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456 Commits

Author SHA1 Message Date
Nate Begeman
75f0d35dc6 Fix the last of the major PPC GEP folding deficiencies. This will allow 
the ISel to use indexed and non-zero immediate offsets for GEPs that have
more than one use.  This is common for instruction sequences such as a load
followed by a modify and store to the same address.

llvm-svn: 16493
 2004-09-23 05:31:33 +00:00
Nate Begeman
61d1797c03 add optimized code sequences for setcc x, 0 
llvm-svn: 16478
 2004-09-22 04:40:25 +00:00
Misha Brukman
bd9f406b0b s/ISel/PPC64ISel/ to have unique class names for debugging via gdb because the 
C++ front-end in gcc does not mangle classes in anonymous namespaces correctly.

llvm-svn: 16471
 2004-09-21 18:22:33 +00:00
Misha Brukman
6ad6dd2ab9 s/ISel/PPC32ISel/ to have unique class names for debugging via gdb because the 
C++ front-end in gcc does not mangle classes in anonymous namespaces correctly.

llvm-svn: 16470
 2004-09-21 18:22:19 +00:00
Chris Lattner
aee36bb527 Revamp the Register class, and allow the use of the RegisterGroup class to 
specify aliases directly in register definitions.

Patch contributed by Jason Eckhardt!

llvm-svn: 16330
 2004-09-14 04:17:02 +00:00
Nate Begeman
ce6d62eac7 Add 64 bit divide instructions, and use them 
llvm-svn: 16198
 2004-09-06 18:46:59 +00:00
Misha Brukman
8e6e187922 * Change PPC32AsmPrinter => PowerPCAsmPrinter since it is now shared between 
Darwin and AIX and is not 32- or 64-bit specific
* Bring back PowerPC.td as a result, to make it use the `PowerPC' class name
* Adjust Makefile accordingly

llvm-svn: 16174
 2004-09-05 02:42:44 +00:00
Misha Brukman
f55a7b3afa Renamed PPC32AsmPrinter.cpp => PowerPCAsmPrinter.cpp as the Darwin and AIX asm 
printers are now unified into one file.

llvm-svn: 16173
 2004-09-05 02:27:37 +00:00
Nate Begeman
56a134d07a Include MathExtras.h to fix build breakage, thanks to Vladimir 
llvm-svn: 16164
 2004-09-04 14:51:26 +00:00
Nate Begeman
e816600b3e All PPC instructions are now auto-printed 
32 and 64 bit AsmWriters unified
Darwin and AIX specific features of AsmWriter split out

llvm-svn: 16163
 2004-09-04 05:00:00 +00:00
Nate Begeman
3bad485eec Convert remaining X-Form and Pseudo instructions over to asm writer 
llvm-svn: 16142
 2004-09-02 08:13:00 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Nate Begeman
220175aa4d convert M and MD form instructions to generated asm writer 
llvm-svn: 16121
 2004-08-31 02:28:08 +00:00
Nate Begeman
e58512a61c Move yet more instructions over to being printed by the generated asm writer 
llvm-svn: 16112
 2004-08-30 02:28:06 +00:00
Nate Begeman
7792aa1f8b Convert A-Form instructions to auto-generated asm writer 
llvm-svn: 16107
 2004-08-29 22:45:13 +00:00
Nate Begeman
68e2dd66af Improvements to int->float cast code for PPC-64 
llvm-svn: 16105
 2004-08-29 22:02:43 +00:00
Nate Begeman
923af3763d Implement the following missing functionality in the PPC backend: 
cast fp->bool
cast ulong->fp
algebraic right shift long by non-constant value
These changes tested across most of the test suite.  Fixes Regression/casts

llvm-svn: 16081
 2004-08-29 08:19:32 +00:00
Nate Begeman
c0e42be976 Register sizes are in bits, not bytes 
llvm-svn: 16070
 2004-08-27 04:28:10 +00:00
Nate Begeman
0069f07741 Kill a majority of unnecessary sign extensions for byte loads 
llvm-svn: 15991
 2004-08-22 08:10:15 +00:00
Nate Begeman
72ec463dc7 Don't hard code the offset of the saved R31 in functions with frame pointers 
llvm-svn: 15990
 2004-08-22 08:09:17 +00:00
Nate Begeman
e6aace2ecb Back out branchless SetCC code. While it helped a lot in some cases, it 
hurt a lot in others.  Instead, improve branching version of SetCC and
Select instructions.  The old code will be in CVS should we ever need to
dig it up again.

llvm-svn: 15979
 2004-08-21 20:42:14 +00:00
Chris Lattner
15593f74c1 Switch from bytes to bits for alignment. 
Also, change GPRC for PPC32 to align on 32-bit boundary instead of 64-bit

llvm-svn: 15975
 2004-08-21 20:14:40 +00:00
Chris Lattner
db3e26f50a Reduce uses of getRegClass 
llvm-svn: 15968
 2004-08-21 19:51:17 +00:00
Chris Lattner
23a0219a11 Fix warning 
llvm-svn: 15964
 2004-08-21 19:11:03 +00:00
Nate Begeman
dd700ce5e4 Move XForm instructions over to the auto-generated asm writer 
llvm-svn: 15962
 2004-08-21 05:56:39 +00:00
Nate Begeman
6c4bd28dc1 remove some things from the todo list. 
llvm-svn: 15956
 2004-08-20 18:46:54 +00:00
Chris Lattner
cd2b92c36e Do not register ppc64 yet, as it breaks the SparcV9 backend 
llvm-svn: 15955
 2004-08-20 18:09:18 +00:00
Nate Begeman
2f68d05d47 Implement code to convert SetCC into straight line code where appropriate. Add necessary instructions for this transformation to the .td file. 
llvm-svn: 15952
 2004-08-20 09:56:22 +00:00
Misha Brukman
8bfcf0d2e9 Fix opcodes being printed in caps (the more general fix may be `AsmWriter') 
llvm-svn: 15932
 2004-08-19 21:56:12 +00:00
Misha Brukman
1bdac3b68d Stack space for argument passing is 32 regardless of 32- vs. 64-bit arch. 
Thanks to Nate Begeman for pointing this out.

llvm-svn: 15930
 2004-08-19 21:51:19 +00:00
Misha Brukman
70f027b623 LR needs to be saved at 16-byte offset on a 64-bit arch 
llvm-svn: 15929
 2004-08-19 21:36:14 +00:00
Misha Brukman
2c3423694a On 64-bit PowerPC, pointers are 8 bytes, so parameter area offset is 48, not 24 
llvm-svn: 15928
 2004-08-19 21:34:05 +00:00
Misha Brukman
21df6f6757 This PHI has 4 additional operands, not 2. 
llvm-svn: 15926
 2004-08-19 21:00:12 +00:00
Misha Brukman
e438dc224e Use the appropriate 64-bit register description file. 
llvm-svn: 15922
 2004-08-19 19:36:57 +00:00
Misha Brukman
ffaa056155 Fix more remaining 32-bit vestiges of PowerPC 
llvm-svn: 15919
 2004-08-19 18:49:58 +00:00
Misha Brukman
409030d6b4 Fix another vestige of the 32-bit PowerPC backend. 
llvm-svn: 15918
 2004-08-19 16:50:30 +00:00
Misha Brukman
9ec6a58d15 Correct character prepended to global symbols ('.'), use Mangler consistently 
llvm-svn: 15917
 2004-08-19 16:33:56 +00:00
Misha Brukman
b2f68d6752 * Eliminate global base register, r2 is used for that on AIX/PowerPC 
* Fix bug from 32-bit PowerPC days of 2-register long split

llvm-svn: 15916
 2004-08-19 16:29:25 +00:00
Misha Brukman
7a0735b46b Wrap long lines. 
llvm-svn: 15915
 2004-08-19 16:28:30 +00:00
Nate Begeman
0975cdde75 Convert casts that will have no effect into move instructions. 
llvm-svn: 15914
 2004-08-19 08:07:50 +00:00
Nate Begeman
81c97654da Clean up floating point instruction selection. 
Change int->float cast code to put conversion constants in constant pool.
Shorten code sequence for constant pool fp loads.
Remove LOADLoDirect/LOADLoIndirect psuedo instructions and tweak asmwriter

llvm-svn: 15913
 2004-08-19 05:20:54 +00:00
Chris Lattner
8c5096d223 Rename var 
llvm-svn: 15897
 2004-08-18 02:22:55 +00:00
Misha Brukman
631bd1c155 This file is no longer used. 
llvm-svn: 15893
 2004-08-17 20:23:33 +00:00
Chris Lattner
8b5695de66 Start using alignment output routines from AsmPrinter. 
Changes to make this more similar to the X86 asmprinter

Fix overalignment of globals.

llvm-svn: 15891
 2004-08-17 19:26:03 +00:00
Chris Lattner
7ab985b9a2 Print comments with ; 
llvm-svn: 15881
 2004-08-17 16:27:26 +00:00
Nate Begeman
ca0ea7b9ba Re-fix hiding the Frame Pointer from the register allocator in functions 
that have a frame pointer.  This change fixes Burg.  In addition, make
the necessary changes to floating point code gen and constant loading after
Chris Lattner's fixes to the asm writer.  These changes fix MallocBench/gs

llvm-svn: 15873
 2004-08-17 07:17:44 +00:00
Chris Lattner
2e24f55588 Use the emitGlobalConstant defined in AsmPrinter 
llvm-svn: 15869
 2004-08-17 06:37:12 +00:00
Chris Lattner
3bc964c8fb New, more general, interface. 
llvm-svn: 15866
 2004-08-17 06:07:43 +00:00
Misha Brukman
4434e4ce05 Rewrite targets/rules to generate files for just PowerPC or PPC{32,64} 
llvm-svn: 15862
 2004-08-17 05:11:54 +00:00
Misha Brukman
35826543f8 Register classes are target-dependent 
llvm-svn: 15861
 2004-08-17 05:10:31 +00:00
Misha Brukman
47fc7a5955 #include <map> is not necessary here 
llvm-svn: 15860
 2004-08-17 05:09:39 +00:00
Misha Brukman
c358f5b8ef `PowerPC' is no longer a real target 
llvm-svn: 15859
 2004-08-17 05:09:10 +00:00
Misha Brukman
a73414f1da Move variables and methods which need PPC{32,64}* distinction to subclasses 
llvm-svn: 15858
 2004-08-17 05:08:44 +00:00
Misha Brukman
17c41c8bed No need for an `is64bit' flag 
llvm-svn: 15857
 2004-08-17 05:06:47 +00:00
Misha Brukman
471143bc94 PowerPCInstrInfo and PowerPCRegisterInfo have gone away; they are replaced 
by 32- and 64-bit customized files, named appropriately.

llvm-svn: 15856
 2004-08-17 05:05:00 +00:00
Misha Brukman
d5acc2ec78 Consistently name passed with 32 or 64 in their name 
llvm-svn: 15855
 2004-08-17 05:02:58 +00:00
Misha Brukman
52079a6264 PowerPCRegisterInfo no longer takes a bool to differentiate 32 vs 64 bits 
llvm-svn: 15854
 2004-08-17 05:02:18 +00:00
Misha Brukman
5e14dba4fa The PowerPCInstrInfo class has gone away. 
llvm-svn: 15853
 2004-08-17 05:00:46 +00:00
Misha Brukman
daf998c35f PowerPCInstrInfo has gone away, PPC32 and PPC64 share opcodes. 
llvm-svn: 15852
 2004-08-17 04:58:50 +00:00
Misha Brukman
38fe66d9d2 PowerPC 32-/64-bit split: Part II, 64-bit customizations on PowerPC 
llvm-svn: 15851
 2004-08-17 04:57:37 +00:00
Misha Brukman
6ce030bf87 PowerPC 32-/64-bit split: Part I, PPC32* bit files, adapted from former PowerPC* 
llvm-svn: 15850
 2004-08-17 04:55:41 +00:00
Chris Lattner
e4eb00de15 Print float constants as 4 byte values. 
Also, fix endianness problems when cross compiling from little-endian host.

llvm-svn: 15847
 2004-08-17 02:48:44 +00:00
Chris Lattner
e3af4ad9b9 Make sure to put an _ prefix on all identifiers! 
Also, add some (currently disabled) code to print float's as 32-bits.

llvm-svn: 15846
 2004-08-17 02:29:00 +00:00
Chris Lattner
b8bb516d6f More changes to make PPC32 and X86 more similar 
llvm-svn: 15842
 2004-08-16 23:38:36 +00:00
Chris Lattner
f2c9e87003 Minor changes to make the diff be nothing against the X86 version 
llvm-svn: 15841
 2004-08-16 23:30:16 +00:00
Chris Lattner
7fbc0c79e7 Finegrainify namespacification 
Start using the AsmPrinter base class to factor out a bunch of code

llvm-svn: 15840
 2004-08-16 23:25:21 +00:00
Chris Lattner
8448b91e53 There is no need for a cast here 
llvm-svn: 15810
 2004-08-16 05:09:58 +00:00
Nate Begeman
fcb98faaad Update the current state of the world 
llvm-svn: 15809
 2004-08-16 05:06:43 +00:00
Nate Begeman
c7259a2ff0 Fix typo of the word 'implicit' I made resolving a CVS conflict. Whoops! 
llvm-svn: 15808
 2004-08-16 02:12:49 +00:00
Nate Begeman
00a1951fb1 Fix frame pointer handling: 
Reserve R0 in store/load from stack slot for building >32k offsets from SP
or FP.  This also requires we use R11 rather than R0 for holding the LR
value we want to save or restore.  Also, tell the register allocator not
to use R31 (our FP) in functions that have a frame pointer.  These changes
fix Burg.

llvm-svn: 15807
 2004-08-16 01:52:12 +00:00
Nate Begeman
8cb25bf089 Fix mismatched adjust down/up of SP in functions that contain variable 
sized allocas.

llvm-svn: 15806
 2004-08-16 01:50:22 +00:00
Chris Lattner
b5f94a18e0 Insertion methods now return void instead of #instrs inserted. Also, use 
more powerful forms of BuildMI to concisify the code

llvm-svn: 15782
 2004-08-15 22:15:56 +00:00
Chris Lattner
e58190f5f6 These methods no longer take a TargetRegisterClass* operand. 
llvm-svn: 15774
 2004-08-15 21:56:44 +00:00
Alkis Evlogimenos
dbe432aee7 Make this compile on gc 3.4.1 (static_cast to non-const type was not 
allowed).

llvm-svn: 15766
 2004-08-15 09:18:55 +00:00
Nate Begeman
e24434f765 Add future optimization opportunity 
llvm-svn: 15760
 2004-08-15 06:43:10 +00:00
Nate Begeman
2751f754b5 Fix float to int codepath by always allocating 8 bytes for the target of a double store; optimize cmplwi generation. 
llvm-svn: 15759
 2004-08-15 06:42:28 +00:00
Chris Lattner
caa4f4a263 Zimm16 is now dead. Its entry is not removed from the enum, to avoid having 
to renumber everything.  Similar elimination should be applied to other
operand enum values that are only used to format printing in the .s file.

llvm-svn: 15755
 2004-08-15 05:48:47 +00:00
Chris Lattner
6ddb5d6c76 Convert all of the DForm_6* operations, which makes all of the Zimm16 users 
dead.

llvm-svn: 15754
 2004-08-15 05:46:14 +00:00
Chris Lattner
cf6878b6c9 Reenable the CCRC 
llvm-svn: 15752
 2004-08-15 05:31:15 +00:00
Chris Lattner
41839ea5cd Convert the DForm_4 over to the asmprintergen 
llvm-svn: 15751
 2004-08-15 05:20:16 +00:00
Nate Begeman
9705f413b7 Remove dead code 
llvm-svn: 15750
 2004-08-15 00:31:02 +00:00
Chris Lattner
e19e10e800 Print mflr using the asmwriter generator 
llvm-svn: 15749
 2004-08-14 23:27:29 +00:00
Nate Begeman
224deaa061 Replace PowerPCPEI.cpp with target independant PrologEpilogInserter 
llvm-svn: 15746
 2004-08-14 22:16:36 +00:00
Nate Begeman
826fbd0de1 Add support for frame pointers, and large offsets from stack and frame pointers. Adopt elimination of MachineFunction& arg from eliminateFrameIndex. 
llvm-svn: 15745
 2004-08-14 22:13:58 +00:00
Nate Begeman
557f61c4d6 Add indexed forms of load doubleword and load word algebraic for 64 bit targets 
llvm-svn: 15743
 2004-08-14 22:12:20 +00:00
Nate Begeman
03781a00e8 Fix handling of FP constants with single precision, and loading of internal linkage function addresses 
llvm-svn: 15742
 2004-08-14 22:11:38 +00:00
Nate Begeman
52fb57411b Add initial support for using the generated asm writer. Also, fix FP constant printing to always print 8 byte intializers. Move printing of LinkOnce stubs. 
llvm-svn: 15741
 2004-08-14 22:09:10 +00:00
Nate Begeman
56b50cb7e8 Add generation of asm writer from tablegen files to Makefile 
llvm-svn: 15740
 2004-08-14 22:06:38 +00:00
Nate Begeman
7024c8a1a4 Remove an unneeded header and forward declaration 
llvm-svn: 15722
 2004-08-13 09:33:17 +00:00
Nate Begeman
101112a2f4 Fix siod by switching BoolTy to byte rather than int until CFE changes for 
Darwin.  Also, change asm printer to output proper stubs for external
functions whose address is passed as an argument to aid in bugpointing.

llvm-svn: 15721
 2004-08-13 09:32:01 +00:00
Nate Begeman
6cf8366e11 Fix 177.mesa compilation, don't use floating point regs for base addresses! 
llvm-svn: 15720
 2004-08-13 04:45:14 +00:00
Nate Begeman
9f8ad2f245 Fix llc crasher compiling siod by giving BuildMI the correct number of arguments 
llvm-svn: 15719
 2004-08-13 03:56:49 +00:00
Nate Begeman
6a9f2fd2c1 Longs are in one register on PowerPC 64; use appropriate instructions to operate on them. 
llvm-svn: 15711
 2004-08-13 02:20:47 +00:00
Nate Begeman
48359fbcd0 Add some more 64 bit instructions we need for the PowerPC-64 ISel to the tablegen files 
llvm-svn: 15710
 2004-08-13 02:19:26 +00:00
Misha Brukman
f2c87f4794 Disable PPC64 backend by default because LLC cannot choose automatically between 
SparcV9 and PowerPC64 without target triples, since they are both 64-bit
big-endian targets.

llvm-svn: 15688
 2004-08-12 17:16:43 +00:00
Misha Brukman
bf93b04c17 * Correct 64-bit version: blr 1 (not 0) 
* BuildMI() can build 0-param instructions (e.g., NOP)

llvm-svn: 15681
 2004-08-12 03:30:03 +00:00
Misha Brukman
e281f3a2ac * Print out full names for non-GPR or -FPR registers 
* BuildMI() really *does* handle 0 params!

llvm-svn: 15680
 2004-08-12 03:28:47 +00:00
Misha Brukman
2851d39ec4 * Pointers are 8 bytes, hence cLong type on 64-bit PPC 
* Fix loading of GlobalValues

llvm-svn: 15678
 2004-08-12 02:53:01 +00:00
Misha Brukman
8bcb04dd35 Eliminate special-casing 14-bit immediate load/store opcodes 
llvm-svn: 15677
 2004-08-12 02:51:38 +00:00
Misha Brukman
1149a822a2 Correctly print out ASCII literal strings on AIX 
llvm-svn: 15674
 2004-08-12 01:01:13 +00:00
Misha Brukman
d9b3a360fc Mark R2 as available for allocation on Darwin/PPC32, but not AIX/PPC64 
llvm-svn: 15673
 2004-08-12 00:10:01 +00:00
Misha Brukman
14bf47d0d9 * Move AIX into the llvm namespace to be accessed from RegisterInfo 
* Mark InstrInfo with 32 vs. 64 bit flag
* Enable the 64-bit isel and asm printer

llvm-svn: 15672
 2004-08-11 23:47:08 +00:00
Misha Brukman
c24851b980 Set the is64bit flag and propagate it to PowerPCRegisterInfo 
llvm-svn: 15671
 2004-08-11 23:45:43 +00:00
Misha Brukman
42e53e4d94 * Set the is64bit boolean flag in PowerPCRegisterInfo 
* Doubles are 8 bytes in 64-bit PowerPC, and use the general register class
* Use double-word loads and stores for restoring from/saving to stack
* Do not allocate R2 if compiling for AIX

llvm-svn: 15670
 2004-08-11 23:44:55 +00:00
Misha Brukman
fc82624aab 64-bit instruction selector and AIX-specific 64-bit asm printer 
llvm-svn: 15669
 2004-08-11 23:42:15 +00:00
Misha Brukman
0b67e02e9c Fix names of 64-bit CMP*D* opcodes, add LWA and STD* opcodes 
llvm-svn: 15668
 2004-08-11 23:33:34 +00:00
Misha Brukman
08b8a09113 Add support for 64-bit CMPDI, CMPLDI, and CMPLD opcodes 
llvm-svn: 15667
 2004-08-11 20:56:14 +00:00
Misha Brukman
7325a6c790 Add doubleword load/store (64-bit only). 
llvm-svn: 15665
 2004-08-11 15:54:36 +00:00
Misha Brukman
1f4fb14301 Hyphenate ##-bit and remove first-person from comments. 
llvm-svn: 15663
 2004-08-11 13:35:44 +00:00
Nate Begeman
6120e8f04f Clean up 32/64bit and Darwin/AIX split. Next steps: 64 bit ISel, AIX asm printer. 
llvm-svn: 15662
 2004-08-11 07:40:04 +00:00
Chris Lattner
2903154b98 Fix a case where constantexprs could leak into the PPC isel. 
llvm-svn: 15661
 2004-08-11 07:34:50 +00:00
Nate Begeman
c07b78eaa2 Fix 255.vortex by using getClassB instead of getClass 
llvm-svn: 15648
 2004-08-11 03:30:55 +00:00
Misha Brukman
694c9ff1a6 Breaking up the PowerPC target into 32- and 64-bit subparts, Part III: the rest. 
llvm-svn: 15636
 2004-08-11 00:11:25 +00:00
Misha Brukman
47c87a8808 Breaking up the PowerPC target into 32- and 64-bit subparts: Part II: 64-bit. 
llvm-svn: 15635
 2004-08-11 00:10:41 +00:00
Misha Brukman
6713996576 Breaking up the PowerPC target into 32- and 64-bit subparts, Part I: 32-bit. 
llvm-svn: 15634
 2004-08-11 00:09:42 +00:00
Misha Brukman
3f79fbe93f Renamed PPC32 (namespace for regs, opcodes) to PPC to include 64-bit targets 
llvm-svn: 15631
 2004-08-10 22:47:03 +00:00
Misha Brukman
aa0e45b8d8 * Fix file header to use tablegen emacs mode instead of c++ 
* Wrap long line to 80 cols

llvm-svn: 15630
 2004-08-10 21:24:44 +00:00
Nate Begeman
b74ee41754 Fix casts of float to unsigned long 
Replace STDX (store 64 bit int indexed) with STFDX (store double indexed)
Fix latent bug in indexed load generation
Generate indexed loads and stores in many more cases

llvm-svn: 15626
 2004-08-10 20:42:36 +00:00
Misha Brukman
861d6cdcb1 DForm 5/6 extended mneumonics take 3 arguments. 
llvm-svn: 15620
 2004-08-10 19:03:31 +00:00
Misha Brukman
fe7a08a933 Fix DForm_4: format is `op r, r, i' 
llvm-svn: 15613
 2004-08-10 18:07:55 +00:00
Misha Brukman
d345cd9090 Stub definition of the PowerPC CodeEmitter class; this isn't functional (yet). 
llvm-svn: 15600
 2004-08-09 23:03:59 +00:00
Misha Brukman
3da9167cc4 CodePrinter -> AsmPrinter 
llvm-svn: 15599
 2004-08-09 22:27:45 +00:00
Misha Brukman
65afbbca70 Remove ClassPrefix variable as it's no longer used. 
llvm-svn: 15586
 2004-08-09 19:13:29 +00:00
Misha Brukman
1547d8e8d0 Define a ClassPrefix for PowerPC. 
llvm-svn: 15580
 2004-08-09 17:46:26 +00:00
Misha Brukman
eb8758cc0c Generate a code emitter for PowerPC as well, this will be used in the JIT. 
llvm-svn: 15578
 2004-08-09 17:24:32 +00:00
Misha Brukman
ba013330a8 Use instruction formats as defined in the PowerPC ISA manual 
llvm-svn: 15577
 2004-08-09 17:24:04 +00:00
Reid Spencer
8bf21cd984 Fix stack size processing now that the return address isn't an implied 
push onto the top of the stack like x86, which uses the local area
offset.  This will allow the removal of PowerPCPEI.cpp soon.

llvm-svn: 15573
 2004-08-09 01:24:32 +00:00
Chris Lattner
bbf11b1e1d Changes commited for Nate Begeman: 
Use a PowerPC specific prolog epilog inserter to control where spilled
callee save regs are placed on the stack.
Get rid of implicit return address stack slot, save return address reg
(LR) in appropriate slot
Improve code generated for functions that don't have calls or access
globals


Note from Chris: PowerPCPEI will eventually be eliminated, once the
functionality is merged into CodeGen/PrologEpilogInserter.cpp

llvm-svn: 15536
 2004-08-06 06:58:50 +00:00
John Criswell
451362550e Added Louis Gerbarg. Louis is given credit in the CREDITS.TXT file, so I 
assume Louis also holds copyright.

llvm-svn: 15534
 2004-08-05 23:46:27 +00:00
John Criswell
45cf7f6a0f Add additional copyright notice for the PowerPC backend. 
Thanks Nate!

llvm-svn: 15531
 2004-08-05 20:36:00 +00:00
Misha Brukman
4a2823d1ae Simplify makefile by combining all TableGen dependencies into one variable 
llvm-svn: 15527
 2004-08-05 18:34:15 +00:00
Misha Brukman
3014727a37 Align dependencies so they don't hurt the eyes to look at them 
llvm-svn: 15504
 2004-08-04 21:37:41 +00:00
Misha Brukman
b296dd721c Remove unused instruction classes 
llvm-svn: 15501
 2004-08-04 21:18:57 +00:00
Misha Brukman
ef93ca23ba Make tablegen targets depend on PowerPCInstrFormats.td as well 
llvm-svn: 15500
 2004-08-04 21:18:36 +00:00
Chris Lattner
1ce22d3d43 getValues does not exist 
llvm-svn: 15495
 2004-08-04 17:29:14 +00:00
Misha Brukman
07f8b33325 Remove unused opcodes. 
llvm-svn: 15447
 2004-08-03 20:23:44 +00:00
Misha Brukman
10a585beaf * Use simpler instruction templates to define instructions 
* Fix several extended opcodes

llvm-svn: 15423
 2004-08-02 21:58:52 +00:00
Misha Brukman
e7ad7b2f2a Replace patterns 0, 4, and 5 with simpler heirarchical definitions that use the 
official PowerPC instruction format lingo: X- and D-form.

llvm-svn: 15422
 2004-08-02 21:56:35 +00:00
Misha Brukman
f2119a5b6f Separate instruction formats from instruction definitions. 
llvm-svn: 15414
 2004-08-02 16:54:54 +00:00
Misha Brukman
8209358fca * Conditional save/restore of LR disabled as it's not quite correct 
* sumarray2d fixed: large fixed-size alloca
* make is now compileable
* Re-organized tests to fit them under proper headings

Patch by Nate Begeman.

llvm-svn: 15347
 2004-07-30 15:53:09 +00:00
Misha Brukman
f0c6eaca10 Do not mark LR as callee-save: not quite correctly done. Patch: Nate Begeman. 
llvm-svn: 15346
 2004-07-30 15:51:51 +00:00
Misha Brukman
27ced926da * Temporarily suspend LR save/restore optimization as it is not quite correct 
* Implement large fixed-size allocas            Entire patch by Nate Begeman.

llvm-svn: 15345
 2004-07-30 15:50:45 +00:00
Chris Lattner
6bea23ff54 Minor corrections 
llvm-svn: 15309
 2004-07-28 20:18:53 +00:00
Misha Brukman
8e19054114 Add notes on bug involving casting ulong -> double, thanks to Nate Begeman. 
llvm-svn: 15307
 2004-07-28 19:16:10 +00:00
Misha Brukman
a8bcaec663 Simplify loading (un)signed constants to registers, patch by Nate Begeman. 
llvm-svn: 15306
 2004-07-28 19:13:49 +00:00
Misha Brukman
b699e3d825 Remove an extra 8 byte distance penalty. Patch by Nate Begeman. 
llvm-svn: 15305
 2004-07-28 19:13:07 +00:00
Misha Brukman
6e134ad499 Find longs by type, not by their primitive size being 64. Patch by Nate Begeman. 
llvm-svn: 15304
 2004-07-28 19:12:24 +00:00
Misha Brukman
8c293deaad LI can only take signed values, so values > 32767 can only be loaded with ORI 
llvm-svn: 15299
 2004-07-28 00:56:04 +00:00
Misha Brukman
ac63bc04f8 Reorganize tests to place them in proper directories. 
llvm-svn: 15298
 2004-07-28 00:55:12 +00:00
Misha Brukman
8fc18d7d1c UnitTests 2003-05-26-Shorts and 2003-07-09-LoadShorts have been fixed; 
2003-05-22-VarSizeArray is broken.

llvm-svn: 15297
 2004-07-28 00:01:41 +00:00
Misha Brukman
1b4bc02316 Fix printing of immediate operands by looking at their operand types in 
the TargetInstrInfo.  This fixes UnitTests 2003-05-26-Shorts and
2003-07-09-LoadShorts.

llvm-svn: 15296
 2004-07-28 00:00:48 +00:00
Misha Brukman
148ad01de1 Renamed files: 
* PowerPCReg.td => PowerPCRegisterinfo.td
* PowerPCInstrs.td => PowerPCInstrInfo.td

llvm-svn: 15295
 2004-07-27 23:29:16 +00:00
Misha Brukman
b779843f6b Branch selection support implemented by Nate Begeman for long branches. 
llvm-svn: 15288
 2004-07-27 18:43:04 +00:00
Misha Brukman
b07f569386 Correctly print out long branches, assert on finding pseudo instr COND_BRANCH 
Patch by Nate Begeman.

llvm-svn: 15286
 2004-07-27 18:40:39 +00:00
Misha Brukman
ef0cbd830c Run the branch selection pass right before the asm printer. 
Patch by Nate Begeman.

llvm-svn: 15285
 2004-07-27 18:39:34 +00:00
Misha Brukman
0f26a3309f Remove empty unused method processFunctionBeforeFrameFinalized() 
llvm-svn: 15284
 2004-07-27 18:38:40 +00:00
Misha Brukman
8c047d4fad Add COND_BRANCH pseudo instruction, patch by Nate Begeman. 
llvm-svn: 15283
 2004-07-27 18:35:54 +00:00
Misha Brukman
d7d501d518 Build COND_BRANCHes which may become long or short, decided by a later pass. 
Patch by Nate Begeman.

llvm-svn: 15282
 2004-07-27 18:35:23 +00:00
Misha Brukman
8e2f8de3c3 Moved definition of invertPPCBranchOpcode() into PowerPCInstrInfo class. 
Patch by Nate Begeman.

llvm-svn: 15281
 2004-07-27 18:34:11 +00:00
Misha Brukman
0fe1f5d880 Add PowerPCBranchSelector to discover which are `long' branches. 
Contributed by Nate Begeman.

llvm-svn: 15280
 2004-07-27 18:33:06 +00:00
Misha Brukman
c22bbdd36d Fixed saving/restoring LR unconditionally, only done as necessary. 
llvm-svn: 15275
 2004-07-27 17:17:48 +00:00
Misha Brukman
adb86dba29 Save and restore LR just like any other register and ONLY if we actually modify 
it (due to calls or globals access).  We now compile `void empty(){}' to `blr'.

llvm-svn: 15274
 2004-07-27 17:17:18 +00:00
Misha Brukman
6fec7336fe LR is a 32-bit int reg 
llvm-svn: 15273
 2004-07-27 17:15:32 +00:00
Misha Brukman
93b0ea58a2 MovePCtoLR (which is `bl' in disguise) modifies LR implicitly 
llvm-svn: 15272
 2004-07-27 17:15:05 +00:00
Misha Brukman
4be6841bc0 Register LR is callee-saved 
llvm-svn: 15271
 2004-07-27 17:14:34 +00:00
Misha Brukman
a3ac216fce Add IMPLICIT_DEF of LR for branch-and-link instrs (calls and global accesses) 
llvm-svn: 15270
 2004-07-27 17:13:58 +00:00
Misha Brukman
6272268028 Do not store the stack pointer if the stack size is 0. 
Also, convert C-style comments to C++ and make sure code wraps at 80 cols.

llvm-svn: 15245
 2004-07-26 22:00:26 +00:00
Misha Brukman
a979e8a08a ADDI can take several forms, including: 
addi r1, r2, 0
  addi r1, <frame index #n>, 0

so we must check for the second parameter being a register for this instruction
to be considered a reg-to-reg copy.

llvm-svn: 15244
 2004-07-26 21:50:38 +00:00
Misha Brukman
a2cf775362 assert() on MachineInstr properties instead of checking them dynamically 
llvm-svn: 15243
 2004-07-26 21:35:58 +00:00
Misha Brukman
73687cfcc6 * Recognize `addi r1, r2, 0' a move instruction 
* List formats of instructions currently recognized as moves

llvm-svn: 15242
 2004-07-26 21:29:00 +00:00
Misha Brukman
288289f9a7 * Rewrote casts 
* Implemented GEP folding
* Dynamically output global address stuff once per function
* Fix casting fp<->short/byte

Patch contributed by Nate Begeman.

llvm-svn: 15237
 2004-07-26 18:13:24 +00:00
Misha Brukman
bf2ad22ff6 Increment the label number in runOnFunction() rather than while printing out 
some instruction.  Patch by Nate Begeman.

llvm-svn: 15236
 2004-07-26 16:28:33 +00:00
Misha Brukman
796cc48f99 More notes on bugs, unimplemented features, and suggested code improvements. 
Written by Nate Begeman.

llvm-svn: 15235
 2004-07-26 16:23:55 +00:00
Misha Brukman
29efda2e6b Fix subtracting values > 2^15 in the prologue/epilogue, by Nate Begeman. 
llvm-svn: 15234
 2004-07-26 16:22:52 +00:00
Misha Brukman
c1e23e1939 Running list of bugs, unimplemented features, currently broken tests, until we 
have a nightly tester set up for PowerPC.

llvm-svn: 15147
 2004-07-23 22:37:22 +00:00
Misha Brukman
c7291558eb Eliminate spurious empty space; make code easier to page through. 
llvm-svn: 15146
 2004-07-23 22:35:49 +00:00
Misha Brukman
eaac0bbed7 Simplify boolean test. 
llvm-svn: 15145
 2004-07-23 21:43:26 +00:00
Misha Brukman
a899694208 Implement casting a floating point to 32-bit unsigned value 
llvm-svn: 15143
 2004-07-23 20:32:59 +00:00
Misha Brukman
ef73e28236 * Codegen of GEPs dramatically improved by folding multiplies and adds 
* Function pointers implemented correctly using appropriate stubs

Contributed by Nate Begeman.

llvm-svn: 15133
 2004-07-23 16:08:20 +00:00
Misha Brukman
2ad2adf8cb Bool alignment on MacOSX/PowerPC is 4 bytes. 
llvm-svn: 15122
 2004-07-23 01:11:46 +00:00
Misha Brukman
3f338d98a6 * Change class of BoolTy back to cInt 
* Fix indentation back to 2 spaces

llvm-svn: 15121
 2004-07-23 01:11:19 +00:00
Misha Brukman
1109566c8d * Change bool from cInt to cByte (for now) 
* Don't allow negative immediates to users of unsigned immediates
* Fix long compares
* Support <const int>, op as a potential immediate candidate
* Fix sign extension of short and byte loads
* Fix and improve integer casts
* Fix passing of doubles as vararg functions

Patch contributed by Nate Begeman.

llvm-svn: 15109
 2004-07-22 15:58:04 +00:00
Misha Brukman
28e92a3fde * Add the lost fix to define the second reg of a 2-reg representation of longs 
* Fix opcode RLWNM -> RLWINM since it uses an immediate const shift value

llvm-svn: 15087
 2004-07-21 20:30:18 +00:00
Misha Brukman
9543849102 * Speed up canUseAsImmediateForOpcode() by comparing Operand before 
dyn_cast<>ing and checking Constant's value
* Convert tabs to spaces

llvm-svn: 15086
 2004-07-21 20:22:06 +00:00
Misha Brukman
7507403c2b * Fix printing of signed immediate values (Nate Begeman) 
* Fix printing of `zeroinitializer'
* Fix printing of `linkonce' globals, complete with stubs

llvm-svn: 15084
 2004-07-21 20:11:11 +00:00
Misha Brukman
64f203922d * Fix printing of signed immediate values 
* Generation of opcodes that take 16 bit immediates
* Rewrote multiply to be correct for 64 bit values
* Rewrote all the long handling to be correct for PowerPC
* Fix visitSelectInst() to define the upper register of the pair of regs
  representing a long value

Patch contributed by Nate Begeman.

llvm-svn: 15083
 2004-07-21 20:09:08 +00:00
Misha Brukman
752584b520 Use addSImm() instead of addImm() for stack offsets, which may be negative. 
llvm-svn: 15081
 2004-07-21 19:36:57 +00:00
Misha Brukman
3d395cbda3 Add SUBI instruction 
llvm-svn: 15077
 2004-07-21 15:53:04 +00:00
Misha Brukman
3e3d141a92 Shorts are aligned to 2 bytes, bools to 1 byte (in structs). 
llvm-svn: 15048
 2004-07-20 20:59:57 +00:00
Misha Brukman
6283677946 Treat external variables similarly to those with weak linkage: load indirect. 
llvm-svn: 15047
 2004-07-20 20:43:05 +00:00
Misha Brukman
f47940855d Differentiate between global and weak symbol loads 
llvm-svn: 15037
 2004-07-20 15:52:25 +00:00
Misha Brukman
fe769110a0 * Differentiate between global and weak symbol loads 
* Fix functions that take more than 32 bytes of args
* Alignment of doubles in structs is 4 bytes, not 8
* Fix passing long args: rN = hi, rN+1 = lo
* Rewrite signed divide
* Rewrite Intrinsic::returnaddress

Patch courtesy of Nate Begeman.

llvm-svn: 15036
 2004-07-20 15:51:37 +00:00
Misha Brukman
5b5aff390a Differentiate between global and weak symbol loads 
llvm-svn: 15035
 2004-07-20 15:45:27 +00:00
Misha Brukman
1942534307 Double alignment in structs is 4 bytes, not 8. Patch by Nate Begeman. 
llvm-svn: 15034
 2004-07-20 15:43:25 +00:00
Misha Brukman
0a12f91274 Fix stack frame layout in prologue/epilogue. Patch courtesy of Nate Begeman. 
llvm-svn: 15026
 2004-07-20 02:23:09 +00:00
Misha Brukman
6baf9045f6 Move handing of GlobalValues from getReg() to copyConstantToRegister(), this 
will avoid extra register-to-register copies.  Thanks to Chris for the idea.

llvm-svn: 15019
 2004-07-20 00:59:38 +00:00
Misha Brukman
bec77933fa * Fn args passed in registers are now recorded as used by the call instruction 
`-> asm printer updated to not print out those registers with the call instr

All of Shootout tests now work.  Great thanks to Nate Begeman for the patch!

llvm-svn: 15015
 2004-07-20 00:42:19 +00:00
Misha Brukman
fdc633a29b * cFP class split into cFP32 and cFP64 
* Fn args passed in registers are now recorded as used by the call instruction
`-> asm printer updated to not print out those registers with the call instr
* Stack frame layout in prolog/epilog fixed, spills and vararg fns now work
* float/double to signed int codegen now correct
* various single precision float codegen bugs fixed
* const integer multiply codegen fixed
* select and setcc blocks inserted into the correct place in machine CFG
* load of integer constant code optimized

All of Shootout tests now work.  Great thanks to Nate Begeman for the patch!

llvm-svn: 15014
 2004-07-20 00:41:46 +00:00
Chris Lattner
8eb32809bc Fix infinite loop 
llvm-svn: 14971
 2004-07-18 18:45:01 +00:00
Chris Lattner
c62e642a1a CPR Fixes 
llvm-svn: 14961
 2004-07-18 07:29:35 +00:00