Sanjay Patel dc219dddde fix an invisible bug when combining repeated FP divisors ...

This patch fixes bugs that were exposed by the addition of fast-math-flags in the DAG:
r237046 ( http://reviews.llvm.org/rL237046 ):

1. When replacing a division node, it's not enough to RAUW.
   We should call CombineTo() to delete dead nodes and combine again.
2. Because we are changing the DAG, we can't return an empty SDValue
   after the transform. As the code comments say:

    Visitation implementation - Implement dag node combining for different node types.
    The semantics are as follows: Return Value:
      SDValue.getNode() == 0 - No change was made
      SDValue.getNode() == N - N was replaced, is dead and has been handled.
      otherwise - N should be replaced by the returned Operand.

The new test case shows no difference with or without this patch, but it will crash if
we re-apply r237046 or enable FMF via the current -enable-fmf-dag cl::opt.

Differential Revision: http://reviews.llvm.org/D9893



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241826 91177308-0d34-0410-b5e6-96231b3b80d8

2015-07-09 17:28:37 +00:00

..

CMakeLists.txt

…

DAGCombiner.cpp

fix an invisible bug when combining repeated FP divisors

2015-07-09 17:28:37 +00:00

FastISel.cpp

Make getByValTypeAlignment() taking DataLayout as an argument

2015-07-09 02:09:28 +00:00

FunctionLoweringInfo.cpp

Redirect DataLayout from TargetMachine to Module in ComputeValueVTs()

2015-07-09 01:57:34 +00:00

InstrEmitter.cpp

Redirect DataLayout from TargetMachine to Module in SelectionDAG

2015-07-07 19:07:19 +00:00

InstrEmitter.h

[SDAG] Give InstrEmitter hidden visibility

2015-07-01 14:55:10 +00:00

LegalizeDAG.cpp

Make TargetLowering::getShiftAmountTy() taking DataLayout as an argument

2015-07-09 02:09:20 +00:00

LegalizeFloatTypes.cpp

Make TargetLowering::getShiftAmountTy() taking DataLayout as an argument

2015-07-09 02:09:20 +00:00

LegalizeIntegerTypes.cpp

Reapply fixed r241790: Fix shift legalization and lowering for big constants.

2015-07-09 14:58:04 +00:00

LegalizeTypes.cpp

Make TargetLowering::getPointerTy() taking DataLayout as an argument

2015-07-09 02:09:04 +00:00

LegalizeTypes.h

Reapply fixed r241790: Fix shift legalization and lowering for big constants.

2015-07-09 14:58:04 +00:00

LegalizeTypesGeneric.cpp

Make TargetLowering::getPointerTy() taking DataLayout as an argument

2015-07-09 02:09:04 +00:00

LegalizeVectorOps.cpp

Make TargetLowering::getShiftAmountTy() taking DataLayout as an argument

2015-07-09 02:09:20 +00:00

LegalizeVectorTypes.cpp

Make TargetLowering::getPointerTy() taking DataLayout as an argument

2015-07-09 02:09:04 +00:00

LLVMBuild.txt

…

Makefile

…

ResourcePriorityQueue.cpp

…

ScheduleDAGFast.cpp

Convert a bunch of loops to foreach. NFC.

2015-06-26 19:18:49 +00:00

ScheduleDAGRRList.cpp

Convert a bunch of loops to foreach. NFC.

2015-06-26 19:18:49 +00:00

ScheduleDAGSDNodes.cpp

Convert a bunch of loops to foreach. NFC.

2015-06-26 19:18:49 +00:00

ScheduleDAGSDNodes.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

ScheduleDAGVLIW.cpp

Use 'override/final' instead of 'virtual' for overridden methods

2015-04-11 02:11:45 +00:00

SDNodeDbgValue.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SelectionDAG.cpp

Remove getDataLayout() from TargetLowering

2015-07-09 02:09:52 +00:00

SelectionDAGBuilder.cpp

Extended syntax of vector version of getelementptr instruction.

2015-07-09 07:42:48 +00:00

SelectionDAGBuilder.h

Redirect DataLayout from TargetMachine to Module in ComputeValueVTs()

2015-07-09 01:57:34 +00:00

SelectionDAGDumper.cpp

Rename llvm.frameescape and llvm.framerecover to localescape and localrecover

2015-07-07 22:25:32 +00:00

SelectionDAGISel.cpp

Make TargetLowering::getPointerTy() taking DataLayout as an argument

2015-07-09 02:09:04 +00:00

SelectionDAGPrinter.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

StatepointLowering.cpp

Redirect DataLayout from TargetMachine to Module in ComputeValueVTs()

2015-07-09 01:57:34 +00:00

StatepointLowering.h

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

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

TargetLowering.cpp

Make TargetLowering::getShiftAmountTy() taking DataLayout as an argument

2015-07-09 02:09:20 +00:00

TargetSelectionDAGInfo.cpp

Remove getDataLayout() from TargetSelectionDAGInfo (had no users)

2015-07-09 02:10:08 +00:00