Commit Graph

78 Commits

Author SHA1 Message Date
Nate Begeman 4bfceb1ed5 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 6173878304 Convert remaining X-Form and Pseudo instructions over to asm writer
llvm-svn: 16142
2004-09-02 08:13:00 +00:00
Reid Spencer 7c16caa336 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 4483df8b63 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 1c57b4fa32 Kill a majority of unnecessary sign extensions for byte loads
llvm-svn: 15991
2004-08-22 08:10:15 +00:00
Nate Begeman 45b0b7cd7c 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
Nate Begeman 1b1a784afa 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 75e987d0b8 This PHI has 4 additional operands, not 2.
llvm-svn: 15926
2004-08-19 21:00:12 +00:00
Nate Begeman d5c6380015 Convert casts that will have no effect into move instructions.
llvm-svn: 15914
2004-08-19 08:07:50 +00:00
Nate Begeman e4e6d92d1d 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
Nate Begeman 0818541631 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
Misha Brukman 116f9277f6 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
Nate Begeman 8b44a07246 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
Nate Begeman 373744c6dc 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
Nate Begeman caeb78e720 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 5bf9bfe398 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 420213f3c5 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 2f1d849271 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 f17ea0f7b7 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 6f0291792e Fix a case where constantexprs could leak into the PPC isel.
llvm-svn: 15661
2004-08-11 07:34:50 +00:00
Nate Begeman 7526da6ead Fix 255.vortex by using getClassB instead of getClass
llvm-svn: 15648
2004-08-11 03:30:55 +00:00
Misha Brukman d022a5ac5a 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 dad438bfb9 Renamed PPC32 (namespace for regs, opcodes) to PPC to include 64-bit targets
llvm-svn: 15631
2004-08-10 22:47:03 +00:00
Nate Begeman 63be70d8f2 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
Chris Lattner a8dcf2423e 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
Misha Brukman 862bb562cc Simplify loading (un)signed constants to registers, patch by Nate Begeman.
llvm-svn: 15306
2004-07-28 19:13:49 +00:00
Misha Brukman f7037385e2 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 5b092c15c6 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 640ec1e5e6 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 74e3a17958 * 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 c150bdb52e Eliminate spurious empty space; make code easier to page through.
llvm-svn: 15146
2004-07-23 22:35:49 +00:00
Misha Brukman 26a04b79cb Implement casting a floating point to 32-bit unsigned value
llvm-svn: 15143
2004-07-23 20:32:59 +00:00
Misha Brukman 7dba17d1ce * 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 db72025d1d * 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 333f58836c * 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 dbd14bc3e5 * 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 87e07f8596 * 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 072af37088 * 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 8e36261aa8 Treat external variables similarly to those with weak linkage: load indirect.
llvm-svn: 15047
2004-07-20 20:43:05 +00:00
Misha Brukman 684ef6ca20 * 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 5e744fa1a3 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 818a9dc317 * 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 6bdfbaf80d Fix infinite loop
llvm-svn: 14971
2004-07-18 18:45:01 +00:00
Chris Lattner aba6c47900 CPR Fixes
llvm-svn: 14961
2004-07-18 07:29:35 +00:00
Misha Brukman b85c2522fa * 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
Chris Lattner 7dc9de5f43 Patches towards fixing PR341
llvm-svn: 14841
2004-07-15 02:14:30 +00:00
Misha Brukman 2661c50173 Make sure MTSPR instruction is inserted into the BasicBlock
llvm-svn: 14822
2004-07-14 18:26:31 +00:00
Misha Brukman 5193410cd9 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 d4cbe67ce6 * 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 aa678b5ed4 * 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