https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116373
Bug ID: 116373
Summary: [14/15 regression] ICE in dmd.expressionsem.resolveLoc
since f204359931866b917856fc959c70dbf55f28c14d
Product: gcc
Version: 14.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: d
Assignee: ibuclaw at gdcproject dot org
Reporter: a.horodniceanu at proton dot me
Target Milestone: ---
The following code produces an ICE beginning with commit
f204359931866b917856fc959c70dbf55f28c14d:
----
int[] x;
void foo (int[] y = x[]) {}
void main () {
foo();
}
----
The error is:
---
$ /usr/x86_64-pc-linux-gnu/gcc-bin/14/gdc /tmp/repro.d -freport-bug
d21: internal compiler error: Segmentation fault
0x5620a9cbfb94 internal_error(char const*, ...)
???:0
0x5620a83fef9a
_D3dmd13expressionsem10resolveLocFCQBh10expression10ExpressionKxSQCl8location3LocPSQDd6dscope5ScopeZQCo
???:0
0x5620a83ff386
_D3dmd13expressionsem10resolveLocFCQBh10expression10ExpressionKxSQCl8location3LocPSQDd6dscope5ScopeZQCo
???:0
0x5620a8410b07
_D3dmd13expressionsem18functionParametersFKxSQBr8location3LocPSQCj6dscope5ScopeCQDa5mtype12TypeFunctionCQDy10expression10ExpressionCQFaQCa4TypeSQFmQBo12ArgumentListCQGh4func15FuncDeclarationPQCiPQDoZb
???:0
0x5620a841edff ExpressionSemanticVisitor::visit(CallExp*)
???:0
0x5620a83f9d43
_D3dmd13expressionsem18expressionSemanticFCQBp10expression10ExpressionPSQCs6dscope5ScopeZQBv
???:0
0x5620a84dd84b
_D3dmd12statementsem17statementSemanticFCQBn9statement9StatementPSQCm6dscope5ScopeZQBr
???:0
0x5620a84b8b08 Semantic3Visitor::visit(FuncDeclaration*)
???:0
0x5620a84b6a0f Semantic3Visitor::visit(Module*)
???:0
0x5620a84b6f9a _D3dmd9semantic3QkFCQs7dsymbol7DsymbolPSQBm6dscope5ScopeZv
???:0
Please submit a full bug report, with preprocessed source.
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
---
The demangled output:
----
d21: internal compiler error: Segmentation fault
0x56495f42ab94 internal_error(char const*, ...)
???:0
0x56495db69f9a dmd.expressionsem.resolveLoc(dmd.expression.Expression, ref
const(dmd.location.Loc), dmd.dscope.Scope*)
???:0
0x56495db6a386 dmd.expressionsem.resolveLoc(dmd.expression.Expression, ref
const(dmd.location.Loc), dmd.dscope.Scope*)
???:0
0x56495db7bb07 dmd.expressionsem.functionParameters(ref
const(dmd.location.Loc), dmd.dscope.Scope*, dmd.mtype.TypeFunction,
dmd.expression.Expression, dmd.mtype.Type, dmd.expression.ArgumentList,
dmd.func.FuncDeclaration, dmd.mtype.Type*, dmd.expression.Expression*)
???:0
0x56495db89dff ExpressionSemanticVisitor::visit(CallExp*)
???:0
0x56495db64d43 dmd.expressionsem.expressionSemantic(dmd.expression.Expression,
dmd.dscope.Scope*)
???:0
0x56495dc4884b dmd.statementsem.statementSemantic(dmd.statement.Statement,
dmd.dscope.Scope*)
???:0
0x56495dc23b08 Semantic3Visitor::visit(FuncDeclaration*)
???:0
0x56495dc21a0f Semantic3Visitor::visit(Module*)
???:0
0x56495dc21f9a dmd.semantic3.semantic3(dmd.dsymbol.Dsymbol, dmd.dscope.Scope*)
???:0
Please submit a full bug report, with preprocessed source.
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
----
I've used the following gcc version to get the trace:
----
gdc (Gentoo Hardened 14.2.1_p20240803 p4) 14.2.1 20240803
Copyright (C) 2024 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
----
I've initially got the error trying to compile
https://github.com/CyberShadow/btdu which depends on
https://github.com/CyberShadow/d-btrfs which contains such a default function
argument expression.
