Ahmed Bougacha 931904d777 [GlobalISel] Don't select trivially dead instructions. ...

Folding instructions when selecting can cause them to become dead.
Don't select these dead instructions (if they don't have other side
effects, and don't define physical registers).

Preserve existing tests by adding COPYs.

In some tests, the G_CONSTANT vregs never get constrained to a class:
the only use of the vreg was folded into another instruction, so the
G_CONSTANT, now dead, never gets selected.

llvm-svn: 298224

2017-03-19 16:13:00 +00:00

..

CallLowering.cpp

[GlobalISel] Use ImmutableCallSite instead of templates. NFC.

2017-03-10 00:25:44 +00:00

CMakeLists.txt

Try to prevent build breakage by touching a CMakeLists.txt.

2017-01-25 02:55:24 +00:00

GlobalISel.cpp

…

InstructionSelect.cpp

[GlobalISel] Don't select trivially dead instructions.

2017-03-19 16:13:00 +00:00

InstructionSelector.cpp

[GlobalISel] Move method definition to the proper file. NFC.

2017-03-19 16:12:48 +00:00

IRTranslator.cpp

[GlobalISel] Avoid translating synthetic constants to new G_CONSTANTS.

2017-03-15 19:21:11 +00:00

Legalizer.cpp

[GlobalISel] Make LegalizerInfo accessible in LegalizerHelper

2017-03-10 18:34:57 +00:00

LegalizerHelper.cpp

[GlobalISel] LegalizerHelper: Lower (G_FSUB X, Y) to (G_FADD X, (G_FNEG Y))

2017-03-10 21:25:09 +00:00

LegalizerInfo.cpp

[GlobalISel] Add default action for G_FNEG

2017-03-08 18:09:14 +00:00

LLVMBuild.txt

Revert "Get GlobalISel to build on Linux after r286407"

2016-11-16 22:24:59 +00:00

MachineIRBuilder.cpp

[GlobalISel] Translate insertelement and extractelement

2017-03-10 19:08:28 +00:00

RegBankSelect.cpp

[GlobalISel] Emit opt remarks on isel fallbacks.

2017-02-23 21:05:42 +00:00

RegisterBank.cpp

Cleanup dump() functions.

2017-01-28 02:02:38 +00:00

RegisterBankInfo.cpp

[GlobalISel] Ignore %noreg when applying default regbank mapping.

2017-03-07 20:34:23 +00:00

Utils.cpp

[GlobalISel] Emit opt remarks on isel fallbacks.

2017-02-23 21:05:42 +00:00