TCGv_i32 t_in, t_rd;
     int width;
 
     if (!ENABLE_ARCH_6T2) {
@@ -7277,16 +7277,14 @@ static bool trans_BFCI(DisasContext *s, arg_BFCI *a)
     width = msb + 1 - lsb;
     if (a->rn == 15) {
         /* BFC */
-        tmp = tcg_const_i32(0);
+        t_in = tcg_constant_i32(0);
     } else {
         /* BFI */
-        tmp = load_reg(s, a->rn);
+        t_in = load_reg(s, a->rn);
     }
-    if (width != 32) {
-        TCGv_i32 tmp2 = load_reg(s, a->rd);
-        tcg_gen_deposit_i32(tmp, tmp2, tmp, lsb, width);
-    }
-    store_reg(s, a->rd, tmp);
+    t_rd = load_reg(s, a->rd);
+    tcg_gen_deposit_i32(t_rd, t_rd, t_in, lsb, width);
+    store_reg(s, a->rd, t_rd);
     return true;
 }
 
-- 
2.34.1



  reply	other threads:[~2023-03-13 18:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-13 18:59 [PULL v3 00/91] tcg patch queue Richard Henderson
2023-03-13 18:59 ` Richard Henderson [this message]
2023-03-14 14:28 ` Peter Maydell

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