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23 Commits

Author SHA1 Message Date
Chris Lattner
bc0b9f70ae start inferring 'no side effects'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45822 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 05:39:30 +00:00
Chris Lattner
2d51a4ce8f remove some old hacky code that tried to infer whether a store 
occured in a pattern, but failed miserably.  The new code works for
any instruction that has a store in its pattern, including all the 
x86 mem op mem instructions.

The only target-independent code that uses this is branch folding,
so this won't change anything in practice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45648 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 02:16:26 +00:00
Chris Lattner
a529a37fbd rearrange some code to allow inferring instr info from the pattern of the instr, but don't do so yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45647 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 01:53:37 +00:00
Chris Lattner
5fbe275304 final cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45644 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 01:21:51 +00:00
Chris Lattner
ef8339b11a further simplifications and cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45643 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 01:20:13 +00:00
Chris Lattner
951740afb4 simplify some code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45642 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 01:12:44 +00:00
Chris Lattner
7b11712ef2 split enum emission out from InstrInfoEmitter into it's own tblgen backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45640 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 00:49:05 +00:00
Chris Lattner
3060910e29 remove attributions from utils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45419 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 20:37:13 +00:00
Chris Lattner
a0cca4ae26 simplify the way operand flags and constraints are handled, making it easier 
to extend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31481 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-06 23:49:51 +00:00
Jeff Cohen
d41b30def3 Unbreak VC++ build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31464 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-05 19:31:28 +00:00
Evan Cheng
e2ba897588 Add operand constraints to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31333 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 00:27:05 +00:00
Jim Laskey
b5a0c0ee05 Emit itinerary class in instruction info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24122 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-31 17:16:46 +00:00
Chris Lattner
366080c5e6 Switch more code over to using getValueAsListOfDefs. Look at all the -'s. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24074 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 22:59:53 +00:00
Chris Lattner
d5aa3e26bb Emit real operand info for instructions. This currently works but is bad 
in one way: the generated tables require dynamic initialization for the
register classes.  This will be fixed in a future patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22919 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 18:46:26 +00:00
Chris Lattner
a3ac88d8ab When emitting implicit use/def lists, only emit each unique list once. Though 
LLVM is able to merge identical static const globals, GCC isn't, and this caused
some bloat in the generated data.  This has a marginal effect on PPC, shrinking
the implicit sets from 10->4, but shrinks X86 from 179 to 23, a much bigger
reduction.

This should speed up the register allocator as well by reducing the dcache
footprint for this static data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22879 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 21:36:47 +00:00
Misha Brukman
3da94aec4d Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21428 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 00:00:37 +00:00
Chris Lattner
1fca5ff62b Convert 'struct' to 'class' in various places to adhere to the coding standards 
and work better with VC++.  Patch contributed by Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17281 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-27 16:14:51 +00:00
Chris Lattner
ec3524064c Add, and start using, the CodeGenInstruction class. This class represents 
an instance of the Instruction tablegen class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15385 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 05:04:00 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-11 22:41:34 +00:00
John Criswell
01d45827a1 Added LLVM copyright header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9305 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 20:20:30 +00:00
Chris Lattner
bc01723605 Switch code over to being a TableGenBackend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7627 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-06 04:32:07 +00:00
Chris Lattner
a3ae6143c1 Finish the instruction info emitter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7543 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-03 21:57:51 +00:00
Chris Lattner
33ccf7edff Initial checkin of Instruction emitter, which just produces enum values so far 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7515 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-03 17:24:10 +00:00