| 93795574785de252703591e7fcc8f052c762f25e |
|
05-Aug-2013 |
Richard Sandiford <rsandifo@linux.vnet.ibm.com> |
[SystemZ] Use BRCT and BRCTG to eliminate add-&-compare sequences
This patch just uses a peephole test for "add; compare; branch" sequences
within a single block. The IR optimizers already convert loops to
decrement-and-branch-on-nonzero form in some cases, so even this
simplistic test triggers many times during a clang bootstrap and
projects/test-suite run. It looks like there are still cases where we
need to more strongly prefer branches on nonzero though. E.g. I saw a
case where a loop that started out with a check for 0 ended up with a
check for -1. I'll try to look at that sometime.
I ended up adding the Reference class because MachineInstr::readsRegister()
doesn't check for subregisters (by design, as far as I could tell).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187723 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 66fbb4781841a8411a772b6909a7e0de182b896f |
|
05-Aug-2013 |
Richard Sandiford <rsandifo@linux.vnet.ibm.com> |
[SystemZ] Split out comparison elimination into a separate pass
Perhaps predictably, doing comparison elimination on the fly during
SystemZLongBranch turned out to be a bad idea. The next patches make
use of LOAD AND TEST and BRANCH ON COUNT, both of which require
changes to earlier instructions.
No functionality change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187718 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| bf99364f819465536a6b230b95735b239e3fc7a5 |
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25-Jul-2013 |
Richard Sandiford <rsandifo@linux.vnet.ibm.com> |
[SystemZ] Add LOCR and LOCGR
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187113 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
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| 44b486ed78c60b50aa14d4eed92ee828d4d44293 |
|
20-May-2013 |
Richard Sandiford <rsandifo@linux.vnet.ibm.com> |
[SystemZ] Add long branch pass
Before this change, the SystemZ backend would use BRCL for all branches
and only consider shortening them to BRC when generating an object file.
E.g. a branch on equal would use the JGE alias of BRCL in assembly output,
but might be shortened to the JE alias of BRC in ELF output. This was
a useful first step, but it had two problems:
(1) The z assembler isn't traditionally supposed to perform branch shortening
or branch relaxation. We followed this rule by not relaxing branches
in assembler input, but that meant that generating assembly code and
then assembling it would not produce the same result as going directly
to object code; the former would give long branches everywhere, whereas
the latter would use short branches where possible.
(2) Other useful branches, like COMPARE AND BRANCH, do not have long forms.
We would need to do something else before supporting them.
(Although COMPARE AND BRANCH does not change the condition codes,
the plan is to model COMPARE AND BRANCH as a CC-clobbering instruction
during codegen, so that we can safely lower it to a separate compare
and long branch where necessary. This is not a valid transformation
for the assembler proper to make.)
This patch therefore moves branch relaxation to a pre-emit pass.
For now, calls are still shortened from BRASL to BRAS by the assembler,
although this too is not really the traditional behaviour.
The first test takes about 1.5s to run, and there are likely to be
more tests in this vein once further branch types are added. The feeling
on IRC was that 1.5s is a bit much for a single test, so I've restricted
it to SystemZ hosts for now.
The patch exposes (and fixes) some typos in the main CodeGen/SystemZ tests.
A later patch will remove the {{g}}s from that directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182274 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 4a971705bc6030dc2e4338b3cd5cffa2e0f88b7b |
|
13-May-2013 |
Rafael Espindola <rafael.espindola@gmail.com> |
Remove the MachineMove class.
It was just a less powerful and more confusing version of
MCCFIInstruction. A side effect is that, since MCCFIInstruction uses
dwarf register numbers, calls to getDwarfRegNum are pushed out, which
should allow further simplifications.
I left the MachineModuleInfo::addFrameMove interface unchanged since
this patch was already fairly big.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 1d09d56fe1e3f3faadd4bf4ccf3e585ddb3c3b07 |
|
06-May-2013 |
Ulrich Weigand <ulrich.weigand@de.ibm.com> |
[SystemZ] Add back end
This adds the actual lib/Target/SystemZ target files necessary to
implement the SystemZ target. Note that at this point, the target
cannot yet be built since the configure bits are missing. Those
will be provided shortly by a follow-on patch.
This version of the patch incorporates feedback from reviews by
Chris Lattner and Anton Korobeynikov. Thanks to all reviewers!
Patch by Richard Sandiford.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181203 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 29074ccf6cb00a3cbe32a3b7809d970ecaf8c9bf |
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25-Oct-2011 |
Dan Gohman <gohman@apple.com> |
Remove the SystemZ backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142878 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 3e74d6fdd248e20a280f1dff3da9a6c689c2c4c3 |
|
24-Aug-2011 |
Evan Cheng <evan.cheng@apple.com> |
Move TargetRegistry and TargetSelect from Target to Support where they belong.
These are strictly utilities for registering targets and components.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138450 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 34ad6db8b958fdc0d38e122edf753b5326e69b03 |
|
20-Jul-2011 |
Evan Cheng <evan.cheng@apple.com> |
- Move CodeModel from a TargetMachine global option to MCCodeGenInfo.
- Introduce JITDefault code model. This tells targets to set different default
code model for JIT. This eliminates the ugly hack in TargetMachine where
code model is changed after construction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135580 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
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| 439661395fd2a2a832dba01c65bc88718528313c |
|
19-Jul-2011 |
Evan Cheng <evan.cheng@apple.com> |
Introduce MCCodeGenInfo, which keeps information that can affect codegen
(including compilation, assembly). Move relocation model Reloc::Model from
TargetMachine to MCCodeGenInfo so it's accessible even without TargetMachine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135468 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 1abf2cb59b8d63415780a03329307c0997b2670c |
|
15-Jul-2011 |
Evan Cheng <evan.cheng@apple.com> |
Rename createAsmInfo to createMCAsmInfo and move registration code to MCTargetDesc to prepare for next round of changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135219 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| ebdeeab812beec0385b445f3d4c41a114e0d972f |
|
08-Jul-2011 |
Evan Cheng <evan.cheng@apple.com> |
Eliminate asm parser's dependency on TargetMachine:
- Each target asm parser now creates its own MCSubtatgetInfo (if needed).
- Changed AssemblerPredicate to take subtarget features which tablegen uses
to generate asm matcher subtarget feature queries. e.g.
"ModeThumb,FeatureThumb2" is translated to
"(Bits & ModeThumb) != 0 && (Bits & FeatureThumb2) != 0".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134678 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 276365dd4bc0c2160f91fd8062ae1fc90c86c324 |
|
30-Jun-2011 |
Evan Cheng <evan.cheng@apple.com> |
Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to
be the first encoded as the first feature. It then uses the CPU name to look up
features / scheduling itineray even though clients know full well the CPU name
being used to query these properties.
The fix is to just have the clients explictly pass the CPU name!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134127 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 16c29b5f285f375be53dabaa73e3e91107485fe4 |
|
10-Jan-2011 |
Anton Korobeynikov <asl@math.spbu.ru> |
Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 33464912237efaa0ed7060829e66b59055bdd48b |
|
15-Nov-2010 |
Anton Korobeynikov <asl@math.spbu.ru> |
First step of huge frame-related refactoring: move emit{Prologue,Epilogue} out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119097 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| ff7a562751604a9fe13efc75bd59622244b54d35 |
|
11-May-2010 |
Dan Gohman <gohman@apple.com> |
Implement a bunch more TargetSelectionDAGInfo infrastructure.
Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and
EmitTargetCodeForMemmove out of TargetLowering and into
SelectionDAGInfo to exercise this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103481 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 59a9178fbedb88427c8ff9e5fa7a8f2038f80a2e |
|
07-Nov-2009 |
Chris Lattner <sabre@nondot.org> |
indicate what the native integer types for the target are.
Please verify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86397 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| af76e592c7f9deff0e55c13dbb4a34f07f1c7f64 |
|
22-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79763 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| a7ac47cee1a0b3f4c798ecaa22ecf9d1be9c07e6 |
|
12-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
Change TargetAsmInfo to be constructed via TargetRegistry from a Target+Triple
pair instead of from a virtual method on TargetMachine. This cuts the final
ties of TargetAsmInfo to TargetMachine, meaning that MC can now use
TargetAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78802 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 0a31d2f6456069adba19b8aeca66c68b633c38b4 |
|
11-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
pass the TargetTriple down from each target ctor to the
LLVMTargetMachine ctor. It is currently unused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78711 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| e28039cfd1a9c43b5fa9274bf19372d96f58f460 |
|
03-Aug-2009 |
Daniel Dunbar <daniel@zuster.org> |
Move most targets TargetMachine constructor to only taking a target triple.
- The C, C++, MSIL, and Mips backends still need the module.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77927 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 3be03406c9c3b2075d5ae416499af2f15f703d6f |
|
03-Aug-2009 |
Daniel Dunbar <daniel@zuster.org> |
Normalize Subtarget constructors to take a target triple string instead of
Module*.
Also, dropped uses of TargetMachine where unnecessary. The only target which
still takes a TargetMachine& is Mips, I would appreciate it if someone would
normalize this to match other targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77918 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| e6483e3097a6ed11e4b406536b6c977c42b5f69b |
|
02-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
eliminate the TM argument to the TAI class, remove comment about supporting
solaris :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77865 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 0c795d61878156817cedbac51ec2921f2634c1a5 |
|
25-Jul-2009 |
Daniel Dunbar <daniel@zuster.org> |
Add new helpers for registering targets.
- Less boilerplate == good.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77052 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 4cb1e13769856716261a4d315f8202bd918502c3 |
|
19-Jul-2009 |
Daniel Dunbar <daniel@zuster.org> |
Put Target definitions inside Target specific header, and llvm namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76344 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 7df8462038c4393771a0961c60a2686169e4fd9a |
|
16-Jul-2009 |
Anton Korobeynikov <asl@math.spbu.ru> |
Unbreak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76064 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 6fe326c713c25e33e7e3ea3d1202ba19a19090c5 |
|
16-Jul-2009 |
Anton Korobeynikov <asl@math.spbu.ru> |
Implement 'large' PIC model
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76006 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 70f717f0b769eccda6bc0832320e8e2cb7564b07 |
|
16-Jul-2009 |
Anton Korobeynikov <asl@math.spbu.ru> |
Preliminary asmprinting of globals
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75975 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 51f613fb2b177a19fcc92c38cc58c99de4c330b0 |
|
16-Jul-2009 |
Anton Korobeynikov <asl@math.spbu.ru> |
Add simple frame index elimination
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75939 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|
| 4403b930f867f61b48304a23a6843026b0b9a32a |
|
16-Jul-2009 |
Anton Korobeynikov <asl@math.spbu.ru> |
Let's start another backend :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75909 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
|