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| author | Brian Gesiak <modocache@gmail.com> | 2020-01-05 17:07:57 -0500 |
|---|---|---|
| committer | Brian Gesiak <modocache@gmail.com> | 2020-01-05 18:26:30 -0500 |
| commit | 83a9321f60d837e4d41c9c08c09ab9e4c171ada4 (patch) | |
| tree | 3e6b427e58af48efc3f591308ece551115a8cb29 /lldb/packages/Python/lldbsuite/test/python_api/section/TestSectionAPI.py | |
| parent | 445f4d2310e751a6ab18f84b1d4ad13037ffd819 (diff) | |
| download | bcm5719-llvm-83a9321f60d837e4d41c9c08c09ab9e4c171ada4.tar.gz bcm5719-llvm-83a9321f60d837e4d41c9c08c09ab9e4c171ada4.zip | |
[Coroutines] Remove corresponding phi values when apply simplifyTerminatorLeadingToRet
Summary:
In addMustTailToCoroResumes, we set musttail on those resume instructions that are followed by a ret instruction. This is done by simplifyTerminatorLeadingToRet which replace a sequence of branches leading to a ret with a clone of the ret.
However it forgets to remove corresponding PHI values that come from basic block of replaced branch, and may cause jumpthreading pass hangs (https://bugs.llvm.org/show_bug.cgi?id=43720)
This patch fix this issue
Test Plan:
cppcoro library with O3+flto
check-llvm
Reviewers: modocache, GorNishanov, lewissbaker
Reviewed By: modocache
Subscribers: mehdi_amini, EricWF, hiraditya, dexonsmith, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D71826
Patch by junparser (JunMa)!
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/python_api/section/TestSectionAPI.py')
0 files changed, 0 insertions, 0 deletions
