If a copy was needed to handle the condition of brcond, it was being
inserted before the defining instruction. Add tests for iterator edge
cases.
I find the existing code here suspect for the case where it's looking
for terminators that modify the register. It's going to insert a copy
in the middle of the terminators, which isn't allowed (it might be
necessary to have a COPY_terminator if anybody actually needs this).
Also legalize brcond for AMDGPU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350595 91177308-0d34-0410-b5e6-96231b3b80d8
I'm not sure we should be allowing the truncate
to s1 for the inputs. It may be necessary to
create a new VCC reg bank.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350592 91177308-0d34-0410-b5e6-96231b3b80d8
It seems better to avoid using the callback if possible since
there are coverage assertions which are disabled if this is used.
Also fix missing tests. Only test the legal cases since it seems
legalization for build_vector is quite lacking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@349878 91177308-0d34-0410-b5e6-96231b3b80d8
This patch restricts the capability of G_MERGE_VALUES, and uses the new
G_BUILD_VECTOR and G_CONCAT_VECTORS opcodes instead in the appropriate places.
This patch also includes AArch64 support for selecting G_BUILD_VECTOR of <4 x s32>
and <2 x s64> vectors.
Differential Revisions: https://reviews.llvm.org/D53629
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@348788 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
We were marking G_EXTRACT operations unsupported if the output type
was larger than the input type. I don't see how this could ever actually
happen, so I dropped the constraint. Doing this makes it possible to
reuse the same legality code for G_INSERT.
Reviewers: arsenm
Reviewed By: arsenm
Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, rovka, kristof.beyls, dstuttard, tpr, t-tye, llvm-commits
Differential Revision: https://reviews.llvm.org/D49600
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337794 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This is a follow-up to r335942.
- Merge SISubtarget into AMDGPUSubtarget and rename to GCNSubtarget
- Rename AMDGPUCommonSubtarget to AMDGPUSubtarget
- Merge R600Subtarget::Generation and GCNSubtarget::Generation into
AMDGPUSubtarget::Generation.
Reviewers: arsenm, jvesely
Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, javed.absar, llvm-commits
Differential Revision: https://reviews.llvm.org/D49037
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336851 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
We could split sizes that are not power of two into smaller sized
G_IMPLICIT_DEF instructions, but this ends up generating
G_MERGE_VALUES instructions which we then have to handle in the instruction
selector. Since G_IMPLICIT_DEF is really a no-op it's easier just to
keep everything that can fit into a register legal.
Reviewers: arsenm
Reviewed By: arsenm
Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, rovka, kristof.beyls, dstuttard, tpr, t-tye, llvm-commits
Differential Revision: https://reviews.llvm.org/D48777
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336041 91177308-0d34-0410-b5e6-96231b3b80d8
Currently EVT is in the IR layer only because of Function.cpp needing a very small piece of the functionality of EVT::getEVTString(). The rest of EVT is used in codegen making CodeGen a better place for it.
The previous code converted a Type* to EVT and then called getEVTString. This was only expected to handle the primitive types from Type*. Since there only a few primitive types, we can just print them as strings directly.
Differential Revision: https://reviews.llvm.org/D45017
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328806 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
The improvements to the LegalizerInfo discussed in D42244 require that
LegalizerInfo::LegalizeAction be available for use in other classes. As such,
it needs to be moved out of LegalizerInfo. This has been done separately to the
next patch to minimize the noise in that patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323669 91177308-0d34-0410-b5e6-96231b3b80d8
All these headers already depend on CodeGen headers so moving them into
CodeGen fixes the layering (since CodeGen depends on Target, not the
other way around).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318490 91177308-0d34-0410-b5e6-96231b3b80d8
With this change, the GlobalISel library gets always built. In
particular, this is not possible to opt GlobalISel out of the build
using the LLVM_BUILD_GLOBAL_ISEL variable any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309990 91177308-0d34-0410-b5e6-96231b3b80d8
