David Bolvansky 30f7e67339 [InstCombine] mempcpy(d,s,n) to memcpy(d,s,n) + n ...

Summary:
Back-end currently expands mempcpy, but middle-end should work with memcpy instead of mempcpy to enable more memcpy-optimization.

GCC backend emits mempcpy, so LLVM backend could form it too, if we know mempcpy libcall is better than memcpy + n.
https://godbolt.org/z/dOCG96

Reviewers: efriedma, spatel, craig.topper, RKSimon, jdoerfert

Reviewed By: efriedma

Subscribers: hjl.tools, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65737

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@370593 91177308-0d34-0410-b5e6-96231b3b80d8

2019-08-31 18:19:05 +00:00

..

AggressiveInstCombine

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

Coroutines

[llvm] Migrate llvm::make_unique to std::make_unique

2019-08-15 15:54:37 +00:00

Hello

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00

InstCombine

[InstCombine][AMDGPU] Simplify tbuffer loads

2019-08-30 14:20:04 +00:00

Instrumentation

[ASan] Make insertion of version mismatch guard configurable

2019-08-28 20:40:55 +00:00

IPO

[SampleFDO] Add profile symbol list section to discriminate function being

2019-08-31 02:27:26 +00:00

ObjCARC

[ObjC][ARC] Delete ObjC runtime calls on global variables annotated

2019-06-14 22:06:32 +00:00

Scalar

[CVP] Generate simpler code for elided with.overflow intrinsics

2019-08-31 09:58:37 +00:00

Utils

[InstCombine] mempcpy(d,s,n) to memcpy(d,s,n) + n

2019-08-31 18:19:05 +00:00

Vectorize

Fix cppcheck shadow variable and variable scope warnings. NFCI.

2019-08-31 12:30:19 +00:00

CMakeLists.txt

Another try to commit 323321 (aggressive instruction combine).

2018-01-25 12:06:32 +00:00

LLVMBuild.txt

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19 08:50:56 +00:00