From: Richard Henderson <richard.henderson@linaro.org>
Date: Fri, 2 Jun 2023 22:29:28 +0000 (-0700)
Subject: target/i386: Use aesdec_ISB_ISR_IMC_AK
X-Git-Tag: qemu-xen-4.20.0~647^2~14
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=44a0c4a8ccb4c2d7688f4afd901620de6e3f2765;p=qemu-xen.git

target/i386: Use aesdec_ISB_ISR_IMC_AK

This implements the AESDEC instruction.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---

diff --git a/target/i386/ops_sse.h b/target/i386/ops_sse.h
index 93a4e0cf16..a0e425733f 100644
--- a/target/i386/ops_sse.h
+++ b/target/i386/ops_sse.h
@@ -2162,16 +2162,12 @@ void glue(helper_pclmulqdq, SUFFIX)(CPUX86State *env, Reg *d, Reg *v, Reg *s,
 
 void glue(helper_aesdec, SUFFIX)(CPUX86State *env, Reg *d, Reg *v, Reg *s)
 {
-    int i;
-    Reg st = *v;
-    Reg rk = *s;
-
-    for (i = 0 ; i < 2 << SHIFT ; i++) {
-        int j = i & 3;
-        d->L(i) = rk.L(i) ^ bswap32(AES_Td0[st.B(AES_ishifts[4 * j + 0])] ^
-                                    AES_Td1[st.B(AES_ishifts[4 * j + 1])] ^
-                                    AES_Td2[st.B(AES_ishifts[4 * j + 2])] ^
-                                    AES_Td3[st.B(AES_ishifts[4 * j + 3])]);
+    for (int i = 0; i < SHIFT; i++) {
+        AESState *ad = (AESState *)&d->ZMM_X(i);
+        AESState *st = (AESState *)&v->ZMM_X(i);
+        AESState *rk = (AESState *)&s->ZMM_X(i);
+
+        aesdec_ISB_ISR_IMC_AK(ad, st, rk, false);
     }
 }