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1147 Commits

Author SHA1 Message Date
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
Brian Gaeke
ed1c780821 Add statistic for # of emitWord() calls. 
llvm-svn: 8772
 2003-09-30 17:49:41 +00:00
Misha Brukman
6d1b1553c1 Fixed spelling. 
llvm-svn: 8687
 2003-09-23 17:28:11 +00:00
Misha Brukman
c52311be4f Fix spelling. 
llvm-svn: 8686
 2003-09-23 17:27:28 +00:00
Vikram S. Adve
be3b73177f Fix assertion so it doesn't not trip incorrectly. 
llvm-svn: 8650
 2003-09-21 07:55:27 +00:00
Brian Gaeke
180144d19e Fix a typo in Sparc.cpp. 
Update names of some pass creator fns in addPassesToEmitAssembly().
FunctionInfo is gone.

llvm-svn: 8599
 2003-09-18 17:37:46 +00:00
Brian Gaeke
425a189248 Rename the pass creator fn to mimic the other creator fn names. 
llvm-svn: 8598
 2003-09-18 17:37:35 +00:00
Brian Gaeke
b22c819f96 Fix (and properly doxygenify) some comments. Incorporate 
functionality of FunctionInfo pass as doFinalization method.
Rename pass to match names of other passes like it.
Rename the pass creator fn to mimic the other creator fn names.
Include StringExtras for utostr().
Make symbol prologue/epilogue stuff redundant with
 EmitBytecodeToAssembly, in preparation for refactoring.

llvm-svn: 8597
 2003-09-18 17:37:25 +00:00
Brian Gaeke
bbbb03f96a Make the symbol prologue/epilogue stuff redundant with MappingInfo, in 
preparation for refactoring.
Rename the pass creator fn to mimic the other creator fn names.

llvm-svn: 8596
 2003-09-18 17:37:14 +00:00
Vikram S. Adve
e92c22c656 Fix longjmp case so that, along with the call to abort(), we also 
generate the appropriate CallArgsDescriptor and tmp. virtual regs.

llvm-svn: 8554
 2003-09-16 05:56:22 +00:00
Chris Lattner
5468c196f3 Be a little more specific about what is begin generated. Only print 
command line if VERBOSE=1

llvm-svn: 8453
 2003-09-10 19:52:54 +00:00
Chris Lattner
f9db4af8bf Only emit inter-field-padding if the amount of padding is != 0 
llvm-svn: 8452
 2003-09-10 19:52:24 +00:00
John Criswell
29a0f79c05 Don't explicitly use $SourceDir to find the tblgen files. This causes make 
some confusion when trying to generate files (it probably couldn't tell that
./file and $(SourceDir)/file may be the same file).
Now, just let VPATH find everything, and list the primary tblgen file first in
the list of dependencies so that we can just use $< to reference it in the make
rule.

This should hopefully fix the nightly tester.

llvm-svn: 8433
 2003-09-10 14:10:44 +00:00
John Criswell
e783801878 Updated to find source files using VPATH. This makes writing build rules 
much cleaner and easier.
Labeled .td as a suffix for tblgen files in Makefile.rules.
Modified build rules so that source files generated during the build are placed
in the build directory and not the source directory (and not in a Debug
directory).  This makes the system cleaner and allows us to have a read-only
source tree.

llvm-svn: 8424
 2003-09-09 20:57:03 +00:00
Chris Lattner
e35b8fabc4 * Simplify printConstantValueOnly by moving the tail padding stuff directly 
into the struct case.
* Extend printConstantValueOnly to print .zero's if the initializer is zero
* Delete dead isConstantFunctionPointerRef function
* Emit the appropriate assembly for the various linkage types!

llvm-svn: 8417
 2003-09-09 16:23:36 +00:00
Chris Lattner
e8ae7bf114 Eliminate support for the llvm.unwind intrinisic, using the Unwind instruction instead 
llvm-svn: 8411
 2003-09-08 19:44:26 +00:00
Chris Lattner
4ad8720f91 Add support for the unwind instruction 
llvm-svn: 8408
 2003-09-08 18:54:55 +00:00
John Criswell
bd1d21a0b4 Checkin of autoconf-style object root. 
Adjusted Makefile to work with new autoconf-style object root.
Specifically, use the new -I option of tblgen to find include files.

llvm-svn: 8379
 2003-09-06 14:50:22 +00:00
Misha Brukman
a17b761043 Added some optimizations: 
* Generate a single BA instead of 6-instruction JUMP if possible
  (this occurs both in the creation and overwriting of the stub code)
* If possible, rewrite the ORIGINAL call to call the generated function
  directly, thus bypassing the stub entirely

Also added some statistics on how often calls are overwritten and how often the
CompilationCallback is invoked.

llvm-svn: 8376
 2003-09-05 22:59:31 +00:00
Chris Lattner
3d53c382ba OptInfo is no longer required 
llvm-svn: 8312
 2003-09-01 20:41:07 +00:00
Chris Lattner
6d92264f5a No longer provide an optinfo, noone uses it 
llvm-svn: 8311
 2003-09-01 20:40:59 +00:00
Chris Lattner
2eb5de925f Inline simple comparison which is sparc specific anyway 
llvm-svn: 8309
 2003-09-01 20:38:03 +00:00
Chris Lattner
3d6b7d1b44 Move private interfaces into private .h file 
llvm-svn: 8306
 2003-09-01 20:33:07 +00:00
Chris Lattner
cd2980ec8c Simplify code a bit 
llvm-svn: 8301
 2003-09-01 20:24:06 +00:00
Chris Lattner
049f0b8b37 LiveRange.h is now in lib/CodeGen/RegAlloc 
llvm-svn: 8299
 2003-09-01 20:17:13 +00:00
Chris Lattner
74e93a318b LiveRangeInfo got moved into the lib/CodeGen/RegAlloc directory 
llvm-svn: 8297
 2003-09-01 20:12:17 +00:00
Chris Lattner
8ebc13b6ca IGNode got moved to lib/CodeGen/RegAlloc 
llvm-svn: 8294
 2003-09-01 20:00:08 +00:00
Chris Lattner
ee413804c7 This file just needs LiveRange.h not IGNode.h 
llvm-svn: 8293
 2003-09-01 19:58:02 +00:00
Chris Lattner
a43cd2a9c9 No longer include IGNode.h in the Sparc global header 
llvm-svn: 8292
 2003-09-01 19:56:48 +00:00
Misha Brukman
6202e8a9ea * Use alloca() to force GCC not to eliminate frame pointer 
* Break apart saving and restoring registers into separate functions
* Instead of saving single and double FP registers, just save the double
  registers -- aliasing helps preserve the single FP registers as well.
* Request just as much memory for a stub as we actually use

llvm-svn: 8200
 2003-08-29 04:22:54 +00:00
Chris Lattner
062cc9d341 Add support for the llvm.unwind intrinsic, which we codegen to just do an abort 
until we implement unwinding.
Add support for the invoke instruction, which codegens just like a call with
a branch after it.

The end effect of this change is that programs using the invoke instruction,
but never unwinding, will work fine.  Programs that unwind will abort until
we get unwind support.

llvm-svn: 8187
 2003-08-28 21:23:43 +00:00
Chris Lattner
f31d84d7c5 Targets should configure themselves based on a Module, not some wierd flags 
llvm-svn: 8132
 2003-08-24 19:49:48 +00:00
Chris Lattner
d627d84e23 Implement: Jello/test-constantexpr.ll 
llvm-svn: 8127
 2003-08-24 19:19:47 +00:00
Chris Lattner
d22a618a27 Add support for 'any' pointer size and endianness 
llvm-svn: 8120
 2003-08-24 13:49:22 +00:00
Chris Lattner
ce3c869e38 Change all #include'd files to be :: rules instead of : rules 
llvm-svn: 8019
 2003-08-21 20:37:17 +00:00
Chris Lattner
f54b131a49 Add support for the sig(set|long)jmp intrinsics 
llvm-svn: 7951
 2003-08-18 16:06:09 +00:00
Misha Brukman
56f7db4178 Spell `necessary' correctly. 
llvm-svn: 7944
 2003-08-18 14:43:39 +00:00
Chris Lattner
c5e9b1f3cd Fix ABI issue: Longs really do need to be only 4 byte aligned on X86. 
This bug caused miscompilation of programs using 'struct stat', but only if
compiled with support for 64-bit filesystems.  This could in theory effect
other things, but only if the LLVM code shared data structures with native code.

llvm-svn: 7928
 2003-08-17 23:20:40 +00:00
Brian Gaeke
705b78146e Rename -emitmaps to -enable-maps 
llvm-svn: 7913
 2003-08-16 00:23:16 +00:00
Misha Brukman
cddc1c4f9c Now that the JIT memory manager allocates as many bytes as necessary rather than 
rounding up to a page, we need to request (num instrs * 4) bytes. However, I
think that 64 bytes is overkill for the stub function.

llvm-svn: 7888
 2003-08-15 18:03:06 +00:00
Misha Brukman
16cd96bf4a Fix register and parameter numbers in saving double FP registers. 
llvm-svn: 7884
 2003-08-15 16:15:28 +00:00
Chris Lattner
fb986e7b44 Adjust to new API, add expandCall stub 
llvm-svn: 7873
 2003-08-15 04:51:59 +00:00
Chris Lattner
8d79ae7383 Add support for unconditional branches and for emitting JE instructions 
llvm-svn: 7872
 2003-08-15 04:50:49 +00:00
Chris Lattner
250f26f066 Add a bunch of new node types, including a new Void dummy register class 
llvm-svn: 7870
 2003-08-15 04:35:14 +00:00
Misha Brukman
a45f4930ed * Must save FP registers when calling CompilationCallback(), because FP 
registers are global, are NOT windowed, and hence can be clobbered!
* Removed unused register shorthand notations
* Fixed and cleaned up comments in inline assembly

llvm-svn: 7853
 2003-08-15 00:26:50 +00:00
Misha Brukman
fd3dc24fc4 Since we now have TableGen editing modes for VIM and (X)Emacs, we no longer need 
to mark TableGen description files with "C++ mode".

llvm-svn: 7841
 2003-08-14 15:16:28 +00:00
Chris Lattner
c8890366ee Restore 'nice name' to pass 
llvm-svn: 7840
 2003-08-14 14:43:24 +00:00
Brian Gaeke
4651096037 Factory methods for function passes now return type FunctionPass *. 
llvm-svn: 7839
 2003-08-14 06:09:32 +00:00
Brian Gaeke
bff292410d Unbreak SPARC backend: addPassesToJITCompile and 
addPassesToEmitMachineCode now both take a FunctionPassManager.

llvm-svn: 7837
 2003-08-14 06:04:59 +00:00
Brian Gaeke
af3bc2b895 Factory methods for function passes now return type FunctionPass *. 
Get rid of RegisterLLC, which can't handle FunctionPasses anyway.

llvm-svn: 7836
 2003-08-14 06:04:49 +00:00
Brian Gaeke
dbdd3c6717 Unbreak SPARC backend: addPassesToJITCompile and 
addPassesToEmitMachineCode now both take a FunctionPassManager.
Factory methods for function passes now return type FunctionPass *.

llvm-svn: 7835
 2003-08-14 06:04:29 +00:00
Brian Gaeke
4fff8d3bd8 X86 static backend: smacked 
Function at a time: smacked

Who you gonna call!!!  :-)

llvm-svn: 7826
 2003-08-13 19:02:09 +00:00