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2012-12-16This patch is needed to make c++ exceptions work for mips16.Reed Kotler
Mips16 is really a processor decoding mode (ala thumb 1) and in the same program, mips16 and mips32 functions can exist and can call each other. If a jal type instruction encounters an address with the lower bit set, then the processor switches to mips16 mode (if it is not already in it). If the lower bit is not set, then it switches to mips32 mode. The linker knows which functions are mips16 and which are mips32. When relocation is performed on code labels, this lower order bit is set if the code label is a mips16 code label. In general this works just fine, however when creating exception handling tables and dwarf, there are cases where you don't want this lower order bit added in. This has been traditionally distinguished in gas assembly source by using a different syntax for the label. lab1: ; this will cause the lower order bit to be added lab2=. ; this will not cause the lower order bit to be added In some cases, it does not matter because in dwarf and debug tables the difference of two labels is used and in that case the lower order bits subtract each other out. To fix this, I have added to mcstreamer the notion of a debuglabel. The default is for label and debug label to be the same. So calling EmitLabel and EmitDebugLabel produce the same result. For various reasons, there is only one set of labels that needs to be modified for the mips exceptions to work. These are the "$eh_func_beginXXX" labels. Mips overrides the debug label suffix from ":" to "=." . This initial patch fixes exceptions. More changes most likely will be needed to DwarfCFException to make all of this work for actual debugging. These changes will be to emit debug labels in some places where a simple label is emitted now. Some historical discussion on this from gcc can be found at: http://gcc.gnu.org/ml/gcc-patches/2008-08/msg00623.html http://gcc.gnu.org/ml/gcc-patches/2008-11/msg01273.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170279 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-15This code implements most of mips16 hardfloat as it is done by gcc.Reed Kotler
In this case, essentially it is soft float with different library routines. The next step will be to make this fully interoperational with mips32 floating point and that requires creating stubs for functions with signatures that contain floating point types. I have a more sophisticated design for mips16 hardfloat which I hope to implement at a later time that directly does floating point without the need for function calls. The mips16 encoding has no floating point instructions so one needs to switch to mips32 mode to execute floating point instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170259 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13Change TargetLowering::getRegClassFor to take an MVT, instead of EVT.Patrik Hagglund
Accordingly, add helper funtions getSimpleValueType (in parallel to getValueType) in SDValue, SDNode, and TargetLowering. This is the first, in a series of patches. This is the second attempt. In the first attempt (r169837), a few getSimpleVT() were hoisted too far, detected by bootstrap failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Do not copy GOT address to register $gp if the function being called hasAkira Hatanaka
internal linkage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170092 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Delete all floating point instruction classes that are no longer used.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170084 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of floating point conditional move instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170080 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of floating point comparison instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170077 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of floating point branch instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170076 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of floating point indexed load and store instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170075 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of floating point multiply-add/sub instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170073 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of floating point load and store instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170072 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of move from/to coprocessor instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170071 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of two register operand floating point instructions.Akira Hatanaka
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170069 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Modify definitions of three register operand floating point instructionsAkira Hatanaka
and separate encoding information from the rest. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170066 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Move classes that do not belong in MipsInstrFormats.td intoAkira Hatanaka
MipsInstrFPU.td. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170061 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Set isCommutable flag in a more explicit way.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170060 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Remove fmt from the parameter list of classes FMADDSUB and FNMADDSUB.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170057 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Remove single-precision floating point instruction from multiclassAkira Hatanaka
FFR2P_M. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170055 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Move class IsCommutable into MipsInstrInfo.td.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13[mips] Remove single-precision floating point instructions from multiclassesAkira Hatanaka
FFR1_W_M and FFR1P_M. The new instruction definitions have one-to-one correspondence with the instructions in the ISA manual. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170053 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12[mips] Fix a memory leak bug report by NAKAMURA Takumi.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170012 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12Sorry about the churn. One more change to getOptimalMemOpType() hook. Did IEvan Cheng
mention the inline memcpy / memset expansion code is a mess? This patch split the ZeroOrLdSrc argument into two: IsMemset and ZeroMemset. The first indicates whether it is expanding a memset or a memcpy / memmove. The later is whether the memset is a memset of zero. It's totally possible (likely even) that targets may want to do different things for memcpy and memset of zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169959 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12- Rename isLegalMemOpType to isSafeMemOpType. "Legal" is a very overloade term.Evan Cheng
Also added more comments to explain why it is generally ok to return true. - Rename getOptimalMemOpType argument IsZeroVal to ZeroOrLdSrc. It's meant to be true for loaded source (memcpy) or zero constants (memset). The poor name choice is probably some kind of legacy issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169954 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11Revert EVT->MVT changes, r169836-169851, due to buildbot failures.Patrik Hagglund
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169854 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11Change TargetLowering::getRegClassFor to take an MVT, instead of EVT.Patrik Hagglund
Accordingly, add helper funtions getSimpleValueType (in parallel to getValueType) in SDValue, SDNode, and TargetLowering. This is the first, in a series of patches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169837 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11[CMake] Remove dependencies to intrinsics_gen I introduced in r169724.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169819 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-10Some enhancements for memcpy / memset inline expansion.Evan Cheng
1. Teach it to use overlapping unaligned load / store to copy / set the trailing bytes. e.g. On 86, use two pairs of movups / movaps for 17 - 31 byte copies. 2. Use f64 for memcpy / memset on targets where i64 is not legal but f64 is. e.g. x86 and ARM. 3. When memcpy from a constant string, do *not* replace the load with a constant if it's not possible to materialize an integer immediate with a single instruction (required a new target hook: TLI.isIntImmLegal()). 4. Use unaligned load / stores more aggressively if target hooks indicates they are "fast". 5. Update ARM target hooks to use unaligned load / stores. e.g. vld1.8 / vst1.8. Also increase the threshold to something reasonable (8 for memset, 4 pairs for memcpy). This significantly improves Dhrystone, up to 50% on ARM iOS devices. rdar://12760078 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169791 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-10[mips] Set HWEncoding field of registers. Use delete functionAkira Hatanaka
getMipsRegisterNumbering and use MCRegisterInfo::getEncodingValue instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169760 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-10[CMake] Update dependencies to intrinsics_gen corresponding to r169711.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169724 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07Use the new MIBundleBuilder class in the Mips target.Jakob Stoklund Olesen
This is the preferred way of creating bundled machine instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169585 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07[mips] Delete nodes and instructions for dynamic alloca that are no longer inAkira Hatanaka
use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169580 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07[mips] Shorten predicate name.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07[mips] Delete unused sub-target features.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07[mips] Remove unnecessary predicates.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort includes for all of the .h files under the 'lib' tree. These wereChandler Carruth
missed in the first pass because the script didn't yet handle include guards. Note that the script is now able to handle all of these headers without manual edits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169224 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Classic JIT is still being supported by MIPS, along with MCJIT.Akira Hatanaka
This change adds endian-awareness to MipsJITInfo and emitWordLE in MipsCodeEmitter has become emitWord now to support both endianness. Patch by Petar Jovanovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169177 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Functions in MipsCodeEmitter.cpp that expand unaligned loads/stores are deadAkira Hatanaka
code. Removing it. Patch by Petar Jovanovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169174 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Use the new script to sort the includes of every file under lib.Chandler Carruth
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Switch LLVM_USE_RVALUE_REFERENCES to LLVM_HAS_RVALUE_REFERENCES.Chandler Carruth
Rationale: 1) This was the name in the comment block. ;] 2) It matches Clang's __has_feature naming convention. 3) It matches other compiler-feature-test conventions. Sorry for the noise. =] I've also switch the comment block to use a \brief tag and not duplicate the name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168996 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Mips direct object xgot supportJack Carter
This patch provides support for the MIPS relocations: *) R_MIPS_GOT_HI16 *) R_MIPS_GOT_LO16 *) R_MIPS_CALL_HI16 *) R_MIPS_CALL_LO16 These are used for large GOT instruction sequences. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168471 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21[mips] Generate big GOT code.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168460 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21[mips] Simplify lowering functions in MipsISelLowering.cpp by using the helperAkira Hatanaka
functions added in r168456. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168458 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21[mips] Add helper functions that create nodes for computing address.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21[mips] Add command line option "-mxgot".Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21[mips] When a node which loads from a GOT is created, pass a MachinePointerInfoAkira Hatanaka
referring to a GOT entry. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168453 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21[mips] Add target operand flag enums for big GOT relocations.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168450 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Initial implementation of MipsTargetLowering::isLegalAddressingMode.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168230 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16[mips] Fix delay slot filler so that instructions with register operand $1 areAkira Hatanaka
allowed in branch delay slot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15[mips] Add predicate HasFPIdx for floating-point indexed load instructionAkira Hatanaka
support and use it in place of HasMips32r2Or64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168089 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Add assertions in MipsLongBranch which check the size of basic blocks.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168078 91177308-0d34-0410-b5e6-96231b3b80d8
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