Commit Graph

16 Commits

Author SHA1 Message Date
Sean Silva
b9a65fd002 [docs] Fix some links
The TableGen docs have changed structure

Patch by Tay Ray Chuan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205744 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-07 22:46:40 +00:00
Vincent Lejeune
d254d3111e Add a RequireStructuredCFG Field to TargetMachine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196634 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-07 01:49:19 +00:00
Ahmed Bougacha
d9ddaa4acb Docs: tweak code-block spacing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195049 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-18 22:26:59 +00:00
Ahmed Bougacha
b923d2f5f5 TableGen: Generate an enum for all named Operand types in tblgen'd InstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194978 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-17 21:24:41 +00:00
Ahmed Bougacha
0df7f51365 Docs: Clearly separate Operand-related paragraphs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194977 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-17 21:24:37 +00:00
Ahmed Bougacha
3bcf1e3bc0 Docs: Fix typo: NoIntinerary -> NoItinerary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-17 21:24:34 +00:00
Vincent Lejeune
d8f2eb301c TableGen: Enumerate Schedule Model too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189839 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-03 19:43:28 +00:00
Tom Stellard
5519dc9de8 Revert "TableGen: Enumerate Schedule Model too."
This reverts commit 2ca1e4a39c.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187525 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-31 20:43:08 +00:00
Vincent Lejeune
2ca1e4a39c TableGen: Enumerate Schedule Model too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187511 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-31 19:31:20 +00:00
Sean Silva
2f8a1769e4 [docs] Amend confusing title
"Writing an LLVM Compiler Backend" can be misinterpreted as meaning
"backend" in the sense of "using LLVM as a backend for your compiler for
your new language". This new name is less ambiguous.

As a bonus, this brings the title in line with the file name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185377 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-01 20:45:12 +00:00
Tom Stellard
898b9f020d TableGen: Generate a function for getting operand indices based on their defined names
This patch modifies TableGen to generate a function in
${TARGET}GenInstrInfo.inc called getNamedOperandIdx(), which can be used
to look up indices for operands based on their names.

In order to activate this feature for an instruction, you must set the
UseNamedOperandTable bit.

For example, if you have an instruction like:

def ADD : TargetInstr <(outs GPR:$dst), (ins GPR:$src0, GPR:$src1)>;

You can look up the operand indices using the new function, like this:

Target::getNamedOperandIdx(Target::ADD, Target::OpName::dst)  => 0
Target::getNamedOperandIdx(Target::ADD, Target::OpName::src0) => 1
Target::getNamedOperandIdx(Target::ADD, Target::OpName::src1) => 2

The operand names are case sensitive, so $dst and $DST are considered
different operands.

This change is useful for R600 which has instructions with a large number
of operands, many of which model single bit instruction configuration
values.  These configuration bits are common across most instructions,
but may have a different operand index depending on the instruction type.
It is useful to have a convenient way to look up the operand indices,
so these bits can be generically set on any instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184879 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-25 21:22:09 +00:00
Jakob Stoklund Olesen
15a3c18623 Give Sparc instruction patterns direct types instead of register classes.
Also update the documentation since Sparc is the nicest backend, and
used as an example in WritingAnLLVMBackend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177835 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-24 00:56:20 +00:00
Chris Lattner
2ba4bd97d1 remove the rest of the "written by" lines in the documentation. It is
against the developer policy to include this sort of thing as SVN blame
already captures this in a far more fine-grained way.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172109 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10 21:24:04 +00:00
Sean Silva
5d0d67f3d1 docs: Fix FIXME
I actually made a think-o when writing this FIXME since I wrote LangRef
but it should actually have said WritingAnLLVMBackend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171293 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-31 11:49:51 +00:00
Dmitri Gribenko
b64f020a30 Documentation: convert WritingAnLLVMPass.html to reST.
Patch by Anthony Mykhailenko with small fixes by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169992 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12 17:02:44 +00:00
Dmitri Gribenko
91cb694fd7 Documentation: convert WritingAnLLVMBackend.html to reST
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169087 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01 12:13:48 +00:00