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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/100340] Bootstrap fails with Clang 12.0.5 (XCode 12.5)
Date: Wed, 27 Jul 2022 18:18:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100340

--- Comment #37 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #36)
> Note that the solution to this has caused downstream MacPorts bug 65236:
> https://trac.macports.org/ticket/65236

the macports ticket does not contain enough information to figure out the
problem ...=20

I build and test regularly on Darwin9-21 and have used a range of installed
Xcode CLT:

e.g. here's the latest I have:

gcc/as -arch x86_64 -v -mmacosx-version-min=3D12.0 -mllvm
-x86-pad-for-align=3Dfalse -force_cpusubtype_ALL -o /Volumes/ramdisk/ccuqye=
hz.o
/Volumes/ramdisk/ccN3ilQO.s
Apple clang version 13.1.6 (clang-1316.0.21.2.5)
Target: x86_64-apple-darwin21.6.0
Thread model: posix
InstalledDir: /Users/Shared/XC/13.4/CommandLineTools/usr/bin
 "/Users/Shared/XC/13.4/CommandLineTools/usr/bin/clang" -cc1as -triple
x86_64-apple-macosx12.0.0 -filetype obj -main-file-name ccN3ilQO.s -target-=
cpu
penryn -fdebug-compilation-dir=3D/scratch/12-mon/gcc-master -dwarf-debug-pr=
oducer
"Apple clang version 13.1.6 (clang-1316.0.21.2.5)" -dwarf-version=3D4
-mrelocation-model pic --mrelax-relocations -mllvm -x86-pad-for-align=3Dfal=
se
-mllvm -disable-aligned-alloc-awareness=3D1 -o /Volumes/ramdisk/ccuqyehz.o
/Volumes/ramdisk/ccN3ilQO.s

works fine (i.e the assembler is accepting the flag) .. so I am not sure wh=
ere
the problem is arising in the bias stuff.

Perhaps, by some strange mechanism, the cctools assembler is being invoked =
?=