6 Commits

Author SHA1 Message Date
Tim Northover
c297159d2f GlobalISel: produce correct code for signext/zeroext ABI flags.
We still don't really have an equivalent of "AssertXExt" in DAG, so we don't
exploit the guarantees on the receiving side yet, but this should produce
conservatively correct code on iOS ABIs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282069 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-21 12:57:45 +00:00
Tim Northover
3d94178ab6 GlobalISel: remove "unsized" LLT
It was only really there as a sentinel when instructions had to have precisely
one type. Now that registers are typed, each register really has to have a type
that is sized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281599 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-15 10:09:59 +00:00
Tim Northover
cdce758a72 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281597 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-15 09:20:34 +00:00
Tim Northover
b430a4adda GlobalISel: support loads and stores of strange types.
Before we mischaracterized structs and i1 types as a scalar with size 0 in
various ways.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278744 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-15 21:13:17 +00:00
Tim Northover
04e7d3ce19 GlobalISel: implement alloca instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276433 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-22 16:59:52 +00:00
Tim Northover
4951996d06 GlobalISel: implement low-level type with just size & vector lanes.
This should be all the low-level instruction selection needs to determine how
to implement an operation, with the remaining context taken from the opcode
(e.g. G_ADD vs G_FADD) or other flags not based on type (e.g. fast-math).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276158 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-20 19:09:30 +00:00