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[PULL 04/68] target/i386: fix avx2 instructions vzeroall and vpermdq
From: |
Paolo Bonzini |
Subject: |
[PULL 04/68] target/i386: fix avx2 instructions vzeroall and vpermdq |
Date: |
Wed, 17 May 2023 19:44:16 +0200 |
From: Xinyu Li <lixinyu20s@ict.ac.cn>
vzeroall: xmm_regs should be used instead of xmm_t0
vpermdq: bit 3 and 7 of imm should be considered
Signed-off-by: Xinyu Li <lixinyu20s@ict.ac.cn>
Message-Id: <20230510145222.586487-1-lixinyu20s@ict.ac.cn>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/ops_sse.h | 8 ++++++++
target/i386/tcg/emit.c.inc | 2 +-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/target/i386/ops_sse.h b/target/i386/ops_sse.h
index 0bd6bfad8a17..fb63af7afa21 100644
--- a/target/i386/ops_sse.h
+++ b/target/i386/ops_sse.h
@@ -2497,6 +2497,14 @@ void helper_vpermdq_ymm(Reg *d, Reg *v, Reg *s, uint32_t
order)
d->Q(1) = r1;
d->Q(2) = r2;
d->Q(3) = r3;
+ if (order & 0x8) {
+ d->Q(0) = 0;
+ d->Q(1) = 0;
+ }
+ if (order & 0x80) {
+ d->Q(2) = 0;
+ d->Q(3) = 0;
+ }
}
void helper_vpermq_ymm(Reg *d, Reg *s, uint32_t order)
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index 95fb4f52fabe..4fe8dec42746 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -2285,7 +2285,7 @@ static void gen_VZEROALL(DisasContext *s, CPUX86State
*env, X86DecodedInsn *deco
{
TCGv_ptr ptr = tcg_temp_new_ptr();
- tcg_gen_addi_ptr(ptr, cpu_env, offsetof(CPUX86State, xmm_t0));
+ tcg_gen_addi_ptr(ptr, cpu_env, offsetof(CPUX86State, xmm_regs));
gen_helper_memset(ptr, ptr, tcg_constant_i32(0),
tcg_constant_ptr(CPU_NB_REGS * sizeof(ZMMReg)));
}
--
2.40.1
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