Tim Northover aae0fa998a Teach ReMaterialization to be more cunning about subregisters ...

This allows rematerialization during register coalescing to handle
more cases involving operations like SUBREG_TO_REG which might need to
be rematerialized using sub-register indices.

For example, code like:
    v1(GPR64):sub_32 = MOVZ something
    v2(GPR64) = COPY v1(GPR64)
should be convertable to:
    v2(GPR64):sub_32 = MOVZ something

but previously we just gave up in places like this

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182872 91177308-0d34-0410-b5e6-96231b3b80d8

2013-05-29 19:32:06 +00:00

..

cfi-frame.ll

Add explicit triples to AArch64 tests

2013-02-01 11:40:47 +00:00

dwarfdump.ll

Revert "Revert "PR14606: debug info imported_module support""

2013-04-22 06:12:31 +00:00

eh_frame_personality.ll

Add explicit triples to AArch64 tests

2013-02-01 11:40:47 +00:00

eh_frame.s

AArch64: convert MC-layer test to .s file

2013-04-27 11:56:14 +00:00

lit.local.cfg

…

variable-loc.ll

Teach ReMaterialization to be more cunning about subregisters

2013-05-29 19:32:06 +00:00