commit	959ef1685979e96a745ac20f1b34ccd080656cb2	[log] [tgz]
author	Rong Xu <xur@google.com>	Thu Apr 11 20:54:17 2019 +0000
committer	Rong Xu <xur@google.com>	Thu Apr 11 20:54:17 2019 +0000
tree	9cc1228f6ddb12ed122ab2201db9b46c1e2a65ca
parent	a318a7f6651e931bd947ec9ee0b8b91ca2107aea [diff]

[PGO] Better handling of profile hash mismatch

We currently assume profile hash conflicts will be caught by an upfront
check and we assert for the cases that escape the check. The assumption
is not always true as there are chances of conflict. This patch prints
a warning and skips annotating the function for the escaped cases,.

Differential Revision: https://reviews.llvm.org/D60154

llvm-svn: 358225

llvm/lib/Transforms/Instrumentation/PGOInstrumentation.cpp[diff]
llvm/test/Transforms/PGOProfile/Inputs/select_hash_conflict.proftext[Added - diff]
llvm/test/Transforms/PGOProfile/select_hash_conflict.ll[Added - diff]

3 files changed

tree: 9cc1228f6ddb12ed122ab2201db9b46c1e2a65ca

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

README.md

The LLVM Compiler Infrastructure

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