Andrea Di Biagio 46dcddb350 Teach DAGCombiner how to fold a SIGN_EXTEND_INREG of a BUILD_VECTOR of ...

ConstantSDNodes (or UNDEFs) into a simple BUILD_VECTOR.

For example, given the following sequence of dag nodes:

  i32 C = Constant<1>
  v4i32 V = BUILD_VECTOR C, C, C, C
  v4i32 Result = SIGN_EXTEND_INREG V, ValueType:v4i1

The SIGN_EXTEND_INREG node can be folded into a build_vector since
the vector in input is a BUILD_VECTOR of constants.

The optimized sequence is:

  i32 C = Constant<-1>
  v4i32 Result = BUILD_VECTOR C, C, C, C

llvm-svn: 198084

2013-12-27 20:20:28 +00:00

..

CMakeLists.txt

…

DAGCombiner.cpp

Teach DAGCombiner how to fold a SIGN_EXTEND_INREG of a BUILD_VECTOR of

2013-12-27 20:20:28 +00:00

FastISel.cpp

Avoid illegal integer promotion in fastisel

2013-11-15 19:09:27 +00:00

FunctionLoweringInfo.cpp

[stackprotector] Use analysis from the StackProtector pass for stack layout in PEI a nd LocalStackSlot passes.

2013-12-19 03:17:11 +00:00

InstrEmitter.cpp

Fix patchpoint comments.

2013-11-19 05:05:43 +00:00

InstrEmitter.h

Revert "Give internal classes hidden visibility."

2013-09-11 18:05:11 +00:00

LegalizeDAG.cpp

Add support for legalizing SETNE/SETEQ by inverting the condition code and the result of the comparison.

2013-11-21 13:24:49 +00:00

LegalizeFloatTypes.cpp

Keep TBAA info when rewriting SelectionDAG loads and stores

2013-10-28 11:17:59 +00:00

LegalizeIntegerTypes.cpp

Keep TBAA info when rewriting SelectionDAG loads and stores

2013-10-28 11:17:59 +00:00

LegalizeTypes.cpp

[DAG] Refactor vector splitting code in SelectionDAG. No functional change intended.

2013-11-19 21:20:17 +00:00

LegalizeTypes.h

Correct word hyphenations

2013-12-05 05:44:44 +00:00

LegalizeTypesGeneric.cpp

SelectionDAG: Optimize expansion of vec_type = BITCAST scalar_type

2013-11-22 00:41:05 +00:00

LegalizeVectorOps.cpp

Keep TBAA info when rewriting SelectionDAG loads and stores

2013-10-28 11:17:59 +00:00

LegalizeVectorTypes.cpp

Correct word hyphenations

2013-12-05 05:44:44 +00:00

LLVMBuild.txt

…

Makefile

…

ResourcePriorityQueue.cpp

Rename variables for consistency.

2013-09-11 00:41:02 +00:00

ScheduleDAGFast.cpp

Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.

2013-07-14 04:42:23 +00:00

ScheduleDAGRRList.cpp

Fix spelling intruction -> instruction.

2013-09-28 11:46:15 +00:00

ScheduleDAGSDNodes.cpp

[PATCH] Fix PR17168 (DAG scheduler inserts DBG_VALUE before PHI with fast-isel)

2013-10-18 14:20:11 +00:00

ScheduleDAGSDNodes.h

Revert "Give internal classes hidden visibility."

2013-09-11 18:05:11 +00:00

ScheduleDAGVLIW.cpp

…

SDNodeDbgValue.h

Revert "Give internal classes hidden visibility."

2013-09-11 18:05:11 +00:00

SelectionDAG.cpp

Teach DAGCombiner how to fold a SIGN_EXTEND_INREG of a BUILD_VECTOR of

2013-12-27 20:20:28 +00:00

SelectionDAGBuilder.cpp

[stackprotector] Use analysis from the StackProtector pass for stack layout in PEI a nd LocalStackSlot passes.

2013-12-19 03:17:11 +00:00

SelectionDAGBuilder.h

Add addrspacecast instruction.

2013-11-15 01:34:59 +00:00

SelectionDAGDumper.cpp

Add addrspacecast instruction.

2013-11-15 01:34:59 +00:00

SelectionDAGISel.cpp

Add a machine code print in DEBUG() following instruction selection.

2013-12-17 02:01:10 +00:00

SelectionDAGPrinter.cpp

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TargetLowering.cpp

Lower stackmap intrinsics directly to their target opcode in the DAG builder.

2013-10-31 17:18:24 +00:00

TargetSelectionDAGInfo.cpp

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