Stack too deep error building a16z/cicada

[0xkarmacoma]

Building https://github.com/a16z/cicada @ dec37d732f8ef8a91119650c416ae9bfb531a64a:

 FOUNDRY_PROFILE=solx forge build
[⠊] Compiling...
[⠆] Compiling 23 files with Solc 0.8.29
[⠰] Solc 0.8.29 finished in 72.33s
Error: Compiler run failed:
Error: "/usr/local/bin/solx" subprocess failed without exit code:

LLVM ERROR: fun_finalizeVote: cannot dup 17-th stack item, %318.
Item it located too deep in the stack: [ %318 %54 %28 %30 %122 %60 RET %118 %22 %1 %21 %121 %119 %27 %26 %314 %656 ]
PLEASE submit a bug report to https://github.com/matter-labs/era-compiler-llvm/issues/ and include the crash backtrace.
Stack dump:
0.	Running pass 'Function Pass Manager' on module 'src/SemaphoreCicada.sol:SemaphoreCicada.runtime'.
1.	Running pass 'EVM backward propagation stackification' on function '@fun_finalizeVote'
--> src/SemaphoreCicada.sol:SemaphoreCicada

Error: "/usr/local/bin/solx" subprocess failed without exit code:

LLVM ERROR: fun_finalizeVote: cannot dup 17-th stack item, %318.
Item it located too deep in the stack: [ %318 %54 %28 %30 %122 %60 RET %118 %22 %1 %21 %121 %119 %27 %26 %314 %656 ]
PLEASE submit a bug report to https://github.com/matter-labs/era-compiler-llvm/issues/ and include the crash backtrace.
Stack dump:
0.	Running pass 'Function Pass Manager' on module 'test/EndToEndTest.t.sol:VoteWrapper.runtime'.
1.	Running pass 'EVM backward propagation stackification' on function '@fun_finalizeVote'
--> test/EndToEndTest.t.sol:VoteWrapper

Error: "/usr/local/bin/solx" subprocess failed without exit code:

LLVM ERROR: fun_mulMod: cannot dup 17-th stack item, %24.
Item it located too deep in the stack: [ %0 RET %1 %4 %1 %24 %23 %1 %16 %14 %16 %3 %21 %23 %3 %1 %16 %1 %14 %14 %21 %16 ]
PLEASE submit a bug report to https://github.com/matter-labs/era-compiler-llvm/issues/ and include the crash backtrace.
Stack dump:
0.	Running pass 'Function Pass Manager' on module 'test/LibUint1024.t.sol:LibUint1024Test.runtime'.
1.	Running pass 'EVM backward propagation stackification' on function '@fun_mulMod'
--> test/LibUint1024.t.sol:LibUint1024Test

Error: "/usr/local/bin/solx" subprocess failed without exit code:

LLVM ERROR: fun_mulMod: cannot dup 17-th stack item, %24.
Item it located too deep in the stack: [ %0 RET %1 %4 %1 %24 %23 %1 %16 %14 %16 %3 %21 %23 %3 %1 %16 %1 %14 %14 %21 %16 ]
PLEASE submit a bug report to https://github.com/matter-labs/era-compiler-llvm/issues/ and include the crash backtrace.
Stack dump:
0.	Running pass 'Function Pass Manager' on module 'test/VerifyBallot.t.sol:VoteWrapper.runtime'.
1.	Running pass 'EVM backward propagation stackification' on function '@fun_mulMod'
--> test/VerifyBallot.t.sol:VoteWrapper

Error: "/usr/local/bin/solx" subprocess failed without exit code:

LLVM ERROR: fun_mulMod: cannot dup 17-th stack item, %24.
Item it located too deep in the stack: [ %0 RET %1 %4 %1 %24 %23 %1 %16 %14 %16 %3 %21 %23 %3 %1 %16 %1 %14 %14 %21 %16 ]
PLEASE submit a bug report to https://github.com/matter-labs/era-compiler-llvm/issues/ and include the crash backtrace.
Stack dump:
0.	Running pass 'Function Pass Manager' on module 'test/VerifySolution.t.sol:VoteWrapper.runtime'.
1.	Running pass 'EVM backward propagation stackification' on function '@fun_mulMod'
--> test/VerifySolution.t.sol:VoteWrapper

Version info:

 solx --version
solx, eXtremely optimizing SOLidity compiler v0.1.0-alpha.2, LLVM revision: v1.0.2, LLVM build: 9ec5f5291166f06135b0de25a6bc45233826a740
Version: 0.8.29+commit.5549c873.Darwin.appleclang

[akiramenai]

Thanks for the report, @0xkarmacoma!
We just published a work-in-progress PR that will address stack-too-deep issues in solx. We expect it to land in 2-4 weeks.