Commit Graph

8 Commits

Author SHA1 Message Date
Matt Arsenault 3dbeefa978 AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel
Currently the default C calling convention functions are treated
the same as compute kernels. Make this explicit so the default
calling convention can be changed to a non-kernel.

Converted with perl -pi -e 's/define void/define amdgpu_kernel void/'
on the relevant test directories (and undoing in one place that actually
wanted a non-kernel).

llvm-svn: 298444
2017-03-21 21:39:51 +00:00
Mikael Holmen ece84cd10c [LSR] Pointers with different address spaces are considered incompatible.
Summary:
Function isCompatibleIVType is already used as a guard before the call to

 SE.getMinusSCEV(OperExpr, PrevExpr);

in LSRInstance::ChainInstruction. getMinusSCEV requires the expressions
to be of the same type, so we now consider two pointers with different
address spaces to be incompatible, since it is possible that the pointers
in fact have different sizes.

Reviewers: qcolombet, eli.friedman

Reviewed By: qcolombet

Subscribers: nhaehnle, Ka-Ka, llvm-commits, mzolotukhin

Differential Revision: https://reviews.llvm.org/D29885

llvm-svn: 295033
2017-02-14 06:37:42 +00:00
Matt Arsenault cb3fa37c7e LSR: Check atomic instruction pointer operands
llvm-svn: 294410
2017-02-08 06:44:58 +00:00
Matt Arsenault 1f2ca66317 LSR: Don't drop address space when type doesn't match
For targets with different addressing modes in each address space,
if this is dropped querying isLegalAddressingMode later with this
will give a nonsense result, breaking the isLegalUse assertions.

This is a candidate for the 4.0 release branch.

llvm-svn: 293542
2017-01-30 19:50:17 +00:00
Matt Arsenault f42c69206d AMDGPU: Run pointer optimization passes
llvm-svn: 272736
2016-06-15 00:11:01 +00:00
Matt Arsenault 71fa1f375e AMDGPU: Fix a few slightly broken tests
Fix minor bugs and uses of undef which break when
pointer related optimization passes are run.

llvm-svn: 269944
2016-05-18 15:48:44 +00:00
Matt Arsenault 7d1b6c81af AMDGPU: Stop reporting an addressing mode for unknown addrspace
This was being treated the same as private, which has an immediate
offset. For unknown, it probably means it's for a computation not
actually being used for accessing memory, so it should not have a
nontrivial addressing mode.

llvm-svn: 268002
2016-04-29 06:25:10 +00:00
Matt Arsenault 427a0fd22e LoopStrengthReduce: Try to pass address space to isLegalAddressingMode
This seems to only work some of the time. In some situations,
this seems to use a nonsensical type and isn't actually aware of the
memory being accessed. e.g. if branch condition is an icmp of a pointer,
it checks the addressing mode of i1.

llvm-svn: 245137
2015-08-15 00:53:06 +00:00