Commit Graph

10297 Commits

Author SHA1 Message Date
Duncan Sands 24a3724b04 Include the new file ThumbRegisterInfo.cpp to CMakeLists.txt
to make sure ThumbRegisterInfo.cpp are compiled and linked in.
Patch by Xerxes.

llvm-svn: 74421
2009-06-29 13:11:32 +00:00
Evan Cheng b23b50d54d Implement Thumb2 ldr.
After much back and forth, I decided to deviate from ARM design and split LDR into 4 instructions (r + imm12, r + imm8, r + r << imm12, constantpool). The advantage of this is 1) it follows the latest ARM technical manual, and 2) makes it easier to reduce the width of the instruction later. The down side is this creates more inconsistency between the two sub-targets. We should split ARM LDR instruction in a similar fashion later. I've added a README entry for this.

llvm-svn: 74420
2009-06-29 07:51:04 +00:00
Anton Korobeynikov 0f2158b35f Simplify a bit
llvm-svn: 74385
2009-06-27 12:59:03 +00:00
Anton Korobeynikov a1b5b18bd0 ARM refactoring. Step 2: split RegisterInfo
llvm-svn: 74384
2009-06-27 12:16:40 +00:00
Douglas Gregor 33400e3670 Add ThumbInstrInfo.cpp to the CMake makefiles
llvm-svn: 74382
2009-06-27 07:44:59 +00:00
Chris Lattner 1ec3afdc66 remove a bunch of fixmes (old checking code) and commonize all the
target-specific operand printing functionality.  Yay.

llvm-svn: 74379
2009-06-27 05:46:24 +00:00
Chris Lattner ae0acfcef0 pull @GOT, @GOTOFF, @GOTPCREL handling into isel from the asmprinter.
llvm-svn: 74378
2009-06-27 05:39:56 +00:00
Chris Lattner cce1589e4e simplify some code and eliminate the symbolicAddressesAreRIPRel() predicate.
llvm-svn: 74377
2009-06-27 05:24:12 +00:00
Chris Lattner d17366ae72 fix clang/test/CodeGenObjC/try.m, a basereg doesn't mean no global anymore.
llvm-svn: 74375
2009-06-27 04:50:14 +00:00
Chris Lattner 014e83d40d fix a bunch of failures in the X86-64 JIT by tolerating RIP as
a base register.  We just ignore it for now.

llvm-svn: 74374
2009-06-27 04:46:33 +00:00
Chris Lattner 9876bd8257 factor some logic out into a helper function, allow remat of loads from constant
globals.  This implements remat-constant.ll even without aggressive-remat.

llvm-svn: 74373
2009-06-27 04:38:55 +00:00
Chris Lattner fea81da433 Reimplement rip-relative addressing in the X86-64 backend. The new
implementation primarily differs from the former in that the asmprinter
doesn't make a zillion decisions about whether or not something will be
RIP relative or not.  Instead, those decisions are made by isel lowering
and propagated through to the asm printer.  To achieve this, we:

1. Represent RIP relative addresses by setting the base of the X86 addr
   mode to X86::RIP.
2. When ISel Lowering decides that it is safe to use RIP, it lowers to
   X86ISD::WrapperRIP.  When it is unsafe to use RIP, it lowers to
   X86ISD::Wrapper as before.
3. This removes isRIPRel from X86ISelAddressMode, representing it with
   a basereg of RIP instead.
4. The addressing mode matching logic in isel is greatly simplified.
5. The asmprinter is greatly simplified, notably the "NotRIPRel" predicate
   passed through various printoperand routines is gone now.
6. The various symbol printing routines in asmprinter now no longer infer
   when to emit (%rip), they just print the symbol.

I think this is a big improvement over the previous situation.  It does have
two small caveats though: 1. I implemented a horrible "no-rip" modifier for
the inline asm "P" constraint modifier.  This is a short term hack, there is
a much better, but more involved, solution.  2. I had to xfail an 
-aggressive-remat testcase because it isn't handling the use of RIP in the
constant-pool reading instruction.  This specific test is easy to fix without
-aggressive-remat, which I intend to do next.

llvm-svn: 74372
2009-06-27 04:16:01 +00:00
Evan Cheng eab9ca7ea6 Renaming for consistency.
llvm-svn: 74368
2009-06-27 02:26:13 +00:00
Chris Lattner a3260c0b1b Fix PR4466 by making fastisel set operand flags correctly.
llvm-svn: 74366
2009-06-27 01:31:51 +00:00
David Goodwin 5d8b6eef5a Remove outdated comment.
llvm-svn: 74357
2009-06-26 23:39:02 +00:00
David Goodwin 5285817490 When possible, use "mvn ra, rb" instead of "eor ra, rb, -1" because mvn has a narrow version and eor(i) does not.
llvm-svn: 74355
2009-06-26 23:13:13 +00:00
David Greene 8f6f72cc99 Add feature flags for AVX and FMA and fix some SSE4A feature flag
initialization problems.

llvm-svn: 74350
2009-06-26 22:46:54 +00:00
Evan Cheng 07b016856d Add x86 support for 'n' inline asm modifier. This will be handled target independently as part of MC work.
llvm-svn: 74336
2009-06-26 22:00:19 +00:00
Chris Lattner 3ef702e974 simplify printing of MO_ExternalSymbol in a non-pcrel context.
llvm-svn: 74334
2009-06-26 21:47:27 +00:00
Owen Anderson c043d13aeb Privatize some data.
llvm-svn: 74332
2009-06-26 21:45:04 +00:00
Anton Korobeynikov 99152f3a2c Split thumb-related stuff into separate classes.
Step 1: ARMInstructionInfo => {ARM,Thumb}InstructionInfo

llvm-svn: 74329
2009-06-26 21:28:53 +00:00
Chris Lattner 40bc649ce9 add %rip to the GR64 register class. Lets avoid allocating it to anything though! :)
llvm-svn: 74328
2009-06-26 21:25:00 +00:00
Chris Lattner 49ed726e46 Move all the TLS processing logic into isel, don't do it in asmprinter at all.
llvm-svn: 74327
2009-06-26 21:20:29 +00:00
Chris Lattner 899abc4655 make sure to propagate operand flags in SelectTLSADDRAddr properly.
llvm-svn: 74326
2009-06-26 21:18:37 +00:00
David Goodwin aa294c5593 Thumb-2 has CLZ.
llvm-svn: 74322
2009-06-26 20:47:43 +00:00
David Goodwin 35ee722d42 Use "adcs/sbcs" only when the carry-out is live, otherwise use "adc/sbc".
llvm-svn: 74321
2009-06-26 20:45:56 +00:00
Chris Lattner 76b3c06793 minor cleanup/framework changes.
llvm-svn: 74316
2009-06-26 20:00:05 +00:00
Owen Anderson 304d85be8c Privatize some variables.
llvm-svn: 74315
2009-06-26 19:48:37 +00:00
Chris Lattner 2ed6a9d7bd move magic for PIC constantpool references from asmprinter to isel.
llvm-svn: 74313
2009-06-26 19:22:52 +00:00
Chris Lattner 08d734448e use jump table operand flags in asm printer instead of "magic predicates"
llvm-svn: 74310
2009-06-26 18:55:01 +00:00
David Goodwin 5960e6d974 ADC used to implement adde should use "adcs" opcode instead of "adc".
llvm-svn: 74293
2009-06-26 18:07:25 +00:00
David Goodwin 0377f737ff Currently there is a pattern for the thumb-2 MOV 16-bit immediate instruction. That instruction cannot write the flags so it should use T2I instead of T2sI.
Also, added a pattern for the thumb-2 MOV of shifted immediate since that can encode immediates not encodable by the 16-bit immediate.

llvm-svn: 74288
2009-06-26 16:10:07 +00:00
Evan Cheng 1eda63715f Simplify predicate CarryDefIsUsed.
llvm-svn: 74277
2009-06-26 06:10:18 +00:00
Chris Lattner 1d3b65a6ae fix a pasto.
llvm-svn: 74275
2009-06-26 05:56:49 +00:00
Chris Lattner bd7e26db16 propagate target operand flags through addressing mode selection.
llvm-svn: 74272
2009-06-26 05:51:45 +00:00
Nick Lewycky 2dbc6476cb Escape the name of the module since it comes from the file name and may include
invalid characters like backslashes on Windows. Patch by James Abbatiello!

llvm-svn: 74265
2009-06-26 04:33:37 +00:00
Devang Patel 2cc6d183b2 Let's ignore MDStrings also!
llvm-svn: 74255
2009-06-26 02:26:12 +00:00
Daniel Dunbar e7d42501c2 Fix may-be-used-uninitialized warning.
llvm-svn: 74253
2009-06-26 02:03:52 +00:00
Chris Lattner 2aaad91bbe start adding logic in isel to determine asm printer semantics, step N of M.
llvm-svn: 74246
2009-06-26 00:43:52 +00:00
Evan Cheng e2c4d35f3e Add a note about commuting conditional move.
llvm-svn: 74241
2009-06-26 00:28:48 +00:00
Evan Cheng cf661fc12a These are done / no longer applicable.
llvm-svn: 74239
2009-06-26 00:25:27 +00:00
Evan Cheng 5bf9011c2d Mark a bunch of instructions commutable.
llvm-svn: 74237
2009-06-26 00:19:44 +00:00
Evan Cheng 9643ba8123 tst is also commutable.
llvm-svn: 74236
2009-06-26 00:19:07 +00:00
Owen Anderson b99db00b64 Committed the wrong version in my last commit.
llvm-svn: 74235
2009-06-26 00:17:05 +00:00
Owen Anderson 1efcb40c0f Privatize a static variable.
llvm-svn: 74234
2009-06-26 00:15:27 +00:00
Evan Cheng 97727a61f9 Select ADC, SBC, and RSC instead of the ADCS, SBCS, and RSCS when the carry bit def is not used.
llvm-svn: 74228
2009-06-25 23:34:10 +00:00
David Goodwin 16f357cccf Use MVN for ~t2_so_imm immediates.
llvm-svn: 74223
2009-06-25 23:11:21 +00:00
David Goodwin e85169cd1b Add Def/Use of CPSR for Thumb-1 instructions.
llvm-svn: 74219
2009-06-25 22:49:55 +00:00
Evan Cheng 7e687191fd Unbreak mingw build. Patch by Viktor Kutuzov.
llvm-svn: 74212
2009-06-25 22:04:44 +00:00
Evan Cheng c7ea8df67e ISD::ADDE / ISD::SUBE updates the carry bit so they should isle to ADCS and SBCS / RSCS.
llvm-svn: 74200
2009-06-25 20:59:23 +00:00