Sergey Dmitrouk a8dc0ee520 Erase constant dbgloc on reuse in PHI node ...

Basic block selection involves checking successor BBs for PHI nodes
that depend on the current BB.  In case such BBs are found, the value
being selected is a constant and such constant already exists in
current BB, it's value is reused.

This might lead to wrong locations in some situations, especially if
same constant value ends up being materialized twice in two different
ways, which discards that sharing and leaves us with wrong debug
location in the successor BB.

In code this involves the following sequence of calls:

 SelectionDAGBuilder::HandlePHINodesInSuccessorBlocks ->
 SelectionDAGBuilder::CopyValueToVirtualRegister ->
 SelectionDAGBuilder::getNonRegisterValue

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239089 91177308-0d34-0410-b5e6-96231b3b80d8

2015-06-04 20:48:40 +00:00

..

CMakeLists.txt

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DAGCombiner.cpp

[DAGCombiner] Fix wrong folding of a build_vector into a blend with zero.

2015-06-04 19:15:01 +00:00

FastISel.cpp

[Fast-ISel] Don't mark the first use of a remat constant as killed.

2015-05-09 00:51:03 +00:00

FunctionLoweringInfo.cpp

[WinEH] Start inserting state number stores for C++ EH

2015-05-28 22:00:24 +00:00

InstrEmitter.cpp

IR: Give 'DI' prefix to debug info metadata

2015-04-29 16:38:44 +00:00

InstrEmitter.h

…

LegalizeDAG.cpp

Add SDNodes for umin, umax, smin and smax.

2015-05-15 09:03:15 +00:00

LegalizeFloatTypes.cpp

Reapply r235977 "[DebugInfo] Add debug locations to constant SD nodes"

2015-04-28 14:05:47 +00:00

LegalizeIntegerTypes.cpp

SelectionDAG: fix logic for promoting shift types

2015-05-29 23:37:22 +00:00

LegalizeTypes.cpp

Reapply r235977 "[DebugInfo] Add debug locations to constant SD nodes"

2015-04-28 14:05:47 +00:00

LegalizeTypes.h

Added promotion to EXTRACT_SUBVECTOR operand.

2015-05-25 11:33:13 +00:00

LegalizeTypesGeneric.cpp

Reapply r235977 "[DebugInfo] Add debug locations to constant SD nodes"

2015-04-28 14:05:47 +00:00

LegalizeVectorOps.cpp

Add SDNodes for umin, umax, smin and smax.

2015-05-15 09:03:15 +00:00

LegalizeVectorTypes.cpp

Add SDNodes for umin, umax, smin and smax.

2015-05-15 09:03:15 +00:00

LLVMBuild.txt

…

Makefile

…

ResourcePriorityQueue.cpp

…

ScheduleDAGFast.cpp

…

ScheduleDAGRRList.cpp

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ScheduleDAGSDNodes.cpp

Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial types

2015-05-29 19:43:39 +00:00

ScheduleDAGSDNodes.h

…

ScheduleDAGVLIW.cpp

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SDNodeDbgValue.h

SDAG: Cleanup initialization of SDDbgValue, NFC

2015-05-22 05:35:53 +00:00

SelectionDAG.cpp

[sdag] Add the helper I most want to the DAG -- building a bitcast

2015-05-30 04:14:10 +00:00

SelectionDAGBuilder.cpp

Erase constant dbgloc on reuse in PHI node

2015-06-04 20:48:40 +00:00

SelectionDAGBuilder.h

[SelectionDAG] Delete SelectionDAGBuilder::removeValue. NFC.

2015-05-06 18:02:10 +00:00

SelectionDAGDumper.cpp

Add SDNodes for umin, umax, smin and smax.

2015-05-15 09:03:15 +00:00

SelectionDAGISel.cpp

Preserve the order of READ_REGISTER and WRITE_REGISTER

2015-05-18 16:42:10 +00:00

SelectionDAGPrinter.cpp

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StatepointLowering.cpp

[StatepointLowering] Support of the gc.relocates for invoke statepoints.

2015-05-20 11:37:25 +00:00

StatepointLowering.h

[StatepointLowering] Support of the gc.relocates for invoke statepoints.

2015-05-20 11:37:25 +00:00

TargetLowering.cpp

MC: Clean up MCExpr naming. NFC.

2015-05-30 01:25:56 +00:00

TargetSelectionDAGInfo.cpp

…