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* CodeGenPrep: preserve inbounds attribute when sinking GEPs.Tim Northover2019-03-121-2/+2
| | | | | | | | | Targets can potentially emit more efficient code if they know address computations never overflow. For example ILP32 code on AArch64 (which only has 64-bit address computation) can ignore the possibility of overflow with this extra information. llvm-svn: 355926
* [ARM, Thumb1] Prevent ARMTargetLowering::isLegalAddressingMode from ↵Evgeny Astigeevich2017-08-241-0/+45
accepting illegal modes ARMTargetLowering::isLegalAddressingMode can accept illegal addressing modes for the Thumb1 target. This causes generation of redundant code and affects performance. This fixes PR34106: https://bugs.llvm.org/show_bug.cgi?id=34106 Differential Revision: https://reviews.llvm.org/D36467 llvm-svn: 311649
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