Sanjay Patel 02638731c1 transform obscured FP sign bit ops into a fabs/fneg using TLI hook ...

This is effectively a revert of:
http://reviews.llvm.org/rL249702 - [InstCombine] transform masking off of an FP sign bit into a fabs() intrinsic call (PR24886)
and:
http://reviews.llvm.org/rL249701 - [ValueTracking] teach computeKnownBits that a fabs() clears sign bits
and a reimplementation as a DAG combine for targets that have IEEE754-compliant fabs/fneg instructions.

This is intended to resolve the objections raised on the dev list:
http://lists.llvm.org/pipermail/llvm-dev/2016-April/098154.html
and:
https://llvm.org/bugs/show_bug.cgi?id=24886#c4

In the interest of patch minimalism, I've only partly enabled AArch64. PowerPC, MIPS, x86 and others can enable later.

Differential Revision: http://reviews.llvm.org/D19391

llvm-svn: 271573

2016-06-02 20:01:37 +00:00

..

CostTable.h

Remove templates from CostTableLookup functions. All instantiations had the same type.

2015-10-28 04:02:12 +00:00

GenericOpcodes.td

[GlobalISel][Target] Add an opcode for unconditional branch.

2016-03-11 17:27:38 +00:00

Target.td

[TableGen] AsmMatcher: support for default values for optional operands

2016-05-06 11:31:17 +00:00

TargetCallingConv.h

[NFC] Header cleanup

2016-04-18 09:17:29 +00:00

TargetCallingConv.td

Swift Calling Convention: add swifterror attribute.

2016-04-01 21:41:15 +00:00

TargetFrameLowering.h

[PEI, AArch64] Use empty spaces in stack area for local stack slot allocation.

2016-06-02 16:22:07 +00:00

TargetInstrInfo.h

[foldMemoryOperand()] Pass LiveIntervals to enable liveness check.

2016-05-10 08:09:37 +00:00

TargetIntrinsicInfo.h

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

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

TargetItinerary.td

Hexagon V60/HVX DFA scheduler support

2015-11-21 20:00:45 +00:00

TargetLowering.h

transform obscured FP sign bit ops into a fabs/fneg using TLI hook

2016-06-02 20:01:37 +00:00

TargetLoweringObjectFile.h

CodeGen: Use PLT relocations for relative references to unnamed_addr functions.

2016-04-22 20:40:10 +00:00

TargetMachine.h

Factor PrologEpilogInserter around spilling, frame finalization, and scavenging

2016-05-17 08:49:59 +00:00

TargetOpcodes.def

Introduce a "patchable-function" function attribute

2016-04-19 05:24:47 +00:00

TargetOpcodes.h

[Target] Add a helper function to check if an opcode is invalid after isel.

2016-02-11 21:16:56 +00:00

TargetOptions.h

Add RelaxELFRelocations to TargetOptions.h.

2016-05-29 01:57:20 +00:00

TargetRecip.h

Fix some Clang-tidy modernize-deprecated-headers and Include What You Use warnings; other minor fixes.

2016-05-09 23:11:38 +00:00

TargetRegisterInfo.h

[Target] Don't return a std::string in getRegAsmName

2016-05-19 20:03:16 +00:00

TargetSchedule.td

Remove MinLatency in SchedMachineModel. NFC.

2016-04-26 00:37:46 +00:00

TargetSelectionDAG.td

Strengthen type assertion for ISD::VSELECT ensuring that the condition has the name number of elements as the destination type.

2016-05-18 06:55:55 +00:00

TargetSubtargetInfo.h

[Target] Remove a deprecated comment.

2016-04-05 23:04:54 +00:00