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1296 Commits

Author SHA1 Message Date
Chris Lattner
cbb5625cec * Improve comments/documentation substantially 
* Eliminate the releaseMemory method, this is not an analysis
* Change the fixed, active, and inactive lists of intervals to maintain an
  iterator for the current position in the interval.  This allows us to do
  constant time increments of the iterator instead of having to do a binary
  search to find our liverange in our liveinterval all of the time, which
  substantially speeds up cases where LiveIntervals have many LiveRanges
  - which is very common for physical registers.  On targets with many
  physregs, this can make a noticable difference.

  With a release build of LLC for PPC, this halves the time in
  processInactiveIntervals and processActiveIntervals, from 1.5s to .75s.

  This also lays the ground for more to come.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17933 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-18 02:42:27 +00:00
Chris Lattner
743ef6d70e Add new advanceTo method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17932 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-18 02:37:31 +00:00
Chris Lattner
8d8d513d4d Fix a minor bug in expiredAt. endNumber() is the first number that is not valid. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17931 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-18 01:34:44 +00:00
Chris Lattner
23b71c1e1e Rename some methods, use 'begin' instead of 'start', add new LiveInterval 
iterator/begin/end members.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17930 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-18 01:29:39 +00:00
Brian Gaeke
8311befb69 Give a better message for a common assertion failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17887 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-16 06:52:35 +00:00
Chris Lattner
41ffe4b531 Do not make i have bigger scope that we need 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17483 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 04:47:37 +00:00
Reid Spencer
6cb21d443e Change Library Names Not To Conflict With Others When Installed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17286 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-27 23:18:45 +00:00
Chris Lattner
52c09d7656 Move method bodies that depend on <algorithm> from MBB.h to MBB.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17253 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-26 15:43:42 +00:00
Chris Lattner
27f291600b Clean up the MachineBasicBlock.h file, percolating #includes into this file. 
Patch contributed by Morten Ofstad


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17251 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-26 15:35:58 +00:00
Chris Lattner
ad3c74fc9b Reduce usage of MRegisterInfo::getRegClass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17238 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-26 05:29:18 +00:00
Chris Lattner
6fcd8d848d Do not use variable sized arrays in C++, they are non-portable. Patch 
contributed by Morten Ofstad


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17217 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-25 18:44:14 +00:00
Chris Lattner
7a36ae8b01 Patch to support MSVC better, contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17215 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-25 18:40:47 +00:00
Reid Spencer
cac731ecbe We won't use automake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17155 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-22 03:35:04 +00:00
Reid Spencer
86d341b204 Initial automake generated Makefile template 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17136 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-18 23:55:41 +00:00
Chris Lattner
bd1d382cc4 Add support for undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17055 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:19:26 +00:00
Chris Lattner
ca4f6ebefc Allow machine operands to represent global variables with offsets. This is 
useful when you have a reference like:

int A[100];

void foo() { A[10] = 1; }

In this case, &A[10] is a single constant and should be treated as such.

Only MO_GlobalAddress and MO_ExternalSymbol are allowed to use this field, no
other operand type is.

This is another fine patch contributed by Jeff Cohen!!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17007 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 04:38:41 +00:00
Chris Lattner
47eb6567e2 This patch fixes the nasty bug that caused 175.vpr to fail for X86 last night. 
The problem occurred when trying to reload this instruction:

MOV32mr %reg2326, 8, %reg2297, 4, %reg2295

The value of reg2326 was available in EBX, so it was reused from there, instead
of reloading it into EDX.

The value of reg2297 was available in EDX, so it was reused from there, instead
of reloading it into EDI.

The value of reg2295 was not available, so we tried reloading it into EBX, its
assigned register.  However, we checked and saw that we already reloaded
something into EBX, so we chose what reg2326 was assigned to (EDX) and reloaded
into that register instead.

Unfortunately EDX had already been used by reg2297, so reloading into EDX
clobbered the value used by the reg2326 operand, breaking the program.

The fix for this is to check that the newly picked register is ok.  In this
case we now find that EDX is already used and try using EDI, which succeeds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17006 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 03:19:31 +00:00
Chris Lattner
8df6a594d2 This patch adds and improves debugging output. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17005 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 03:16:29 +00:00
Reid Spencer
d96cb6eaa0 Update to reflect changes in Makefile rules. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16950 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-13 11:46:52 +00:00
Misha Brukman
de2a9432f9 ModuloScheduling has moved to lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16906 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 23:37:40 +00:00
Misha Brukman
f60a149df6 ModuloScheduling moved to lib/Target/SparcV9 as it is SparcV9-specific 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16902 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 23:33:20 +00:00
Tanya Lattner
420025b04f Added debug information. Fixed several bugs in the reconstruct loop function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16895 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 22:44:35 +00:00
Reid Spencer
01930c4891 Remove the InstrSched directory (moved to SparcV9) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16887 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 21:19:41 +00:00
Reid Spencer
d9a9925f87 Directory no long exists (moved to Targets/SparcV9). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16886 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 21:18:31 +00:00
Reid Spencer
9f41a5fe85 Initial version of automake Makefile.am file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16885 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 20:43:57 +00:00
Misha Brukman
6a134dedf6 Hyphenate target-(in)dependent for more tasty grammar goodness (tm) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16854 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-08 19:43:31 +00:00
Misha Brukman
6b68973617 InstrSched has been moved to lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16850 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-08 18:12:53 +00:00
Misha Brukman
c8e049124e InstrSched is SparcV9-specific and so has been moved to lib/Target/SparcV9/ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16849 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-08 18:12:14 +00:00
Misha Brukman
1481a5c4c7 Single-space instead of double-spacing in the Makefile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16845 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-08 18:05:25 +00:00
Chris Lattner
7cf3490892 Do not repeat the map lookup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16633 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-01 23:16:43 +00:00
Chris Lattner
bec6a9ea12 When a virtual register is folded into an instruction, keep track of whether 
it was a use, def, or both.  This allows us to be less pessimistic in our
analysis of them.  In practice, this doesn't make a big difference, but it
doesn't hurt either.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16632 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-01 23:15:36 +00:00
Chris Lattner
52b25db3ef Add a simple little improvement to the local spiller to keep track of stores 
and delete them if they turn out to be dead.  This is a useful little hack
that even speeds up some programs.  For example, it speeds up Ptrdist/ks
from 17.53s to 15.59s, and 188.ammp from 149s to 146s.

This also speeds up llc :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16630 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-01 19:47:12 +00:00
Chris Lattner
7fb64347d7 Substantially revamp the local spiller, causing it to actually improve the 
generated code over the simple spiller.  The new local spiller generates
substantially better code than the simple one in some cases, by reusing
values that are loaded out of stack slots and kept available in registers.

This primarily helps programs that are spilling a lot, and there is still
stuff that can be done to improve it.  This patch makes the local spiller
the default, as it's only a tiny bit slower than the simple spiller (it
increases the runtime of llc by < 1%).

Here are some numbers with speedups.

Program    #reuse  old(s)    new(s)  Speedup

Povray:     3452,  16.87 ->  15.93   (5.5%)
177.mesa:   2176,   2.77 ->   2.76   (0%)
179.art:      35,  28.43 ->  28.01   (1.5%)
183.equake:   55,  61.44 ->  61.41   (0%)
188.ammp:    869, 174    -> 149      (15%)

164.gzip:     43,  40.73 ->  40.71   (0%)
175.vpr:     351,  18.54 ->  17.34   (6.5%)
176.gcc:    2471,   5.01 ->   4.92   (1.8%)
181.mcf       42,  79.30 ->  75.20   (5.2%)
186.crafty:  484,  29.73 ->  30.04   (-1%)
197.parser:  251,  10.47 ->  10.67   (-1%)
252.eon:    1501,   1.98 ->   1.75   (12%)
253.perlbm: 1183,  14.83 ->  14.42   (2.8%)
254.gap:     825,   7.46 ->   7.29   (2.3%)
255.vortex:  285,  10.51 ->  10.27   (2.3%)
256.bzip2:    63,  55.70 ->  55.20   (0.9%)
300.twolf:   830,  21.63 ->  22.00   (-1%)

PtrDist/ks    14,  32.75 -> 17.53    (46.5%)
Olden/tsp     46,   8.71 ->  8.24    (5.4%)
Free/distray  70,   1.09 ->  0.99    (9.2%)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16629 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-01 19:04:51 +00:00
Chris Lattner
ef0543689f Pretty print a bit nicer :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16628 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-01 19:01:39 +00:00
Alkis Evlogimenos
c736b3a37a Document this class a bit :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16626 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-01 00:35:07 +00:00
Chris Lattner
dbea9731b1 Use more efficient map operations. Fix a bug that would affect hypothetical 
targets that supported multiple memory operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16614 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 16:35:08 +00:00
Chris Lattner
477e4555de There is no need to call MachineInstr::print directly, just send the MI& to an ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16613 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 16:10:45 +00:00
Chris Lattner
70ca358b7d * Wrap some comments to 80 cols 
* Add const_iterator stuff
* Add a print method, which means that I can now call dump() from the
  debugger.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16612 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 15:59:17 +00:00
Chris Lattner
0fc27ccdd3 Simplify the logic in the simple spiller and capitalize some variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16609 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 02:59:33 +00:00
Chris Lattner
5f7d2d45fd Switch from defaulting to the 'local' spiller to the 'simple' spiller. The 
two spillers produce perfectly identical code (at least on povray and eon),
but the simple spiller is substantially faster than the local spiller. Once
the local spiller is improved, we can switch back.

Switching cuts 5.2% off of the llc time for povray (about 1.3s).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16608 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 02:40:06 +00:00
Chris Lattner
4ea1b828eb Don't use a densemap for keeping track of which vregs are already loaded, just 
use a simple vector.  This speeds up -spiller=simple from taking 22s to taking
.1s on povray (debug build).  This change does not modify the generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16607 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 02:33:48 +00:00
Chris Lattner
7f690e6258 Use longer and more explicit names for instance vars (particularly important 
data structures).  Fix the print method to send to the right ostream, not
always cerr.  Delete typedefs that are only used once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16606 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 02:15:18 +00:00
Chris Lattner
510a3ea646 Free the VirtRegMap at the end of MachineFunction processing instead of at 
the beginning of processing the next one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16605 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 02:02:33 +00:00
Chris Lattner
8c4d88d369 Reindent code, improve comments, move huge nested methods out of classes, 
prune #includes, add print/dump methods, etc.  No functionality changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16604 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-30 01:54:45 +00:00
Alkis Evlogimenos
c72c617a4e Add includes and use std:: for standard library calls to make code 
compile on windows. This patch was contributed by Paolo Invernizzi.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16539 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-28 14:42:44 +00:00
Alkis Evlogimenos
c4d3b91816 Fix includes. Patch contributed by Paolo Invernizzi! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16533 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-28 02:38:58 +00:00
Alkis Evlogimenos
2c4f7b5faa Grow the map on entry so that we don't crash if joinIntervals never 
runs (if coalescing is disabled for example).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16259 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-09 19:24:38 +00:00
Alkis Evlogimenos
5d0d1e350a Use a DenseMap for mapping reg->reg. This improves the LiveInterval 
analysis running time from 2.7869secs to 2.5226secs on 176.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16244 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-08 03:01:50 +00:00
Alkis Evlogimenos
76d9dacceb Indent to 2 spaces and cleanup excess whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16188 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-05 18:41:35 +00:00
Alkis Evlogimenos
a63828619f Indent to 2 spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16187 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-05 18:39:20 +00:00
Misha Brukman
08a6c7614b Order #includes alphabetically, local .h files first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16153 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-03 18:25:53 +00:00
Alkis Evlogimenos
20aa474f8f Fixes to make LLVM compile with vc7.1. 
Patch contributed by Paolo Invernizzi!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16152 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-03 18:19:51 +00:00
Alkis Evlogimenos
70619fae28 Change the way we choose a free register: instead of picking the first 
free allocatable register, we prefer the a free one with the most uses
of inactive intervals.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16148 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-02 21:24:33 +00:00
Alkis Evlogimenos
84f5bcb013 Change the way we choose a free register: instead of picking the first 
free allocatable register, we prefer the a free one with the most uses
of inactive intervals. This causes less spills and performes a bit
better compared to gcc:

Program                 | GCC/LLC (Before)| GCC/LLC (After)
164.gzip/164.gzip       | 0.59            | 0.60
175.vpr/175.vpr         | 0.57            | 0.58
176.gcc/176.gcc         | 0.59            | 0.61
181.mcf/181.mcf         | 0.94            | 0.95
186.crafty/186.crafty   | 0.62            | 0.62
197.parser/197.parser   | 0.89            | 0.88
252.eon/252.eon         | 0.61            | 0.66
253.perlbmk/253.perlbmk | 0.79            | 0.84
254.gap/254.gap         | 0.81            | 0.81
255.vortex/255.vortex   | 0.92            | 0.93
256.bzip2/256.bzip2     | 0.69            | 0.69
300.twolf/300.twolf     | 0.91            | 0.90


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16147 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-02 21:23:32 +00:00
Alkis Evlogimenos
82b4955f96 We don't need to sort the added vector as unhandled intervals are 
stored in a binary heap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16143 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-02 18:00:38 +00:00
Reid Spencer
551ccae044 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/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:55:40 +00:00
Alkis Evlogimenos
ed543731fb Be a bit more efficient when processing the active and inactive 
lists. Instead of scanning the vector backwards, scan it forward and
swap each element we want to erase. Then at the end erase all removed
intervals at once. This doesn't save much: 0.08s out of 4s when
compiling 176.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16136 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:52:29 +00:00
Alkis Evlogimenos
2e58a41089 Give a better assertion if we see a use before a def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16135 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:34:52 +00:00
Alkis Evlogimenos
d19e2901c1 Minor code clarity changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16123 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-31 17:39:15 +00:00
Nate Begeman
81ab877a0c Put this change back in after testing from Reid proved its innocence. getSpillSize now returns value in bits 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16102 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-29 22:00:24 +00:00
Alkis Evlogimenos
81bc6e377e Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16077 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-28 22:43:31 +00:00
Alkis Evlogimenos
ca5d1c378c Now that LiveIntervals::addIntervalsForSpills is fixed, do not require 
LiveVariables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16076 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-27 19:00:29 +00:00
Alkis Evlogimenos
d8d26b3268 Only update LiveVariables if it is available. addIntervalsForSpills 
runs after the initial run of the live interval analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16075 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-27 18:59:22 +00:00
Alkis Evlogimenos
ccdf21af1f Back out this change as it broke the build last night. This should be 
investicated further as the linearscan variants don't really need
LiveVariables...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16074 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-27 18:01:21 +00:00
Nate Begeman
bd2efb9600 Back out change to divide getSpillSize by 8 until I figure out why it breaks x86, which has register sizes in bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16073 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-27 16:48:24 +00:00
Alkis Evlogimenos
3f06e68783 The linear scan variants do not require the LiveVariables analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16071 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-27 04:51:13 +00:00
Nate Begeman
5709998993 Register sizes are in bits, not bytes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16070 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-27 04:28:10 +00:00
Alkis Evlogimenos
22a2f6d5b0 Use newly added API in MRegisterInfo and don't expose the allocatable 
register set anymore. Its users now use the MRegisterInfo API.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16061 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-26 22:23:32 +00:00
Alkis Evlogimenos
5327801fb8 Use newly added API in MRegisterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16060 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-26 22:22:38 +00:00
Chris Lattner
d0d0a1a08f Fix a bug in a previous checkin of mine, correcting 
Regression.CodeGen.Generic.2004-04-09-SameValueCoalescing.llx and the
code size problem.

This bug prevented us from doing most register coallesces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16031 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-24 17:48:29 +00:00
Chris Lattner
7af2865fc6 Do not use .xword and friends to emit zeros on V9. Apparently there are issues 
with emitting .xwords when not on an 8-byte boundary (.xword 0 is not the
same as 8 .byte 0's).  Because we do not know when or when we are not aligned,
just emit bytes like the old V9 asmprinter did.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16006 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-24 00:26:11 +00:00
Chris Lattner
7008034c9f Register info alignment is in bits, frame object alignment is (currently) in 
bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15970 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-21 20:04:59 +00:00
Chris Lattner
fa1face30a Now that we have per-register spill size/alignment info, remove more uses 
of getRegClass


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15967 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-21 19:45:10 +00:00
Brian Gaeke
418379e229 Instead of using isDummyPhiInstr, we just compare the opcode with V9::PHI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15906 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-18 20:04:24 +00:00
Brian Gaeke
e058b27faf Instead of using isDummyPhiInstr, we just compare the opcode with V9::PHI. 
Also, squash a use of TargetInstrInfo::isNop().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15905 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-18 20:04:21 +00:00
Chris Lattner
f746a7d09b Rename var 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15897 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-18 02:22:55 +00:00
Chris Lattner
7d057a3fd5 Add support for targets without a .zero directive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15894 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 21:38:40 +00:00
Chris Lattner
bfddc2030a Add support for alignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15888 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 19:14:29 +00:00
Chris Lattner
0554fb6b9c Use a designated comment character when printing comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15880 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 16:27:05 +00:00
Chris Lattner
e85a5a9f40 Add support for targets that have .quad, drop extra tab inserted 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15870 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:48:16 +00:00
Chris Lattner
1b7e2356ac Implement emitGlobalConstant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15868 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:36:49 +00:00
Chris Lattner
af2bf0ab30 We now allow targets to use any prefix they want for global symbols. Lets 
hear it for ".".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15863 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:06:19 +00:00
Chris Lattner
ed1ff01639 Some asmwriters want an _ prefix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15845 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 02:28:26 +00:00
Chris Lattner
a80ba71efe Initial implementation of the asmprinter base class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15838 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 23:15:22 +00:00
Chris Lattner
ad8281607f Move this code to lib/Target/SparcV9/MachineFunctionInfo.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15834 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 22:36:34 +00:00
Chris Lattner
e7f372703a This file is moving to lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15833 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 22:36:10 +00:00
Chris Lattner
85015a0891 Move MachineCodeForInstruction.h and MachineFunctionInfo.h into lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15830 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 21:55:02 +00:00
Chris Lattner
753c16c9cb Nuke this file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15829 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 21:36:40 +00:00
Chris Lattner
e97db86e17 Fold MachineInstrAnnot.cpp into this file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15828 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 21:36:31 +00:00
Brian Gaeke
e6c3dc88ca Add a note that people shouldn't use MachineFunctionInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15823 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 18:27:24 +00:00
Chris Lattner
3bba026994 Reduce usage of MRegisterInfo::getRegClass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15784 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:23:09 +00:00
Chris Lattner
078fee3f2e The insertion method returns void now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15779 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:14:31 +00:00
Chris Lattner
3cc03be51a Nuke ifdef'd out code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15777 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:03:57 +00:00
Chris Lattner
26eb14ba51 Stop using CreateStackObject(RegClass*) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15775 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:02:22 +00:00
Chris Lattner
57f1b67c34 These methods no longer take a TargetRegisterClass* operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15774 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 21:56:44 +00:00
Alkis Evlogimenos
8c9b4de574 Make this compile on gc 3.4.1 (static_cast to non-const type was not 
allowed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15766 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 09:18:55 +00:00
Nate Begeman
5de0f7aa14 Elminiate MachineFunction& argument from eliminateFrameIndex 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15736 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-14 22:00:10 +00:00
Chris Lattner
c330b68fb7 Split saveCallerSavedRegisters into two methods for clarity, and add comments. 
Add support for targets that must spill certain physregs at certain locations.

Patch contributed by Nate Begeman, slightly hacked by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15701 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-12 19:01:14 +00:00
Chris Lattner
4f65fb38c6 Forward substitute some constants into their users 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15693 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-12 18:10:18 +00:00
Chris Lattner
3927af8d70 The only target that uses this code (v9) always has argsOnStackHaveFixedSize 
set to true (obviously)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15692 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-12 18:06:35 +00:00