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4 Commits

Author SHA1 Message Date
Sam Parker 60d6fb2a63 [SCEV] Use NoWrapFlags when expanding a simple mul 
Second functional change following on from rL362687. Pass the
NoWrapFlags from the MulExpr to InsertBinop when we're generating a
shl or mul.

Differential Revision: https://reviews.llvm.org/D61934

llvm-svn: 363540
 2019-06-17 10:05:18 +00:00
Benjamin Kramer f1249442cf Revert "[SCEV] Use wrap flags in InsertBinop" 
This reverts commit r362687. Miscompiles llvm-profdata during selfhost.

llvm-svn: 362699
 2019-06-06 12:35:46 +00:00
Sam Parker 7cc580f5e9 [SCEV] Use wrap flags in InsertBinop 
If the given SCEVExpr has no (un)signed flags attached to it, transfer
these to the resulting instruction or use them to find an existing
instruction.

Differential Revision: https://reviews.llvm.org/D61934

llvm-svn: 362687
 2019-06-06 08:56:26 +00:00
Roman Lebedev e8578953ac [LoopIdiom] Basic OptimizationRemarkEmitter handling 
Summary:
I'm adding ORE to memset/memcpy formation, with tests,
but mainly this is split off from D61144.

Reviewers: reames, anemet, thegameg, craig.topper

Reviewed By: thegameg

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62631

llvm-svn: 362092
 2019-05-30 13:02:06 +00:00