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415 Commits

Author SHA1 Message Date
Chris Lattner
b8ffbe6966 Ensure definate initialization 
llvm-svn: 4263
 2002-10-22 23:34:11 +00:00
Chris Lattner
dfc8fbf16b - Two minor improvements to the MachineInstr class to reduce footprint and 
overhead: Merge 3 parallel vectors into 1, change regsUsed hash_set to be a
    bitvector.  Sped up LLC a little less than 10% in a debug build!

llvm-svn: 4261
 2002-10-22 23:16:21 +00:00
Vikram S. Adve
3a54b695ce Significant improvement: GEP used by a load or store no longer generates 
a separate ADD; instead just use the indexed load/store instruction!
Also, a bug fix: folding a GEP with a leading non-zero index with
its predecessor was incorrect: now it only happens if the predecessor
is pointing to an indexable type (aka SequentialType).

llvm-svn: 4168
 2002-10-14 16:30:55 +00:00
Vikram S. Adve
e18a54c249 Use vectors instead of hash_maps for issueGaps and conflictLists. 
These hash lookups were a major sink of time because they happen so often!
Also, add option to disable scheduling.

llvm-svn: 4138
 2002-10-13 00:40:37 +00:00
Vikram S. Adve
211f972d28 Major bug fix: was not adding CD edges for RETURNs! 
llvm-svn: 4137
 2002-10-13 00:39:22 +00:00
Vikram S. Adve
be4905b56a Major bug fix: spill code for an instruction in a delay slot was 
merrily being inserted before/after the instruction!

llvm-svn: 4116
 2002-10-11 16:12:40 +00:00
Vikram S. Adve
f19f08c3ab Don't pad variables in stack slots for performance! 
llvm-svn: 4115
 2002-10-11 16:10:53 +00:00
Vikram S. Adve
01e64b5eef Bug fix in folding getElementPtr instructions: don't fold one into 
a predecessor if it has a non-zero first index and the predecessor
ends with a struct index.

llvm-svn: 3982
 2002-09-29 22:55:05 +00:00
Vikram S. Adve
69d19cf9a9 Convert DIRS to PARALLEL_DIRS. They can be built independently. 
llvm-svn: 3972
 2002-09-29 11:52:14 +00:00
Vikram S. Adve
59778ef96d Added a couple of helper methods for live range construction. 
llvm-svn: 3970
 2002-09-28 17:05:43 +00:00
Vikram S. Adve
2710051771 Live ranges for Return value and return address of a Call are now 
created here, simply by handling all implicit operands (which should
have been done anyway).

llvm-svn: 3969
 2002-09-28 17:05:22 +00:00
Vikram S. Adve
7e39b876eb Fixed method getReturnValue(): it should return NULL if the 
callee does not return a value.

llvm-svn: 3968
 2002-09-28 17:03:54 +00:00
Vikram S. Adve
7c0175962a Fixed incorrect assertion: spill code for function ptr should be 
handled like normal operands, not like other call arguments.

llvm-svn: 3967
 2002-09-28 17:02:40 +00:00
Vikram S. Adve
c795b90eac Sign-extend integer constants from original type size to 64 bits! 
llvm-svn: 3958
 2002-09-27 14:26:20 +00:00
Vikram S. Adve
07a33b5553 Add method IGNode::getCombinedDegree to count the sum of the degrees 
of two nodes, excluding duplicates.

llvm-svn: 3848
 2002-09-20 00:55:04 +00:00
Vikram S. Adve
1d139cf8de Add PostOpts/ and rename PreSelection/ to PreOpts/. 
llvm-svn: 3847
 2002-09-20 00:53:53 +00:00
Vikram S. Adve
47303cde2d Add method MachineInstr::replace to rewrite a machine instruction in place. 
llvm-svn: 3843
 2002-09-20 00:47:49 +00:00
Vikram S. Adve
ccb33335a3 Allow copy coalescing in more cases: if sum of node degrees is more than 
than #available regs, compute the sum excluding duplicates and if that
is less than #regs, go ahead and coalesce.
Add method IGNode::getCombinedDegree to count excluding duplicates.

llvm-svn: 3842
 2002-09-20 00:45:47 +00:00
Vikram S. Adve
82b15d7253 Peephole optimization pass on final machine code. 
llvm-svn: 3840
 2002-09-20 00:42:11 +00:00
Vikram S. Adve
8dc14ec198 Files moved to CodeGen/PreOpts. 
llvm-svn: 3839
 2002-09-20 00:30:46 +00:00
Vikram S. Adve
6f0ad9998b Moving these files from Code/PreSelection to here. 
Original logs for PreSelection.cpp:

  revision 1.2
  date: 2002/09/17 23:50:32;  author: lattner;  state: Exp;  lines: +1 -3
  Don't put default parameter values into .cpp files, it breaks 3.x compilers

  revision 1.1
  date: 2002/09/16 15:31:13;  author: vadve;  state: Exp;
  New preselection pass that specializes LLVM code for a target machine,
  while remaining in legal portable LLVM form and preserving type
  information and type safety.

llvm-svn: 3838
 2002-09-20 00:29:28 +00:00
Chris Lattner
86e6e0f6e3 Don't put default parameter values into .cpp files, it breaks 3.x compilers 
llvm-svn: 3799
 2002-09-17 23:50:32 +00:00
Chris Lattner
7c1b7e5889 Add support for GCC 2.96 
llvm-svn: 3777
 2002-09-17 17:23:09 +00:00
Vikram S. Adve
04cace44d8 Add subdirectory PreSelection. 
llvm-svn: 3739
 2002-09-16 15:32:07 +00:00
Vikram S. Adve
a5b251ed67 New preselection pass that specializes LLVM code for a target machine, 
while remaining in legal portable LLVM form and preserving type
information and type safety.

llvm-svn: 3738
 2002-09-16 15:31:13 +00:00
Vikram S. Adve
3d9c3e8751 Dump routine now writes out allocated register numbers if available. 
llvm-svn: 3737
 2002-09-16 15:18:53 +00:00
Vikram S. Adve
df1e95af82 Improve and fix error in allocating stack slots: adjust alignment after adding 
base address of the relevant region (instead of assuming that each region
is maximally aligned).

llvm-svn: 3736
 2002-09-16 15:18:16 +00:00
Vikram S. Adve
533c888d4a Add a version of ChooseRegOrImmed to handle numerical constants 
introduced by InstrSelection.

llvm-svn: 3735
 2002-09-16 15:15:57 +00:00
Vikram S. Adve
74823d9145 Add an assertion. 
llvm-svn: 3734
 2002-09-16 15:13:59 +00:00
Vikram S. Adve
69cf056052 Fix typos in previous checkin. 
llvm-svn: 3726
 2002-09-15 15:33:48 +00:00
Chris Lattner
db2c0b75ab RegAllocCommon no longer includes CommandLine.h so we have to include it 
here.

llvm-svn: 3725
 2002-09-15 07:07:55 +00:00
Vikram S. Adve
2ebafaf8ff Break RA_DEBUG option into several levels to get better control over 
debug output.

llvm-svn: 3724
 2002-09-14 23:05:33 +00:00
Vikram S. Adve
8d2a9260ef Remove unnecessary include. 
llvm-svn: 3723
 2002-09-14 23:04:52 +00:00
Vikram S. Adve
263de0387d Break RA_DEBUG option into several levels to get better output. 
llvm-svn: 3722
 2002-09-14 22:18:37 +00:00
Vikram S. Adve
7cad54b354 Moving to lib/CodeGen/RegAlloc. 
llvm-svn: 3718
 2002-09-14 11:57:17 +00:00
Chris Lattner
23bd92aeeb Fix a bug I introduced into the code generator. :( 
llvm-svn: 3694
 2002-09-12 20:27:10 +00:00
Chris Lattner
18e3c4ff50 - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.

llvm-svn: 3681
 2002-09-11 01:21:29 +00:00
Chris Lattner
22bcab6bd5 Make sure the leakdetector is told about temporary Phi nodes also, so it doesn't 
erroneously report them as leaks

llvm-svn: 3624
 2002-09-08 21:19:29 +00:00
Chris Lattner
1c2e1ebb5c Inform the memory leak detector that TmpInstruction objects should not be 
subject to memory leak checking.

llvm-svn: 3623
 2002-09-08 21:08:43 +00:00
Chris Lattner
3ce5b343c5 - Renamed Type::isIntegral() to Type::isInteger() 
- Added new method Type::isIntegral() that is the same as isInteger, but
    also accepts bool.

llvm-svn: 3574
 2002-09-03 01:08:28 +00:00
Anand Shukla
9a0d43e242 moved this file from lib/Reoptimizer/Mapping 
llvm-svn: 3519
 2002-08-27 22:47:33 +00:00
Anand Shukla
687dea3dcf Makefile for new sub directory 
llvm-svn: 3518
 2002-08-27 22:46:38 +00:00
Anand Shukla
5bb28c7358 Added Mapping subdir 
llvm-svn: 3517
 2002-08-27 22:45:49 +00:00
Vikram S. Adve
b8a0f00662 Use newly-added type inspection support in InstTreeNode subclasses. 
llvm-svn: 3501
 2002-08-24 21:02:09 +00:00
Vikram S. Adve
3190395e10 Moved code here to extract memory instruction indices and to check 
whether FoldGetElemNodes should be called.  This is machine-independent
but was in the Sparc directory.  This is in a new function: GetMemInstArgs.

llvm-svn: 3500
 2002-08-24 21:00:08 +00:00
Anand Shukla
656de9732b Added #include <alloca.h> 
llvm-svn: 3491
 2002-08-23 10:54:26 +00:00
Chris Lattner
20b85d96e4 Eliminated the MemAccessInst class, folding contents into GEP class. 
llvm-svn: 3487
 2002-08-22 23:37:20 +00:00
Vikram S. Adve
0672c43566 dumpNode() does not need to print MachineInstrs. 
llvm-svn: 3444
 2002-08-22 02:59:46 +00:00
Vikram S. Adve
21b0deb4ab Unary Not (boolean and bitwise) is no longer a separate LLVM instruction 
but is instead implemented with XOR.  Note that the InstrForest opLabels
for Not and BNot remain the same, i.e., the XOR is recognized and
represented as a (boolean or bitwise) Not when building the instruction
trees.  But these tree nodes are now binary, not unary.

llvm-svn: 3343
 2002-08-15 14:19:22 +00:00
Vikram S. Adve
87928f2098 Add method MachineInstr::substituteValue() which substitutes 
one Value with another one in all operands and implicit references
of the machine instruction.

llvm-svn: 3306
 2002-08-14 16:52:58 +00:00