Justin Lebar 038cbc5c13 Re-re-land: Teach CorrelatedValuePropagation to reduce the width of udiv/urem instructions. ...

Summary:
If the operands of a udiv/urem can be proved to fit within a smaller
power-of-two-sized type, reduce the width of the udiv/urem.

Backed out for causing performance regressions.  Re-landing
because we've determined that these regressions were noise.

Original Differential Revision: https://reviews.llvm.org/D44102

llvm-svn: 328096

2018-03-21 14:08:21 +00:00

..

2010-09-02-Trunc.ll

…

2010-09-26-MergeConstantRange.ll

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add.ll

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alloca.ll

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ashr.ll

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basic.ll

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conflict.ll

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crash.ll

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guards.ll

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icmp.ll

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non-null.ll

Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)

2018-01-19 17:13:12 +00:00

overflows.ll

[CVP] Remove some {s|u}sub.with.overflow checks.

2017-12-05 18:14:24 +00:00

pr35807.ll

[CVP] Don't Replace incoming values from unreachable blocks with undef.

2018-01-29 05:59:55 +00:00

range.ll

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sdiv.ll

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select.ll

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srem.ll

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udiv.ll

Re-re-land: Teach CorrelatedValuePropagation to reduce the width of udiv/urem instructions.

2018-03-21 14:08:21 +00:00

urem.ll

Re-re-land: Teach CorrelatedValuePropagation to reduce the width of udiv/urem instructions.

2018-03-21 14:08:21 +00:00