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From: "xry111 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/112330] [14 Regression] LoongArch: Outputted .align
 directive may trigger assembler error with GAS 2.41
Date: Thu, 02 Nov 2023 11:41:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112330

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|build                       |
            Summary|[14 Regression] LoongArch:  |[14 Regression] LoongArch:
                   |Bootstrap failure with GAS  |Outputted .align directive
                   |2.41                        |may trigger assembler error
                   |                            |with GAS 2.41

--- Comment #15 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to chenglulu from comment #14)

> First of all, if you add -mrelax during the assembly process,".align
> 16,54525952,4" will be based on the situation at the time of assembly, and
> the choice is to insert a nop function without insertion.But this ".align
> 16" will insert 3 nops unconditionally. When calculating the jump range of
> the conditional branch, gcc calculates the space required for .align
> according to the actual alignment.
> So after r14-4674 there will be an error=EF=BC=8E

Well, this indicates that the issue can be only triggered with some "bad lu=
ck".
 In fact with latest GCC trunk (r14-5075) this issue does not show up.

But this is an real issue and we need a fix anyway...=