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19 Commits

Author SHA1 Message Date
Eli Bendersky
3ef88c1833 Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu 
* Removed test/lib/llvm.exp - it is no longer needed 
* Deleted the dg.exp reading code from test/lit.cfg. There are no dg.exp files
  left in the test suite so this code is no longer required. test/lit.cfg is
  now much shorter and clearer 
* Removed a lot of duplicate code in lit.local.cfg files that need access to
  the root configuration, by adding a "root" attribute to the TestingConfig
  object. This attribute is dynamically computed to provide the same
  information as was previously provided by the custom getRoot functions. 
* Documented the config.root attribute in docs/CommandGuide/lit.pod

llvm-svn: 153408
 2012-03-25 09:02:19 +00:00
Eli Bendersky
4afdeeb682 Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed. 
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.

llvm-svn: 150664
 2012-02-16 06:28:33 +00:00
Dan Gohman
6e1bd851dc Change the default scheduler from Latency to ILP, since Latency 
is going away.

llvm-svn: 142810
 2011-10-24 17:45:02 +00:00
Wesley Peck
6263e05e6d Add scheduling information for the MBlaze backend. 
llvm-svn: 129311
 2011-04-11 22:31:52 +00:00
Chris Lattner
47e8019142 fix visitShift to properly zero extend the shift amount if the provided operand 
is narrower than the shift register.  Doing an anyext provides undefined bits in
the top part of the register.

llvm-svn: 125457
 2011-02-13 09:02:52 +00:00
Wesley Peck
2a376c535e Lower the MBlaze target specific calling conventions for "interrupt_handler" 
and "save_volatiles" correctly. This completes the custom calling convention
functionality changes for the MBlaze backend that were started in 121888.

llvm-svn: 121891
 2010-12-15 20:27:28 +00:00
Wesley Peck
f842b79b4b Missed some ADDI <-> ADDIK conversions in 121649. 
llvm-svn: 121652
 2010-12-12 22:53:14 +00:00
Devang Patel
6fe7fe8dd4 If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0. 
llvm-svn: 121059
 2010-12-06 22:39:26 +00:00
Wesley Peck
996c76c27e Fixed reversed operands for IDIV and CMP instructions in MBlaze backend. 
Use BRAD instead of BRD for indirect branches in MBlaze backend.

patch contributed by Jack Whitham!

llvm-svn: 121044
 2010-12-06 22:06:49 +00:00
Wesley Peck
b168ddedaa Fix a 16-bit immediate value detection bug in the MBlaze delay slot filler. 
Address more hazards in the MBlaze delay slot filler.

patch contributed by Jack Whitham!

llvm-svn: 121037
 2010-12-06 21:11:01 +00:00
Wesley Peck
911abf2bc0 Implement branch analysis in the MBlaze backend. 
llvm-svn: 119951
 2010-11-21 21:53:36 +00:00
Wesley Peck
d646a12f25 Recommit 116986 with capitalization typo fixed. 
llvm-svn: 116993
 2010-10-21 03:57:26 +00:00
Wesley Peck
3478e641b9 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
c50372298d 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
Dale Johannesen
4cdb545401 Split big test into multiple directories to cater to 
those who don't build all targets.

llvm-svn: 100688
 2010-04-07 20:43:35 +00:00
Wesley Peck
bc2c6d7b1b Re-committing the failed r97807 commit with changes to eliminate warnings. 
llvm-svn: 97891
 2010-03-06 23:23:12 +00:00
Chris Lattner
b2ed5cb501 revert r97807, it introduced build warnings. 
llvm-svn: 97869
 2010-03-06 04:32:46 +00:00
Wesley Peck
79c2f7afcc Reworking the stack layout that the MicroBlaze backend generates. 
The MicroBlaze backend was generating stack layouts that did not
conform correctly to the ABI. This update generates stack layouts
which are closer to what GCC does.

Variable arguments support was added as well but the stack layout
for varargs has not been finalized.

llvm-svn: 97807
 2010-03-05 15:26:02 +00:00
Wesley Peck
94cdac52e5 Adding the MicroBlaze backend. 
The MicroBlaze is a highly configurable 32-bit soft-microprocessor for
use on Xilinx FPGAs. For more information see:
http://www.xilinx.com/tools/microblaze.htm
http://en.wikipedia.org/wiki/MicroBlaze

The current LLVM MicroBlaze backend generates assembly which can be
compiled using the an appropriate binutils assembler.

llvm-svn: 96969
 2010-02-23 19:15:24 +00:00