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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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Followup to D55745, this time handling comparisons with ugt and ult
predicates (which are the canonical forms for non-equality predicates).
For ctlz we can convert into a simple icmp, for cttz we can convert
into a mask check.
Differential Revision: https://reviews.llvm.org/D56355
llvm-svn: 351645
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Change part of the tests to use vectors (I'm using scalar for ugt
and vector for ult), add multiuse variations, rename %lz to %tz
for the cttz tests.
llvm-svn: 350471
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llvm-svn: 350468
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Checking whether a number has a certain number of trailing / leading
zeros means checking whether it is of the form XXXX1000 / 0001XXXX,
which can be done with an and+icmp.
Related to https://bugs.llvm.org/show_bug.cgi?id=28668. As a next
step, this can be extended to non-equality predicates.
Differential Revision: https://reviews.llvm.org/D55745
llvm-svn: 349530
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Test cases other than icmp with the bitwidth.
llvm-svn: 349310
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llvm-svn: 307022
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We assumed the constant was a scalar when creating the replacement operand.
Also, improve tests for this fold and move the tests for this fold to their own file.
I'll move the related and missing tests to this file as a follow-up.
llvm-svn: 306985
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