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target-i386: Rewrite gen_enter inline

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Use gen_lea_v_seg for centralized segment base knowledge.  Unify
code across 32- and 64-bit.  Fix note about "must save state"
before using the out-of-line helpers.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1450379966-28198-8-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Richard Henderson 2015-12-17 11:19:23 -08:00 • committed by Paolo Bonzini
parent d37ea0c047
commit 743e398e2f
3 changed files with 32 additions and 135 deletions
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4
target-i386/helper.h
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@ -44,10 +44,6 @@ DEF_HELPER_FLAGS_3(set_dr, TCG_CALL_NO_WG, void, env, int, tl)
DEF_HELPER_FLAGS_2(get_dr, TCG_CALL_NO_WG, tl, env, int)
DEF_HELPER_2(invlpg, void, env, tl)
DEF_HELPER_4(enter_level, void, env, int, int, tl)
#ifdef TARGET_X86_64
DEF_HELPER_4(enter64_level, void, env, int, int, tl)
#endif
DEF_HELPER_1(sysenter, void, env)
DEF_HELPER_2(sysexit, void, env, int)
#ifdef TARGET_X86_64