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19 Commits

Author SHA1 Message Date
Jack Carter 84491abb20 Mips relocations R_MIPS_HIGHER and R_MIPS_HIGHEST. 
These 2 relocations gain access to the 
highest and the second highest 16 bits
of a 64 bit object.

R_MIPS_HIGHER %higher(A+S)
The %higher(x) function is [ (((long long) x + 0x80008000LL) >> 32) & 0xffff ]. 

R_MIPS_HIGHEST %highest(A+S)
The %highest(x) function is [ (((long long) x + 0x800080008000LL) >> 48) & 0xffff ]. 

llvm-svn: 161348
 2012-08-06 21:26:03 +00:00
Jack Carter 5ddcfda8ef The Mips specific relocation R_MIPS_GOT_DISP 
is used in cases where global symbols are 
directly represented in the GOT and we use an 
offset into the global offset table.

This patch adds direct object support for R_MIPS_GOT_DISP.

llvm-svn: 160183
 2012-07-13 19:15:47 +00:00
Jack Carter b9f9de93df This allows hello world to be compiled for Mips 64 direct object. 
It takes advantage of r159299 which introduces relocation support for N64. 
elf-dump needed to be upgraded to support N64 relocations as well.

This passes make check.

Jack

llvm-svn: 159301
 2012-06-27 22:48:25 +00:00
Akira Hatanaka 5fd22485a3 Fix coding style violations. Remove white spaces and tabs. 
llvm-svn: 158471
 2012-06-14 21:10:56 +00:00
Jim Grosbach c3b0427921 Allow MCCodeEmitter access to the target MCRegisterInfo. 
Add the MCRegisterInfo to the factories and constructors.

Patch by Tom Stellard <Tom.Stellard@amd.com>.

llvm-svn: 156828
 2012-05-15 17:35:52 +00:00
Bill Wendling f9774c3253 Remove some potential warnings about variables used uninitialized. 
llvm-svn: 155307
 2012-04-22 07:23:04 +00:00
Akira Hatanaka fe384a2c84 Retrieve and add the offset of a symbol in applyFixup rather than retrieve and 
set it in MipsMCCodeEmitter::getMachineOpValue. Assert in getMachineOpValue if
MachineOperand MO is of an unexpected type. 

llvm-svn: 153494
 2012-03-27 02:33:05 +00:00
Akira Hatanaka 0137dfe42a Incremental big endian patch by Jack Carter. 
These changes allow us to compile big endian from the command line for 32 bit
Mips targets. This patch will result in code and data actually being produced
in the correct endianess.

llvm-svn: 153153
 2012-03-21 00:52:01 +00:00
Akira Hatanaka 1ee768db53 Pass endian information to constructors. Define separate functions to create 
objects for big endian and little endian targets.

Patch by Jack Carter.

llvm-svn: 151788
 2012-03-01 01:53:15 +00:00
Jia Liu 9f6101191b remove Emacs-tag form .cpp files in Mips Backend, and fix some typo. 
llvm-svn: 150805
 2012-02-17 08:55:11 +00:00
Jia Liu dd6c1cd4e8 add Emacs tag and fix some comment error in file headers 
llvm-svn: 150775
 2012-02-17 01:23:50 +00:00
Owen Anderson d845d9d9e9 Widen the instruction encoder that TblGen emits to a 64 bits, which should accomodate every target I can think of offhand. 
llvm-svn: 148833
 2012-01-24 18:37:29 +00:00
David Blaikie 46a9f016c5 More dead code removal (using -Wunreachable-code) 
llvm-svn: 148578
 2012-01-20 21:51:11 +00:00
Akira Hatanaka e2eed9649e Local dynamic TLS model for direct object output. Create the correct TLS MIPS 
ELF relocations.

Patch by Jack Carter.

llvm-svn: 147118
 2011-12-22 01:05:17 +00:00
Bruno Cardoso Lopes 56b70de01b Variable cleanup. Based on past patch submittals variable names have 
been normalized and more descriptive comments added. Patch by Reed
Kotler and Jack Carter.

llvm-svn: 146088
 2011-12-07 22:35:30 +00:00
Bruno Cardoso Lopes 61e6d987bf Add a few moreLocal/Global R_MIPS_GOT related fixups and 
make the addend fixup code a bit more generic

Patch by Jack Carter.

llvm-svn: 145998
 2011-12-07 00:28:57 +00:00
Akira Hatanaka 049e9e4d22 This patch makes the following changes necessary for MIPS' direct code emission. 
- lower unaligned loads/stores.
- encode the size operand of instructions INS and EXT.
- emit relocation information needed for JAL (jump-and-link).  

llvm-svn: 145113
 2011-11-23 22:19:28 +00:00
Bruno Cardoso Lopes c85e3ff334 Mips MC object code emission improvements: 
"With this patch we can now generate runnable Mips code through LLVM
direct object emission. We have run numerous simple programs, both C
and C++ and with -O0 and -O3 from the output. The code is not production
ready, but quite useful for experimentation." Patch and message by
Jack Carter

llvm-svn: 144414
 2011-11-11 22:58:42 +00:00
Akira Hatanaka 750ecec7d5 Initial implementation of MipsMCCodeEmitter. 
Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140878
 2011-09-30 20:40:03 +00:00