[llvm-bugs] [Bug 48650] New: [Sparc] Stage2 fails on Linux CI with "error: cannot apply asm label to function after its first use"

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48650

            Bug ID: 48650
           Summary: [Sparc] Stage2 fails on Linux CI with "error: cannot
                    apply asm label to function after its first use"
           Product: libraries
           Version: trunk
          Hardware: PC
               URL: http://lab.llvm.org:8014/#/builders/113/builds/37
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: Sparc
          Assignee: unassignedbugs at nondot.org
          Reporter: glaubitz at physik.fu-berlin.de
                CC: jrtc27 at jrtc27.com, llvm-bugs at lists.llvm.org,
                    ro at gcc.gnu.org

The stage2 build fails on clang-sparc64-linux-multistage with:

FAILED:
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizerNoHooks.sparc.dir/sanitizer_stackdepot.cpp.o 
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux-multistage/stage1.install/bin/clang++
-DHAVE_RPC_XDR_H=1 -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
-Iprojects/compiler-rt/lib/sanitizer_common
-I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux-multistage/llvm/compiler-rt/lib/sanitizer_common
-Iinclude
-I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux-multistage/llvm/llvm/include
-I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux-multistage/llvm/compiler-rt/lib/sanitizer_common/..
-fPIC -fvisibility-inlines-hidden -Werror=date-time
-Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter
-Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic
-Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default
-Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor
-Wsuggest-override -Wstring-conversion -fdiagnostics-color -ffunction-sections
-fdata-sections -Wall -std=c++14 -Wno-unused-parameter -O3   -m32 -fPIC
-fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables
-fno-stack-protector -fno-sanitize=safe-stack -fvisibility=hidden -fno-lto -O3
-gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions
-nostdinc++ -fno-rtti -Wframe-larger-than=570 -Wglobal-constructors
-DSANITIZER_SUPPORTS_WEAK_HOOKS=0 -UNDEBUG -std=c++14 -MD -MT
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizerNoHooks.sparc.dir/sanitizer_stackdepot.cpp.o
-MF
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizerNoHooks.sparc.dir/sanitizer_stackdepot.cpp.o.d
-o
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizerNoHooks.sparc.dir/sanitizer_stackdepot.cpp.o
-c
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux-multistage/llvm/compiler-rt/lib/sanitizer_common/sanitizer_stackdepot.cpp
In file included from
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux-multistage/llvm/compiler-rt/lib/sanitizer_common/sanitizer_stackdepot.cpp:17:
In file included from
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux-multistage/llvm/compiler-rt/lib/sanitizer_common/sanitizer_stackdepotbase.h:16:
In file included from /usr/include/stdio.h:870:
/usr/include/bits/stdio-ldbl.h:26:20: error: cannot apply asm label to function
after its first use
__LDBL_REDIR_DECL (vfprintf)
~~~~~~~~~~~~~~~~~~~^~~~~~~~~
/usr/include/sys/cdefs.h:467:26: note: expanded from macro '__LDBL_REDIR_DECL'
  extern __typeof (name) name __asm (__ASMNAME ("__nldbl_" #name));
                         ^           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.

See: http://lab.llvm.org:8014/#/builders/113/builds/37

The issue has existed for a while but I never actually reported it.

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