diff options
| author | Tim Northover <tnorthover@apple.com> | 2013-05-29 19:32:06 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2013-05-29 19:32:06 +0000 |
| commit | b65f6b0820405929227b1d3a419d1519e9197dd6 (patch) | |
| tree | df367441b75f3d9da9ff5a1916b1d487eef7121b /lldb/source/Commands/CommandObjectExpression.cpp | |
| parent | 345d05fbbee6591b052a987137d9ad3997452f70 (diff) | |
| download | llvm-b65f6b0820405929227b1d3a419d1519e9197dd6.zip llvm-b65f6b0820405929227b1d3a419d1519e9197dd6.tar.gz llvm-b65f6b0820405929227b1d3a419d1519e9197dd6.tar.bz2 | |
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
llvm-svn: 182872
Diffstat (limited to 'lldb/source/Commands/CommandObjectExpression.cpp')
0 files changed, 0 insertions, 0 deletions