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82 Commits

Author SHA1 Message Date
Tim Northover 8d2f52e035 GlobalISel: support zero-sized allocas 
All allocas must be at least 1 byte at the MachineIR level so we allocate just
one byte.

llvm-svn: 276897
 2016-07-27 17:47:54 +00:00
Tim Northover ad2b717f2c GlobalISel: add generic load and store instructions. 
Pretty straightforward, the only oddity is the MachineMemOperand (which it's
surprisingly difficult to share code for).

llvm-svn: 276799
 2016-07-26 20:23:26 +00:00
Tim Northover 756eca35cf GlobalISel: add specialized buildCopy function to MachineInstrBuilder. 
NFC.

llvm-svn: 276763
 2016-07-26 16:45:30 +00:00
Tim Northover cc5f76226b GlobalISel: give MachineInstrBuilder a uniform interface. NFC. 
Instead of an ad-hoc collection of "buildInstr" functions with varying numbers
of registers, this uses variadic templates to provide for as many regs as
needed!

Also make IRtranslator use new "buildBr" function instead of some weird generic
one that no-one else would really use.

llvm-svn: 276762
 2016-07-26 16:45:26 +00:00
Tim Northover 884b47ecfd GlobalISel: remove redundant ';'s. NFC 
llvm-svn: 276723
 2016-07-26 03:29:18 +00:00
Tim Northover 7c9eba90ff GlobalISel: add generic casts to IRTranslator 
This adds LLVM's 3 main cast instructions (inttoptr, ptrtoint, bitcast) to the
IRTranslator. The first two are direct translations (with 2 MachineInstr types
each). Since LLT discards information, a bitcast might become trivial and we
emit a COPY in those cases instead.

llvm-svn: 276690
 2016-07-25 21:01:29 +00:00
Tim Northover bd5054602e GlobalISel: implement alloca instruction 
llvm-svn: 276433
 2016-07-22 16:59:52 +00:00
Quentin Colombet 2b59eab79f [IRTranslator] Add G_SUB opcode. 
This commit adds a generic SUB opcode to global-isel.

llvm-svn: 276308
 2016-07-21 17:26:50 +00:00
Quentin Colombet 19df8a1aba [IRTranslator] Add comments to explain the ordering of the switch. NFC. 
Group arithmetic operations, bitwise operations, and branch operations.

llvm-svn: 276305
 2016-07-21 17:26:41 +00:00
Quentin Colombet 7bcc921dd8 [IRTranslator] Add G_AND opcode. 
This commit adds a generic AND opcode to global-isel.

llvm-svn: 276297
 2016-07-21 15:50:42 +00:00
Tim Northover 62ae568bbb GlobalISel: implement low-level type with just size & vector lanes. 
This should be all the low-level instruction selection needs to determine how
to implement an operation, with the remaining context taken from the opcode
(e.g. G_ADD vs G_FADD) or other flags not based on type (e.g. fast-math).

llvm-svn: 276158
 2016-07-20 19:09:30 +00:00
Tim Northover 72eebfa4b0 GlobalISel: freeze reserved regs after IRTranslator. 
We can freeze the registers after the MachineFrameInfo has been configured (by
telling it about calls, inline asm, ...). This doesn't happen at all yet, but
will be part of IR translation.

Fixes -verify-machineinstrs assertion.

llvm-svn: 275221
 2016-07-12 22:23:42 +00:00
Quentin Colombet f2a1909bb5 [IRTranslator] Support the translation of or. 
Now or instructions get translated into G_OR.

llvm-svn: 272433
 2016-06-10 20:50:35 +00:00
Quentin Colombet 13c55e07ed [IRTranslator] Refactor to expose a translateBinaryOp method. 
This method will be used for every binary operation.

NFC.

llvm-svn: 272431
 2016-06-10 20:50:18 +00:00
Tom Stellard b72a65ff53 [GlobalISel] Coding style and whitespace fixes 
Reviewers: qcolombet

Subscribers: joker.eph, llvm-commits, vkalintiris

Differential Revision: http://reviews.llvm.org/D19119

llvm-svn: 266342
 2016-04-14 17:23:33 +00:00
Quentin Colombet dd4b137364 [IRTranslator] Translate unconditional branches. 
llvm-svn: 263265
 2016-03-11 17:28:03 +00:00
Quentin Colombet e225e2541b [IRTranslator] Update getOrCreateVReg API to use references. 
A value that we want to keep in a virtual register cannot be null.
Reflect that in the API.

llvm-svn: 263263
 2016-03-11 17:27:54 +00:00
Quentin Colombet 000b580b13 [MachineIRBuilder] Rename the setter of MF for consistency with the getter. 
llvm-svn: 263262
 2016-03-11 17:27:51 +00:00
Quentin Colombet 91ebd71e26 [MachineIRBuilder] Rename the setter for MBB for consistency with the getter. 
llvm-svn: 263261
 2016-03-11 17:27:47 +00:00
Quentin Colombet 53237a9e64 [IRTranslator] Update getOrCreateBB API to use references. 
A null basic block is invalid, so just pass a reference.

llvm-svn: 263260
 2016-03-11 17:27:43 +00:00
Quentin Colombet 39293d3aaa [GlobalISel] Introduce initializer method to support start/stop-after features. 
llvm-svn: 262896
 2016-03-08 01:38:55 +00:00
Quentin Colombet ba2a01645b [GlobalISel] Re-apply r260922-260923 with MSVC-friendly code. 
Original message:
Get rid of the ifdefs in TargetLowering.
Introduce a new API used only by GlobalISel: CallLowering.
This API will contain target hooks dedicated to call lowering.

llvm-svn: 260998
 2016-02-16 19:26:02 +00:00
Aaron Ballman fc64ef1a15 Reverting r260922-260923; they cause link failures with MSVC. 
http://lab.llvm.org:8011/builders/lldb-x86-windows-msvc2015/builds/15436/steps/build/logs/stdio
http://bb.pgr.jp/builders/msbuild-llvmclang-x64-msc18-DA/builds/961/steps/build_llvm/logs/stdio

llvm-svn: 260972
 2016-02-16 15:29:06 +00:00
Quentin Colombet 1ce38545fb [GlobalISel] Get rid of the ifdefs in TargetLowering. 
Introduce a new API used only by GlobalISel: CallLowering.
This API will contain target hooks dedicated to call lowering.

llvm-svn: 260922
 2016-02-16 00:57:44 +00:00
Quentin Colombet ccd7725808 [IRTranslator] Use a single virtual register to represent any Value. 
PR26161.

llvm-svn: 260602
 2016-02-11 21:48:32 +00:00
Quentin Colombet fd9d0a07d8 [GlobalISel] Add the necessary plumbing to lower formal arguments. 
llvm-svn: 260579
 2016-02-11 19:59:41 +00:00
Quentin Colombet 74d7d2f00b [GlobalISel] Teach the IRTranslator how to lower returns. 
llvm-svn: 260562
 2016-02-11 18:53:28 +00:00
Quentin Colombet a7fae162e6 [GlobalISel][IRTranslator] Change the ownership of the MIRBuilder field. 
llvm-svn: 260551
 2016-02-11 17:53:23 +00:00
Quentin Colombet 4f0ec8d2b0 [GlobalISel][IRTranslator] Fix a typo in assert. 
llvm-svn: 260550
 2016-02-11 17:52:28 +00:00
Quentin Colombet 17c494b91c [GlobalISel][IRTranslator] Teach the pass how to translate Add instructions. 
llvm-svn: 260549
 2016-02-11 17:51:31 +00:00
Quentin Colombet 2ecff3bff2 [GlobalISel] More detailed skeleton for the IRTranslator. 
llvm-svn: 260456
 2016-02-10 22:59:27 +00:00
Quentin Colombet 105cf2b179 [GlobalISel] Add the proper cmake plumbing. 
This patch adds the necessary plumbing to cmake to build the sources related to
GlobalISel.

To build the sources related to GlobalISel, we need to add -DBUILD_GLOBAL_ISEL=ON.
By default, this is OFF, thus GlobalISel sources will not impact people that do
not explicitly opt-in.

Differential Revision: http://reviews.llvm.org/D15983

llvm-svn: 258344
 2016-01-20 20:58:56 +00:00