Reland "[CodeGen] Keep track info of lazy-emitted symbols in ModuleBuilder"
authorJun Zhang <jun@junz.org>
Tue, 14 Jun 2022 09:36:41 +0000 (17:36 +0800)
committerJun Zhang <jun@junz.org>
Tue, 14 Jun 2022 10:36:03 +0000 (18:36 +0800)
commit781ee538da1855876b085989a37ec959e3f2ecd1
tree9af25065d90663237fc7ecf096d431db96080387
parent2c4e44752d1dd319e0dedaefac1957d70ecb3c9a
Reland "[CodeGen] Keep track info of lazy-emitted symbols in ModuleBuilder"

This reverts commits:
d3ddc251acae631bf5ab4da13878f7e8b5b5a451
d90eecff5c9e7e9f8263de6cd72d70322400829f

This relands below commit with asan fix:

The intent of this patch is to selectively carry some states over to
the Builder so we won't lose the information of the previous symbols.

This used to be several downstream patches of Cling, it aims to fix
errors in Clang Interpreter when trying to use inline functions.
Before this patch:

clang-repl> inline int foo() { return 42;}
clang-repl> int x = foo();

JIT session error: Symbols not found: [ _Z3foov ]
error: Failed to materialize symbols:
{ (main, { x, $.incr_module_1.__inits.0, __orc_init_func.incr_module_1 }) }

Co-authored-by: Axel Naumann <Axel.Naumann@cern.ch>
Signed-off-by: Jun Zhang <jun@junz.org>
Differential Revision: https://reviews.llvm.org/D127730
clang/lib/CodeGen/CodeGenModule.h
clang/lib/CodeGen/ModuleBuilder.cpp
clang/test/Interpreter/execute.cpp