Commit Graph

8 Commits

Author SHA1 Message Date
Tim Northover 69fa84a6e9 GlobalISel: rename legalizer components to match others.
The previous names were both misleading (the MachineLegalizer actually
contained the info tables) and inconsistent with the selector & translator (in
having a "Machine") prefix. This should make everything sensible again.

The only functional change is the name of a couple of command-line options.

llvm-svn: 284287
2016-10-14 22:18:18 +00:00
Diana Picus 68c7b04e8d [GlobalISel] Get the AArch64 tests to work on Linux
Mostly this just means changing the triple from aarch64-apple-ios to the generic
aarch64--. Only one test needs more significant changes, but GlobalISel already
does the right thing so it's ok to just change the checks.

Differential Revision: https://reviews.llvm.org/D25532

llvm-svn: 284223
2016-10-14 10:19:40 +00:00
Tim Northover fe6fec9f65 GlobalISel: fix misuse of using declaration in test.
Clang didn't diagnose it before. Oops.

llvm-svn: 283451
2016-10-06 13:57:31 +00:00
Tim Northover 5ae8350af6 GlobalISel: cache pointer sizes in LLT
Otherwise everything that needs to work out what size they are has to keep a
DataLayout handy, which is a bit silly and very annoying.

llvm-svn: 281597
2016-09-15 09:20:34 +00:00
Tim Northover f8bab1ce0c GlobalISel: use multi-dimensional arrays for legalize actions.
Instead of putting all possible requests into a single table, we can perform
the extremely dense lookup based on opcode and type-index in constant time
using multi-dimensional array-like things.

This roughly halves the time spent doing legalization, which was dominated by
queries against the Actions table.

llvm-svn: 280011
2016-08-29 21:00:00 +00:00
Tim Northover cecee56abb GlobalISel: legalize sdiv and srem operations.
llvm-svn: 279842
2016-08-26 17:46:13 +00:00
Tim Northover a01bece1dc GlobalISel: extend legalizer interface to handle multiple types.
Instructions like G_ICMP have multiple types that may need to be legalized (the
boolean output and nearly arbitrary inputs in this case). So the legalizer must
be capable of deciding what to do for each of them separately.

llvm-svn: 279554
2016-08-23 19:30:42 +00:00
Tim Northover 75ad077330 GlobalISel: implement Legalization querying framework.
This adds an (incomplete, inefficient) framework for deciding what to do with
some operation on a given type.

llvm-svn: 276184
2016-07-20 21:13:29 +00:00