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134 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
7739cad69d Add a new kind of MachineOperand: MO_RegisterMask. 
Register masks will be used as a compact representation of large clobber
lists.  Currently, an x86 call instruction has some 40 operands
representing call-clobbered registers.  That's more than 1kB of useless
operands per call site.

A register mask operand references a bit mask of call-preserved
registers, everything else is clobbered.  The bit mask will typically
come from TargetRegisterInfo::getCallPreservedMask().

By abandoning ImplicitDefs for call-clobbered registers, it also becomes
possible to share call instruction descriptions between calling
conventions, and we can get rid of the WINCALL* instructions.

This patch introduces the new operand kind.  Future patches will add
RegMask support to target-independent passes before finally the fixed
clobber lists can be removed from call instruction descriptions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148250 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-16 19:22:00 +00:00
Joe Abbey
a0c1fc3bd3 Adding a Hexagon cell for segmented stacks, as they have been implemented for X86 and not Sparc... 
Committed as obvious


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148237 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-16 13:16:05 +00:00
Evan Cheng
2e9c7244b9 Add high level description of MachineInstr bundles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146589 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 21:32:14 +00:00
Tony Linthicum
b4b54153ad Hexagon backend support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146412 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-12 21:14:40 +00:00
Anshuman Dasgupta
6805b56e77 Add documentation for machine-independent DFA packetizer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145988 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-06 23:12:42 +00:00
Rafael Espindola
dda8c6ff9e grammar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145423 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-29 19:38:09 +00:00
Rafael Espindola
30c5fa2499 Fix spelling/grammar errors found by Duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145250 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-28 17:06:58 +00:00
Rafael Espindola
70d2b17d52 Add a description of the status of segmented stacks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145201 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-27 22:05:46 +00:00
NAKAMURA Takumi
4b2e07aa58 docs/*.html: Fix markups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143349 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-31 13:04:26 +00:00
Dan Gohman
33ba8b0e96 Remove the Alpha backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143164 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-27 22:56:32 +00:00
Bruno Cardoso Lopes
9d9c4ad186 According to Mips folks, the backend is now generally reliable (they can 
compile and use a bunch of stuff using o32 abi). Also the rt-rk.com team
claims that the JIT support they contributed, is complete for the mips
"static" relocation model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142950 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-25 20:09:31 +00:00
Dan Gohman
3e6157de57 Remove the Blackfin backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142880 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-25 00:05:42 +00:00
Dan Gohman
29074ccf6c Remove the SystemZ backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142878 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-24 23:48:32 +00:00
Jakob Stoklund Olesen
f22e6722a1 X86 has asterisk-free inline asm support now. 
Floating point stack inline asm works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140033 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-19 18:15:46 +00:00
Justin Holewinski
dceb002f82 PTX: Add basic documentation to CodeGenerator.html 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137315 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 17:34:16 +00:00
Roman Divacky
4d7ce32147 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136646 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-01 20:38:27 +00:00
Andrew Trick
5acaeb5121 Updating stale documentation on regalloc modes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136112 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-26 18:31:49 +00:00
Bill Wendling
75471d698f Describe the reasoning for compact unwind in better terms. Thanks to Nick Kledzik for the description. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136064 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-26 07:58:09 +00:00
Bill Wendling
3ef750d4b6 Fix some typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135956 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-25 20:25:03 +00:00
Bill Wendling
66bc5c602a An initial description of the compact unwind encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135955 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-25 20:19:48 +00:00
Chris Lattner
01ebd566fa document thiscall, PR9101 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 22:28:47 +00:00
Bill Wendling
3f58a513e1 Document the automatic alias printing of InstAliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130889 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-04 23:40:14 +00:00
NAKAMURA Takumi
f5af6ada3b docs: Introduce cascading style <div> and <p> continued on <h[2-5]>. 
<h2>Section Example</h2>
<div> <!-- h2+div is applied -->
<p>Section preamble.</p>

<h3>Subsection Example</h3>
<p> <!-- h3+p is applied -->
Subsection body
</p>

<!-- End of section body -->
</div>

FIXME: Care H5 better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130040 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-23 00:30:22 +00:00
NAKAMURA Takumi
05d0265fef docs: Use <Hn> as Heading elements instead of <DIV class="doc_foo">. 
H1 ... doc_title
H2 ... doc_section
H3 ... doc_subsection
H4 ... doc_subsubsection

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129736 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-18 23:59:50 +00:00
Jay Foad
d61895a4be Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129437 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-13 13:03:56 +00:00
NAKAMURA Takumi
b9a33634cc docs: Canonicalize URLs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129181 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-09 02:13:37 +00:00
Jay Foad
cb88ec34f0 Trivial typo fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128996 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-06 07:55:30 +00:00
Chris Lattner
49123fd58c Finish up the first draft of the release notes. 
improvements are welcome, please commit any changes directly to SVN.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128992 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-06 06:29:50 +00:00
Jakob Stoklund Olesen
3ca2102c72 Don't document exactly how virtual registers are represented as integers. Code 
shouldn't depend directly on that.

Give an example of how to iterate over all virtual registers in a function
without depending on the representation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123099 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-08 23:10:59 +00:00
Wesley Peck
d5fe3efde3 Update the target feature matrix to reflect some new features in the MBlaze backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122276 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 21:54:50 +00:00
Bruno Cardoso Lopes
48461f6da3 Update the Target Feature Matrix for Mips 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122203 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 22:41:43 +00:00
Chris Lattner
4c247f6f3b further fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121657 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 00:17:12 +00:00
Chris Lattner
7138863603 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121620 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-12 02:42:57 +00:00
Chris Lattner
ac3031aa09 no alpha jit support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119052 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:25:50 +00:00
Chris Lattner
90fd797dc7 add (and document) the ability for alias results to have 
fixed physical registers.  Start moving fp comparison
aliases to the .td file (which default to using %st1 if
nothing is specified).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118352 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-06 19:57:21 +00:00
Chris Lattner
98c870f87b generalize alias support to allow the result of an alias to 
add fixed immediate values.  Move the aad and aam aliases to
use this, and document it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-06 19:25:43 +00:00
Chris Lattner
c7a03fbe66 document instalias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118335 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-06 08:30:26 +00:00
Benjamin Kramer
943beeb747 Validate HTML. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117847 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-30 21:07:28 +00:00
Chris Lattner
50e5972dc6 add missing tag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117846 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-30 20:21:00 +00:00
Chris Lattner
8cf8bcc40c fix typos and some serious bugs in feature handling (but not for 
cases that are currently exercised).  Thanks to Frits van Bommel for
the great review!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117840 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-30 19:47:49 +00:00
Chris Lattner
693173feef Implement (and document!) support for MnemonicAlias's to have Requires 
directives, allowing things like this:

def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;

Move the rest of the X86 MnemonicAliases over to the .td file.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117830 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-30 19:23:13 +00:00
Chris Lattner
674c1dcca2 implement (and document!) the first kind of MC assembler alias, which 
just remaps one mnemonic to another.  Convert a few of the X86 aliases
from .cpp to .td code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117815 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-30 17:36:36 +00:00
Chris Lattner
219ddf5626 clarify that not having the ".o file writing" feature 
doesn't mean that you can't get a .o file.  Apparently
this is confusing :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 02:22:02 +00:00
Kalle Raiskila
94cc4feeaf Update target feature matrix for CellSPU 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117255 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 08:57:30 +00:00
Jakob Stoklund Olesen
4e13612ea7 Update target feature matrix for Blackfin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-24 20:04:05 +00:00
Wesley Peck
c6a4524717 Updating target feature matrix to indicate current MBlaze status. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117244 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-24 18:50:12 +00:00
Chris Lattner
6fb99559e4 broken link 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117232 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-24 16:24:22 +00:00
Chris Lattner
68de602ff6 add a big table with target features. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117230 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-24 16:18:00 +00:00
Chris Lattner
22481f2ea1 random cruft in my tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114387 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 04:03:39 +00:00
Chris Lattner
e1b834515b add some documentation for the most important MC-level classes along with 
an overview of mc and the idea of the code emission phase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113707 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-11 23:02:10 +00:00