digitalmars.D.learn - Weird LDC error on mac
Hey everyone!
After a long time, I wanted to build my Vibe project on Mac using
LDC, and I got weird compiling errors that made no sense and
didn't know how to debug or fix. Does anyone have any tips on how
I should make it work?
```
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
DtoOverloadedIntrinsicName
* template instance: llvm_bswap!uint
* template declaration: llvm_bswap(T)(T val) if
(__traits(isIntegral, T) && (T.sizeof >= 2))
* final intrinsic name: llvm.bswap.i32
DtoOverloadedIntrinsicName
* template instance: llvm_bswap!ulong
* template declaration: llvm_bswap(T)(T val) if
(__traits(isIntegral, T) && (T.sizeof >= 2))
* final intrinsic name: llvm.bswap.i64
import vibe.core.channel
(submodules/vibe-core/source/vibe/core/channel.d)
import std.zlib
(/opt/homebrew/Cellar/ldc/1.40.0/include/dlang/ldc/std/zlib.d)
import diet.html
(../../.dub/packages/diet-ng/1.8.1/diet-ng/source/diet/html.d)
import diet.defs
(../../.dub/packages/diet-ng/1.8.1/diet-ng/source/diet/defs.d)
import diet.internal.html
(../../.dub/packages/diet-ng/1.8.1/diet-ng/source/diet/internal/html.d)
import diet.input
(../../.dub/packages/diet-ng/1.8.1/diet-ng/source/diet/input.d)
import diet.parser
(../../.dub/packages/diet-ng/1.8.1/diet-ng/source/diet/parser.d)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
lowered this._data.refCountedPayload()._payload[] = value =>
_d_arraysetassign(this._data.refCountedPayload()._payload[],
value)
lowered slice[i..j] = value =>
_d_arraysetassign(slice[i..j], value)
lowered this._outer_[] = data =>
_d_arraysetctor(this._outer_[], data)
llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/opt/homebrew/Cellar/llvm/19.1.7_1/lib/libLLVM.dylib+0x4a12610)
(/opt/homebrew/Cellar/llvm/19.1.7_1/lib/libLLVM.dylib+0x4a129d0)
(/usr/lib/system/libsystem_platform.dylib+0x180482de4)
DsymbolSemanticVisitor::visit(UserAttributeDeclaration*)
(/opt/homebrew/Cellar/ldc/1.40.0/bin/ldc2+0x100008b64)
_D2rt6dmain212_d_run_main2UAAamPUQgZiZ6runAllMFZv
(/opt/homebrew/Cellar/ldc/1.40.0/bin/ldc2+0x1004c8f1c)
(/opt/homebrew/Cellar/ldc/1.40.0/bin/ldc2+0x1004c8b4c)
(/opt/homebrew/Cellar/ldc/1.40.0/bin/ldc2+0x10037a610)
Error ldc2 failed with exit code -5.
```
```
ldc2 --version
127 ✘
LDC - the LLVM D compiler (1.40.0):
based on DMD v2.110.0 and LLVM 19.1.6
built with LDC - the LLVM D compiler (1.40.0)
Default target: arm64-apple-darwin24.3.0
Host CPU: apple-m2
http://dlang.org - http://wiki.dlang.org/LDC
Registered Targets:
aarch64 - AArch64 (little endian)
aarch64_32 - AArch64 (little endian ILP32)
aarch64_be - AArch64 (big endian)
amdgcn - AMD GCN GPUs
arm - ARM
arm64 - ARM64 (little endian)
arm64_32 - ARM64 (little endian ILP32)
armeb - ARM (big endian)
avr - Atmel AVR Microcontroller
bpf - BPF (host endian)
bpfeb - BPF (big endian)
bpfel - BPF (little endian)
hexagon - Hexagon
lanai - Lanai
loongarch32 - 32-bit LoongArch
loongarch64 - 64-bit LoongArch
mips - MIPS (32-bit big endian)
mips64 - MIPS (64-bit big endian)
mips64el - MIPS (64-bit little endian)
mipsel - MIPS (32-bit little endian)
msp430 - MSP430 [experimental]
nvptx - NVIDIA PTX 32-bit
nvptx64 - NVIDIA PTX 64-bit
ppc32 - PowerPC 32
ppc32le - PowerPC 32 LE
ppc64 - PowerPC 64
ppc64le - PowerPC 64 LE
r600 - AMD GPUs HD2XXX-HD6XXX
riscv32 - 32-bit RISC-V
riscv64 - 64-bit RISC-V
sparc - Sparc
sparcel - Sparc LE
sparcv9 - Sparc V9
systemz - SystemZ
thumb - Thumb
thumbeb - Thumb (big endian)
ve - VE
wasm32 - WebAssembly 32-bit
wasm64 - WebAssembly 64-bit
x86 - 32-bit X86: Pentium-Pro and above
x86-64 - 64-bit X86: EM64T and AMD64
xcore - XCore
```
Mar 03
I managed to get a stack trace from my error:
```
core.exception.AssertError /Users/gedaiu/workspace/ldc/dmd/par
etimevisitor.d(20): Assertion failure
----------------
/tmp/ldc-20241231-7715-mkgqdh/ldc-1.40.0-src/runtime/druntime/src/
ore/exception.d:569 onAssertError [0x10083ccf3]
/tmp/ldc-20241231-7715-mkgqdh/ldc-1.40.0-src/runtime/druntime/src/
ore/exception.d:808 _d_assert [0x100899bf7]
/Users/gedaiu/workspace/ldc/dmd/parsetimevisitor.d:20
ParseTimeVisitor<ASTCodegen>::visit(Parameter*) [0x10001397f]
/Users/gedaiu/workspace/ldc/dmd/mtype.d:4354
Parameter::accept(Visitor*) [0x10003fd7f]
/Users/gedaiu/workspace/ldc/dmd/expressionsem.d:14145
dmd.expression.Expression
dmd.expressionsem.expressionSemantic(dmd.expression.Expression,
dmd.dscope.Scope*) [0x10003c5ff]
/Users/gedaiu/workspace/ldc/dmd/expressionsem.d:758 bool
dmd.expressionsem.arrayExpressionSemantic(dmd.expression.Expression[],
dmd.dscope.Scope*, bool) [0x1001e512b]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1938
DsymbolSemanticVisitor::visit(UserAttributeDeclaration*)
[0x100009a1b]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:138
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(UserAt
ributeDeclaration*) [0x10000997b]
/Users/gedaiu/workspace/ldc/dmd/attrib.d:1151
UserAttributeDeclaration::accept(Visitor*) [0x100324c17]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:3612 void
dmd.dsymbolsem.DsymbolSemanticVisitor.visit(dmd.dclass.ClassDeclaration).__lambda_L3612_C39!(dmd.dsymbol.Dsymbol).__lambda_L3612_C39(
md.dsymbol.Dsymbol) [0x1002722b3]
/Users/gedaiu/workspace/ldc/dmd/dsymbol.d:111 void
dmd.dsymbol.foreachDsymbol(dmd.root.array.Array!(dmd.dsymbol.Dsymbol).Array*,
void delegate(dmd.dsymbol.Dsymbol)) [0x100065773]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:3612
DsymbolSemanticVisitor::visit(ClassDeclaration*) [0x10001123b]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:192
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(ClassDeclaration*)
[0x10000edff]
/Users/gedaiu/workspace/ldc/dmd/dclass.d:958
ClassDeclaration::accept(Visitor*) [0x100042c47]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1987 void
dmd.dsymbolsem.DsymbolSemanticVisitor.visit(dmd.dmodule.Module).__lambda_L1984_C35!(dmd.dsymbol.Dsymbol).__lambda_L1984_C35(
md.dsymbol.Dsymbol) [0x10026bdfb]
/Users/gedaiu/workspace/ldc/dmd/dsymbol.d:111 void
dmd.dsymbol.foreachDsymbol(dmd.root.array.Array!(dmd.dsymbol.Dsymbol).Array*,
void delegate(dmd.dsymbol.Dsymbol)) [0x100065773]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1984
DsymbolSemanticVisitor::visit(Module*) [0x10000a013]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:154
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Module*)
[0x100009e03]
/Users/gedaiu/workspace/ldc/dmd/dmodule.d:1245
Module::accept(Visitor*) [0x100199d1b]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1625
DsymbolSemanticVisitor::visit(Import*) [0x1000084f3]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:115
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Import*)
[0x100007cf3]
/Users/gedaiu/workspace/ldc/dmd/dimport.d:181
Import::accept(Visitor*) [0x1002d16bf]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1987 void
dmd.dsymbolsem.DsymbolSemanticVisitor.visit(dmd.dmodule.Module).__lambda_L1984_C35!(dmd.dsymbol.Dsymbol).__lambda_L1984_C35(
md.dsymbol.Dsymbol) [0x10026bdfb]
/Users/gedaiu/workspace/ldc/dmd/dsymbol.d:111 void
dmd.dsymbol.foreachDsymbol(dmd.root.array.Array!(dmd.dsymbol.Dsymbol).Array*,
void delegate(dmd.dsymbol.Dsymbol)) [0x100065773]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1984
DsymbolSemanticVisitor::visit(Module*) [0x10000a013]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:154
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Module*)
[0x100009e03]
/Users/gedaiu/workspace/ldc/dmd/dmodule.d:1245
Module::accept(Visitor*) [0x100199d1b]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1625
DsymbolSemanticVisitor::visit(Import*) [0x1000084f3]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:115
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Import*)
[0x100007cf3]
/Users/gedaiu/workspace/ldc/dmd/dimport.d:181
Import::accept(Visitor*) [0x1002d16bf]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1987 void
dmd.dsymbolsem.DsymbolSemanticVisitor.visit(dmd.dmodule.Module).__lambda_L1984_C35!(dmd.dsymbol.Dsymbol).__lambda_L1984_C35(
md.dsymbol.Dsymbol) [0x10026bdfb]
/Users/gedaiu/workspace/ldc/dmd/dsymbol.d:111 void
dmd.dsymbol.foreachDsymbol(dmd.root.array.Array!(dmd.dsymbol.Dsymbol).Array*,
void delegate(dmd.dsymbol.Dsymbol)) [0x100065773]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1984
DsymbolSemanticVisitor::visit(Module*) [0x10000a013]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:154
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Module*)
[0x100009e03]
/Users/gedaiu/workspace/ldc/dmd/dmodule.d:1245
Module::accept(Visitor*) [0x100199d1b]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1625
DsymbolSemanticVisitor::visit(Import*) [0x1000084f3]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:115
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Import*)
[0x100007cf3]
/Users/gedaiu/workspace/ldc/dmd/dimport.d:181
Import::accept(Visitor*) [0x1002d16bf]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1987 void
dmd.dsymbolsem.DsymbolSemanticVisitor.visit(dmd.dmodule.Module).__lambda_L1984_C35!(dmd.dsymbol.Dsymbol).__lambda_L1984_C35(
md.dsymbol.Dsymbol) [0x10026bdfb]
/Users/gedaiu/workspace/ldc/dmd/dsymbol.d:111 void
dmd.dsymbol.foreachDsymbol(dmd.root.array.Array!(dmd.dsymbol.Dsymbol).Array*,
void delegate(dmd.dsymbol.Dsymbol)) [0x100065773]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1984
DsymbolSemanticVisitor::visit(Module*) [0x10000a013]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:154
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Module*)
[0x100009e03]
/Users/gedaiu/workspace/ldc/dmd/dmodule.d:1245
Module::accept(Visitor*) [0x100199d1b]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1625
DsymbolSemanticVisitor::visit(Import*) [0x1000084f3]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:115
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Import*)
[0x100007cf3]
/Users/gedaiu/workspace/ldc/dmd/dimport.d:181
Import::accept(Visitor*) [0x1002d16bf]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1987 void
dmd.dsymbolsem.DsymbolSemanticVisitor.visit(dmd.dmodule.Module).__lambda_L1984_C35!(dmd.dsymbol.Dsymbol).__lambda_L1984_C35(
md.dsymbol.Dsymbol) [0x10026bdfb]
/Users/gedaiu/workspace/ldc/dmd/dsymbol.d:111 void
dmd.dsymbol.foreachDsymbol(dmd.root.array.Array!(dmd.dsymbol.Dsymbol).Array*,
void delegate(dmd.dsymbol.Dsymbol)) [0x100065773]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:1984
DsymbolSemanticVisitor::visit(Module*) [0x10000a013]
/Users/gedaiu/workspace/ldc/driver/timetrace_sema.d:154
SemanticTimeTraceVisitor<DsymbolSemanticVisitor*>::visit(Module*)
[0x100009e03]
/Users/gedaiu/workspace/ldc/dmd/dmodule.d:1245
Module::accept(Visitor*) [0x100199d1b]
/Users/gedaiu/workspace/ldc/dmd/dsymbolsem.d:96 void
dmd.dsymbolsem.dsymbolSemantic(dmd.dsymbol.Dsymbol,
dmd.dscope.Scope*) [0x10004bae7]
/Users/gedaiu/workspace/ldc/dmd/main.d:643 mars_tryMain(Param&,
Array<char const*>&) [0x1001800e3]
/Users/gedaiu/workspace/ldc/driver/main.cpp:1232 cppmain()
[0x10062d547]
/Users/gedaiu/workspace/ldc/driver/main.d:27 _Dmain [0x1000248b7]
Process 91478 exited with status = 1 (0x00000001) ```
it looks like i hit an `assert(0)`:
```
void visit(AST.Parameter) { assert(0); }
```
Mar 03
Sergey <kornburn yandex.ru> On Monday, 3 March 2025 at 21:33:17 UTC, Bogdan wrote:I managed to get a stack trace from my error:I would suggest to post it either to LDC group or to LDC github issue, so Kinke and other LDC team can check it
Mar 03