commit	3fbfa9c40377f1af163070dd4a44d1b39dd661a4	[log] [tgz]
author	George Burgess IV <george.burgess.iv@gmail.com>	Mon Jul 09 22:21:16 2018 +0000
committer	George Burgess IV <george.burgess.iv@gmail.com>	Mon Jul 09 22:21:16 2018 +0000
tree	1c42e650b87f8e82a706c668db994220c4494590
parent	87a615d6fa6add8f35240b4c288a4cef3bc2f0fc [diff]

Make llvm.objectsize more conservative with null

In non-zero address spaces, we were reporting that an object at `null`
always occupies zero bytes. This is incorrect in many cases, so just
return `unknown` in those cases for now.

Differential Revision: https://reviews.llvm.org/D48860

llvm-svn: 336611

llvm/docs/LangRef.rst[diff]
llvm/lib/Analysis/MemoryBuiltins.cpp[diff]
llvm/test/Transforms/CodeGenPrepare/basic.ll[diff]
llvm/test/Transforms/InstCombine/objsize.ll[diff]

4 files changed

tree: 1c42e650b87f8e82a706c668db994220c4494590

clang/
clang-tools-extra/
compiler-rt/
debuginfo-tests/
libclc/
libcxx/
libcxxabi/
libunwind/
lld/
lldb/
llgo/
llvm/
openmp/
parallel-libs/
polly/
README.md

README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.