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release_36
archived-llvm/test/Transforms/IndVarSimplify
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Hans Wennborg 9696cd8292 Merging r226075: 
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r226075 | sanjoy | 2015-01-14 17:46:09 -0800 (Wed, 14 Jan 2015) | 10 lines

Fix PR22222

The bug was introduced in r225282. r225282 assumed that sub X, Y is
the same as add X, -Y. This is not correct if we are going to upgrade
the sub to sub nuw. This change fixes the issue by making the
optimization ignore sub instructions.

Differential Revision: http://reviews.llvm.org/D6979


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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226193 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-15 19:16:54 +00:00
..
NVPTX
Disable indvar widening if arithmetics on the wider type are more expensive
2014-11-12 18:09:15 +00:00
2002-09-09-PointerIndVar.ll
…
2003-04-16-ExprAnalysis.ll
…
2003-09-23-NotAtTop.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 01:28:40 +00:00
2003-12-10-RemoveInstrCrash.ll
Teach ScalarEvolution how to compute a tripcount for a loop with
2010-02-19 18:12:07 +00:00
2003-12-15-Crash.ll
Teach ScalarEvolution how to compute a tripcount for a loop with
2010-02-19 18:12:07 +00:00
2004-03-10-PHIInsertionBug.ll
…
2004-04-05-InvokeCastCrash.ll
Move TargetData to DataLayout.
2012-10-08 16:39:34 +00:00
2004-04-07-ScalarEvolutionCrash.ll
…
2005-02-11-InvokeCrash.ll
Update to new EH scheme.
2011-09-01 01:02:41 +00:00
2005-02-17-TruncateExprCrash.ll
Update to new EH scheme.
2011-09-01 01:02:41 +00:00
2005-02-26-ExitValueCompute.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
2005-06-15-InstMoveCrash.ll
…
2005-11-18-Crash.ll
Teach ScalarEvolution how to compute a tripcount for a loop with
2010-02-19 18:12:07 +00:00
2006-03-31-NegativeStride.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
2006-06-16-Indvar-LCSSA-Crash.ll
…
2006-09-20-LFTR-Crash.ll
…
2006-12-10-BitCast.ll
Teach ScalarEvolution how to compute a tripcount for a loop with
2010-02-19 18:12:07 +00:00
2007-01-06-TripCount.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
2007-06-06-DeleteDanglesPtr.ll
…
2007-11-23-BitcastCrash.ll
…
2008-06-15-SCEVExpanderBug.ll
…
2008-09-02-IVType.ll
manually upgrade a bunch of tests to modern syntax, and remove some that
2011-06-17 03:14:27 +00:00
2008-10-03-CouldNotCompute.ll
…
2008-11-25-APFloatAssert.ll
…
2009-04-14-shorten_iv_vars.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
2009-04-15-shorten-iv-vars-2.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
2009-04-22-IndvarCrash.ll
…
2009-04-27-Floating.ll
Fixes PR9730: indvars: An asserting value handle still pointed to this value
2011-04-27 23:00:03 +00:00
2009-05-24-useafterfree.ll
Correct bogus module triple specifications.
2010-08-30 10:48:29 +00:00
2011-09-10-widen-nsw.ll
This patch teaches IndVarSimplify to add nuw and nsw to certain kinds
2015-01-06 19:02:56 +00:00
2011-09-19-vectoriv.ll
[indvars] Fix PR10946: SCEV cannot handle Vector IVs.
2011-09-19 17:54:39 +00:00
2011-09-27-hoistsext.ll
Test case for r140670: indvars should hoist sext.
2011-09-28 02:13:32 +00:00
2011-10-27-lftrnull.ll
IndVarSimplify: Don't let LFTR compare against a poison value
2014-09-03 23:03:18 +00:00
2011-11-01-lftrptr.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
2011-11-15-multiexit.ll
Fix SCEV overly optimistic back edge taken count for multi-exit loops.
2011-11-16 00:52:40 +00:00
2011-11-17-selfphi.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
2012-07-17-lftr-undef.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
2012-10-19-congruent-constant.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
2014-06-21-congruent-constant.ll
Add a description to the test from r211433 explaining why it's written that way.
2014-06-22 12:22:04 +00:00
ada-loops.ll
Remove redundant -enable-iv-rewrite=false flags from test cases.
2012-03-22 17:09:04 +00:00
ashr-tripcount.ll
Removed colons from some target datalayout strings in test, since they don't match the required format.
2011-10-12 22:24:17 +00:00
avoid-i0.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
backedge-on-min-max.ll
Teach ScalarEvolution to exploit min and max expressions when proving
2014-12-15 22:50:15 +00:00
casted-argument.ll
Fix declarations in a few more tests.
2010-04-17 21:29:25 +00:00
crash.ll
Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
2012-12-30 02:33:22 +00:00
dangling-use.ll
Manually notify ScalarEvolution before making an operand replacement, since
2010-04-02 14:48:31 +00:00
divide-pointer.ll
…
dont-recompute.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
elim-extend.ll
Remove redundant -enable-iv-rewrite=false flags from test cases.
2012-03-22 17:09:04 +00:00
eliminate-comparison.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
eliminate-max.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
eliminate-rem.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
exit_value_tests.ll
…
floating-point-iv.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
indirectbr.ll
Disable indvars on loops when LoopSimplify form is not available.
2010-06-18 01:35:11 +00:00
interesting-invoke-use.ll
Update to new EH scheme.
2011-09-01 01:02:41 +00:00
iterationCount_zext_or_trunc.ll
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iv-fold.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
iv-sext.ll
Removed colons from some target datalayout strings in test, since they don't match the required format.
2011-10-12 22:24:17 +00:00
iv-widen.ll
Reapply r198654 "indvars: sink truncates outside the loop."
2014-01-07 06:59:12 +00:00
iv-zext.ll
Disallow the undocumented practice of starting the datalayout string with '-'.
2012-11-23 14:51:42 +00:00
lcssa-preservation.ll
[LPM] Fix PR18642, a pretty nasty bug in IndVars that "never mattered"
2014-01-29 04:40:19 +00:00
lftr_simple.ll
…
lftr-address-space-pointers.ll
IndVarSimplify: Don't let LFTR compare against a poison value
2014-09-03 23:03:18 +00:00
lftr-extend-const.ll
IndVarSimplify: Allow LFTR to fire more often
2014-11-18 02:20:58 +00:00
lftr-other-uses.ll
…
lftr-promote.ll
…
lftr-reuse.ll
IndVarSimplify: Don't let LFTR compare against a poison value
2014-09-03 23:03:18 +00:00
lftr-zext.ll
Fix a bug in LinearFunctionTestReplace that created invalid loop exit checks.
2013-10-24 05:29:56 +00:00
loop_evaluate7.ll
…
loop_evaluate8.ll
…
loop_evaluate9.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
loop_evaluate10.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
loop_evaluate11.ll
…
loop_evaluate_1.ll
Add test case for PR12377, it was fixed by r194116.
2013-11-06 11:55:41 +00:00
loop_evaluate_2.ll
…
loop_evaluate_3.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
loop_evaluate_4.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
loop_evaluate_5.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
loop_evaluate_6.ll
Rewrite SCEV's backedge taken count computation.
2013-11-06 02:08:26 +00:00
masked-iv.ll
…
no-iv-rewrite.ll
[IndVarSimplify] Widen loop compare instructions.
2014-09-17 14:10:33 +00:00
overflowcheck.ll
Add support to indvars for optimizing sadd.with.overflow.
2013-12-23 23:31:49 +00:00
phi-uses-value-multiple-times.ll
Revert the test moves from 176733. Use "REQUIRES: asserts" instead.
2013-03-12 16:27:52 +00:00
polynomial-expand.ll
…
pr18223.ll
ScalarEvolution: Fix handling of AddRecs in isKnownPredicate
2014-05-23 00:06:56 +00:00
pr20680.ll
IndVarSimplify: Don't let LFTR compare against a poison value
2014-09-03 23:03:18 +00:00
pr22222.ll
Merging r226075:
2015-01-15 19:16:54 +00:00
preserve-signed-wrap.ll
Remove redundant -enable-iv-rewrite=false flags from test cases.
2012-03-22 17:09:04 +00:00
promote-iv-to-eliminate-casts.ll
…
sharpen-range.ll
IR: Make metadata typeless in assembly
2014-12-15 19:07:53 +00:00
shrunk-constant.ll
Convert all tests using TCL-style quoting to use shell-style quoting.
2012-07-02 12:47:22 +00:00
signed-trip-count.ll
…
single-element-range.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
sink-alloca.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
sink-trapping.ll
…
strengthen-overflow.ll
Merging r226075:
2015-01-15 19:16:54 +00:00
tripcount_compute.ll
Fix PR18449: SCEV needs more precise max BECount for multi-exit loop.
2014-01-15 06:42:11 +00:00
tripcount_infinite.ll
…
udiv-invariant-but-traps.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
udiv.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
uglygep.ll
Fix this test.
2010-07-16 01:28:45 +00:00
ult-sub-to-eq.ll
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
2013-07-14 01:42:54 +00:00
use-range-metadata.ll
IR: Make metadata typeless in assembly
2014-12-15 19:07:53 +00:00
variable-stride-ivs-0.ll
Remove redundant -enable-iv-rewrite=false flags from test cases.
2012-03-22 17:09:04 +00:00
variable-stride-ivs-1.ll
…
verify-scev.ll
[IndVarSimplify] Widen loop compare instructions.
2014-09-17 14:10:33 +00:00
widen-loop-comp.ll
Teach ScalarEvolution to sharpen range information.
2014-11-13 00:00:58 +00:00
widen-nsw.ll
Teach indvars to generate nsw/nuw flags when widening an induction variable.
2013-07-14 02:50:07 +00:00