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path: root/utils/TableGen/RegisterInfoEmitter.h
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2012-06-11Write llvm-tblgen backends as functions instead of sub-classes.Jakob Stoklund Olesen
The TableGenBackend base class doesn't do much, and will be removed completely soon. Patch by Sean Silva! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158311 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Added register unit sets to the target description.Andrew Trick
This is a new algorithm that finds sets of register units that can be used to model registers pressure. This handles arbitrary, overlapping register classes. Each register class is associated with a (small) list of pressure sets. These are the dimensions of pressure affected by the register class's liveness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154374 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-01Emit the LLVM<->DWARF register mapping as a sorted table and use binary ↵Benjamin Kramer
search to do the lookup. This also avoids emitting the information twice, which led to code bloat. On i386-linux-Release+Asserts with all targets built this change shaves a whopping 1.3 MB off clang. The number is probably exaggerated by recent inliner changes but the methods were already enormous with the old inline cost computation. The DWARF reg -> LLVM reg mapping doesn't seem to have holes in it, so it could be a simple lookup table. I didn't implement that optimization yet to avoid potentially changing functionality. There is still some duplication both in tablegen and the generated code that should be cleaned up eventually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153837 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-01Move TableGen's parser and entry point into a libraryPeter Collingbourne
This is the first step towards splitting LLVM and Clang's tblgen executables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140951 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Teach tblgen to emit MCRegisterClasses.Benjamin Kramer
- This currently introduces more instances of the static DenseSet dtor, but that should be fixable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135735 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo downEvan Cheng
to MCRegisterInfo. Also initialize the mapping at construction time. This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step towards fixing the layering violation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27More refactoring. MC doesn't need know about subreg indices.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133927 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Merge XXXGenRegisterDesc.inc XXXGenRegisterNames.inc XXXGenRegisterInfo.h.incEvan Cheng
into XXXGenRegisterInfo.inc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133922 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Starting to refactor Target to separate out code that's needed to fully describeEvan Cheng
target machine from those that are only needed by codegen. The goal is to sink the essential target description into MC layer so we can start building MC based tools without needing to link in the entire codegen. First step is to refactor TargetRegisterInfo. This patch added a base class MCRegisterInfo which TargetRegisterInfo is derived from. Changed TableGen to separate register description from the rest of the stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133782 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-03Replace std::iostreams with raw_ostream in TableGen.Daniel Dunbar
- Sorry, I can't help myself. - No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74742 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29remove attributions from utils.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45419 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-22Remove trailing whitespaceMisha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21428 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-11Put all LLVM code into the llvm namespace, as per bug 109.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20Added LLVM copyright header.John Criswell
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9305 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-06convert over to using TableGen backendsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7628 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-03Remove dead private:Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7514 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-01Add the ability to emit register file enumsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7471 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-01Initial checkin of register info emitterChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7465 91177308-0d34-0410-b5e6-96231b3b80d8
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