[llvm-dev] [LLD] [WASM] wasm/function-index.test failing

[David Greene via llvm-dev]

I'm seeing the following fail on Linux x86-64, for the last couple weeks
at least.  This is from 'ninja check-all'.

                                 -David

FAIL: lld :: wasm/function-index.test (1941 of 1955)
******************** TEST 'lld :: wasm/function-index.test' FAILED ********************
Script:
--
: 'RUN: at line 1';   /build/x86_64/bin/llc -filetype=obj /src/lld/test/wasm/Inputs/ret32.ll -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
: 'RUN: at line 2';   /build/x86_64/bin/llc -filetype=obj /src/lld/test/wasm/Inputs/ret64.ll -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
: 'RUN: at line 3';   /build/x86_64/bin/wasm-ld -r -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
: 'RUN: at line 4';   /build/x86_64/bin/obj2yaml /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm | /build/x86_64/bin/FileCheck /src/lld/test/wasm/function-index.test
--
Exit Code: 139

Command Output (stderr):
--
+ : 'RUN: at line 1'
+ /build/x86_64/bin/llc -filetype=obj /src/lld/test/wasm/Inputs/ret32.ll -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
+ : 'RUN: at line 2'
+ /build/x86_64/bin/llc -filetype=obj /src/lld/test/wasm/Inputs/ret64.ll -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
+ : 'RUN: at line 3'
+ /build/x86_64/bin/wasm-ld -r -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
Stack dump:
0.	Program arguments: /build/x86_64/bin/wasm-ld -r -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o 
 #0 0x0000000000571d1a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/build/x86_64/bin/wasm-ld+0x571d1a)
 #1 0x000000000056f538 llvm::sys::RunSignalHandlers() (/build/x86_64/bin/wasm-ld+0x56f538)
 #2 0x000000000056f64c SignalHandler(int) (/build/x86_64/bin/wasm-ld+0x56f64c)
 #3 0x00007f7578656b00 __restore_rt (/lib64/libpthread.so.0+0x10b00)
 #4 0x00000000005b618b llvm::SpecificBumpPtrAllocator<std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer> > >::DestroyAll() (/build/x86_64/bin/wasm-ld+0x5b618b)
 #5 0x000000000091af30 lld::freeArena() (/build/x86_64/bin/wasm-ld+0x91af30)
 #6 0x00000000007b9e5c lld::wasm::link(llvm::ArrayRef<char const*>, bool, llvm::raw_ostream&) (/build/x86_64/bin/wasm-ld+0x7b9e5c)
 #7 0x00000000004a67cf main (/build/x86_64/bin/wasm-ld+0x4a67cf)
 #8 0x00007f7576e656e5 __libc_start_main (/lib64/libc.so.6+0x206e5)
 #9 0x0000000000557729 _start /home/abuild/rpmbuild/BUILD/glibc-2.22/csu/../sysdeps/x86_64/start.S:121:0
/build/x86_64/tools/lld/test/wasm/Output/function-index.test.script: line 4: 368695 Segmentation fault      /build/x86_64/bin/wasm-ld -r -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o

                                        -David