Matt Arsenault 757bf95c73 GlobalISel: Combine g_extract with g_merge_values ...

Try to use the underlying source registers.

This enables legalization in more cases where some irregular
operations are widened and others narrowed.

This seems to make the test_combines_2 AArch64 test worse, since the
MERGE_VALUES has multiple uses. Since this should be required for
legalization, a hasOneUse check is probably inappropriate (or maybe
should only be used if the merge is legal?).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353121 91177308-0d34-0410-b5e6-96231b3b80d8

2019-02-04 23:41:59 +00:00

..

llvm

GlobalISel: Combine g_extract with g_merge_values

2019-02-04 23:41:59 +00:00

llvm-c

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

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