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From: "syq at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/104914] [MIPS] wrong comparison with scrabbled
 int value
Date: Sun, 24 Dec 2023 23:04:42 +0000
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X-Bugzilla-Component: rtl-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104914

--- Comment #20 from YunQiang Su <syq at gcc dot gnu.org> ---
This patch has 2 problems:

1. We may need some more steps to add
   gcc_assert (outprec < inprec)
   Now, I met some ICE with it.

2. It doesn't solve the this problem:
   In combine.cc, jump_insn eats truncate and sign_extend.
   In fact that is the real problem: How to tell combine.cc:
       don't eat it; this truncate/sign_extend is really needed by us.=