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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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-loop-distribute
In r267672, where the loop distribution pragma was introduced, I tried
it hard to keep the old behavior for opt: when opt is invoked
with -loop-distribute, it should distribute the loop (it's off by
default when ran via the optimization pipeline).
As MichaelZ has discovered this has the unintended consequence of
breaking a very common developer work-flow to reproduce compilations
using opt: First you print the pass pipeline of clang
with -debug-pass=Arguments and then invoking opt with the returned
arguments.
clang -debug-pass will include -loop-distribute but the pass is invoked
with default=off so nothing happens unless the loop carries the pragma.
While through opt (default=on) we will try to distribute all loops.
This changes opt's default to off as well to match clang. The tests are
modified to explicitly enable the transformation.
llvm-svn: 290235
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Summary:
Requiring loop-simplify form for loop versioning ensures that the
runtime check block always dominates the exit block.
This patch closes #30958 (https://llvm.org/bugs/show_bug.cgi?id=30958).
Reviewers: silviu.baranga, hfinkel, anemet, ashutosh.nema
Subscribers: ashutosh.nema, mzolotukhin, efriedma, hfinkel, llvm-commits
Differential Revision: https://reviews.llvm.org/D27469
llvm-svn: 290116
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