Andrea Di Biagio 124ce3ab36 [DAGCombiner] Fix a crash caused by a missing check for legal type when trying to fold shuffles. ...

Verify that DAGCombiner does not crash when trying to fold a pair of shuffles
according to rule (added at r212539):
  (shuffle (shuffle A, Undef, M0), Undef, M1) -> (shuffle A, Undef, M2)

The DAGCombiner avoids folding shuffles if the resulting shuffle dag node
is not legal for the target. That means, the resulting shuffle must have
legal type and legal mask.

Before, the DAGCombiner only called method
'TargetLowering::isShuffleMaskLegal' to check if it was "safe" to fold according
to the above-mentioned rule. However, this caused a crash in the x86 backend
since method 'isShuffleMaskLegal' always expects to be called on a
legal vector type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212915 91177308-0d34-0410-b5e6-96231b3b80d8

2014-07-13 21:02:14 +00:00

..

CMakeLists.txt

…

DAGCombiner.cpp

[DAGCombiner] Fix a crash caused by a missing check for legal type when trying to fold shuffles.

2014-07-13 21:02:14 +00:00

FastISel.cpp

Avoid a warning from MSVC on "*/" in this code by inserting a space

2014-07-12 00:06:46 +00:00

FunctionLoweringInfo.cpp

[Modules] Remove potential ODR violations by sinking the DEBUG_TYPE

2014-04-22 02:02:50 +00:00

InstrEmitter.cpp

This reapplies r207235 with an additional bugfixes caught by the msan

2014-04-25 20:49:25 +00:00

InstrEmitter.h

…

LegalizeDAG.cpp

ARM: Allow __fp16 as a function arg or return type for AArch64

2014-07-11 13:33:46 +00:00

LegalizeFloatTypes.cpp

[Modules] Remove potential ODR violations by sinking the DEBUG_TYPE

2014-04-22 02:02:50 +00:00

LegalizeIntegerTypes.cpp

Make it possible for ints/floats to return different values from getBooleanContents()

2014-07-10 10:18:12 +00:00

LegalizeTypes.cpp

Make it possible for ints/floats to return different values from getBooleanContents()

2014-07-10 10:18:12 +00:00

LegalizeTypes.h

[x86,SDAG] Introduce any- and sign-extend-vector-inreg nodes analogous

2014-07-10 12:32:32 +00:00

LegalizeTypesGeneric.cpp

Fix ppcf128 component access on little-endian systems

2014-07-03 15:06:47 +00:00

LegalizeVectorOps.cpp

[x86,SDAG] Introduce any- and sign-extend-vector-inreg nodes analogous

2014-07-10 12:32:32 +00:00

LegalizeVectorTypes.cpp

[x86,SDAG] Introduce any- and sign-extend-vector-inreg nodes analogous

2014-07-10 12:32:32 +00:00

LLVMBuild.txt

LLVMBuild: Remove trailing newline, which irked me.

2011-12-12 19:48:00 +00:00

Makefile

…

ResourcePriorityQueue.cpp

Fix 'platform-specific' hyphenations

2014-06-30 18:57:16 +00:00

ScheduleDAGFast.cpp

[Modules] Remove potential ODR violations by sinking the DEBUG_TYPE

2014-04-22 02:02:50 +00:00

ScheduleDAGRRList.cpp

The hazard recognizer only needs a subtarget, not a target machine

2014-06-13 22:38:52 +00:00

ScheduleDAGSDNodes.cpp

Convert SelectionDAG::MorphNodeTo to use ArrayRef.

2014-04-27 19:21:16 +00:00

ScheduleDAGSDNodes.h

[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.

2014-04-16 04:21:27 +00:00

ScheduleDAGVLIW.cpp

The hazard recognizer only needs a subtarget, not a target machine

2014-06-13 22:38:52 +00:00

SDNodeDbgValue.h

This reapplies r207235 with an additional bugfixes caught by the msan

2014-04-25 20:49:25 +00:00

SelectionDAG.cpp

[x86,SDAG] Introduce any- and sign-extend-vector-inreg nodes analogous

2014-07-10 12:32:32 +00:00

SelectionDAGBuilder.cpp

[FastISel] Make isInTailCallPosition independent of SelectionDAG.

2014-07-11 20:50:47 +00:00

SelectionDAGBuilder.h

Fix 'platform-specific' hyphenations

2014-06-30 18:57:16 +00:00

SelectionDAGDumper.cpp

[x86,SDAG] Introduce any- and sign-extend-vector-inreg nodes analogous

2014-07-10 12:32:32 +00:00

SelectionDAGISel.cpp

Revert "Introduce a string_ostream string builder facilty"

2014-06-26 22:52:05 +00:00

SelectionDAGPrinter.cpp

Revert "Introduce a string_ostream string builder facilty"

2014-06-26 22:52:05 +00:00

TargetLowering.cpp

SelectionDAG: Factor FP_TO_SINT lower code out of DAGLegalizer

2014-07-10 22:40:18 +00:00

TargetSelectionDAGInfo.cpp

Have TargetSelectionDAGInfo take a DataLayout initializer rather than

2014-06-06 19:04:48 +00:00