Commit Graph

5 Commits

Author SHA1 Message Date
Peter Collingbourne 2849c4e841 CodeGen: New vtable group representation: struct of vtable arrays.
In a future change, this representation will allow us to use the new inrange
annotation on getelementptr to allow the optimizer to split vtable groups.

Differential Revision: https://reviews.llvm.org/D22296

llvm-svn: 289584
2016-12-13 20:40:39 +00:00
Rafael Espindola 4af2cdb732 Also put vtables in a comdat when rtti is disabled.
llvm-svn: 226325
2015-01-16 21:41:44 +00:00
David Majnemer 65f8732c14 MS ABI: -fno-rtti-data wasn't data-free enough
While -fno-rtti-data would correctly avoid referencing the RTTI complete
object locator in the VFTable itself, it would emit them anyway.

llvm-svn: 213841
2014-07-24 06:09:19 +00:00
NAKAMURA Takumi 5db0b38c38 clang/test/CodeGenCXX/microsoft-no-rtti-data.cpp: Relax an expression for -Asserts.
llvm-svn: 212144
2014-07-01 23:33:03 +00:00
David Majnemer f607234fde Driver: Handle /GR- in a compatible way with MSVC
There are slight differences between /GR- and -fno-rtti which made
mapping one to the other inappropriate.

-fno-rtti disables dynamic_cast, typeid, and does not emit RTTI related
information for the v-table.

/GR- does not generate complete object locators and thus will not
reference them in vftables.  However, constructs like dynamic_cast and
typeid are permitted.

This should bring our implementation of RTTI up to semantic parity with
MSVC modulo bugs.

llvm-svn: 212138
2014-07-01 22:24:56 +00:00