Commit Graph

109 Commits

Author SHA1 Message Date
Wesley Peck 11ab8ddf10 Teaching MBlaze backend how to reverse branch conditions.
llvm-svn: 120707
2010-12-02 16:17:11 +00:00
Rafael Espindola 8a3a7923eb Define generic 1, 2 and 4 byte pc relative relocations. They are common
and at least the 4 byte one will be needed to implement the .cfi_* directives.

llvm-svn: 120240
2010-11-28 14:17:56 +00:00
Rafael Espindola bf4a4e4ad9 Remove the unused TheTarget member.
llvm-svn: 120168
2010-11-26 04:24:21 +00:00
Wesley Peck 8ad3b25633 Updating MBlaze .mask and .frame directives to match GCC's output and fixing regression introduced in 120095 by checking MCStreamer::hasRawTextSupport.
llvm-svn: 120097
2010-11-24 16:32:35 +00:00
Wesley Peck 51917b868d 1. Fixing error where basic block labels were not being printed out when they need to be for the MBlaze backend because AsmPrinter::isBlockOnlyReachableByFallthrough does not take into account delay slots.
2. Re-adding .mask and .frame directives in printed assembly.
3. Adding .ent and .end directives in printed assembly.
4. Minor cleanups to MBlaze backend.

llvm-svn: 120095
2010-11-24 15:39:32 +00:00
Wesley Peck 527da1b6e2 Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.
llvm-svn: 119990
2010-11-23 03:31:01 +00:00
Wesley Peck 7699d6cfe9 Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests.
llvm-svn: 119952
2010-11-21 22:06:28 +00:00
Wesley Peck f1d3800e65 Implement branch analysis in the MBlaze backend.
llvm-svn: 119951
2010-11-21 21:53:36 +00:00
Wesley Peck f4efd582ad Make it a little bit more explicit that the MBlaze backend only supports upto
32-bit immediate values.

llvm-svn: 119950
2010-11-21 21:39:46 +00:00
Wesley Peck 7493e30d42 Fix an error in the MBlaze delay slot filler where instructions that already
fill a delay slot are moved to fill a different delay slot.

llvm-svn: 119949
2010-11-21 21:36:12 +00:00
Anton Korobeynikov 0eecf5d201 Move hasFP() and few related hooks to TargetFrameInfo.
llvm-svn: 119740
2010-11-18 21:19:35 +00:00
Rafael Espindola 7a2cd8b540 make isVirtualSection a virtual method on MCSection. Chris' suggestion.
llvm-svn: 119547
2010-11-17 20:03:54 +00:00
Chris Lattner 63274cbc5d add fields to the .td files unconditionally, simplifying tblgen a bit.
Switch the ARM backend to use 'let' instead of 'set' with this change.

llvm-svn: 119120
2010-11-15 05:19:05 +00:00
Anton Korobeynikov 51d2e9ca29 Attempt to unbreak cmake-based builds
llvm-svn: 119098
2010-11-15 00:48:12 +00:00
Anton Korobeynikov f7183edb59 First step of huge frame-related refactoring: move emit{Prologue,Epilogue} out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place
llvm-svn: 119097
2010-11-15 00:06:54 +00:00
Daniel Dunbar fe0c28f4db MC: Simplify Mach-O and ELF object writer implementations.
- What was I thinking?????

llvm-svn: 118992
2010-11-13 07:33:40 +00:00
Wesley Peck 82471189b7 Fixed error and re-enabled MBlaze MC disassembler tests.
llvm-svn: 118987
2010-11-13 05:48:21 +00:00
Wesley Peck b3099e6863 1. Adding test cases for MBlaze MC disassembler.
2. Fixing several errors in disassembler uncovered by test cases.
3. Fixing invalid encoding of PCMPEQ and PCMPNE uncovered by test cases.

llvm-svn: 118969
2010-11-13 02:37:59 +00:00
Wesley Peck 240162629c 1. Adding missing immediate mode asm parser test cases.
2. Fixing improper immediate mode reverse subtract.

llvm-svn: 118948
2010-11-13 00:03:46 +00:00
Wesley Peck 4b074b8995 Fixing improperly encoded reverse subtract instructions in MBlaze backend.
llvm-svn: 118943
2010-11-12 23:41:10 +00:00
Wesley Peck c542248602 1. Finishing MBlaze MC asm parser test cases
2. Parsing .word directive in MBlaze asm parser
3. Fixing hack where memory instructions reversed order of last two parameters
4. Fixing many improperly encoded instructions
5. Support parsing special instructions (MFS,MTS,etc.)
6. Removing unused functions from inst printer

llvm-svn: 118941
2010-11-12 23:30:17 +00:00
Wesley Peck 8abdf4b6ea The BRK instruction in the MicroBlaze is a branch-and-link.
llvm-svn: 118848
2010-11-11 22:21:08 +00:00
Wesley Peck bf65066a37 Fix tblgen instruction errors exposed by MC asm parser tests
Fix minimum 16-bit signed value error exposed by MC asm parser tests
Add initial MC asm parser tests for the MBlaze backend

llvm-svn: 118844
2010-11-11 21:40:53 +00:00
Wesley Peck d1a6f5a384 Fixed some bugs in MBlaze asm parser that were introduced when removing OwningPtrs from the code.
llvm-svn: 118807
2010-11-11 18:41:33 +00:00
Wesley Peck fc82674b9c Adding working version of assembly parser for the MBlaze backend
Major cleanup of whitespace and formatting issues in MBlaze backend

llvm-svn: 118434
2010-11-08 19:40:01 +00:00
Duncan Sands 71049f78ed In the calling convention logic, ValVT is always a legal type,
and as such can be represented by an MVT - the more complicated
EVT is not needed.  Use MVT for ValVT everywhere.

llvm-svn: 118245
2010-11-04 10:49:57 +00:00
Duncan Sands f5dda01f33 Inside the calling convention logic LocVT is always a simple
value type, so there is no point in passing it around using
an EVT.  Use the simpler MVT everywhere.  Rather than trying
to propagate this information maximally in all the code that
using the calling convention stuff, I chose to do a mainly
low impact change instead.

llvm-svn: 118167
2010-11-03 11:35:31 +00:00
Chris Lattner 9c9bfb6870 per a suggestion by Frits van Bommel, mark all MBlaze Pseudo
instructions as isCodeGenOnly in the parent class instead of
sprinkling it throughout the .td files.

llvm-svn: 118125
2010-11-02 23:57:05 +00:00
Chris Lattner 15977afb02 mark a few codegenonly instructions.
llvm-svn: 118092
2010-11-02 22:26:33 +00:00
Chris Lattner 33fc3e095b reapply r117858 with apparent editor malfunction fixed (somehow I
got a dulicated line).

llvm-svn: 117860
2010-10-31 19:10:56 +00:00
Chris Lattner e59eef3dd1 revert r117858 while I check out a failure I missed.
llvm-svn: 117859
2010-10-31 19:05:32 +00:00
Chris Lattner 9293008e90 the asm matcher can't handle operands with modifiers (like ${foo:bar}).
Instead of silently ignoring these instructions, emit a hard error and
force the target author to either refactor the target or mark the 
instruction 'isCodeGenOnly'.

Mark a few instructions in ARM and MBlaze as isCodeGenOnly the are 
doing this.

llvm-svn: 117858
2010-10-31 18:48:12 +00:00
John Thompson e8360b7182 Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.
llvm-svn: 117667
2010-10-29 17:29:13 +00:00
Wesley Peck e9b429e96f Adding disassembler to the MicroBlaze backend.
llvm-svn: 117420
2010-10-27 00:23:01 +00:00
Wesley Peck 1851090515 Making the e_machine configurable by the target backend in ELFObjectWriter.
llvm-svn: 117099
2010-10-22 15:52:49 +00:00
Wesley Peck a7f6150c14 Adding initial AsmParser implementation for the MBlaze backend. It is
mostly based on the ARM AsmParser at this time and is not particularly
functional.

Changed the MBlaze data layout from:
    "E-p:32:32-i8:8:8-i16:16:16-i64:32:32-f64:32:32-v64:32:32-v128:32:32-n32"
to:
    "E-p:32:32:32-i8:8:8-i16:16:16"
because the MicroBlaze doesn't have i64, f64, v64, or v128 data types.

Cleaned up the MBlaze source code:
    1. The floating point register class has been removed. The
       MicroBlaze does not have floating point registers. Floating
       point values are simply stored in integer registers.
    2. Renaming the CPURegs register class to GPR to reflect the
       standard naming.
    3. Removing a lot of stale code from AsmPrinter after
       the conversion to InstPrinter.
    4. Simplified sign extended loads by marking them as
       expanded in ISelLowering.

llvm-svn: 117054
2010-10-21 19:48:38 +00:00
Wesley Peck f7ecd9e8bb Removing stale AsmPrinter directory from MicroBlaze backend.
llvm-svn: 116998
2010-10-21 05:05:06 +00:00
Oscar Fuentes 3e79a47a7a Deleted lib/Target/MBlaze/AsmPrinter/CMakeLists.txt. This way the
CMake build does not try to build that library, which collides with
MBlaze/InstPrinter.

llvm-svn: 116997
2010-10-21 05:01:26 +00:00
Wesley Peck c16f77fb27 Recommit 116986 with capitalization typo fixed.
llvm-svn: 116993
2010-10-21 03:57:26 +00:00
Wesley Peck 078db00f1d Reverting the commit 116986. It was breaking the build on llvm-x86_64-linux though it
compiles on OS X. I'll ensure that it builds on a linux machine before committing
again.

llvm-svn: 116991
2010-10-21 03:34:22 +00:00
Wesley Peck f608ac4db9 Major update of the MicroBlaze backend. The new features are:
1. A delay slot filler that searches for valid instructions
       to fill the delay slot with. Previously NOPs would always
       be inserted into delay slots.
    2. Support for MC based instruction printer added.
    3. Support for MC based machine code generation and ELF
       file generation. ELF file generation does not yet
       completely work as much of the ELF support infrastructure
       is still x86/x86-64 specific.
    4. General clean up of the MBlaze backend code. Much of the
       tablegen code has been cleanup and simplified.

Bug Fixes:
    1. Removed duplicate periods from subtarget feature descriptions.
    2. Many of the instructions had bad machine code information
       in the tablegen files. Much of this has been fixed.

llvm-svn: 116986
2010-10-21 03:09:55 +00:00
Evan Cheng 0097dd0d5a Add support to model pipeline bypass / forwarding.
llvm-svn: 115005
2010-09-28 23:50:49 +00:00
Oscar Fuentes b4b12535e8 Removed a bunch of unnecessary target_link_libraries.
llvm-svn: 114999
2010-09-28 22:39:14 +00:00
Chris Lattner 0e023ea02a fix a long standing wart: all the ComplexPattern's were being
passed the root of the match, even though only a few patterns
actually needed this (one in X86, several in ARM [which should
be refactored anyway], and some in CellSPU that I don't feel 
like detangling).   Instead of requiring all ComplexPatterns to
take the dead root, have targets opt into getting the root by
putting SDNPWantRoot on the ComplexPattern.

llvm-svn: 114471
2010-09-21 20:31:19 +00:00
Chris Lattner 802527adad eliminate some uses of the getStore overload.
llvm-svn: 114453
2010-09-21 17:50:43 +00:00
Chris Lattner 7727d05dbb convert the targets off the non-MachinePointerInfo of getLoad.
llvm-svn: 114410
2010-09-21 06:44:06 +00:00
Chris Lattner 55118e7224 remove dead code, mblaze uses SelectAddrRegImm/SelectAddrRegReg,
not SelectAddr

llvm-svn: 113072
2010-09-04 18:02:47 +00:00
Jakob Stoklund Olesen d7dcbb57fb Remove Predicate_* calls from MBlaze and XCore
llvm-svn: 112920
2010-09-03 00:35:16 +00:00
Jim Grosbach 6a77066913 Simplify eliminateFrameIndex() interface back down now that PEI doesn't need
to try to re-use scavenged frame index reference registers. rdar://8277890

llvm-svn: 112241
2010-08-26 23:32:16 +00:00
Chris Lattner 2edfdd289f remove some dead code.
llvm-svn: 111345
2010-08-18 02:42:11 +00:00