llvm-project

Author SHA1 Message Date

Author	SHA1	Message	Date
Nemanja Ivanovic	70193b21d1	[NFC] Fix test case after `edab7dd426` The author of the patch forgot to add -verify-machineinstrs to the RUN lines which would have made the issue appear on all bots. Added that as well as a fix for the undefined register issue (after the hoisting).	2019-11-11 20:40:40 -06:00
Victor Huang	6b0af41ad7	Fixing PowerPC llc test cases for Disable hoisting MI to hotter basic blocks by adding powerpc triple	2019-11-11 23:47:47 +00:00
Victor Huang	edab7dd426	Disable hoisting MI to hotter basic blocks In current Hoist() function of machine licm pass, it will not check the source and destination basic block frequencies that a instruction is hoisted from/to. There is a chance that instruction is hoisted from a cold to a hot basic block. In this patch, we add options to disable machine instruction hoisting if destination block is hotter. Differential Revision: https://reviews.llvm.org/D63676	2019-11-11 21:32:56 +00:00

Nemanja Ivanovic

70193b21d1

[NFC] Fix test case after edab7dd426

The author of the patch forgot to add -verify-machineinstrs to the RUN
lines which would have made the issue appear on all bots. Added that
as well as a fix for the undefined register issue (after the hoisting).

2019-11-11 20:40:40 -06:00

Victor Huang 6b0af41ad7 Fixing PowerPC llc test cases for Disable hoisting MI to hotter basic blocks by adding powerpc triple 2019-11-11 23:47:47 +00:00

Victor Huang

edab7dd426

Disable hoisting MI to hotter basic blocks

In current Hoist() function of machine licm pass, it will not check the source and destination basic block frequencies that a instruction is hoisted from/to.
There is a chance that instruction is hoisted from a cold to a hot basic block.

In this patch, we add options to disable machine instruction hoisting if destination block is hotter.

Differential Revision: https://reviews.llvm.org/D63676

2019-11-11 21:32:56 +00:00

3 Commits