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authorMatthew Simpson <mssimpso@codeaurora.org>2016-07-14 14:36:06 +0000
committerMatthew Simpson <mssimpso@codeaurora.org>2016-07-14 14:36:06 +0000
commit3c3b4a257b2fd34e572f9df28404619734251b76 (patch)
tree162ec31f71590eb99e334167a7ab2d0d4e6e4d66 /lldb/packages/Python/lldbsuite/test/expression_command/macros/main.cpp
parent4eaedde53031bf4c4342b983b08019c206698cee (diff)
downloadbcm5719-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')
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