Commit Graph

7642 Commits

Author SHA1 Message Date
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
Nate Begeman
b7a8f2cdaa Convert remaining X-Form and Pseudo instructions over to asm writer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16142 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-02 08:13:00 +00:00
Brian Gaeke
74dfcf1200 Back to compiling land for v8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16138 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-02 02:37:43 +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
Reid Spencer
15fd439972 mkdtemp doesn't exist on Cygwin. Use tempnam & mkdir instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16133 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-01 20:29:35 +00:00
Reid Spencer
e1cc150a8e Make CommandLine prefix error output with the name of the program.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16129 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-01 04:41:28 +00:00
Reid Spencer
0132bd4dc1 Add support for FreeBSD
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16127 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-31 18:09:35 +00:00
Reid Spencer
a11e4dbef5 Add support for Interix and FreeBSD
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16126 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-31 18:03:23 +00:00
Reid Spencer
ef6efabd6d Actually define PreventCoreFiles in the sys namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16125 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-31 17:53:41 +00:00
Reid Spencer
387e5ec502 Add a new abstraction, SysConfig for platform independent system
configuration calls. Right now this just contains PreventCoreFiles so that
bugpoint can by platform independent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16124 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-31 17:43:29 +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
cc8bd9ca7c convert M and MD form instructions to generated asm writer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16121 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-31 02:28:08 +00:00
Reid Spencer
f634f46350 Move the GetTemporaryDirectory function from "generic Unix" to platform
specific.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16119 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-30 21:46:55 +00:00
Reid Spencer
b60bf6171d Add inclusion of assert.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16118 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-30 16:03:54 +00:00
Nate Begeman
07aada8b0f Move yet more instructions over to being printed by the generated asm writer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16112 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-30 02:28:06 +00:00
Reid Spencer
d8f4c8eff9 Abbreviate the long descriptions which are now in docs/SystemLibrary.html.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16111 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-30 02:03:51 +00:00
Reid Spencer
fc989e1ee0 Reduce the number of arguments in the instruction builder and make some
improvements on instruction selection that account for register and frame
index bases.

Patch contributed by Jeff Cohen. Thanks Jeff!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16110 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-30 00:13:26 +00:00
Nate Begeman
6b3dc55ef8 Convert A-Form instructions to auto-generated asm writer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16107 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 22:45:13 +00:00
Nate Begeman
27bc7c6cae Register sizes should be specified in bits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16106 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 22:03:40 +00:00
Nate Begeman
d332fd54f5 Improvements to int->float cast code for PPC-64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16105 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 22:02:43 +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
Reid Spencer
c0854bfcfc Add a declaration of environ global for Darwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16100 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 20:10:07 +00:00
Reid Spencer
1390103887 Add an assert to cature null Operands. It is better to catch it here than
to SIGSEGV in the bowels of isa<...> later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16098 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 19:37:59 +00:00
Reid Spencer
57ec727933 Signals support has been moved to lib/System
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16097 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 19:36:34 +00:00
Reid Spencer
bd4dd5c33a Move a warning comment to where it should have been in the first place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16088 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 19:25:54 +00:00
Reid Spencer
36853b99a1 Correct the vim: specification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16087 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 19:24:53 +00:00
Reid Spencer
c3de952426 Include some additional header files.
Fix the banner length.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16086 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 19:24:20 +00:00
Reid Spencer
496c277a6d Initial platform independent implementation of operating system concept
of "Signals" (cleanup after fatal errors).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16085 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 19:22:48 +00:00
Reid Spencer
52a7efafba Initial commit of an platform-indepdendent implementation for the
"Program" operating system concept (find and execute programs).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16084 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 19:20:41 +00:00
Nate Begeman
f2f0781a10 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16081 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 08:19:32 +00:00
Reid Spencer
8e66595512 Revise the design of the Path concept per peer review. Too many changes to
note individually but these essence of it is to not derive from
std::string, clarify the interface, and provide better documentation.
There is now also (untested) implementations for AIX, Darwin, and SunOS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16078 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 05:24:01 +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
Reid Spencer
488d73a8b7 Correctly compute the number of compaction tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16064 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-27 00:43:51 +00:00
Reid Spencer
0033c18c47 Prevent an empty compaction table from being written to the bytecode file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16063 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-27 00:38:44 +00:00
Reid Spencer
07ea1917d0 Add the CompactionTableIsEmpty function so that we can determine if a
CompactionTable really needs to be emitted. This is not a straight forward
computation, hence the need for a member function here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16062 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-26 22:32:00 +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
Alkis Evlogimenos
bb4bdf4fe4 Add getAllocatableSet() function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16059 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-26 22:21:04 +00:00
Reid Spencer
bf3a4d2e1b Fix a typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16055 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-26 07:43:33 +00:00
Reid Spencer
5179f05080 First cut at a README for lib/System explaining the #inclusion rules and
design criteria.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16054 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-26 07:41:41 +00:00
Reid Spencer
2f88a0655f Add a README explaining the intended content of this directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16053 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-26 05:58:20 +00:00