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c6c1106909
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2954 Commits

Author SHA1 Message Date
Chris Lattner
c6c1106909 Instead of storing operands as std::vector<Use>, just maintain a pointer 
and num operands in the User class.  this allows us to embed the operands
directly in the subclasses if possible.  For example, for binary operators
we store the two operands in the derived class.

The has several effects:
  1. it improves locality because the operands and instruction are together
  2. it makes accesses to operands faster (one less load) if you access them
     through the derived class pointer.  For example this:

Value *GetBinaryOperatorOp(BinaryOperator *I, int i) {
  return I->getOperand(i);
}

Was compiled to:

_Z19GetBinaryOperatorOpPN4llvm14BinaryOperatorEi:
        movl    4(%esp), %edx
        movl    8(%esp), %eax
        sall    $4, %eax
        movl    24(%edx), %ecx
        addl    %ecx, %eax
        movl    (%eax), %eax
        ret

and is now compiled to:

_Z19GetBinaryOperatorOpPN4llvm14BinaryOperatorEi:
        movl    8(%esp), %eax
        movl    4(%esp), %edx
        sall    $4, %eax
        addl    %edx, %eax
        movl    44(%eax), %eax
        ret

Accesses through "Instruction*" are unmodified.

   3. This reduces memory consumption (by about 3%) by eliminating 1 word of
      vector overhead and a malloc header on a seperate object.
   4. This speeds up gccas about 10% (both debug and release builds) on
      large things (such as 176.gcc).  For example, it takes a debug build
      from 172.9 -> 155.6s and a release gccas from 67.7 -> 61.8s

llvm-svn: 19883
 2005-01-29 00:29:39 +00:00
Chris Lattner
a7ce993d7f Do not clean up if the MappedFile was never used or if the client already 
closed the file.  This unbreaks the build.

llvm-svn: 19871
 2005-01-28 16:08:23 +00:00
Jeff Cohen
29092b4f26 Get VC++ compiling again 
llvm-svn: 19869
 2005-01-28 07:29:32 +00:00
Reid Spencer
dab05f06a4 Convert some old C-style casts to C++ style. 
llvm-svn: 19868
 2005-01-28 07:22:20 +00:00
Chris Lattner
d009d52fe5 Add some methods. 
llvm-svn: 19817
 2005-01-24 19:55:34 +00:00
Misha Brukman
b2961bf931 primitive' has no a' 
llvm-svn: 19808
 2005-01-24 16:28:03 +00:00
Chris Lattner
b7a64c49f0 Do not return true from isSized for things without a size (like functions and 
labels) even though they are concrete.  This fixes the DSA regressions from
last night.

llvm-svn: 19807
 2005-01-24 16:00:52 +00:00
Chris Lattner
766ad3378c This giant patch speeds up Type::isSized(). Before, this would have to search 
large nested types over and over again to determine if they are sized or not.
Now, isSized() is able to make snap decisions about all concrete types, which
are a common occurance (and includes all primitives).

On 177.mesa, this speeds up DSE from 39.5s -> 21.3s and GCSE from
13.2s -> 11.3s, reducing gccas time from 80s -> 61s (this is a debug build).

DSE and GCSE are still too slow on this testcase, but this is a simple
improvement.

llvm-svn: 19800
 2005-01-24 02:08:34 +00:00
Chris Lattner
65c4c91477 Add an accessor. 
llvm-svn: 19794
 2005-01-23 22:57:27 +00:00
Chris Lattner
38249d15df Expose more information from register allocation to passes that run after 
it.

llvm-svn: 19788
 2005-01-23 22:13:36 +00:00
Chris Lattner
519fcf19c2 Give SelectionDAG a TargetLowering instance instead of TM instance. 
llvm-svn: 19778
 2005-01-23 04:36:06 +00:00
Chris Lattner
18d4178fe6 Remove two dead methods and improve the comments for DiffFilesWithTolerance. 
Also, make DiffFilesWithTolerance take sys::Path objects instead of std::strings.

llvm-svn: 19770
 2005-01-23 03:30:39 +00:00
Chris Lattner
236f3c69b8 New method. 
llvm-svn: 19765
 2005-01-23 03:11:38 +00:00
Jeff Cohen
43692e25e9 Fix VC++ complaint 
llvm-svn: 19747
 2005-01-22 16:30:58 +00:00
Chris Lattner
9ee3bbc844 Keep track of node depth for each node 
llvm-svn: 19732
 2005-01-21 21:39:38 +00:00
Chris Lattner
bd8da4c80e Apparently destroyFile() now throws an exception. Since this class is 
designed to be put on the stack, that's not cool.  Catch and ignore the
exception.

llvm-svn: 19723
 2005-01-20 23:31:35 +00:00
Chris Lattner
8e17ad37f2 Eliminate the unimplemented ADDC/SUBB operations, add ADD_PARTS/SUB_PARTS instead. 
llvm-svn: 19713
 2005-01-20 18:50:39 +00:00
Chris Lattner
7005632b59 Add an accessor for targets that pass args in regs 
llvm-svn: 19702
 2005-01-19 20:19:58 +00:00
Chris Lattner
2a03fa3a5c Add a new method, described in the comment. 
llvm-svn: 19683
 2005-01-19 06:53:02 +00:00
Jeff Cohen
a3414ac8c7 Add missing data types for VC++ 
llvm-svn: 19680
 2005-01-19 05:08:31 +00:00
Chris Lattner
4938a7c8a1 Move all data members to the end of the class. 
Add a hook to find out how the target handles shift amounts that are out of
range.  Either they are undefined (the default), they mask the shift amount
to the size of the register (X86, Alpha, etc), or they extend the shift (PPC).

This defaults to undefined, which is conservatively correct.

llvm-svn: 19676
 2005-01-19 03:36:03 +00:00
Chris Lattner
0697def39d Keep track of the returned value type as well. 
llvm-svn: 19669
 2005-01-18 19:26:18 +00:00
Chris Lattner
818e819e43 Allow setcc operations to have non-bool types. 
llvm-svn: 19655
 2005-01-18 02:51:41 +00:00
Chris Lattner
e2fd07b43d Make methods private, add a method. 
llvm-svn: 19634
 2005-01-17 17:14:43 +00:00
Chris Lattner
783a9d8893 Add methods 
llvm-svn: 19627
 2005-01-17 02:24:59 +00:00
Chris Lattner
8dd332e4e5 Add comments 
Add fields to hold the result type of setcc operations and shift amounts.

llvm-svn: 19618
 2005-01-16 23:59:30 +00:00
Chris Lattner
e38f72316d Revamp supported ops. Instead of just being supported or not, we now keep 
track of how to deal with it, and provide the target with a hook that they
can use to legalize arbitrary operations in arbitrary ways.

llvm-svn: 19609
 2005-01-16 07:27:49 +00:00
Reid Spencer
5d058e0ec8 Provide support for HP/UX aCC compiler's variant of hash_map and hash_set 
(RogueWave). These are implemented in rw/stdex/hash_map.h and
rw/stdex/hash_set.h on HP/UX.

llvm-svn: 19600
 2005-01-16 02:58:39 +00:00
Chris Lattner
605b9a23a2 Improve compatiblity with HPUX on Itanium, patch by Duraid Madina 
llvm-svn: 19586
 2005-01-16 01:31:31 +00:00
Chris Lattner
dfb3741f64 Improve compatibility with aCC on HPUX. Patch by Duraid Madina 
llvm-svn: 19585
 2005-01-16 01:22:18 +00:00
Chris Lattner
1d0e1ffe02 Move some information out of LegalizeDAG into the generic Target interface. 
llvm-svn: 19581
 2005-01-16 01:10:58 +00:00
Chris Lattner
ee53940434 Add some helper methods. 
llvm-svn: 19570
 2005-01-15 06:52:18 +00:00
Chris Lattner
2f65e8798f Add new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators. 
llvm-svn: 19568
 2005-01-15 06:17:04 +00:00
Chris Lattner
98611ce291 Add a new target-independent code generator flag. 
llvm-svn: 19567
 2005-01-15 06:00:32 +00:00
Chris Lattner
3df2651c81 Change CopyFromReg to take and produce a chain node, allowing it to be used 
with physregs that are not live across the entire block.

llvm-svn: 19560
 2005-01-14 22:37:20 +00:00
Chris Lattner
c73bf62770 Start adding some new operators, give IMPLICIT_DEF a chain operand. 
llvm-svn: 19558
 2005-01-14 22:07:46 +00:00
Chris Lattner
eff86ebbc3 Add a method 
llvm-svn: 19540
 2005-01-13 23:26:28 +00:00
Chris Lattner
c6f23adb2a Add a method 
llvm-svn: 19538
 2005-01-13 22:58:50 +00:00
Chris Lattner
7a8788c9ac Add new ImplicitDef node, rename CopyRegSDNode class to RegSDNode. 
llvm-svn: 19535
 2005-01-13 20:50:02 +00:00
Chris Lattner
000509e7b0 Add a new node type, add comments. 
llvm-svn: 19525
 2005-01-13 17:58:35 +00:00
Chris Lattner
92c07c0dba New method. 
llvm-svn: 19516
 2005-01-12 18:37:33 +00:00
Chris Lattner
f01a5206ea Update comments to indicate CopyFrom/ToReg take physregs as well as vregs. 
llvm-svn: 19514
 2005-01-12 18:11:36 +00:00
Reid Spencer
710115945a Fix the documentation for executeAndWait so the argument comments are 
actually attributed to the arguments by doxygen.

llvm-svn: 19473
 2005-01-11 06:37:27 +00:00
Chris Lattner
1b9caa4504 Add MEMSET/MEMCPY/MEMMOVE operations. Fix a really bad bug in the vector 
SDNode ctor.

llvm-svn: 19462
 2005-01-11 05:56:17 +00:00
Chris Lattner
a942f987c0 Add support for bottom-up graphs. 
llvm-svn: 19446
 2005-01-11 00:24:59 +00:00
Chris Lattner
9ed0d66c8a Add a helper method. 
llvm-svn: 19442
 2005-01-10 23:25:04 +00:00
Chris Lattner
a4f7c88eb6 Add support for graph operations, and add a viewGraph method to SelectionDAG. 
llvm-svn: 19440
 2005-01-10 23:05:53 +00:00
Chris Lattner
3db5a50eb5 Add a helper method 
llvm-svn: 19439
 2005-01-10 23:05:07 +00:00
Jeff Cohen
8b03a55724 Apply feedback from Chris. 
llvm-svn: 19432
 2005-01-10 04:23:32 +00:00
Jeff Cohen
a7f1ae5dc0 Apply feed back from Chris: 
1. Rename createLoaderPass to CreateProfileLoaderPass
  2. Opt shouldn't use the pass registered in CodeGen.

llvm-svn: 19431
 2005-01-10 03:56:27 +00:00