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reland "add -fthinlto-index= option to clang-cl"

Description

reland "add -fthinlto-index= option to clang-cl"

Summary:
This is a reland of r366146, adding in the previously missing '--'
flag that prevents filenames from being interpreted as flags.

Original description:
This adds a -fthinlto-index= option to clang-cl, which allows it to
be used to drive ThinLTO backend passes. This allows clang-cl to be
used for distributed ThinLTO.

Tags: #clang

Details

Committed
inglorionJul 15 2019, 6:35 PM
Parents
rL366164: Re-land "[DebugInfo] Move function from line table to the prologue (NFC)"
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