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llvm-6502/test/Transforms
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Chandler Carruth 6f0ec20e8f Revert "indvars: Improve LFTR by eliminating truncation when comparing 
against a constant."

This reverts commit r186107. It didn't handle wrapping arithmetic in the
loop correctly and thus caused the following C program to count from
0 to UINT64_MAX instead of from 0 to 255 as intended:

  #include <stdio.h>
  int main() {
    unsigned char first = 0, last = 255;
    do { printf("%d\n", first); } while (first++ != last);
  }

Full test case and instructions to reproduce with just the -indvars pass
sent to the original review thread rather than to r186107's commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186152 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-12 11:18:55 +00:00
..
ADCE
ArgumentPromotion Update some EH tests that were violating the new EH model. 2013-03-21 18:30:10 +00:00
BBVectorize Revert "InstCombine: Fold more shuffles of shuffles." 2013-05-01 00:25:27 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare
ConstantMerge Fix const merging when an alias of a const is llvm.used. 2013-05-06 01:48:55 +00:00
ConstProp Remove this testcase until I can figure out how to properly conditionalize it. 2013-02-07 07:01:54 +00:00
CorrelatedValuePropagation CVP: If we have a PHI with an incoming select, try to skip the select. 2013-02-24 15:34:43 +00:00
DeadArgElim DeadArgumentElimination: keep return value on functions that have a live argument with the 'returned' attribute (rather than generate invalid IR); however, if both can be eliminated, both will be 2013-06-30 20:26:21 +00:00
DeadStoreElimination TBAA: remove !tbaa from testing cases if not used. 2013-04-30 17:52:57 +00:00
DebugIR Adding tests for DebugIR pass 2013-06-28 20:37:20 +00:00
EarlyCSE Initially forgotten-to-svn-add test case for r177279. 2013-03-18 12:07:24 +00:00
FunctionAttrs Extend 'readonly' and 'readnone' to work on function arguments as well as 2013-07-06 00:29:58 +00:00
GCOVProfiling Revert "Revert "PR14606: debug info imported_module support"" 2013-04-22 06:12:31 +00:00
GlobalDCE Revert 179826. Tests were worthless. 2013-04-19 09:32:30 +00:00
GlobalOpt Always remove an alias when we rename the target. 2013-06-12 16:45:47 +00:00
GVN Eliminate trivial redundant loads across nocapture+readonly calls to uncaptured 2013-07-07 10:15:16 +00:00
IndVarSimplify Revert "indvars: Improve LFTR by eliminating truncation when comparing 2013-07-12 11:18:55 +00:00
Inline Update test. There may be multiple catches, but those will be cleaned up. 2013-03-22 20:36:39 +00:00
InstCombine InstSimplify: X >> X -> 0 2013-07-09 22:01:22 +00:00
InstSimplify InstSimplify: X >> X -> 0 2013-07-09 22:01:22 +00:00
Internalize
IPConstantProp Use references to attribute groups on the call/invoke instructions. 2013-02-22 09:09:42 +00:00
JumpThreading TBAA: remove !tbaa from testing cases if not used. 2013-04-30 17:52:57 +00:00
LCSSA
LICM Revert the test moves from 176733. Use "REQUIRES: asserts" instead. 2013-03-12 16:27:52 +00:00
LoopDeletion Modify the LLVM assembly output so that it uses references to represent function attributes. 2013-02-20 07:21:42 +00:00
LoopIdiom
LoopRotate Rotate multi-exit loops even if the latch was simplified. 2013-05-06 17:58:18 +00:00
LoopSimplify
LoopStrengthReduce LSR: Fix the parameters used to compute the scaling factor cost. 2013-06-19 19:59:41 +00:00
LoopUnroll Prevent loop-unroll from making assumptions about undefined behavior. 2013-05-31 23:34:46 +00:00
LoopUnswitch TBAA: remove !tbaa from testing cases if not used. 2013-04-30 17:52:57 +00:00
LoopVectorize LoopVectorize: Vectorize all accesses in address space zero with unit stride 2013-07-11 15:21:55 +00:00
LowerAtomic
LowerExpectIntrinsic
LowerInvoke
LowerSwitch
Mem2Reg Revert "Adding DIImportedModules to DIScopes." 2013-03-28 02:44:59 +00:00
MemCpyOpt Fix a potential bug in r183584. 2013-06-08 04:56:05 +00:00
MergeFunc TBAA: remove !tbaa from testing cases if not used. 2013-04-30 17:52:57 +00:00
MetaRenamer
ObjCARC [objc-arc] Committed test for r185770 as per dblaikie's suggestion. 2013-07-08 02:13:47 +00:00
PhaseOrdering Revert 179826. Tests were worthless. 2013-04-19 09:32:30 +00:00
PruneEH
Reassociate TBAA: remove !tbaa from testing cases if not used. 2013-04-30 17:52:57 +00:00
Reg2Mem
ScalarRepl Fix SROA to avoid unnecessary scalar conversions for 1-element vectors. 2013-06-25 19:09:50 +00:00
SCCP
SimplifyCFG TryToSimplifyUncondBranchFromEmptyBlock was checking that any common 2013-07-11 08:28:20 +00:00
Sink
SLPVectorizer SLPVectorizer: Sink and enable CSE for ExtractElements. 2013-07-12 06:09:24 +00:00
SROA SROA: Generate selects instead of shuffles when blending values because this is the cannonical form. 2013-05-01 19:53:30 +00:00
StripSymbols
StructurizeCFG Move StructurizeCFG out of R600 to generic Transforms. 2013-06-19 20:18:24 +00:00
TailCallElim Teach TailRecursionElimination to handle certain cases of nocapture escaping allocas. 2013-07-11 04:40:01 +00:00
TailDup Revert the test moves from 176733. Use "REQUIRES: asserts" instead. 2013-03-12 16:27:52 +00:00