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Commit Graph

2997 Commits

Author SHA1 Message Date
Nate Begeman
8d60ca616f Fix i64 returns
Generate PowerPC 'subfic' instruction when appropriate

llvm-svn: 20995
2005-04-02 00:42:16 +00:00
Chris Lattner
67da3fdb70 Add support for ISD::UNDEF to the X86 be
llvm-svn: 20990
2005-04-01 22:46:45 +00:00
Nate Begeman
4034852ba9 Add ISD::UNDEF node
Teach the SelectionDAG code how to expand and promote it
Have PPC32 LowerCallTo generate ISD::UNDEF for int arg regs used up by fp
  arguments, but not shadowing their value.  This allows us to do the right
  thing with both fixed and vararg floating point arguments.

llvm-svn: 20988
2005-04-01 22:34:39 +00:00
Chris Lattner
375f5e6ed5 Fix another PATypeHolder error, contributed by Bill Wendling!
llvm-svn: 20983
2005-04-01 15:41:30 +00:00
Duraid Madina
48ef32d6d3 repair mindless SELECT waste.
llvm-svn: 20982
2005-04-01 10:35:00 +00:00
Nate Begeman
244b36582a Fix Olden/bh, CR0 was being set in the wrong order
LowerCallTo and ISD::CALL are going to need to be modified, regs are being
set in the wrong order.

llvm-svn: 20981
2005-04-01 08:57:43 +00:00
Nate Begeman
f3ead25b68 Also apply Chris's fix to FP select and SETCC
llvm-svn: 20979
2005-04-01 07:21:30 +00:00
Chris Lattner
0cd0036523 Move the selection of the arms of the select operation up to the conditional
part to make sure we get the side effects and to avoid confusing the CFG.

llvm-svn: 20977
2005-04-01 07:10:02 +00:00
Nate Begeman
e82a2d7373 Fix stores to global addresses
Fix calls with no arguments

llvm-svn: 20975
2005-04-01 05:57:17 +00:00
Nate Begeman
9d224ae29b Support indexed loads and stores. This drops Shootout/matrix time from
18.8 to 14.8 seconds.  The Pattern ISel is now often faster than the
Simple ISel, esp. on memory intensive code.

llvm-svn: 20973
2005-04-01 04:45:11 +00:00
Nate Begeman
af7c6366d7 Implement FP_TO_SINT and FP_TO_UINT
llvm-svn: 20972
2005-04-01 02:59:27 +00:00
Nate Begeman
552f6f5f4e Add support for adding 0.0 and -0.0 to the constant pool, since we lie and
say that we support them, for the purposes of generating fsel instructions.

llvm-svn: 20970
2005-04-01 01:08:07 +00:00
Nate Begeman
18b3394f4d Factor out common code, support FP comparison in folded SetCC
llvm-svn: 20969
2005-04-01 00:32:34 +00:00
Nate Begeman
fc89059914 fsel generation for f32 and f64 select
generate compare immediate for integer compare with constant
fold setcc into branch
fold setcc into select

Code generation quality for Shootout is now on par with the Simple ISel

llvm-svn: 20968
2005-03-31 23:55:40 +00:00
Andrew Lenharth
1ba016ab6f make fp div trick dependend on flag
llvm-svn: 20967
2005-03-31 22:02:25 +00:00
Andrew Lenharth
7db3834ecf PCMarker support for DAG and Alpha
llvm-svn: 20965
2005-03-31 21:24:06 +00:00
Duraid Madina
47fed18416 Assorted fixes:
* Stop being pessimistic about output register allocation
  * Start to handle function descriptors: compute target GPs and so on
  when doing indirect calls etc. Not there yet, though. For the moment,
  we try to use _indirect_ branches wherever possible, to stress test
  function descriptors.
  * FP divide-by-zero should work now
  * add varargs (it doesn't work, though)

At this point, all of SingleSource passes (modulo C++ tests that are due
to issues with the CFE, see note in the README.) Much of MultiSource also
passes although there's still a ton of bugs around. Something for me to
work on tomorrow, then. :)

llvm-svn: 20960
2005-03-31 12:31:11 +00:00
Duraid Madina
f2d1865c74 * declare local common symbols as such (.lcomm, not merely .common)
* begin great adventure into correct function descriptor materialization

llvm-svn: 20956
2005-03-31 07:40:24 +00:00
Duraid Madina
03efd3bea9 daintyness
llvm-svn: 20955
2005-03-31 07:36:43 +00:00
Duraid Madina
11ff0a2a5f add what we need to fudge a 'floating point conditional move', this is
used to get FP div-by-zero working properly (shunt the right answer
depending on how frcpa sets its predicate output)

llvm-svn: 20954
2005-03-31 07:32:32 +00:00
Nate Begeman
17ff2b3a87 Pass the correct values to the chain argument for node construction during
LowerCallTo.
Handle ISD::ADD in SelectAddr, allowing us to have nonzero immediates for
loads and stores, amazing!

llvm-svn: 20946
2005-03-31 02:05:53 +00:00
Nate Begeman
de4aac1374 Rewrite LowerCallTo and Select(ISD::CALL) to properly handle float varargs
Tell the SelectionDAG ISel to expand SEXTLOAD of i1 and i8, rather than
  complicate the code in ISD::SEXTLOAD to do it by hand
Combine the FP and Int ISD::LOAD codegen
Generate better code for constant pool loads

As a result, all of Shootout, and likely many other programs are now
working.

llvm-svn: 20945
2005-03-31 00:15:26 +00:00
Nate Begeman
9c5480beeb Fix calls whose arguments fit entirely in registers to not break the Chain.
Implement SINT_TO_FP and UINT_TO_FP
Remove some dead code from the simple ISel

llvm-svn: 20944
2005-03-30 19:38:35 +00:00
Andrew Lenharth
91bd9033c6 yea, fine Duraid
llvm-svn: 20942
2005-03-30 18:22:52 +00:00
Nate Begeman
c877844625 Fix frame index code to generate legal PowerPC instructions. About half of
Shootout now works.

llvm-svn: 20940
2005-03-30 02:23:08 +00:00
Nate Begeman
ec87399dac Fix external symbol printing in the AsmPrinter. Tell the ISel that we
don't support things like memcpy directly.  This allows a handful of the
Shootout programs to work, yay!

llvm-svn: 20939
2005-03-30 01:45:43 +00:00
Chris Lattner
46c4246df1 don't depend on the cfg being set up yet
llvm-svn: 20936
2005-03-30 01:10:00 +00:00
Nate Begeman
8eddad3985 Fix BranchCC (it's still dumb), and implement FP select (also dumb)
llvm-svn: 20935
2005-03-29 22:48:55 +00:00
Nate Begeman
43b127ca0a Implement integer select and i1 sign extend
llvm-svn: 20934
2005-03-29 22:24:51 +00:00
Nate Begeman
d5d90ec76b Implement SetCC, fix ZERO_EXTEND_INREG
llvm-svn: 20933
2005-03-29 21:54:38 +00:00
Tanya Lattner
bc14e623e3 Compare dependence analysis with llvm instructions versus machine instrutions. the problem with using machine instructions and alias analysis is that aa does not handle tmp instructions.
llvm-svn: 20931
2005-03-29 20:35:10 +00:00
Tanya Lattner
7edde71619 Dependence analyzer that just determines dependences within a loop for loads and stores using alias analysis.
llvm-svn: 20930
2005-03-29 20:33:42 +00:00
Andrew Lenharth
21c4590f96 Fix up some types and constants
llvm-svn: 20928
2005-03-29 19:24:04 +00:00
Chris Lattner
3759d20b0f fix a warning in the optimized build
llvm-svn: 20920
2005-03-29 15:13:27 +00:00
Nate Begeman
62e458272f Implement div, rem, and frameindex
llvm-svn: 20907
2005-03-29 00:03:27 +00:00
Nate Begeman
734a61f057 Pattern ISel: fix argument loading for i64s (thanks chris)
Simple  ISel: fix i64 subtract

llvm-svn: 20903
2005-03-28 23:08:54 +00:00
Nate Begeman
32d1caae6d Remove fake instruction 'subc' (mnemonic for subfc).
More pattern isel updates

llvm-svn: 20902
2005-03-28 22:28:37 +00:00
Nate Begeman
2ab66f55b6 Implement proper loads and zero-extends of all types
llvm-svn: 20897
2005-03-28 19:36:43 +00:00
Duraid Madina
7b5f67baf9 Emit .global @function and .global @object entries so the Intel ias
assembler may be used; identify LLVM output as such.

llvm-svn: 20892
2005-03-28 15:21:43 +00:00
Nate Begeman
6b0fbf811f Fix that pesky floats in integer regs problem by assigning the f32 type to
the correct register class.  Also remove the loading of float data into int
regs part of varargs; it will need to be implemented differently later.

llvm-svn: 20857
2005-03-26 08:25:22 +00:00
Nate Begeman
31d175d1e5 Get closer to having varargs working. There's still something strange
going on with copies between floating point and integer register files
being generated.  Once that is solved, varargs will be done.

llvm-svn: 20856
2005-03-26 07:46:36 +00:00
Nate Begeman
69742e6ea1 Make 64bit args and float args work correct with calls. Thanks to Chris
for explaining EXTRACT_ELEMENT to me.

llvm-svn: 20847
2005-03-26 02:17:46 +00:00
Nate Begeman
f821401825 Change interface to LowerCallTo to take a boolean isVarArg argument.
llvm-svn: 20842
2005-03-26 01:29:23 +00:00
Nate Begeman
d3b5925b38 Next round of pattern isel changes, mostly dealing with calls.
llvm-svn: 20841
2005-03-26 01:28:53 +00:00
Nate Begeman
4106e81966 Correct a documention link
llvm-svn: 20840
2005-03-26 01:28:05 +00:00
Nate Begeman
ba1cd37734 Support global addresses and fix call returns. Varargs still aren't
handled correctly for floating point arguments, or more than 8 arguemnts.
This does however, allow hello world to run.

llvm-svn: 20832
2005-03-25 08:34:25 +00:00
Nate Begeman
6b11098886 Implement next round of Pattern ISel fixes
1. void returns
2. multiplies
3. calls

llvm-svn: 20822
2005-03-24 23:35:30 +00:00
Nate Begeman
613e54d5f0 Fix an incorrect argument being passed to BuildMI for indirect calls.
llvm-svn: 20821
2005-03-24 23:34:38 +00:00
Nate Begeman
4584ca0554 Commit Gabor Greif's patch to use iterators in lowering intrinsics.
llvm-svn: 20816
2005-03-24 20:07:16 +00:00
Chris Lattner
ad07b1bc54 eliminate dead variables, patch contributed by Gabor Greif!
llvm-svn: 20812
2005-03-24 17:32:20 +00:00
Nate Begeman
833c1d0994 Implement more of the PPC32 Pattern ISel:
1) dynamic stack alloc
2) loads
3) shifts
4) subtract
5) immediate form of add, and, or, xor
6) change flag from -pattern-isel to -enable-ppc-pattern-isel

Remove dead arguments from getGlobalBaseReg in the simple ISel

llvm-svn: 20810
2005-03-24 06:28:42 +00:00
Chris Lattner
a42c4a0874 Fix silly "no newline at end of file" warning
llvm-svn: 20809
2005-03-24 06:16:18 +00:00
Chris Lattner
56f3525a1d Fix compilation errors, patch contributed by the fabulous Bill Wendling!
llvm-svn: 20808
2005-03-24 05:13:53 +00:00
Chris Lattner
2e2035aa72 fix a compilation error, patch contributed by Bill Wendling!
llvm-svn: 20807
2005-03-24 05:12:48 +00:00
Nate Begeman
0e77845b7e Addition of the PPC32 Pattern ISel. While it is far from complete, it will
be brought up to parity with the current simple ISel in the coming days.
Currently, -pattern-isel is required to trigger it.

llvm-svn: 20805
2005-03-24 04:41:43 +00:00
Nate Begeman
175a9f1cc6 Remove comments that are now meaningless from the pattern ISels, at Chris's
request.

llvm-svn: 20804
2005-03-24 04:39:54 +00:00
Andrew Lenharth
b1bd2e2900 don't lie to the register allocator
llvm-svn: 20784
2005-03-23 15:20:01 +00:00
Tanya Lattner
d7b8fb8263 Added alias analysis.
Fixed many many bugs.
This now works on almost all Singlesource , and most of MultiSource.

llvm-svn: 20780
2005-03-23 01:47:20 +00:00
Andrew Lenharth
61312ca088 hum, it is good to use real instructions
llvm-svn: 20769
2005-03-22 16:42:52 +00:00
Andrew Lenharth
5bd65ee784 two things: 1)evilness reduction patch, reduces the number of instructions hiding in the small jump CC moving code. 2)implement div of small data types by FP DIV (also reduces evilness and should speed things up)
llvm-svn: 20756
2005-03-22 00:24:07 +00:00
Misha Brukman
04d6d0666d We may be adding functions to the Module during initialization, so
conservatively, it's modified

llvm-svn: 20735
2005-03-21 19:22:14 +00:00
Tanya Lattner
156e5a6897 Make this method non-const. Making it const causes the const version of
getIGroup to be called instead of the non-const one.  These two methods
have (??) different behavior, so this change fixes bugs.

llvm-svn: 20724
2005-03-21 06:07:43 +00:00
Chris Lattner
f53c9e2578 Fix the 3 regressions last night, due to my buggy patch from yesterday.
llvm-svn: 20689
2005-03-19 17:35:11 +00:00
Alkis Evlogimenos
d8f23f17f0 Stop using deprecated interface.
llvm-svn: 20679
2005-03-19 09:22:17 +00:00
Chris Lattner
35084f46a3 remove use of getPrev() and getNext() on ilist nodes.
llvm-svn: 20673
2005-03-18 16:12:37 +00:00
Duraid Madina
ad26d89f4a typo/denial
llvm-svn: 20663
2005-03-17 20:23:27 +00:00
Duraid Madina
341917d75b clean up warnings when building in release mode
llvm-svn: 20658
2005-03-17 19:00:40 +00:00
Duraid Madina
0b84eec44b OK, IA64 is statically linked into llc
llvm-svn: 20655
2005-03-17 18:37:05 +00:00
Duraid Madina
08bd58412a build the IA64 target as a .so for now
llvm-svn: 20654
2005-03-17 18:29:04 +00:00
Duraid Madina
79022e1b87 and so it begins...
PHASE 1: write instruction selector
PHASE 2: ???
PHASE 3: profit!

llvm-svn: 20652
2005-03-17 18:17:03 +00:00
Chris Lattner
79ba9d58fd Don't emit two comparisons when comparing a FP value against zero!
llvm-svn: 20651
2005-03-17 16:29:26 +00:00
Chris Lattner
c9a3ea81bf Fix the missing symbols problem Bill was hitting. Patch contributed by
Bill Wendling!!

llvm-svn: 20649
2005-03-17 15:38:16 +00:00
Andrew Lenharth
fbcfef1558 sure, I can set a flag, but if I never check it, why bother setting it? Should fix 20 programs :)
llvm-svn: 20623
2005-03-15 19:51:19 +00:00
Chris Lattner
7a9186cb47 stop using arg_front
llvm-svn: 20599
2005-03-15 05:03:36 +00:00
Chris Lattner
33f53a1f4f stop using arg_back
llvm-svn: 20598
2005-03-15 04:59:17 +00:00
Chris Lattner
4b688a1c70 This mega patch converts us from using Function::a{iterator|begin|end} to
using Function::arg_{iterator|begin|end}.  Likewise Module::g* -> Module::global_*.

This patch is contributed by Gabor Greif, thanks!

llvm-svn: 20597
2005-03-15 04:54:21 +00:00
Andrew Lenharth
e367587fbb FP 0.0 setcc optimization, and generate short branch sequence for setcc(FP) rather than stack usage
llvm-svn: 20589
2005-03-14 19:23:45 +00:00
Chris Lattner
112de16cf5 add a StructLayout::getElementContainingOffset method.
llvm-svn: 20579
2005-03-13 19:04:41 +00:00
Andrew Lenharth
abe4fd6c68 Should fix mesa
llvm-svn: 20577
2005-03-13 00:43:20 +00:00
Andrew Lenharth
d289be2b54 remove a pseudo instruction and improve inline constant generation
llvm-svn: 20563
2005-03-11 17:48:05 +00:00
Andrew Lenharth
1060a5028d some typoes and .bss isn't liked, at all
llvm-svn: 20542
2005-03-10 19:02:02 +00:00
Andrew Lenharth
65ef5bced7 minor correction for Register that isn't used
llvm-svn: 20535
2005-03-09 20:48:23 +00:00
Chris Lattner
496d623600 Fix a crash handling 'undef bool', fixing an llc crash on 186.crafty
llvm-svn: 20523
2005-03-08 22:53:09 +00:00
Reid Spencer
b0ca4aa8cd Patch to make assembly output compatible with mingw compilation (identical
to cygwin)

llvm-svn: 20520
2005-03-08 17:02:05 +00:00
Chris Lattner
667186f10f Make sure to remove all dead type names from the symbol table, not just
struct types.  This fixes Regression/CodeGen/CBackend/2005-03-08-RecursiveTypeCrash.ll,
a crash on Java output that Alkis reported.

llvm-svn: 20519
2005-03-08 16:19:59 +00:00
Misha Brukman
e29de97ab7 Single characters should be printed out as chars, not strings.
llvm-svn: 20515
2005-03-08 00:26:08 +00:00
Chris Lattner
a518cf568a simplify some code.
llvm-svn: 20471
2005-03-06 02:28:23 +00:00
Chris Lattner
f70d80d026 don't break the build on 32-bit hosts.
llvm-svn: 20455
2005-03-05 17:47:38 +00:00
Andrew Lenharth
ee4072f980 fix data size stuff for architectures with bit challenged data types
llvm-svn: 20453
2005-03-05 15:30:33 +00:00
Andrew Lenharth
ad4380f06e fix up stack pointer adjustments
llvm-svn: 20442
2005-03-04 21:40:02 +00:00
Andrew Lenharth
458e6bcf28 fix FCMOVxx typo, set rem and div to hardcode target reg to be the same as the one the assembler uese, update ISel to put values in regs used by assembler for rem and div
llvm-svn: 20434
2005-03-04 20:09:23 +00:00
Andrew Lenharth
e831777542 turn on IEEE for compares
llvm-svn: 20425
2005-03-03 22:12:11 +00:00
Andrew Lenharth
e6dbf989b3 beter Select on FP
llvm-svn: 20424
2005-03-03 21:47:53 +00:00
Chris Lattner
4439f1686f Print -X like this:
double test(double l1_X) {
  return (-l1_X);
}

instead of like this:

double test(double l1_X) {
  return (-0x0p+0 - l1_X);
}

llvm-svn: 20423
2005-03-03 21:12:04 +00:00
Andrew Lenharth
b5ddbc074d LSR cleanup patch
llvm-svn: 20422
2005-03-03 19:03:21 +00:00
Chris Lattner
8074739aa2 Do not lower malloc's to pass "sizeof" expressions like this:
ltmp_0_7 = malloc(((unsigned )(&(((signed char (*)[784])/*NULL*/0)[1u]))));

Instead, just emit the literal constant, like this:

  ltmp_0_7 = malloc(784u);

This works around a bug in ICC 8.1 compiling the CBE generated code.  :-(

llvm-svn: 20415
2005-03-03 01:04:50 +00:00
Chris Lattner
b205d87afe cleanup the cfg after lsr
llvm-svn: 20410
2005-03-02 21:56:00 +00:00
Andrew Lenharth
1e213c7924 remove 32 sign extend after 32 sextload and handle small negative constant
llvm-svn: 20408
2005-03-02 17:23:03 +00:00
Andrew Lenharth
8fc5ba2e06 Added LSR as a beta pass for alpha
llvm-svn: 20407
2005-03-02 17:21:38 +00:00
Chris Lattner
798b18474c Add a temporary option for llc-beta: -enable-lsr-for-ppc, which turns on
Loop Strength Reduction.

llvm-svn: 20399
2005-03-02 06:19:22 +00:00