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| author | Matthew Simpson <mssimpso@codeaurora.org> | 2016-07-14 14:36:06 +0000 |
|---|---|---|
| committer | Matthew Simpson <mssimpso@codeaurora.org> | 2016-07-14 14:36:06 +0000 |
| commit | 3c3b4a257b2fd34e572f9df28404619734251b76 (patch) | |
| tree | 162ec31f71590eb99e334167a7ab2d0d4e6e4d66 /lldb/packages/Python/lldbsuite/test/expression_command/macros/main.cpp | |
| parent | 4eaedde53031bf4c4342b983b08019c206698cee (diff) | |
| download | bcm5719-llvm-3c3b4a257b2fd34e572f9df28404619734251b76.tar.gz bcm5719-llvm-3c3b4a257b2fd34e572f9df28404619734251b76.zip | |
[LV] Avoid unnecessary IV scalar-to-vector-to-scalar conversions
This patch prevents increases in the number of instructions, pre-instcombine,
due to induction variable scalarization. An increase in instructions can lead
to an increase in the compile-time required to simplify the induction
variables. We now maintain a new map for scalarized induction variables to
prevent us from converting between the scalar and vector forms.
This patch should resolve compile-time regressions seen after r274627.
llvm-svn: 275419
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/expression_command/macros/main.cpp')
0 files changed, 0 insertions, 0 deletions
