Sanjoy Das 3745f0675a [BypassSlowDivision] Improve our handling of divisions by constants ...

(This reapplies r314253.  r314253 was reverted on r314482 because of a
correctness regression on P100, but that regression was identified to be
something else.)

Summary:
Don't bail out on constant divisors for divisions that can be narrowed without
introducing control flow .  This gives us a 32 bit multiply instead of an
emulated 64 bit multiply in the generated PTX assembly.

Reviewers: jlebar

Subscribers: jholewinski, mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D38265

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319677 91177308-0d34-0410-b5e6-96231b3b80d8

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

..

AArch64

Fix some misc. -enable-var-scope violations

2017-11-13 01:47:52 +00:00

AMDGPU

AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel

2017-03-21 21:39:51 +00:00

ARM

[CGP] Fix handling of null pointer values in optimizeMemoryInst

2017-11-27 11:29:15 +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] Fix common type handling in optimizeMemoryInst

2017-11-29 05:51:26 +00:00

2008-11-24-RAUW-Self.ll

…

basic.ll

Let llvm.objectsize be conservative with null pointers

2017-03-21 20:08:59 +00:00

bitreverse-hang.ll

[InstCombine] Rewrite bswap/bitreverse handling completely.

2016-01-15 09:20:19 +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 test for r307754

2017-07-12 16:30:37 +00:00

dom-tree.ll

Keep CodeGenPrepare from preserving the domtree.

2016-03-22 21:25:08 +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

Let llvm.invariant.group.barrier accepts pointer to any address space

2017-11-16 16:32:16 +00:00

nonintegral.ll

[CodeGenPrepare] Don't create inttoptr for ni ptrs

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

overflow-intrinsics.ll

[InstCombine][CodeGenPrep] Create llvm.uadd.with.overflow in CGP.

2015-04-10 21:07:09 +00:00

section-samplepgo.ll

Restrict call metadata based hotness detection to Sample PGO mode

2017-05-11 23:18:05 +00:00

section.ll

Restrict call metadata based hotness detection to Sample PGO mode

2017-05-11 23:18:05 +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