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| author | Ehsan Amiri <amehsan@ca.ibm.com> | 2019-01-11 15:52:57 +0000 |
|---|---|---|
| committer | Ehsan Amiri <amehsan@ca.ibm.com> | 2019-01-11 15:52:57 +0000 |
| commit | f452f116d2f272af1ea60455167b9e0508c0e47b (patch) | |
| tree | dd51a13b15d875dcc9278d76a56de2c53f95fd9b /llvm/lib/Analysis/ModuleSummaryAnalysis.cpp | |
| parent | 80378fd38b80b18bd053f4a3f9d461246d9444be (diff) | |
| download | llvm-f452f116d2f272af1ea60455167b9e0508c0e47b.zip llvm-f452f116d2f272af1ea60455167b9e0508c0e47b.tar.gz llvm-f452f116d2f272af1ea60455167b9e0508c0e47b.tar.bz2 | |
[Jump Threading] Unfold a select insn that feeds a switch via a phi node
Currently when a select has a constant value in one branch and the select feeds
a conditional branch (via a compare/ phi and compare) we unfold the select
statement. This results in threading the conditional branch later on. Similar
opportunity exists when a select (with a constant in one branch) feeds a
switch (via a phi node). The patch unfolds select under this condition.
A testcase is provided.
llvm-svn: 350931
Diffstat (limited to 'llvm/lib/Analysis/ModuleSummaryAnalysis.cpp')
0 files changed, 0 insertions, 0 deletions