Sanjay Patel 5478a36577 [CGP] add special-cases to form unsigned add with overflow (PR40486) ...

There's likely a missed IR canonicalization for at least 1 of these
patterns. Otherwise, we wouldn't have needed the pattern-matching
enhancement in D57516.

Note that -- unlike usubo added with D57789 -- the TLI hook for
this transform defaults to 'on'. So if there's any perf fallout
from this, targets should look at how they're lowering the uaddo
node in SDAG and/or override that hook.

The x86 diffs suggest that there's some missing pattern-matching
for forming inc/dec.

This should fix the remaining known problems in:
https://bugs.llvm.org/show_bug.cgi?id=40486
https://bugs.llvm.org/show_bug.cgi?id=31754

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354746 91177308-0d34-0410-b5e6-96231b3b80d8

2019-02-24 15:31:27 +00:00

..

AArch64

[CGP] Add support for sinking operands to their users, if they are free.

2019-02-05 10:27:40 +00:00

AMDGPU

AMDGPU: Fix tests using old number for constant address space

2018-09-10 02:54:25 +00:00

ARM

Remove irrelevant references to legacy git repositories from

2019-01-15 16:18:52 +00:00

Mips

[CodeGenPrepare] Check that erased sunken address are not reused

2017-11-24 16:45:28 +00:00

NVPTX

[BypassSlowDivision] Improve our handling of divisions by constants

2017-12-04 19:21:58 +00:00

X86

[CGP] add special-cases to form unsigned add with overflow (PR40486)

2019-02-24 15:31:27 +00:00

2008-11-24-RAUW-Self.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

basic.ll

Add a 'dynamic' parameter to the objectsize intrinsic

2019-01-30 20:34:35 +00:00

bitreverse-hang.ll

Remove irrelevant references to legacy git repositories from

2019-01-15 16:18:52 +00:00

builtin-condition.ll

Add address space mangling to lifetime intrinsics

2017-04-10 20:18:21 +00:00

crash-on-large-allocas.ll

Add a 'dynamic' parameter to the objectsize intrinsic

2019-01-30 20:34:35 +00:00

dom-tree.ll

Remove irrelevant references to legacy git repositories from

2019-01-15 16:18:52 +00:00

gep-unmerging.ll

Unmerge GEPs to reduce register pressure on IndirectBr edges.

2017-09-11 17:52:08 +00:00

invariant.group.ll

Implement strip.invariant.group

2018-07-02 04:49:30 +00:00

nonintegral.ll

[CodeGenPrepare] Don't create inttoptr for ni ptrs

2017-06-29 20:28:59 +00:00

section-samplepgo.ll

[SampleFDO] handle ProfileSampleAccurate when initializing function entry count

2018-12-13 21:51:42 +00:00

section.ll

[PGO] Function section hotness prefix should look at all blocks

2017-12-20 17:53:10 +00:00

sink-shift-and-trunc.ll

[CodeGenPrepare] Preserve debug locs in OptimizeExtractBits

2018-09-15 04:08:52 +00:00

skip-merging-case-block.ll

Revert "[CGP] Merge empty case blocks if no extra moves are added."

2017-10-27 00:35:18 +00:00

split-indirect-loop.ll

[CodeGenPrepare] Fix crash due to an invalid CFG

2017-04-17 19:11:04 +00:00

statepoint-relocate.ll

[CGP] Fix the rematerialization of gc.relocates

2017-08-17 05:48:30 +00:00

widenable-condition.ll

Lower widenable_conditions in CGP

2019-01-31 18:45:46 +00:00