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| author | Dehao Chen <dehao@google.com> | 2016-09-12 20:23:28 +0000 |
|---|---|---|
| committer | Dehao Chen <dehao@google.com> | 2016-09-12 20:23:28 +0000 |
| commit | 9bbb941acfba70d557c572d102412dba91fbd128 (patch) | |
| tree | c42ff036e39bd292d81496696ebdf00fa2343fb1 /lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h | |
| parent | d0c1c3220a1c16a9f8d903c190bc0bdfdc008954 (diff) | |
| download | llvm-9bbb941acfba70d557c572d102412dba91fbd128.zip llvm-9bbb941acfba70d557c572d102412dba91fbd128.tar.gz llvm-9bbb941acfba70d557c572d102412dba91fbd128.tar.bz2 | |
Lower consecutive select instructions correctly.
Summary: If consecutive select instructions are lowered separately in CGP, it will introduce redundant condition check and branches that cannot be removed by later optimization phases. This patch lowers all consecutive select instructions at the same to to avoid inefficent code as demonstrated in https://llvm.org/bugs/show_bug.cgi?id=29095
Reviewers: davidxl
Subscribers: vsk, llvm-commits
Differential Revision: https://reviews.llvm.org/D24147
llvm-svn: 281252
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h')
0 files changed, 0 insertions, 0 deletions