llvm-project

Commit Graph

Author	SHA1	Message	Date
Nirav Dave	fe59e14031	[DAGCombine] Prune unnused nodes. Summary: Nodes that have no uses are eventually pruned when they are selected from the worklist. Record nodes newly added to the worklist or DAG and perform pruning after every combine attempt. Reviewers: efriedma, RKSimon, craig.topper, spatel, jyknight Reviewed By: jyknight Subscribers: jdoerfert, jyknight, nemanjai, jvesely, nhaehnle, javed.absar, hiraditya, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D58070 llvm-svn: 357283	2019-03-29 17:35:56 +00:00
Simon Pilgrim	417f8c5be4	[PowerPC] Use real pointers instead of undef The reduced test removed the pointer arguments, but to better survive D58017 and D58070 we need them back. llvm-svn: 355532	2019-03-06 18:49:39 +00:00
Nemanja Ivanovic	9b393909e2	[PowerPC] Don't combine to bswap store on 1-byte truncating store Turns out that there was no check for a store that truncates down to a single byte when combining a (store (bswap...)) into a byte-swapping store. This patch just adds that check. Fixes https://bugs.llvm.org/show_bug.cgi?id=39478. llvm-svn: 347288	2018-11-20 04:42:31 +00:00

Author

SHA1

Message

Date

Nirav Dave

fe59e14031

[DAGCombine] Prune unnused nodes.

Summary:
Nodes that have no uses are eventually pruned when they are selected
from the worklist. Record nodes newly added to the worklist or DAG and
perform pruning after every combine attempt.

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

Reviewed By: jyknight

Subscribers: jdoerfert, jyknight, nemanjai, jvesely, nhaehnle, javed.absar, hiraditya, jsji, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58070

llvm-svn: 357283

2019-03-29 17:35:56 +00:00

Simon Pilgrim

417f8c5be4

[PowerPC] Use real pointers instead of undef

The reduced test removed the pointer arguments, but to better survive D58017 and D58070 we need them back.

llvm-svn: 355532

2019-03-06 18:49:39 +00:00

Nemanja Ivanovic

9b393909e2

[PowerPC] Don't combine to bswap store on 1-byte truncating store

Turns out that there was no check for a store that truncates down
to a single byte when combining a (store (bswap...)) into a byte-swapping
store. This patch just adds that check.

Fixes https://bugs.llvm.org/show_bug.cgi?id=39478.

llvm-svn: 347288

2018-11-20 04:42:31 +00:00

3 Commits