Commit Graph

22 Commits

Author SHA1 Message Date
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
Eric Christopher
a2c9188560 Split out register class subclassing to a separate function and clean up
accordingly.  No functional change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25 00:41:18 +00:00
Jakob Stoklund Olesen
09bc029865 Replace the tablegen RegisterClass field SubRegClassList with an alist-like data
structure that represents a mapping without any dependencies on SubRegIndex
numbering.

This brings us closer to being able to remove the explicit SubRegIndex
numbering, and it is now possible to specify any mapping without inventing
*_INVALID register classes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-24 21:46:58 +00:00
Owen Anderson
825b72b057 Split EVT into MVT and EVT, the former representing _just_ a primitive type, while
the latter is capable of representing either a primitive or an extended type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78713 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 20:47:22 +00:00
Owen Anderson
e50ed30282 Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10 22:56:29 +00:00
Duncan Sands
83ec4b6711 Wrap MVT::ValueType in a struct to get type safety
and better control the abstraction.  Rename the type
to MVT.  To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits().  Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52044 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 12:08:01 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:08:44 +00:00
Chris Lattner
3060910e29 remove attributions from utils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45419 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:37:13 +00:00
Evan Cheng
a3ca3149f2 Add CopyCost to TargetRegisterClass. This specifies the cost of copying a value
between two registers in the specific class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42123 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-19 01:35:01 +00:00
Dan Gohman
cb648f90a2 Remove spurious consts. This fixes warnings with compilers that
are strict about such things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41956 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-14 20:08:19 +00:00
Christopher Lamb
a321125e8b Add support to tablegen for specifying subregister classes on a per register class basis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37572 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-13 22:20:15 +00:00
Nate Begeman
b73628b5ab Add support for generating v4i32 altivec code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25046 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-30 00:12:56 +00:00
Chris Lattner
5c4736a3da Add some methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24596 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-05 02:35:08 +00:00
Nate Begeman
6510b22cec Support multiple ValueTypes per RegisterClass, needed for upcoming vector
work.  This change has no effect on generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24563 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-01 04:51:06 +00:00
Chris Lattner
e9f4ba8dd4 Compute the value types that are natively supported by a target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23282 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 21:43:21 +00:00
Chris Lattner
ac46893e24 Split register class "Methods" into MethodProtos and MethodBodies
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22928 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 19:12:51 +00:00
Chris Lattner
c67c18fd23 Read the namespace field from register classes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22918 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 18:45:20 +00:00
Misha Brukman
3da94aec4d Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21428 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-22 00:00:37 +00:00
Chris Lattner
5767775505 Support "Methods" in register classes in CodgeGenRegisterClass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15965 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-21 19:21:21 +00:00
Chris Lattner
056afeface Start parsing register classes into a more structured form
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15961 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-21 04:05:00 +00:00
Chris Lattner
7a680c6064 Read in declared reg sizes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15960 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-21 02:24:57 +00:00
Chris Lattner
8dab6ca9c6 Add initial support for register and register class representation.
Obviously this is not done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15804 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-16 01:09:52 +00:00