Building rust/src/rt/rust_try.ll fails when building for arm-apple-darwin

[mz2]

/Users/mz2/rust/build_ios/x86_64-apple-darwin/llvm/Release+Asserts/bin/llc -arm-enable-ehabi -arm-enable-ehabi-descriptors -filetype=obj -mtriple=arm-apple-darwin -relocation-model=pic -o arm-apple-darwin/rt/stage2/rust_try.o /Users/mz2/rust/src/rt/rust_try.ll
    Assertion failed: (TargetStreamer), function getTargetStreamer, file /Users/mz2/rust/src/llvm/include/llvm/MC/MCStreamer.h, line 173.
    0  llc                      0x00000001089cc2e8 llvm::sys::PrintStackTrace(__sFILE*) + 40
    1  llc                      0x00000001089cc7e4 SignalHandler(int) + 548
    2  libsystem_platform.dylib 0x00007fff847ab5aa _sigtramp + 26
    3  libsystem_platform.dylib 000000000000000000 _sigtramp + 2072332912
    4  llc                      0x00000001089cc5a6 abort + 22
    5  llc                      0x00000001089cc581 __assert_rtn + 81
    6  llc                      0x00000001081e80f6 llvm::ARMAsmPrinter::EmitUnwindingInstruction(llvm::MachineInstr const*) + 1462
    7  llc                      0x00000001081ebd76 llvm::ARMAsmPrinter::EmitInstruction(llvm::MachineInstr const*) + 118
    8  llc                      0x0000000108524bd9 llvm::AsmPrinter::EmitFunctionBody() + 3737
    9  llc                      0x00000001081e4788 llvm::ARMAsmPrinter::runOnMachineFunction(llvm::MachineFunction&) + 264
    10 llc                      0x00000001085f712d llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 125
    11 llc                      0x00000001088cd01b llvm::FPPassManager::runOnFunction(llvm::Function&) + 347
    12 llc                      0x00000001088cd2ab llvm::FPPassManager::runOnModule(llvm::Module&) + 43
    13 llc                      0x00000001088cd889 llvm::legacy::PassManagerImpl::run(llvm::Module&) + 1081
    14 llc                      0x00000001088cdc9d llvm::legacy::PassManager::run(llvm::Module&) + 13
    15 llc                      0x00000001080a8d8a main + 5002
    16 libdyld.dylib            0x00007fff845e25fd start + 1
    Stack dump:
    0.  Program arguments: /Users/mz2/rust/build_ios/x86_64-apple-darwin/llvm/Release+Asserts/bin/llc -arm-enable-ehabi -arm-enable-ehabi-descriptors -filetype=obj -mtriple=arm-apple-darwin -relocation-model=pic -o arm-apple-darwin/rt/stage2/rust_try.o /Users/mz2/rust/src/rt/rust_try.ll
    1.  Running pass 'Function Pass Manager' on module '/Users/mz2/rust/src/rt/rust_try.ll'.
    2.  Running pass 'ARM Assembly / Object Emitter' on function '@rust_try'
    make: *** [arm-apple-darwin/rt/stage2/rust_try.o] Illegal instruction: 4

[mz2]

This is another iOS building related issue

[flaper87]

Hey, thanks! Could you please edit the issue and put the report in a code section? https://help.github.com/articles/github-flavored-markdown#fenced-code-blocks

that should make it more readable.

[kud1ing]

I can reproduce it. It's an error i have not encountered before.

[mz2]

@flaper87 oops, looks like someone already corrected the reformatting (thanks!)

Also, just to give more detail, this happens at least with commit 53733c8, when configuring & compiling with "../configure --target=arm-apple-darwin && make" on OSX (Xcode 5, OSX Mavericks). The same does not happen with x86_64 darwin.

[alexcrichton]

I'm building a rebased LLVM to see if LLVM master has fixed this.

[kud1ing]

@alexcrichton: Thanks. Can you also tag this issue with "A-iOS"?

[alexcrichton]

Sadly the abort is still there, although I think it's somewhere else now?

[~/code/rust2[master]] $ ./x86_64-apple-darwin/llvm/Release+Asserts/bin/llc -mtriple=arm-apple-darwin ./src/rt/rust_try.ll -filetype=obj -arm-enable-ehabi -arm-enable-ehabi-descriptors     [alex@rhea] │
0  llc                      0x000000010526d248 llvm::sys::PrintStackTrace(__sFILE*) + 40                                                                                                                 │
1  llc                      0x000000010526d744 SignalHandler(int) + 548                                                                                                                                  │
2  libsystem_platform.dylib 0x00007fff889795aa _sigtramp + 26                                                                                                                                            │
3  llc                      0x000000010525e488 llvm::FoldingSetImpl::FindNodeOrInsertPos(llvm::FoldingSetNodeID const&, void*&) + 72                                                                     │
4  llc                      0x0000000104a7bbd3 llvm::ARMAsmPrinter::EmitInstruction(llvm::MachineInstr const*) + 131                                                                                     │
5  llc                      0x0000000104dc1459 llvm::AsmPrinter::EmitFunctionBody() + 3657                                                                                                               │
6  llc                      0x0000000104a74758 llvm::ARMAsmPrinter::runOnMachineFunction(llvm::MachineFunction&) + 264                                                                                   │
7  llc                      0x0000000104e9055d llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 125                                                                                           │
8  llc                      0x000000010516d21b llvm::FPPassManager::runOnFunction(llvm::Function&) + 347                                                                                                 │
9  llc                      0x000000010516d4ab llvm::FPPassManager::runOnModule(llvm::Module&) + 43                                                                                                      │
10 llc                      0x000000010516da89 llvm::legacy::PassManagerImpl::run(llvm::Module&) + 1081                                                                                                  │
11 llc                      0x000000010516de9d llvm::legacy::PassManager::run(llvm::Module&) + 13                                                                                                        │
12 llc                      0x000000010493518a main + 5002                                                                                                                                               │
13 libdyld.dylib            0x00007fff8dee55fd start + 1                                                                                                                                                 │
14 libdyld.dylib            0x0000000000000006 start + 1913760266                                                                                                                                        │
Stack dump:                                                                                                                                                                                              │
0.      Program arguments: ./x86_64-apple-darwin/llvm/Release+Asserts/bin/llc -mtriple=arm-apple-darwin ./src/rt/rust_try.ll -filetype=obj -arm-enable-ehabi -arm-enable-ehabi-descriptors               │
1.      Running pass 'Function Pass Manager' on module './src/rt/rust_try.ll'.                                                                                                                           │
2.      Running pass 'ARM Assembly / Object Emitter' on function '@rust_try'                                                                                                                             │
zsh: segmentation fault  ./x86_64-apple-darwin/llvm/Release+Asserts/bin/llc -mtriple=arm-apple-darwin                                                                                                    │

[kud1ing]

llvm-mirror/llvm@e99ebe7 removed the assertion that is triggered in our Master.

[kud1ing]

Likely fixed by #14715

[steveklabnik]

If #14715 didn't fix this, someone let me know. It's been quite a while since anyone has said anything here.