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| author | Mircea Trofin <mtrofin@google.com> | 2018-12-13 19:40:59 +0000 |
|---|---|---|
| committer | Mircea Trofin <mtrofin@google.com> | 2018-12-13 19:40:59 +0000 |
| commit | 41c729e78ec61f47c9b44978a58b23120347d18f (patch) | |
| tree | 747ea86232f6cfed8117fc71dcb89a589d9cf627 /llvm/test/Bitcode/thinlto-function-summary-callgraph-pgo.ll | |
| parent | 4888c4aba5a1eaca0f0b9f4ec2ab7008c2fc103b (diff) | |
| download | bcm5719-llvm-41c729e78ec61f47c9b44978a58b23120347d18f.tar.gz bcm5719-llvm-41c729e78ec61f47c9b44978a58b23120347d18f.zip | |
[llvm] Address base discriminator overflow in X86DiscriminateMemOps
Summary:
Macros are expanded on a single line. In case of large expansions,
with sufficiently many instructions with memory operands (and when
-fdebug-info-for-profiling is requested), we may be unable to generate
new base discriminator values - new values overflow (base
discriminators may not be larger than 2^12).
This CL warns instead of asserting in such a case. A subsequent CL
will add APIs to check for overflow before creating new debug info.
See https://bugs.llvm.org/show_bug.cgi?id=39890
Reviewers: davidxl, wmi, gbedwell
Reviewed By: davidxl
Subscribers: aprantl, llvm-commits
Differential Revision: https://reviews.llvm.org/D55643
llvm-svn: 349075
Diffstat (limited to 'llvm/test/Bitcode/thinlto-function-summary-callgraph-pgo.ll')
0 files changed, 0 insertions, 0 deletions
