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1198 Commits

Author SHA1 Message Date
Chris Lattner
f0f44f414b Finegrainify namespacification 
llvm-svn: 10270
 2003-11-30 06:13:25 +00:00
Brian Gaeke
29723ca977 Support constant casting constant pointers to ints/uints, and/or 
the other way around, instead of failing a large, tumor-like assertion.

llvm-svn: 10171
 2003-11-22 07:18:25 +00:00
Brian Gaeke
296546cf0c Constant shift expressions, meet InstSelectSimple. Yow!! 
llvm-svn: 10170
 2003-11-22 06:49:41 +00:00
Brian Gaeke
8c4c9f6f1e Stub for constant shift expr support. 
llvm-svn: 10168
 2003-11-22 05:18:35 +00:00
Misha Brukman
1d9ac83d82 * Add code to flush the ICache, which any self-respecting SMC must do 
* Restore registers *after* everything else to avoid any possible side effects

This fixes McCat-imp.

llvm-svn: 10147
 2003-11-21 23:48:54 +00:00
Chris Lattner
6677af8dee Fix PR123 
llvm-svn: 10069
 2003-11-18 17:47:05 +00:00
Misha Brukman
1c95e95551 Include the file before we close the llvm namespace. 
llvm-svn: 9954
 2003-11-13 00:23:05 +00:00
Misha Brukman
58f9d30da4 Substantially re-organized this file: 
* There is now only one pass to print out assembly instead of two
* It is a FunctionPass
* The Module-level printing of globals is now in doFinalization() method of the
  FunctionPass
* The code has been reformatted to follow LLVM coding standards
* Some comments, not all, were doxygenified
* Last but not least, the function to create an instance of this pass is also no
  longer a method in the UltraSparc class.

llvm-svn: 9953
 2003-11-13 00:22:19 +00:00
Misha Brukman
5c858a33cb The function to create an instance of this pass is no longer a method of 
the UltraSparc class.

llvm-svn: 9952
 2003-11-13 00:19:02 +00:00
Misha Brukman
e3afd442f1 The functions to create new instances of passes are no longer methods in the 
UltraSparc class. Comments are also doxygen-compatible now.

llvm-svn: 9951
 2003-11-13 00:17:20 +00:00
Misha Brukman
aa553825b1 * Put command-line switches in their own namespace 
* Pass creation functions are no longer in the UltraSparc class

llvm-svn: 9950
 2003-11-13 00:16:28 +00:00
Misha Brukman
310200f573 Force a dependency on the .inc file, which must be generated! 
llvm-svn: 9949
 2003-11-13 00:05:09 +00:00
Brian Gaeke
d25f86d683 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
Brian Gaeke
d542ca6af1 Fix PR103 
llvm-svn: 9830
 2003-11-09 07:08:34 +00:00
Brian Gaeke
5159888ea4 Fix two typos I found in comments. 
llvm-svn: 9806
 2003-11-08 18:12:24 +00:00
Misha Brukman
feb806084d For some reason, LICM and GCSE like to crash the FunctionPassManager when they 
are being added as FunctionPasses... Sigh.

llvm-svn: 9798
 2003-11-08 00:01:39 +00:00
Misha Brukman
9ddec59660 Implement branching to a PC-relative constant (not a BasicBlock). 
llvm-svn: 9793
 2003-11-07 21:07:30 +00:00
Misha Brukman
fbd3f16961 PreSelection is not optional, it performs a necessary and vital transformation 
for the Sparc backend: breaking up constant expressions. Thus, we cannot have it
guarded by a conditional, it should never be disabled.

Also, it's now available for the JIT since it is a FunctionPass.

llvm-svn: 9791
 2003-11-07 20:33:25 +00:00
Misha Brukman
d04d2ef54d Switch to emitting MachineConstantPool the way it was meant to be done. 
llvm-svn: 9777
 2003-11-07 18:06:26 +00:00
Misha Brukman
8fe318a705 Switch to using the standard representation of the constant pool -- namely, the 
MachineConstantPool. This involved refactoring the two classes involved in
printing out Sparc assembly. In fact, they should share all this code anyway.

llvm-svn: 9776
 2003-11-07 17:45:28 +00:00
Misha Brukman
3f43ed6586 We accept TargetMachine as a const reference. 
llvm-svn: 9775
 2003-11-07 17:44:18 +00:00
Misha Brukman
c866cfb251 PreSelection and PeepholeOpts are now FunctionPasses. 
llvm-svn: 9774
 2003-11-07 17:43:43 +00:00
Misha Brukman
1c726348d1 * Stop making a global for each constant that cannot live in an instruction; 
it will be converted to a MachineConstantPool index during instruction
  selection
* This is now eligible to become a FunctionPass since it does not have any side
  effects outside of the function it is processing.

llvm-svn: 9773
 2003-11-07 17:31:22 +00:00
Misha Brukman
575a02e8db * Use the MachineConstantPool for storing constants instead of a hash_set; 
* Do not create new globals for constants!

Also, order #includes as per coding style guide

llvm-svn: 9772
 2003-11-07 17:29:48 +00:00
Misha Brukman
ccdf8e85e0 Use basename $< to get just the filename, not full path, for ease of reading. 
llvm-svn: 9770
 2003-11-07 17:26:27 +00:00
Chris Lattner
8f8109ebdb Hopefully this will fix PR98 
llvm-svn: 9762
 2003-11-07 00:38:09 +00:00
Chris Lattner
ca7a346fce Hopefully fix the objdir != srcdir issue 
llvm-svn: 9761
 2003-11-07 00:34:33 +00:00
Chris Lattner
e060df5b2c Fix warnings building on sparc 
llvm-svn: 9758
 2003-11-06 21:30:05 +00:00
Misha Brukman
de3f241f5f * Make the comment header 80 columns long 
* Alphabetize #includes

llvm-svn: 9751
 2003-11-06 18:06:13 +00:00
Misha Brukman
c7c4e197fc We know exactly what the value of $< is, so instead of using basename $< to 
get just the filename and not the full path, just use the filename directly.

llvm-svn: 9730
 2003-11-05 06:43:36 +00:00
Alkis Evlogimenos
c6a7c83333 Change all machine basic block modifier functions in MRegisterInfo to 
return the number of instructions added to/removed from the basic block
passed as their first argument.

Note: This is only needed because we use a std::vector instead of an
ilist to keep MachineBasicBlock instructions. Inserting an instruction
to a MachineBasicBlock invalidates all iterators to the basic
block. The return value can be used to update an index to the machine
basic block instruction vector and circumvent the iterator elimination
problem but this is really not needed if we move to a better
representation.

llvm-svn: 9704
 2003-11-04 22:57:09 +00:00
Chris Lattner
c4cfc20335 Fix problems in previous changes. This fixes several regressions last night. 
llvm-svn: 9694
 2003-11-04 16:04:32 +00:00
Chris Lattner
414e572f11 Significantly simplify constant emission by unifying the stuff which used to build up 
strings with the stuff that used to print to an ostream directly.  We now NEVER build
up big strings, only to print them once they are formed.

llvm-svn: 9686
 2003-11-03 20:19:49 +00:00
Chris Lattner
f100e90240 Incorporate printSingleConstantValue into its single caller 
llvm-svn: 9684
 2003-11-03 19:44:05 +00:00
Chris Lattner
2943114bfd * Reformat some code 
* Emit bools as 1/0 instead of true/false, fixing compilation of eon and
  PR 83 & Jello/2003-11-03-GlobalBool.llx

llvm-svn: 9683
 2003-11-03 19:33:45 +00:00
Brian Gaeke
0d26a4c53d Tweak sed commands so that they filter out more # stuff and also 
work on Mac OS X. Also turn ${...} into $(...); we do not speak BSD
Make.

llvm-svn: 9589
 2003-10-29 20:07:35 +00:00
Chris Lattner
0e32494c79 Delete unused EmitByteSwap method 
Implement mul/div/rem constant expressions

llvm-svn: 9424
 2003-10-23 17:21:43 +00:00
Misha Brukman
6a1c1640f5 Make code layout more consistent. 
llvm-svn: 9418
 2003-10-23 16:48:30 +00:00
Misha Brukman
0f649c0045 * Order includes according to style guide 
* Convert tabs to spaces
* Make code fit within 80 columns

llvm-svn: 9416
 2003-10-23 16:22:08 +00:00
Misha Brukman
55695cc963 Add comments to describe what these functions actually do. 
llvm-svn: 9370
 2003-10-22 05:50:40 +00:00
Misha Brukman
f79e50487f * Use <cmath> instead of <math.h> 
* Order #includes according to LLVM coding standards

llvm-svn: 9369
 2003-10-22 05:09:56 +00:00
Misha Brukman
7456b8a58d Removed completely duplicated function comment (an identical one appears later). 
llvm-svn: 9368
 2003-10-22 04:55:09 +00:00
Misha Brukman
ed0f9660bc No, really, order the #includes correctly. 
llvm-svn: 9367
 2003-10-22 04:51:36 +00:00
Misha Brukman
c40b8306f6 * Fix order of #includes to follow style guide 
* It's no longer a BasicBlock pass: update comment on run() method
* Fix placement of braces to be consistent
* Delete extraneous whitespace

llvm-svn: 9361
 2003-10-22 03:27:45 +00:00
Misha Brukman
f8d45938f8 Converted tabs to spaces. 
llvm-svn: 9360
 2003-10-22 03:10:26 +00:00
Chris Lattner
7a75f6b7d4 Hrm, unbreak stuph :( 
llvm-svn: 9334
 2003-10-21 17:22:23 +00:00
Chris Lattner
19f471f002 Fix preselection/lowerswitches bug 
llvm-svn: 9333
 2003-10-21 16:29:23 +00:00
Chris Lattner
2c063c848d Pull the PHI special case into it's own visit* method 
llvm-svn: 9332
 2003-10-21 16:09:23 +00:00
Chris Lattner
4b8ce1c80d The lastOp operand is never used 
llvm-svn: 9331
 2003-10-21 16:06:07 +00:00
John Criswell
4746befea3 Added LLVM copyright notice. 
llvm-svn: 9324
 2003-10-21 15:29:18 +00:00
John Criswell
de34542f41 Added LLVM copyright header. 
llvm-svn: 9321
 2003-10-21 15:17:13 +00:00
Chris Lattner
bec3b4ede1 Preselection is _not_ a basicblock pass, because it adds global variables to 
the module.  This change converts it from being a basic block pass to being
a simple pass.  This allows elimination of the annotation and simplification
of the logic for moving constants into global variables.

llvm-svn: 9320
 2003-10-21 14:49:19 +00:00
Vikram S. Adve
b289dff9a8 When opcodes like ADD were split into reg. and immed. versions (ADDi and ADDr), 
this code wasn't fixed correctly so it missed copy operations that used ADDi.

llvm-svn: 9318
 2003-10-21 12:29:45 +00:00
Vikram S. Adve
abf40e897c Why does g++ not even generate a warning when you miss a break statement? 
llvm-svn: 9317
 2003-10-21 12:28:27 +00:00
Vikram S. Adve
062fda7446 Implement the new varargs instructions and intrinsics. 
llvm-svn: 9316
 2003-10-21 11:25:09 +00:00
John Criswell
71d2894956 Added LLVM copyright notice to Makefiles. 
llvm-svn: 9312
 2003-10-20 22:26:57 +00:00
Brian Gaeke
f9b97fda86 Goodbye, AddRegNumToValues 
llvm-svn: 9309
 2003-10-20 20:44:03 +00:00
John Criswell
b402729b30 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Brian Gaeke
9501118e3b Minor leftover fixups from replaceMachineCodeForFunction () change. 
llvm-svn: 9295
 2003-10-20 17:59:09 +00:00
Brian Gaeke
b4ceb43a43 Make replaceMachineCodeForFunction() return void. 
llvm-svn: 9289
 2003-10-20 15:17:12 +00:00
Brian Gaeke
afbe8787cc Make replaceMachineCodeForFunction return void. 
llvm-svn: 9288
 2003-10-20 15:15:17 +00:00
Chris Lattner
332429f023 Apparently the dependencies are wrong for this file, so it didn't rebuild it 
when changing Instruction.def.  :(

llvm-svn: 9286
 2003-10-20 14:12:52 +00:00
Chris Lattner
c4f8226aaf Emit x86 instructions for: A = B op C, where A and B are 16-bit registers, 
C is a constant which can be sign-extended from 8 bits without value loss,
and op is one of: add, sub, imul, and, or, xor.

This allows the JIT to emit the one byte version of the constant instead of
the two or 4 byte version.  Because these instructions are very common, this
can save a LOT of code space.  For example, I sampled two benchmarks, 176.gcc
and 254.gap.

BM        Old     New    Reduction
176.gcc 2673621 2548962  4.89%
254.gap  498261  475104  4.87%

Note that while the percentage is not spectacular, this did eliminate
124.6 _KILOBYTES_ of codespace from gcc.  Not bad.

Note that this doesn't effect the llc version at all, because the assembler
already does this optimization.

llvm-svn: 9284
 2003-10-20 05:53:31 +00:00
Chris Lattner
c83d8249cb Further cleanups and simplifications 
llvm-svn: 9282
 2003-10-20 04:48:06 +00:00
Chris Lattner
fce0650cee Eliminate code for pointer size and endianness emulation. 
llvm-svn: 9281
 2003-10-20 04:11:23 +00:00
Misha Brukman
be506fc1c5 The Grammar Police was here. 
llvm-svn: 9280
 2003-10-20 04:03:10 +00:00
Chris Lattner
5a577c0b28 * Rename X86::IMULr16 -> X86::IMULrr16 
* Implement R1 = R2 * C where R1 and R2 are 32 or 16 bits. This avoids an
  extra copy into a register, reducing register pressure.

llvm-svn: 9278
 2003-10-20 03:42:58 +00:00
Chris Lattner
87843f87b8 Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions. 
llvm-svn: 9269
 2003-10-19 21:34:28 +00:00
Chris Lattner
3d519c7bab * Multiplications by 2^X are turned into shifts. This factors code out of the 
getelementptr code path for use by other code paths (like malloc and alloca).
* Optimize comparisons with zero
* Generate neg, not, inc, and dec instructions, when possible.

This gives some code size wins, which might translate into performance.  We'll
see tommorow in the nightly tester.

llvm-svn: 9267
 2003-10-19 21:09:10 +00:00
Chris Lattner
57825f087d Add some new instructions. Wheee 
llvm-svn: 9266
 2003-10-19 19:25:35 +00:00
Chris Lattner
9107ee3a11 .string adds an implicit zero at the end. This is not what we wanted. 
This fixes PR#44.

llvm-svn: 9252
 2003-10-19 02:51:01 +00:00
Chris Lattner
de87c8a892 Fix bug: Jello/2003-10-18-PHINode-ConstantExpr-CondCode-Failure.llx 
This also fixes miscompilation of 176.gcc.

llvm-svn: 9249
 2003-10-19 00:26:11 +00:00
Chris Lattner
0a276257ae Add support for the new varargs intrinsics 
llvm-svn: 9224
 2003-10-18 05:56:40 +00:00
Chris Lattner
080765e65d Update the sparc backend to at least compile correctly with the new varargs stuff even if it's not all implemented yet. 
llvm-svn: 9223
 2003-10-18 05:55:58 +00:00
Brian Gaeke
821c0e653c You can't just blat the address into memory, you have to blat its 
displacement.

llvm-svn: 9210
 2003-10-17 21:47:25 +00:00
Brian Gaeke
21797d71d9 Implement replaceMachineCodeForFunction() for x86. 
llvm-svn: 9204
 2003-10-17 18:27:46 +00:00
Brian Gaeke
e966765990 Refactor jump insertion code from CompilationCallback() into insertJumpAtAddr(). 
Make insertFarJumpAtAddr() return void, because nothing uses its return value.
Remove some commented-out code.
Implement replaceMachineCodeForFunction() for SPARC.

llvm-svn: 9203
 2003-10-17 18:27:37 +00:00
Brian Gaeke
4380148f33 Add prototype for replaceMachineCodeForFunction(). 
llvm-svn: 9202
 2003-10-17 18:27:25 +00:00
Brian Gaeke
7157eed00f Remove extra blank line. 
llvm-svn: 9196
 2003-10-17 18:09:10 +00:00
Alkis Evlogimenos
5a1f705c88 Eliminate some extraneous code in SlotCalculator::insertVal(). 
Rename SlotCalculator::getValSlot() to SlotCalculator::getSlot(),
       SlotCalculator::insertValue() to SlotCalculator::getOrCreateSlot(),
       SlotCalculator::insertVal() to SlotCalculator::insertValue(), and
       SlotCalculator::doInsertVal() to SlotCalculator::doInsertValue().

llvm-svn: 9190
 2003-10-17 02:02:40 +00:00
Brian Gaeke
edea9eca83 Fix typo in comment. 
llvm-svn: 9187
 2003-10-16 23:45:05 +00:00
Chris Lattner
f46c45682a Add support for 'weak' linkage. 
llvm-svn: 9171
 2003-10-16 18:29:00 +00:00
Chris Lattner
f2ed60c0b7 Decrease usage of use_size() 
llvm-svn: 9135
 2003-10-15 16:48:29 +00:00
Chris Lattner
c115e75755 Output a contorted sequence of instructions to make sure that we don't access 
off the bottom of the stack.  This fixes PR#41

llvm-svn: 9114
 2003-10-14 19:09:05 +00:00
Chris Lattner
907de53acb Disable the leaf function optimization, which is apparently not legal on 
X86/linux.  :(  The problem is that a signal delivered while the function
is executing could clobber the functions stack.  This is a partial fix
for PR41.

llvm-svn: 9113
 2003-10-14 18:52:41 +00:00
Brian Gaeke
add2fc5294 Remove WordsEmitted statistic; there's already a non-backend-specific 
jello statistic for this (just divide #-bytes-of-code-emitted by 4).

Rewrite head-of-file comment.

llvm-svn: 9098
 2003-10-13 19:51:20 +00:00
Chris Lattner
b6c8569f05 Regularize header file comments 
llvm-svn: 9071
 2003-10-13 03:32:08 +00:00
Brian Gaeke
acbc37a19e Don't include "Config/stdlib.h". 
llvm-svn: 9037
 2003-10-10 19:12:22 +00:00
Brian Gaeke
e5249bf429 Include <cstdio> instead of <stdio.h>. 
llvm-svn: 9032
 2003-10-10 18:46:52 +00:00
Misha Brukman
868eac95dd Fix spelling. 
llvm-svn: 9027
 2003-10-10 17:57:28 +00:00
Brian Gaeke
f9a4341b54 Add # of printed instructions statistic to both the SPARC and X86 LLC backends. 
llvm-svn: 8892
 2003-10-06 15:41:21 +00:00
Chris Lattner
e0ae24753d Add support for the Invoke instruction by using the LowerInvoke pass 
llvm-svn: 8872
 2003-10-05 19:16:09 +00:00
Chris Lattner
fc3f9605a7 Instead of hacking in custom support for Invoke/Unwind, use the LowerInvoke pass 
llvm-svn: 8871
 2003-10-05 19:15:47 +00:00
Alkis Evlogimenos
a37b58ce09 Moved enum and command-line option in separate file. Also added function that returns the user selected register allocator to the caller. 
llvm-svn: 8819
 2003-10-02 16:57:49 +00:00
Alkis Evlogimenos
42a09316bb Change llc command line for register allocators 
llvm-svn: 8815
 2003-10-02 06:13:19 +00:00
Alkis Evlogimenos
a50598c684 Revert previous change. For some reason this went into the main branch 
llvm-svn: 8805
 2003-10-01 19:40:13 +00:00
Alkis Evlogimenos
e3af981096 Added command line option for linear scan allocator 
llvm-svn: 8804
 2003-10-01 19:38:10 +00:00
Misha Brukman
15fd4fd90c The comment seems irrelevant as the pass has become a BasicBlock pass. 
llvm-svn: 8803
 2003-10-01 05:24:50 +00:00
Chris Lattner
bdca1b438d Make sure to get the definition of getRegisterAllocator 
llvm-svn: 8801
 2003-09-30 22:24:00 +00:00
Chris Lattner
5509b86d74 RegisterAllocation.h is going away 
llvm-svn: 8795
 2003-09-30 20:15:04 +00:00