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Date:      Mon, 20 Apr 2020 07:41:57 +0000
From:      bugzilla-noreply@freebsd.org
To:        toolchain@FreeBSD.org
Subject:   [Bug 245745] CURRENT clang crashes in poudriere building devel/simdjson
Message-ID:  <bug-245745-29464-Rr4Oh1B3wA@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-245745-29464@https.bugs.freebsd.org/bugzilla/>
References:  <bug-245745-29464@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D245745

Mark Millard <marklmi26-fbsd@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marklmi26-fbsd@yahoo.com

--- Comment #1 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Lo=C3=AFc Bartoletti from comment #0)

I tried the .sh and .cpp on a ThreadRipper 1950X and got
the crash in my head -r359427 context. gdb reports:

(gdb) bt
#0  thr_kill () at thr_kill.S:4
#1  0x000000080531ff14 in __raise (s=3D6) at /usr/src/lib/libc/gen/raise.c:=
52
#2  0x0000000805293f66 in abort () at /usr/src/lib/libc/stdlib/abort.c:79
#3  0x000000080530e1e1 in __assert (func=3D<optimized out>, file=3D<optimiz=
ed out>,
line=3D<optimized out>, failedexpr=3D<optimized out>) at
/usr/src/lib/libc/gen/assert.c:51
#4  0x0000000001969ee8 in Init () at
/usr/src/contrib/llvm-project/clang/include/clang/AST/GlobalDecl.h:45
#5  0x000000000296faa3 in GlobalDecl () at
/usr/src/contrib/llvm-project/clang/include/clang/AST/GlobalDecl.h:56
#6  checkTargetFeatures () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp:2328
#7  0x0000000002b01d7f in EmitCall () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGCall.cpp:3841
#8  0x0000000002ad2546 in EmitCall () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenFunction.h:3618
#9  EmitCXXConstructorCall () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGClass.cpp:2160
#10 0x0000000002ad1c6b in EmitCXXConstructorCall () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGClass.cpp:2074
#11 0x0000000002a58637 in EmitCXXConstructExpr () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGExprCXX.cpp:649
#12 0x0000000002a63a27 in Visit () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGExprAgg.cpp:43
#13 0x0000000002a6001a in Visit () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGExprAgg.cpp:106
#14 EmitAggExpr () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGExprAgg.cpp:1848
#15 0x0000000002ab20ea in EmitExprAsInit () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGDecl.cpp:1902
#16 0x0000000002aaf785 in EmitAutoVarInit () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGDecl.cpp:1842
#17 0x0000000002aab485 in EmitAutoVarDecl () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGDecl.cpp:1283
#18 EmitVarDecl () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGDecl.cpp:195
#19 0x0000000002aab0fc in EmitDecl () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGDecl.cpp:139
#20 0x00000000029b242b in EmitDeclStmt () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGStmt.cpp:1151
#21 0x00000000029aa085 in EmitSimpleStmt () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGStmt.cpp:369
#22 0x00000000029a95a8 in EmitStmt () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGStmt.cpp:50
#23 0x00000000029b2f5c in EmitCompoundStmtWithoutScope () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CGStmt.cpp:444
#24 0x000000000296b910 in EmitFunctionBody () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp:1146
#25 GenerateCode () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenFunction.cpp:1311
#26 0x0000000002854a81 in EmitGlobalFunctionDefinition () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenModule.cpp:4467
#27 0x000000000284e378 in EmitGlobalDefinition () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenModule.cpp:2847
#28 0x0000000002857be9 in EmitTopLevelDecl () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenModule.cpp:5272
#29 0x000000000285b8cb in EmitDeclContext () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenModule.cpp:5258
#30 0x000000000285b8cb in EmitDeclContext () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenModule.cpp:5258
#31 0x00000000019d171f in HandleTopLevelDecl () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/ModuleBuilder.cpp:170
#32 0x00000000019706c7 in HandleTopLevelDecl () at
/usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:214
#33 0x000000000265fa13 in ParseAST () at
/usr/src/contrib/llvm-project/clang/lib/Parse/ParseAST.cpp:162
#34 0x0000000001f1874f in Execute () at
/usr/src/contrib/llvm-project/clang/lib/Frontend/FrontendAction.cpp:936
#35 0x000000000314da33 in ExecuteAction () at
/usr/src/contrib/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:965
#36 0x0000000001931023 in ExecuteCompilerInvocation () at
/usr/src/contrib/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocat=
ion.cpp:290
#37 0x00000000019220a7 in cc1_main () at
/usr/src/contrib/llvm-project/clang/tools/driver/cc1_main.cpp:240
#38 0x000000000192eaaf in ExecuteCC1Tool () at
/usr/src/contrib/llvm-project/clang/tools/driver/driver.cpp:329
#39 0x000000000192e76e in main () at
/usr/src/contrib/llvm-project/clang/tools/driver/driver.cpp:403

(gdb) up 4
#4  0x0000000001969ee8 in Init () at
/usr/src/contrib/llvm-project/clang/include/clang/AST/GlobalDecl.h:45
45          assert(!isa<CXXConstructorDecl>(D) && "Use other ctor with ctor
decls!");
(gdb) list
40      class GlobalDecl {
41        llvm::PointerIntPair<const Decl *, 2> Value;
42        unsigned MultiVersionIndex =3D 0;
43=20=20=20=20=20=20
44        void Init(const Decl *D) {
45          assert(!isa<CXXConstructorDecl>(D) && "Use other ctor with ctor
decls!");
46          assert(!isa<CXXDestructorDecl>(D) && "Use other ctor with dtor
decls!");
47=20=20=20=20=20=20
48          Value.setPointer(D);
49        }
(gdb) up
#5  0x000000000296faa3 in GlobalDecl () at
/usr/src/contrib/llvm-project/clang/include/clang/AST/GlobalDecl.h:56
56          Init(D);
. . .
(gdb) list -20
36      /// GlobalDecl - represents a global declaration. This can either b=
e a
37      /// CXXConstructorDecl and the constructor type (Base, Complete).
38      /// a CXXDestructorDecl and the destructor type (Base, Complete) or
39      /// a VarDecl, a FunctionDecl or a BlockDecl.
40      class GlobalDecl {
41        llvm::PointerIntPair<const Decl *, 2> Value;
42        unsigned MultiVersionIndex =3D 0;
43=20=20=20=20=20=20
44        void Init(const Decl *D) {
45          assert(!isa<CXXConstructorDecl>(D) && "Use other ctor with ctor
decls!");
(gdb)=20
46          assert(!isa<CXXDestructorDecl>(D) && "Use other ctor with dtor
decls!");
47=20=20=20=20=20=20
48          Value.setPointer(D);
49        }
50=20=20=20=20=20=20
51      public:
52        GlobalDecl() =3D default;
53        GlobalDecl(const VarDecl *D) { Init(D);}
54        GlobalDecl(const FunctionDecl *D, unsigned MVIndex =3D 0)
55            : MultiVersionIndex(MVIndex) {
(gdb)=20
56          Init(D);
57        }
58        GlobalDecl(const BlockDecl *D) { Init(D); }
59        GlobalDecl(const CapturedDecl *D) { Init(D); }
60        GlobalDecl(const ObjCMethodDecl *D) { Init(D); }
61        GlobalDecl(const OMPDeclareReductionDecl *D) { Init(D); }
62        GlobalDecl(const OMPDeclareMapperDecl *D) { Init(D); }
63        GlobalDecl(const CXXConstructorDecl *D, CXXCtorType Type) : Value=
(D,
Type) {}
64        GlobalDecl(const CXXDestructorDecl *D, CXXDtorType Type) : Value(=
D,
Type) {}
65        GlobalDecl(const VarDecl *D, DynamicInitKind StubKind)

I do not have access to an Intel context to try.

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