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437 Commits

Author SHA1 Message Date
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
Misha Brukman
c52cf4db44 We don't really need to #include IPO.h into this file. 
llvm-svn: 14911
 2004-07-17 18:37:46 +00:00
Misha Brukman
36bf6aa37c * Use LI(S) to copy constants into registers intead of ADDI(S) as the latter is 
a funky way to "use" R0 for a 0-valued operand
* Add IMPLICIT_DEFs for incoming function arguments via registers to help the
  register allocator not clobber those registers
* Implement comparisons with longs
* Teach emitSelectOperation() to fold the SetCC operation

Patch contributed by Nate Begeman

llvm-svn: 14901
 2004-07-16 21:06:24 +00:00
Misha Brukman
3a720bbeaa * Store all non-volatile int registers R13-31 on the stack, restore on exit 
* Fix comment formatting

llvm-svn: 14900
 2004-07-16 20:55:20 +00:00
Misha Brukman
2fd8a66d40 Fix code formatting 
llvm-svn: 14899
 2004-07-16 20:54:25 +00:00
Misha Brukman
d2ddc81a25 Implement PowerPCInstrInfo::isMoveInstr(), patch by Nate Begeman 
llvm-svn: 14898
 2004-07-16 20:51:55 +00:00
Misha Brukman
2bfd750278 Add prototype for TargetInstrInfo::isMoveInstr() 
llvm-svn: 14897
 2004-07-16 20:50:55 +00:00
Misha Brukman
468900296b * Enable allocation of registers r2-r10 
* Allocate registers 13-31 backwards (to be able to store them all at once)

llvm-svn: 14896
 2004-07-16 20:35:20 +00:00
Misha Brukman
f93e5532d5 Add IMPLICIT_DEFS pseudo-instruction; patch by: Nate Begeman 
llvm-svn: 14895
 2004-07-16 20:33:41 +00:00
Misha Brukman
4b944fcdf9 The generated instruction selector isn't (yet) functional 
llvm-svn: 14894
 2004-07-16 20:31:13 +00:00
Misha Brukman
c3c9dc04ac * Output non-lazy linking stubs for external global variables 
* Get rid of dead and #if 0'd code
* Minor for loop speed-up: save end iterator instead of querying every time

llvm-svn: 14893
 2004-07-16 20:29:04 +00:00
Misha Brukman
0d35548f37 Define double alignment as 8 bytes now that assert(DoubleAlignment == PointerSize) 
has been eliminated

llvm-svn: 14891
 2004-07-16 19:32:12 +00:00
Misha Brukman
0a92212542 * Add spaces between words and numbers in comments printed out for longs/floats 
* Print out IMPLICIT_DEFS as comments in the assembly, patch by Nate Begeman

llvm-svn: 14890
 2004-07-16 19:01:13 +00:00
Brian Gaeke
53dc31efcd Do IMPLICIT_DEFs on incoming args' hard regs, to avoid confusing the regalloc. 
Support single-fp incoming args.
Support single-fp outgoing args ('call' operands).
Support double-fp return values.

llvm-svn: 14880
 2004-07-16 10:31:25 +00:00
Chris Lattner
60fb3d60a8 The powerpc is now gone. However it is now just known as the Skeleton target. 
llvm-svn: 14877
 2004-07-16 07:14:34 +00:00
Chris Lattner
b9ec0b791c Revert stuff that I didn't mean to checkin 
llvm-svn: 14844
 2004-07-15 02:33:38 +00:00
Chris Lattner
c4888ccda7 Patches towards fixing PR341 
llvm-svn: 14841
 2004-07-15 02:14:30 +00:00
Misha Brukman
d6a9646f29 Make sure MTSPR instruction is inserted into the BasicBlock 
llvm-svn: 14822
 2004-07-14 18:26:31 +00:00
Misha Brukman
0f42826f30 Don't define the same register twice when loading a ConstantPointerRef to a reg 
llvm-svn: 14819
 2004-07-14 17:57:04 +00:00
Misha Brukman
73d729838f * Fix multiplication by powers of two and otherwise 
* Clarify variable name (StoreInst SI instead of LI)

llvm-svn: 14818
 2004-07-14 15:29:51 +00:00
Misha Brukman
79b089abff * Specify that FP arith options have 3 operands 
* Correctly load FP constants from the constant pool, should be refactored

llvm-svn: 14799
 2004-07-13 15:35:45 +00:00
Misha Brukman
449715a57d Correctly load FP constants out of the constant pool. 
llvm-svn: 14782
 2004-07-12 23:49:47 +00:00
Misha Brukman
b7f3d7b04b Implement getModuleMatchQuality and getJITMatchQuality() for PowerPC 
llvm-svn: 14780
 2004-07-12 23:36:12 +00:00
Chris Lattner
773f2d65c2 Delete the allocate*TargetMachine function, which is now dead. 
The shared command line options are now in a header that makes sense.

llvm-svn: 14757
 2004-07-11 04:17:58 +00:00
Chris Lattner
6331eb6bbe Delete the allocate*TargetMachine function, which is now dead . 
The shared command line options are now in a header that makes sense.

llvm-svn: 14756
 2004-07-11 04:17:10 +00:00
Chris Lattner
b67e3b01bc Make these format a bit nicer 
llvm-svn: 14747
 2004-07-11 03:27:42 +00:00
Chris Lattner
2ada866a78 Auto-registrate target 
llvm-svn: 14745
 2004-07-11 02:48:49 +00:00
Chris Lattner
164659f141 Add compilability 
llvm-svn: 14744
 2004-07-11 02:48:28 +00:00
Misha Brukman
f8f753f04b * Add support for indexing into structures, thanks to Chris (x86) 
The large diff is because of indentation of a whole region
* Fix querying predecessor blocks in SelectPHINodes(), thanks to Brian (v8)
* Add support for external functions malloc() and free()
* Fix some code indentation

Remember, kids: It's not plagiarism if you "creatively borrow" from your
sources.  It's called "research"!

llvm-svn: 14723
 2004-07-09 15:45:07 +00:00
Misha Brukman
1881beb0b3 Read/write the offset value for stack-relative loads via correct instr operand. 
llvm-svn: 14722
 2004-07-09 15:37:16 +00:00
Misha Brukman
b83ace891d Add support for __fixdfdi(), __floatdisf(), and __floatdidf() external functions 
llvm-svn: 14703
 2004-07-08 19:41:16 +00:00
Misha Brukman
db4cddea8d * Use several Function* for external functions instead of a std::map 
* Non-const FP values must be loaded into int regs (for vararg fns) via memory

llvm-svn: 14701
 2004-07-08 18:27:59 +00:00
Misha Brukman
869f2b7219 * Add support for loading FP constants from the constant pool 
* Load FP values into int regs as well for vararg functions; without memory ops!

llvm-svn: 14700
 2004-07-08 18:02:38 +00:00
Misha Brukman
3bbd3cd1de * Fix header comment, excise references to X86 
* Add suport for printing out references to constant pool indices

llvm-svn: 14699
 2004-07-08 17:58:04 +00:00
Misha Brukman
93b47cc963 * Use a map for caching lookups to external functions (fp div/rem) 
* Tabs to spaces

llvm-svn: 14673
 2004-07-07 20:07:22 +00:00
Misha Brukman
f2473e6267 * Wrap long lines (comments and code) 
* Tabs to spaces

llvm-svn: 14672
 2004-07-07 20:01:36 +00:00
Misha Brukman
d5a439760c Add fmod() to the Module being compiled so that it gets a stub in the asm file 
llvm-svn: 14670
 2004-07-07 15:36:18 +00:00
Misha Brukman
ef78244e72 * Add support for calling vararg functions (must pass doubles in int regs too) 
* Make visitSetCondInst() share condition-generating code with EmitComparison()
* There are 13 FPRs for function-passing arguments, not 8
* Do not rely on registers being sequential, use an array lookup
* In unimplemented switch cases, send an error and abort instead of silent
  fall-through
* Add doInitialization() for adding function prototypes for external math fns
* Minor changes: fix indentation, spacing, code clarity

llvm-svn: 14653
 2004-07-06 22:51:53 +00:00
Misha Brukman
4543cea6ae Use the more compact bl' instead of cryptic (but equivalent) bcl 20,31' 
llvm-svn: 14652
 2004-07-06 22:40:34 +00:00
Misha Brukman
0b6de12a84 * Add utility functions: convert SetCC => PPC opcode and invert PPC opcode 
* If SetCondInst is folded into BranchInst (and it is the only user), do not
  emit code for SetCondInst
* Fix assembly opcodes in comments in visitSetCondInst()
* Fix codegen of conditional branches

llvm-svn: 14643
 2004-07-06 15:32:44 +00:00
Misha Brukman
607dd868a8 Add FIXME notes for spilling int/fp regs (need to calculate stack space). 
llvm-svn: 14581
 2004-07-02 17:54:38 +00:00
Chris Lattner
a99a36881f Fix all of those problems that the PPC backend has running 176.gcc :) 
llvm-svn: 14565
 2004-07-02 05:48:42 +00:00
Misha Brukman
c9ecaeb69d * Follow the PowerPC convention of leaving 24 bytes for linking on the stack. 
* Also leave space for spilling integer registers (this should be calculated)

llvm-svn: 14554
 2004-07-01 21:35:00 +00:00
Misha Brukman
f5deab6100 * Get rid of constant-expr handling code: we use the ConstantExpr lowering pass 
* Use the SetCC handling code in the format of Brian's V8
* Add FIXMEs where calls to functions are being made without adding them to the
  Module first... they cause missing symbols at assembly-time.

llvm-svn: 14553
 2004-07-01 21:34:10 +00:00
Misha Brukman
1546c2e9c0 Wrap long line 
llvm-svn: 14552
 2004-07-01 21:27:59 +00:00
Misha Brukman
e409874a9f * Do not allocate r0 as we use it indiscriminantly in the instr selector. 
* Do not define CR register class because we don't (yet) have the i4 type

llvm-svn: 14551
 2004-07-01 21:24:50 +00:00
Misha Brukman
b296163bb1 Check if operand has an allocated reg before requesting it. 
llvm-svn: 14550
 2004-07-01 21:09:12 +00:00
Misha Brukman
efcb6b8c2c * Coalesce the handy CALL* alias opcodes with the standard ones 
* Congregate more branch-and-link opcodes together
* Mark FP, CPR, and special registers as volatile across calls

llvm-svn: 14511
 2004-06-30 22:00:45 +00:00
Misha Brukman
7089b3d426 * Allow more registers to be allocated from the general register pool 
* Define the condition register class

llvm-svn: 14510
 2004-06-30 21:54:50 +00:00
Misha Brukman
08a07e969f * Inquire about the number of operands from the instruction directly 
* Only check for a register if we are sure the instruction has one allocated

llvm-svn: 14509
 2004-06-30 21:54:12 +00:00
Misha Brukman
49e6aa1ba7 Always assume a function may have calls because the printer may add `bl' to get 
the PC in a code sequence for global variables.

llvm-svn: 14506
 2004-06-30 00:09:12 +00:00
Misha Brukman
3422760e16 * Don't save LR when outputting globals: it's already saved on the stack once 
for the function
* Registers aren't necessarily sequential wrt their enums, don't rely on it
  when emitting function arguments into sequential registers
* Remove X86-specific comments about AL/BL/AH/BH/EDX/etc
* Add an abort() for an unimplemented signed right shift
* The src operand for a GEP was never emitted!  Fixed.
* We can skip zero-valued GEP indices as they are no-ops.

"Hello, World!" now works.

llvm-svn: 14505
 2004-06-29 23:45:05 +00:00
Misha Brukman
e9166fd352 * Stop using BBNumbering, we don't really need it 
* Only increment labelNumber once, because it's used by both Load{hi,lo}Addr
* There is no .bss section on PowerPC
* Use .align 2 instead of other random numbers

llvm-svn: 14504
 2004-06-29 23:40:57 +00:00
Misha Brukman
79a92e35b4 Set up the prologue and epilogue to be more like the manual and GCC output. 
llvm-svn: 14502
 2004-06-29 23:38:26 +00:00
Misha Brukman
2242e8d27f * Use LA instead of LWZ for LoadLoAddr 
* Specify the isCall bit and caller-save registers for some call instrs

llvm-svn: 14501
 2004-06-29 23:37:36 +00:00
Misha Brukman
a0721ac147 Only allocate non-volatile registers R13-31 (for now). 
llvm-svn: 14500
 2004-06-29 23:35:32 +00:00
Misha Brukman
ddf07d1c08 Lower ConstantExpressions before the code generator. 
llvm-svn: 14497
 2004-06-29 23:33:20 +00:00
Misha Brukman
01841234e8 * Fix saving LR in function prologue 
* Adjust epilogue restore sequence to match the PowerPC documentation

llvm-svn: 14480
 2004-06-29 17:14:42 +00:00
Misha Brukman
08f6a46ce2 Assembly syntax/comment fixes by Nate Begeman. 
llvm-svn: 14479
 2004-06-29 17:13:26 +00:00
Chris Lattner
dda82ce624 The code generator should work with unreachable blocks. If not, then this 
is a bug that should be fixed in the code generator, not papered over with
the simplifycfg pass.  Eliminating this makes bugpoint much more useful

llvm-svn: 14477
 2004-06-29 07:20:16 +00:00
Misha Brukman
7627e1ff1a Can't print out machine code before it is constructed. 
llvm-svn: 14472
 2004-06-28 21:16:57 +00:00
Misha Brukman
92cc94a0e5 Fix the assembly opcode on LOADLoAddr, courtesy of Nate Begeman. 
llvm-svn: 14470
 2004-06-28 18:27:08 +00:00
Misha Brukman
2f7332b752 Set isBranch and isTerminator bits on all branch instructions. 
llvm-svn: 14469
 2004-06-28 18:23:35 +00:00
Misha Brukman
8f1e58dfe3 Fix loading and storing PC-relative static variables, courtesy of Nate Begeman. 
llvm-svn: 14468
 2004-06-28 18:20:59 +00:00
Misha Brukman
2eccf504e2 No need to generate a lazy-linking stub for internal functions, they can be 
resolved by the static linker.

llvm-svn: 14467
 2004-06-28 18:03:37 +00:00
Misha Brukman
5a52b7aa36 Do not set the `link' bit when branching to the first BB of a function, as it 
will cause an infinite loop.  The link bit is only used for calling functions.

llvm-svn: 14466
 2004-06-28 17:57:40 +00:00
Misha Brukman
02ac5488d5 Fix spacing around function arguments. 
llvm-svn: 14463
 2004-06-28 15:53:27 +00:00
Misha Brukman
aef8fec73f Allow debugging machine instrs (by printout) before/after isel and regalloc 
llvm-svn: 14416
 2004-06-25 19:57:47 +00:00
Misha Brukman
64c1484679 Combine several if stmts with returns into an if-then-elseif-else chain. 
llvm-svn: 14414
 2004-06-25 19:24:52 +00:00
Misha Brukman
d903511cdf Do not move any values into registers for a void return (there isn't anything). 
llvm-svn: 14413
 2004-06-25 19:04:27 +00:00
Misha Brukman
981cf1f1b4 Convert tabs to spaces. 
llvm-svn: 14412
 2004-06-25 18:45:07 +00:00
Misha Brukman
8f9b970b80 Fix opcode: no immediate in an `or r1, r2, r3' (all registers) instr. 
llvm-svn: 14411
 2004-06-25 18:36:53 +00:00
Misha Brukman
d635cd485a * Be consistent about MachineBB labels and references to them in instr stream 
* Use MachineBB's built-in numbering system instead of reinventing one

llvm-svn: 14408
 2004-06-25 15:42:10 +00:00
Misha Brukman
4f15d2830a * Initialize the entire array statically, not member-at-a-time 
* Remove x86-specific comment re: intel vs. at&t assembly syntax

llvm-svn: 14406
 2004-06-25 15:11:34 +00:00
Misha Brukman
fb9eb50899 Fix bug in previous checkin. 
llvm-svn: 14405
 2004-06-25 14:57:19 +00:00
Misha Brukman
4e610581b0 * Wrap long lines 
* Replace silent fall-through FIXME comments with an error to cerr and an abort
* No need to set size of statically initialized arrays

llvm-svn: 14404
 2004-06-25 14:50:41 +00:00
Misha Brukman
167dd03c82 Excise X86-specific comments. 
llvm-svn: 14403
 2004-06-25 14:13:26 +00:00
Misha Brukman
854b18fd19 Add option to print out machine code before register allocation. 
llvm-svn: 14387
 2004-06-24 23:55:01 +00:00
Misha Brukman
91ffab9644 Use DEBUG() guard for printing out debug info. 
llvm-svn: 14386
 2004-06-24 23:54:05 +00:00
Misha Brukman
1d7c31b2c1 Add a `break' in the switch/case statement between the int/fp sections. 
llvm-svn: 14385
 2004-06-24 23:53:24 +00:00
Misha Brukman
4e3d5069db * Lowercase the register names 
* Parenthesize assert() expressions correctly
* Fix spacing around for() and if() statements

llvm-svn: 14384
 2004-06-24 23:51:00 +00:00
Misha Brukman
5d0be46fb7 * Tabs to spaces 
* Send an error message to std::cerr before abort()ing

llvm-svn: 14381
 2004-06-24 23:19:36 +00:00
Misha Brukman
b312aa9f4b * Tabs to spaces 
* Remove unnecessary parens, braces, clean up code layout

llvm-svn: 14379
 2004-06-24 23:04:11 +00:00
Misha Brukman
2faa0989d0 Unindent some more code to be consistent. 
llvm-svn: 14377
 2004-06-24 22:00:15 +00:00
Misha Brukman
021bf53a50 Unindent some code, it only needs 2 spaces. 
llvm-svn: 14376
 2004-06-24 21:56:15 +00:00
Misha Brukman
ec698da314 In emitting code for a GEP instr, iterate over GEPTypes because there is one 
more operand in GEPOps than there are types in GEPTypes: the pointer that is the
first operand of the GEP instruction.

llvm-svn: 14375
 2004-06-24 21:54:47 +00:00
Misha Brukman
0e076dbd7a * Order #includes 
* Use the DEBUG() guard for debug printouts

llvm-svn: 14367
 2004-06-24 17:31:42 +00:00
Misha Brukman
ae07b686fa Spell out `NoFramePointerElim'. 
llvm-svn: 14300
 2004-06-21 21:18:48 +00:00
Misha Brukman
a2ac4e4345 Use the common `NoFPElim' setting instead of our own. 
llvm-svn: 14298
 2004-06-21 21:10:24 +00:00
Misha Brukman
a79674d478 * Make indentation consistent at 2 chars 
* Doxygenify function comments
* Wrap code at 80 cols

llvm-svn: 14295
 2004-06-21 20:22:03 +00:00
Misha Brukman
4424ef9dd1 This file is no longer applicable. 
llvm-svn: 14294
 2004-06-21 20:17:41 +00:00
Misha Brukman
3d93b9ccca llvm/IntrinsicLowering.h => llvm/CodeGen/IntrinsicLowering.h 
llvm-svn: 14292
 2004-06-21 18:30:31 +00:00
Misha Brukman
36089f7034 Intrinsic::isnan has gone away, support for it commented out. 
Intrinsic::isunordered has arrived, and we just use the standard lowering
pass for it.

llvm-svn: 14290
 2004-06-21 17:58:36 +00:00
Misha Brukman
1c26b2e29d Convert tabs to spaces. 
llvm-svn: 14289
 2004-06-21 17:41:12 +00:00
Misha Brukman
30e1885192 Type::getPrimitiveID() -> getTypeID() 
llvm-svn: 14288
 2004-06-21 17:25:55 +00:00
Misha Brukman
76b4796e7c Type::getPrimitiveID() -> getTypeID() 
llvm-svn: 14287
 2004-06-21 17:19:08 +00:00
Misha Brukman
269034c151 Initial revision 
llvm-svn: 14283
 2004-06-21 16:55:25 +00:00
Misha Brukman
130e02f232 Add file comment. 
llvm-svn: 14172
 2004-06-14 15:13:59 +00:00
Chris Lattner
1f0e0d55c4 Fix the fixed stack offset, patch contributed by Vladimir Prus 
llvm-svn: 14110
 2004-06-10 06:19:25 +00:00
Chris Lattner
5effdb67b7 fine grainify namespacification 
llvm-svn: 11959
 2004-02-28 19:53:18 +00:00
Alkis Evlogimenos
e8f9647831 Add back machine code deleter pass until we get a MachineCode pass 
that will be responsible for the creation of MachineFunctions and will
be required by all MachineFunctionPass passes.

llvm-svn: 11453
 2004-02-15 00:03:15 +00:00
Alkis Evlogimenos
b755d35fd2 Change MachineBasicBlock's vector of MachineInstr pointers into an 
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.

llvm-svn: 11340
 2004-02-12 02:27:10 +00:00
Brian Gaeke
355bc299b7 Include PowerPC.h. Flesh out the stub versions of addPassesToEmitAssembly() 
and addPassesToJITCompile() slightly.

llvm-svn: 11076
 2004-02-02 19:06:36 +00:00
Brian Gaeke
24f70fa16d Add comments describing how you would add prototypes for factory methods for 
PowerPC-specific passes here.

llvm-svn: 11073
 2004-02-02 19:05:28 +00:00
Brian Gaeke
bc72431950 Add the JITInfo object, accessor & initializer. 
llvm-svn: 10972
 2004-01-23 06:39:30 +00:00
Brian Gaeke
2757ec5b94 Add CodeEmitter and JITInfo stubs. Dump the old 
PowerPCTargetMachine::addPassesToJITCompile() method, in favor of the
TargetJITInfo interface.

llvm-svn: 10971
 2004-01-23 06:35:43 +00:00
Brian Gaeke
764f1b476a Import of skeletal PowerPC backend I have had laying around for months... 
llvm-svn: 10937
 2004-01-21 21:13:19 +00:00