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The tail-call-kind-ness is known by the ObjCARC analysis and can be
enforced while lowering the intrinsics to calls.
This allows us to get the requested tail calls at -O0 without trying to
preserve the attributes throughout passes that change code even at -O0
,like the Always Inliner, where the ObjCOpt pass doesn't run.
Differential Revision: https://reviews.llvm.org/D69980
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The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
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As it's causing some bot failures (and per request from kbarton).
This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.
llvm-svn: 358546
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weak_external in some cases
Clang uses weak linkage for objc runtime functions when they are not available on the platform.
The intrinsic has this linkage so we just need to pass that on to the runtime call.
llvm-svn: 349559
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For performance reasons, clang set nonlazybind on these functions. Now that we
are using intrinsics instead of runtime calls, we should set this attribute when
creating the runtime functions.
llvm-svn: 349558
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instead of SDAG.
SelectionDAG currently changes these intrinsics to function calls, but that won't work
for other ISel's. Also we want to eventually support nonlazybind and weak linkage coming
from the front-end which we can't do in SelectionDAG.
llvm-svn: 349552
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