Tom Stellard d0d956ae31 [RegisterBankInfo] Remove overly-agressive asserts ...

Summary:
We were asserting in RegisterBankInfo if RBI.copyCost() returns
UINT_MAX.  This is OK for RegBankSelect::Mode::Fast since we only
try one instruction mapping and can't recover from this, but for
RegBankSelect::Mode::Greedy we will be considering multiple
instruction mappings, so we can recover if we see a UNIT_MAX copy
cost.

The copy cost for one pair of register banks in the AMDGPU backend
will be UNIT_MAX, so this patch will prevent AMDGPU tests from
breaking.

Reviewers: ab, qcolombet, t.p.northover, dsanders

Reviewed By: qcolombet

Subscribers: tpr, llvm-commits

Differential Revision: https://reviews.llvm.org/D33144

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303043 91177308-0d34-0410-b5e6-96231b3b80d8

2017-05-15 09:52:33 +00:00

..

CallLowering.cpp

[IR] Abstract away ArgNo+1 attribute indexing as much as possible

2017-05-03 18:17:31 +00:00

CMakeLists.txt

Revert "Localizer fun"

2017-04-01 01:26:21 +00:00

GlobalISel.cpp

Revert "Localizer fun"

2017-04-01 01:26:21 +00:00

InstructionSelect.cpp

ARM: Compute MaxCallFrame size early

2017-05-05 22:04:05 +00:00

InstructionSelector.cpp

[globalisel][tablegen] Compute available feature bits correctly.

2017-04-29 17:30:09 +00:00

IRTranslator.cpp

ARM: Compute MaxCallFrame size early

2017-05-05 22:04:05 +00:00

Legalizer.cpp

[GISel]:Skip legalizing Intermediate inst(with generic types)

2017-05-04 22:00:42 +00:00

LegalizerHelper.cpp

[GlobalISel] Legalize G_(S|U)DIV libcalls

2017-04-24 07:22:31 +00:00

LegalizerInfo.cpp

[GISel]: Fix undefined behavior while accessing DefaultAction map

2017-05-12 22:43:58 +00:00

LLVMBuild.txt

Revert "Get GlobalISel to build on Linux after r286407"

2016-11-16 22:24:59 +00:00

MachineIRBuilder.cpp

[GlobalISel] Support vector-of-pointers in LLT

2017-04-19 07:23:57 +00:00

RegBankSelect.cpp

[RegisterBankInfo] Remove overly-agressive asserts

2017-05-15 09:52:33 +00:00

RegisterBank.cpp

Move size and alignment information of regclass to TargetRegisterInfo

2017-04-24 18:55:33 +00:00

RegisterBankInfo.cpp

[RegisterBankInfo] Uniquely allocate instruction mapping.

2017-05-05 22:48:22 +00:00

Utils.cpp

[GISel]: Add a getConstantFPVRegVal utility

2017-05-12 22:54:52 +00:00