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[PATCH v3 22/23] i386: AVX pclmulqdq prep
From: |
Paolo Bonzini |
Subject: |
[PATCH v3 22/23] i386: AVX pclmulqdq prep |
Date: |
Thu, 1 Sep 2022 09:48:41 +0200 |
From: Paul Brook <paul@nowt.org>
Make the pclmulqdq helper AVX ready
Signed-off-by: Paul Brook <paul@nowt.org>
Message-Id: <20220424220204.2493824-21-paul@nowt.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/ops_sse.h | 29 ++++++++++++++++++++++-------
1 file changed, 22 insertions(+), 7 deletions(-)
diff --git a/target/i386/ops_sse.h b/target/i386/ops_sse.h
index a11a0143bf..4135623ad8 100644
--- a/target/i386/ops_sse.h
+++ b/target/i386/ops_sse.h
@@ -2211,14 +2211,14 @@ target_ulong helper_crc32(uint32_t crc1, target_ulong
msg, uint32_t len)
#endif
-void glue(helper_pclmulqdq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
- uint32_t ctrl)
+#if SHIFT == 1
+static void clmulq(uint64_t *dest_l, uint64_t *dest_h,
+ uint64_t a, uint64_t b)
{
- uint64_t ah, al, b, resh, resl;
+ uint64_t al, ah, resh, resl;
ah = 0;
- al = d->Q((ctrl & 1) != 0);
- b = s->Q((ctrl & 16) != 0);
+ al = a;
resh = resl = 0;
while (b) {
@@ -2231,8 +2231,23 @@ void glue(helper_pclmulqdq, SUFFIX)(CPUX86State *env,
Reg *d, Reg *s,
b >>= 1;
}
- d->Q(0) = resl;
- d->Q(1) = resh;
+ *dest_l = resl;
+ *dest_h = resh;
+}
+#endif
+
+void glue(helper_pclmulqdq, SUFFIX)(CPUX86State *env, Reg *d, Reg *s,
+ uint32_t ctrl)
+{
+ Reg *v = d;
+ uint64_t a, b;
+ int i;
+
+ for (i = 0; i < 1 << SHIFT; i += 2) {
+ a = v->Q(((ctrl & 1) != 0) + i);
+ b = s->Q(((ctrl & 16) != 0) + i);
+ clmulq(&d->Q(i), &d->Q(i + 1), a, b);
+ }
}
void glue(helper_aesdec, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
--
2.37.1
- [PATCH v3 12/23] i386: Rewrite vector shift helper, (continued)
- [PATCH v3 12/23] i386: Rewrite vector shift helper, Paolo Bonzini, 2022/09/01
- [PATCH v3 14/23] i386: Misc integer AVX helper prep, Paolo Bonzini, 2022/09/01
- [PATCH v3 13/23] i386: Rewrite simple integer vector helpers, Paolo Bonzini, 2022/09/01
- [PATCH v3 17/23] i386: reimplement AVX comparison helpers, Paolo Bonzini, 2022/09/01
- [PATCH v3 20/23] i386: Misc AVX helper prep, Paolo Bonzini, 2022/09/01
- [PATCH v3 19/23] i386: Destructive FP helpers for AVX, Paolo Bonzini, 2022/09/01
- [PATCH v3 15/23] i386: Destructive vector helpers for AVX, Paolo Bonzini, 2022/09/01
- [PATCH v3 16/23] i386: Floating point arithmetic helper AVX prep, Paolo Bonzini, 2022/09/01
- [PATCH v3 22/23] i386: AVX pclmulqdq prep,
Paolo Bonzini <=
- [PATCH v3 23/23] i386: AVX+AES helpers prep, Paolo Bonzini, 2022/09/01