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* [SystemZ] Add floating-point test data class instructions.Marcin Koscielnicki2016-06-291-0/+6
| | | | | | | These are not used by CodeGen yet - ISD combiners creating the new node will come in subsequent patches. llvm-svn: 274108
* Pass DebugLoc and SDLoc by const ref.Benjamin Kramer2016-06-121-6/+6
| | | | | | | | This used to be free, copying and moving DebugLocs became expensive after the metadata rewrite. Passing by reference eliminates a ton of track/untrack operations. No functionality change intended. llvm-svn: 272512
* [SystemZ] Support LRVH and STRVH opcodesBryan Chan2016-05-161-0/+13
| | | | | | | | | | | | Summary: On Linux, /usr/include/bits/byteswap-16.h defines __byteswap_16(x) as an inlined LRVH (Load Reversed Half-word) instruction. The SystemZ back-end did not support this opcode and the inlined assembly would cause a fatal error. Reviewers: bryanpkc, uweigand Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D18732 llvm-svn: 269688
* [PR27599] [SystemZ] [SelectionDAG] Fix extension of atomic cmpxchg result.Marcin Koscielnicki2016-05-101-0/+4
| | | | | | | | | | | | Currently, SelectionDAG assumes 8/16-bit cmpxchg returns either a sign extended result, or a zero extended result. SystemZ takes a third option by returning junk in the high bits (rotated contents of the other bytes in the memory word). In that case, don't use Assert*ext, and zero-extend the result ourselves if a comparison is needed. Differential Revision: http://reviews.llvm.org/D19800 llvm-svn: 269075
* [SystemZ] Implement llvm.get.dynamic.area.offsetMarcin Koscielnicki2016-05-041-0/+1
| | | | | | | | To be used for AddressSanitizer. Differential Revision: http://reviews.llvm.org/D19817 llvm-svn: 268572
* [SystemZ] Support Swift Calling ConventionBryan Chan2016-04-281-0/+4
| | | | | | | | | | | | | | | | Summary: Port rL265480, rL264754, rL265997 and rL266252 to SystemZ, in order to enable the Swift port on the architecture. SwiftSelf and SwiftError are assigned to R10 and R9, respectively, which are normally callee-saved registers. For more information, see: RFC: Implementing the Swift calling convention in LLVM and Clang https://groups.google.com/forum/#!topic/llvm-dev/epDd2w93kZ0 Reviewers: kbarton, manmanren, rjmccall, uweigand Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D19414 llvm-svn: 267823
* [SystemZ] [SSP] Add support for LOAD_STACK_GUARD.Marcin Koscielnicki2016-04-241-0/+7
| | | | | | | | | | | | | | This fixes PR22248 on s390x. The previous attempt at this was D19101, which was before LOAD_STACK_GUARD existed. Compared to the previous version, this always emits a rather ugly block of 4 instructions, involving a thread pointer load that can't be shared with other potential users. However, this is necessary for SSP - spilling the guard value (or thread pointer used to load it) is counter to the goal, since it could be overwritten along with the frame it protects. Differential Revision: http://reviews.llvm.org/D19363 llvm-svn: 267340
* [SystemZ] Add support for llvm.thread.pointer intrinsic.Marcin Koscielnicki2016-04-201-0/+1
| | | | | | Differential Revision: http://reviews.llvm.org/D19054 llvm-svn: 266844
* [SystemZ] Support ATOMIC_FENCEUlrich Weigand2016-04-041-0/+4
| | | | | | | | | | | A cross-thread sequentially consistent fence should be lowered into z/Architecture's BCR serialization instruction, instead of causing a fatal error in the back-end. Author: bryanpkc Differential Revision: http://reviews.llvm.org/D18644 llvm-svn: 265292
* [SystemZ] Support llvm.frameaddress/llvm.returnaddress intrinsicsUlrich Weigand2016-04-041-0/+2
| | | | | | | | | | | Enable the SystemZ back-end to lower FRAMEADDR and RETURNADDR, which previously would cause the back-end to crash. Currently, only a frame count of zero is supported. Author: bryanpkc Differential Revision: http://reviews.llvm.org/D18514 llvm-svn: 265291
* [WinEH] Update exception pointer registersJoseph Tremoulet2015-11-071-0/+14
| | | | | | | | | | | | | | | | | | | | Summary: The CLR's personality routine passes these in rdx/edx, not rax/eax. Make getExceptionPointerRegister a virtual method parameterized by personality function to allow making this distinction. Similarly make getExceptionSelectorRegister a virtual method parameterized by personality function, for symmetry. Reviewers: pgavlin, majnemer, rnk Subscribers: jyknight, dsanders, llvm-commits Differential Revision: http://reviews.llvm.org/D14344 llvm-svn: 252383
* Untabify.NAKAMURA Takumi2015-11-021-2/+2
| | | | llvm-svn: 251769
* [SystemZ] Use load-and-test for fp compare with 0 if vector support is present.Jonas Paulsson2015-10-081-0/+4
| | | | | | | | | Since the LTxBRCompare instructions can't be used with vector registers, a normal load-and-test instruction (with a modelled def operand) is used instead. Reviewed by Ulrich Weigand. llvm-svn: 249664
* Untabify.NAKAMURA Takumi2015-09-221-1/+1
| | | | llvm-svn: 248264
* [SystemZ] Support large LLVM IR struct return valuesUlrich Weigand2015-08-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | Recent mesa/llvmpipe crashes on SystemZ due to a failed assertion when attempting to compile a routine with a return type of { <4 x float>, <4 x float>, <4 x float>, <4 x float> } on a system without vector instruction support. This is because after legalizing the vector type, we get a return value consisting of 16 floats, which cannot all be returned in registers. Usually, what should happen in this case is that the target's CanLowerReturn routine rejects the return type, in which case SelectionDAG falls back to implementing a structure return in memory via implicit reference. However, the SystemZ target never actually implemented any CanLowerReturn routine, and thus would accept any struct return type. This patch fixes the crash by implementing CanLowerReturn. As a side effect, this also handles fp128 return values, fixing a todo that was noted in SystemZCallingConv.td. llvm-svn: 244889
* Re-instate the EVT parameter to getScalarShiftAmountTy() for OOT userMehdi Amini2015-07-091-1/+1
| | | | | | | A documentation for this function would be nice by the way. From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 241807
* Make isLegalAddressingMode() taking DataLayout as an argumentMehdi Amini2015-07-091-1/+1
| | | | | | | | | | | | | | | | Summary: This change is part of a series of commits dedicated to have a single DataLayout during compilation by using always the one owned by the module. Reviewers: echristo Subscribers: jholewinski, llvm-commits, rafael, yaron.keren Differential Revision: http://reviews.llvm.org/D11040 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 241778
* Make TargetLowering::getShiftAmountTy() taking DataLayout as an argumentMehdi Amini2015-07-091-1/+1
| | | | | | | | | | | | | | | | Summary: This change is part of a series of commits dedicated to have a single DataLayout during compilation by using always the one owned by the module. Reviewers: echristo Subscribers: jholewinski, llvm-commits, rafael, yaron.keren Differential Revision: http://reviews.llvm.org/D11037 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 241776
* Make TargetLowering::getPointerTy() taking DataLayout as an argumentMehdi Amini2015-07-091-2/+3
| | | | | | | | | | | | | | | | Summary: This change is part of a series of commits dedicated to have a single DataLayout during compilation by using always the one owned by the module. Reviewers: echristo Subscribers: jholewinski, ted, yaron.keren, rafael, llvm-commits Differential Revision: http://reviews.llvm.org/D11028 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 241775
* [TargetLowering] StringRefize asm constraint getters.Benjamin Kramer2015-07-051-5/+3
| | | | | | | | There is some functional change here because it changes target code from atoi(3) to StringRef::getAsInteger which has error checking. For valid constraints there should be no difference. llvm-svn: 241411
* Add address space argument to isLegalAddressingModeMatt Arsenault2015-06-011-1/+2
| | | | | | | | | | This is important because of different addressing modes depending on the address space for GPU targets. This only adds the argument, and does not update any of the uses to provide the correct address space. llvm-svn: 238723
* Change getTargetNodeName() to produce compiler warnings for missing cases, ↵Matthias Braun2015-05-071-1/+1
| | | | | | fix them llvm-svn: 236775
* [SystemZ] Add vector intrinsicsUlrich Weigand2015-05-051-0/+33
| | | | | | | | | | | | | | | | | | | This adds intrinsics to allow access to all of the z13 vector instructions. Note that instructions whose semantics can be described by standard LLVM IR do not get any intrinsics. For each instructions whose semantics *cannot* (fully) be described, we define an LLVM IR target-specific intrinsic that directly maps to this instruction. For instructions that also set the condition code, the LLVM IR intrinsic returns the post-instruction CC value as a second result. Instruction selection will attempt to detect code that compares that CC value against constants and use the condition code directly instead. Based on a patch by Richard Sandiford. llvm-svn: 236527
* [SystemZ] Handle sub-128 vectorsUlrich Weigand2015-05-051-0/+28
| | | | | | | | | | | | | | | | | | | | | The ABI allows sub-128 vectors to be passed and returned in registers, with the vector occupying the upper part of a register. We therefore want to legalize those types by widening the vector rather than promoting the elements. The patch includes some simple tests for sub-128 vectors and also tests that we can recognize various pack sequences, some of which use sub-128 vectors as temporary results. One of these forms is based on the pack sequences generated by llvmpipe when no intrinsics are used. Signed unpacks are recognized as BUILD_VECTORs whose elements are individually sign-extended. Unsigned unpacks can have the equivalent form with zero extension, but they also occur as shuffles in which some elements are zero. Based on a patch by Richard Sandiford. llvm-svn: 236525
* [SystemZ] Add CodeGen support for v4f32Ulrich Weigand2015-05-051-0/+8
| | | | | | | | | | | | | | | | The architecture doesn't really have any native v4f32 operations except v4f32->v2f64 and v2f64->v4f32 conversions, with only half of the v4f32 elements being used. Even so, using vector registers for <4 x float> and scalarising individual operations is much better than generating completely scalar code, since there's much less register pressure. It's also more efficient to do v4f32 comparisons by extending to 2 v2f64s, comparing those, then packing the result. This particularly helps with llvmpipe. Based on a patch by Richard Sandiford. llvm-svn: 236523
* [SystemZ] Add CodeGen support for v2f64Ulrich Weigand2015-05-051-0/+9
| | | | | | | | | This adds ABI and CodeGen support for the v2f64 type, which is natively supported by z13 instructions. Based on a patch by Richard Sandiford. llvm-svn: 236522
* [SystemZ] Add CodeGen support for integer vector typesUlrich Weigand2015-05-051-0/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This the first of a series of patches to add CodeGen support exploiting the instructions of the z13 vector facility. This patch adds support for the native integer vector types (v16i8, v8i16, v4i32, v2i64). When the vector facility is present, we default to the new vector ABI. This is characterized by two major differences: - Vector types are passed/returned in vector registers (except for unnamed arguments of a variable-argument list function). - Vector types are at most 8-byte aligned. The reason for the choice of 8-byte vector alignment is that the hardware is able to efficiently load vectors at 8-byte alignment, and the ABI only guarantees 8-byte alignment of the stack pointer, so requiring any higher alignment for vectors would require dynamic stack re-alignment code. However, for compatibility with old code that may use vector types, when *not* using the vector facility, the old alignment rules (vector types are naturally aligned) remain in use. These alignment rules are not only implemented at the C language level (implemented in clang), but also at the LLVM IR level. This is done by selecting a different DataLayout string depending on whether the vector ABI is in effect or not. Based on a patch by Richard Sandiford. llvm-svn: 236521
* [SystemZ] Support transactional execution on zEC12Ulrich Weigand2015-04-011-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The zEC12 provides the transactional-execution facility. This is exposed to users via a set of builtin routines on other compilers. This patch adds LLVM support to enable those builtins. In partciular, the patch: - adds the transactional-execution and processor-assist facilities - adds MC support for all instructions provided by those facilities - adds LLVM intrinsics for those instructions and hooks them up for CodeGen - adds CodeGen support to optimize CC return value checking Since this is first use of target-specific intrinsics on the platform, the patch creates the include/llvm/IR/IntrinsicsSystemZ.td file and hooks it up in Intrinsics.td. I've also changed Triple::getArchTypePrefix to return "s390" instead of "systemz", since the naming convention for GCC intrinsics uses "s390" on the platform, and it neemed more straight- forward to use the same convention for LLVM IR intrinsics. An associated clang patch makes the intrinsics (and command line switches) available at the source-language level. For reference, the transactional-execution instructions are documented in the z/Architecture Principles of Operation for the zEC12: http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/download/DZ9ZR009.pdf The associated builtins are documented in the GCC manual: http://gcc.gnu.org/onlinedocs/gcc/S_002f390-System-z-Built-in-Functions.html Index: llvm-head/lib/Target/SystemZ/SystemZOperators.td =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZOperators.td +++ llvm-head/lib/Target/SystemZ/SystemZOperators.td @@ -79,6 +79,9 @@ def SDT_ZI32Intrinsic : SDTypeProf def SDT_ZPrefetch : SDTypeProfile<0, 2, [SDTCisVT<0, i32>, SDTCisPtrTy<1>]>; +def SDT_ZTBegin : SDTypeProfile<0, 2, + [SDTCisPtrTy<0>, + SDTCisVT<1, i32>]>; //===----------------------------------------------------------------------===// // Node definitions @@ -180,6 +183,15 @@ def z_prefetch : SDNode<"System [SDNPHasChain, SDNPMayLoad, SDNPMayStore, SDNPMemOperand]>; +def z_tbegin : SDNode<"SystemZISD::TBEGIN", SDT_ZTBegin, + [SDNPHasChain, SDNPOutGlue, SDNPMayStore, + SDNPSideEffect]>; +def z_tbegin_nofloat : SDNode<"SystemZISD::TBEGIN_NOFLOAT", SDT_ZTBegin, + [SDNPHasChain, SDNPOutGlue, SDNPMayStore, + SDNPSideEffect]>; +def z_tend : SDNode<"SystemZISD::TEND", SDTNone, + [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>; + //===----------------------------------------------------------------------===// // Pattern fragments //===----------------------------------------------------------------------===// Index: llvm-head/lib/Target/SystemZ/SystemZInstrFormats.td =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZInstrFormats.td +++ llvm-head/lib/Target/SystemZ/SystemZInstrFormats.td @@ -473,6 +473,17 @@ class InstSS<bits<8> op, dag outs, dag i let Inst{15-0} = BD2; } +class InstS<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern> + : InstSystemZ<4, outs, ins, asmstr, pattern> { + field bits<32> Inst; + field bits<32> SoftFail = 0; + + bits<16> BD2; + + let Inst{31-16} = op; + let Inst{15-0} = BD2; +} + //===----------------------------------------------------------------------===// // Instruction definitions with semantics //===----------------------------------------------------------------------===// Index: llvm-head/lib/Target/SystemZ/SystemZInstrInfo.td =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZInstrInfo.td +++ llvm-head/lib/Target/SystemZ/SystemZInstrInfo.td @@ -1362,6 +1362,60 @@ let Defs = [CC] in { } //===----------------------------------------------------------------------===// +// Transactional execution +//===----------------------------------------------------------------------===// + +let Predicates = [FeatureTransactionalExecution] in { + // Transaction Begin + let hasSideEffects = 1, mayStore = 1, + usesCustomInserter = 1, Defs = [CC] in { + def TBEGIN : InstSIL<0xE560, + (outs), (ins bdaddr12only:$BD1, imm32zx16:$I2), + "tbegin\t$BD1, $I2", + [(z_tbegin bdaddr12only:$BD1, imm32zx16:$I2)]>; + def TBEGIN_nofloat : Pseudo<(outs), (ins bdaddr12only:$BD1, imm32zx16:$I2), + [(z_tbegin_nofloat bdaddr12only:$BD1, + imm32zx16:$I2)]>; + def TBEGINC : InstSIL<0xE561, + (outs), (ins bdaddr12only:$BD1, imm32zx16:$I2), + "tbeginc\t$BD1, $I2", + [(int_s390_tbeginc bdaddr12only:$BD1, + imm32zx16:$I2)]>; + } + + // Transaction End + let hasSideEffects = 1, Defs = [CC], BD2 = 0 in + def TEND : InstS<0xB2F8, (outs), (ins), "tend", [(z_tend)]>; + + // Transaction Abort + let hasSideEffects = 1, isTerminator = 1, isBarrier = 1 in + def TABORT : InstS<0xB2FC, (outs), (ins bdaddr12only:$BD2), + "tabort\t$BD2", + [(int_s390_tabort bdaddr12only:$BD2)]>; + + // Nontransactional Store + let hasSideEffects = 1 in + def NTSTG : StoreRXY<"ntstg", 0xE325, int_s390_ntstg, GR64, 8>; + + // Extract Transaction Nesting Depth + let hasSideEffects = 1 in + def ETND : InherentRRE<"etnd", 0xB2EC, GR32, (int_s390_etnd)>; +} + +//===----------------------------------------------------------------------===// +// Processor assist +//===----------------------------------------------------------------------===// + +let Predicates = [FeatureProcessorAssist] in { + let hasSideEffects = 1, R4 = 0 in + def PPA : InstRRF<0xB2E8, (outs), (ins GR64:$R1, GR64:$R2, imm32zx4:$R3), + "ppa\t$R1, $R2, $R3", []>; + def : Pat<(int_s390_ppa_txassist GR32:$src), + (PPA (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR32:$src, subreg_l32), + 0, 1)>; +} + +//===----------------------------------------------------------------------===// // Miscellaneous Instructions. //===----------------------------------------------------------------------===// Index: llvm-head/lib/Target/SystemZ/SystemZProcessors.td =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZProcessors.td +++ llvm-head/lib/Target/SystemZ/SystemZProcessors.td @@ -60,6 +60,16 @@ def FeatureMiscellaneousExtensions : Sys "Assume that the miscellaneous-extensions facility is installed" >; +def FeatureTransactionalExecution : SystemZFeature< + "transactional-execution", "TransactionalExecution", + "Assume that the transactional-execution facility is installed" +>; + +def FeatureProcessorAssist : SystemZFeature< + "processor-assist", "ProcessorAssist", + "Assume that the processor-assist facility is installed" +>; + def : Processor<"generic", NoItineraries, []>; def : Processor<"z10", NoItineraries, []>; def : Processor<"z196", NoItineraries, @@ -70,4 +80,5 @@ def : Processor<"zEC12", NoItineraries, [FeatureDistinctOps, FeatureLoadStoreOnCond, FeatureHighWord, FeatureFPExtension, FeaturePopulationCount, FeatureFastSerialization, FeatureInterlockedAccess1, - FeatureMiscellaneousExtensions]>; + FeatureMiscellaneousExtensions, + FeatureTransactionalExecution, FeatureProcessorAssist]>; Index: llvm-head/lib/Target/SystemZ/SystemZSubtarget.cpp =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZSubtarget.cpp +++ llvm-head/lib/Target/SystemZ/SystemZSubtarget.cpp @@ -40,6 +40,7 @@ SystemZSubtarget::SystemZSubtarget(const HasLoadStoreOnCond(false), HasHighWord(false), HasFPExtension(false), HasPopulationCount(false), HasFastSerialization(false), HasInterlockedAccess1(false), HasMiscellaneousExtensions(false), + HasTransactionalExecution(false), HasProcessorAssist(false), TargetTriple(TT), InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this), TSInfo(*TM.getDataLayout()), FrameLowering() {} Index: llvm-head/lib/Target/SystemZ/SystemZSubtarget.h =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZSubtarget.h +++ llvm-head/lib/Target/SystemZ/SystemZSubtarget.h @@ -42,6 +42,8 @@ protected: bool HasFastSerialization; bool HasInterlockedAccess1; bool HasMiscellaneousExtensions; + bool HasTransactionalExecution; + bool HasProcessorAssist; private: Triple TargetTriple; @@ -102,6 +104,12 @@ public: return HasMiscellaneousExtensions; } + // Return true if the target has the transactional-execution facility. + bool hasTransactionalExecution() const { return HasTransactionalExecution; } + + // Return true if the target has the processor-assist facility. + bool hasProcessorAssist() const { return HasProcessorAssist; } + // Return true if GV can be accessed using LARL for reloc model RM // and code model CM. bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM, Index: llvm-head/lib/Support/Triple.cpp =================================================================== --- llvm-head.orig/lib/Support/Triple.cpp +++ llvm-head/lib/Support/Triple.cpp @@ -92,7 +92,7 @@ const char *Triple::getArchTypePrefix(Ar case sparcv9: case sparc: return "sparc"; - case systemz: return "systemz"; + case systemz: return "s390"; case x86: case x86_64: return "x86"; Index: llvm-head/include/llvm/IR/Intrinsics.td =================================================================== --- llvm-head.orig/include/llvm/IR/Intrinsics.td +++ llvm-head/include/llvm/IR/Intrinsics.td @@ -634,3 +634,4 @@ include "llvm/IR/IntrinsicsNVVM.td" include "llvm/IR/IntrinsicsMips.td" include "llvm/IR/IntrinsicsR600.td" include "llvm/IR/IntrinsicsBPF.td" +include "llvm/IR/IntrinsicsSystemZ.td" Index: llvm-head/include/llvm/IR/IntrinsicsSystemZ.td =================================================================== --- /dev/null +++ llvm-head/include/llvm/IR/IntrinsicsSystemZ.td @@ -0,0 +1,46 @@ +//===- IntrinsicsSystemZ.td - Defines SystemZ intrinsics ---*- tablegen -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines all of the SystemZ-specific intrinsics. +// +//===----------------------------------------------------------------------===// + +//===----------------------------------------------------------------------===// +// +// Transactional-execution intrinsics +// +//===----------------------------------------------------------------------===// + +let TargetPrefix = "s390" in { + def int_s390_tbegin : Intrinsic<[llvm_i32_ty], [llvm_ptr_ty, llvm_i32_ty], + [IntrNoDuplicate]>; + + def int_s390_tbegin_nofloat : Intrinsic<[llvm_i32_ty], + [llvm_ptr_ty, llvm_i32_ty], + [IntrNoDuplicate]>; + + def int_s390_tbeginc : Intrinsic<[], [llvm_ptr_ty, llvm_i32_ty], + [IntrNoDuplicate]>; + + def int_s390_tabort : Intrinsic<[], [llvm_i64_ty], + [IntrNoReturn, Throws]>; + + def int_s390_tend : GCCBuiltin<"__builtin_tend">, + Intrinsic<[llvm_i32_ty], []>; + + def int_s390_etnd : GCCBuiltin<"__builtin_tx_nesting_depth">, + Intrinsic<[llvm_i32_ty], [], [IntrNoMem]>; + + def int_s390_ntstg : Intrinsic<[], [llvm_i64_ty, llvm_ptr64_ty], + [IntrReadWriteArgMem]>; + + def int_s390_ppa_txassist : GCCBuiltin<"__builtin_tx_assist">, + Intrinsic<[], [llvm_i32_ty]>; +} + Index: llvm-head/lib/Target/SystemZ/SystemZ.h =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZ.h +++ llvm-head/lib/Target/SystemZ/SystemZ.h @@ -68,6 +68,18 @@ const unsigned CCMASK_TM_MSB_0 = C const unsigned CCMASK_TM_MSB_1 = CCMASK_2 | CCMASK_3; const unsigned CCMASK_TM = CCMASK_ANY; +// Condition-code mask assignments for TRANSACTION_BEGIN. +const unsigned CCMASK_TBEGIN_STARTED = CCMASK_0; +const unsigned CCMASK_TBEGIN_INDETERMINATE = CCMASK_1; +const unsigned CCMASK_TBEGIN_TRANSIENT = CCMASK_2; +const unsigned CCMASK_TBEGIN_PERSISTENT = CCMASK_3; +const unsigned CCMASK_TBEGIN = CCMASK_ANY; + +// Condition-code mask assignments for TRANSACTION_END. +const unsigned CCMASK_TEND_TX = CCMASK_0; +const unsigned CCMASK_TEND_NOTX = CCMASK_2; +const unsigned CCMASK_TEND = CCMASK_TEND_TX | CCMASK_TEND_NOTX; + // The position of the low CC bit in an IPM result. const unsigned IPM_CC = 28; Index: llvm-head/lib/Target/SystemZ/SystemZISelLowering.h =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZISelLowering.h +++ llvm-head/lib/Target/SystemZ/SystemZISelLowering.h @@ -146,6 +146,15 @@ enum { // Perform a serialization operation. (BCR 15,0 or BCR 14,0.) SERIALIZE, + // Transaction begin. The first operand is the chain, the second + // the TDB pointer, and the third the immediate control field. + // Returns chain and glue. + TBEGIN, + TBEGIN_NOFLOAT, + + // Transaction end. Just the chain operand. Returns chain and glue. + TEND, + // Wrappers around the inner loop of an 8- or 16-bit ATOMIC_SWAP or // ATOMIC_LOAD_<op>. // @@ -318,6 +327,7 @@ private: SDValue lowerSTACKSAVE(SDValue Op, SelectionDAG &DAG) const; SDValue lowerSTACKRESTORE(SDValue Op, SelectionDAG &DAG) const; SDValue lowerPREFETCH(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) const; // If the last instruction before MBBI in MBB was some form of COMPARE, // try to replace it with a COMPARE AND BRANCH just before MBBI. @@ -355,6 +365,10 @@ private: MachineBasicBlock *emitStringWrapper(MachineInstr *MI, MachineBasicBlock *BB, unsigned Opcode) const; + MachineBasicBlock *emitTransactionBegin(MachineInstr *MI, + MachineBasicBlock *MBB, + unsigned Opcode, + bool NoFloat) const; }; } // end namespace llvm Index: llvm-head/lib/Target/SystemZ/SystemZISelLowering.cpp =================================================================== --- llvm-head.orig/lib/Target/SystemZ/SystemZISelLowering.cpp +++ llvm-head/lib/Target/SystemZ/SystemZISelLowering.cpp @@ -20,6 +20,7 @@ #include "llvm/CodeGen/MachineInstrBuilder.h" #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h" +#include "llvm/IR/Intrinsics.h" #include <cctype> using namespace llvm; @@ -304,6 +305,9 @@ SystemZTargetLowering::SystemZTargetLowe // Codes for which we want to perform some z-specific combinations. setTargetDAGCombine(ISD::SIGN_EXTEND); + // Handle intrinsics. + setOperationAction(ISD::INTRINSIC_W_CHAIN, MVT::Other, Custom); + // We want to use MVC in preference to even a single load/store pair. MaxStoresPerMemcpy = 0; MaxStoresPerMemcpyOptSize = 0; @@ -1031,6 +1035,53 @@ prepareVolatileOrAtomicLoad(SDValue Chai return DAG.getNode(SystemZISD::SERIALIZE, DL, MVT::Other, Chain); } +// Return true if Op is an intrinsic node with chain that returns the CC value +// as its only (other) argument. Provide the associated SystemZISD opcode and +// the mask of valid CC values if so. +static bool isIntrinsicWithCCAndChain(SDValue Op, unsigned &Opcode, + unsigned &CCValid) { + unsigned Id = cast<ConstantSDNode>(Op.getOperand(1))->getZExtValue(); + switch (Id) { + case Intrinsic::s390_tbegin: + Opcode = SystemZISD::TBEGIN; + CCValid = SystemZ::CCMASK_TBEGIN; + return true; + + case Intrinsic::s390_tbegin_nofloat: + Opcode = SystemZISD::TBEGIN_NOFLOAT; + CCValid = SystemZ::CCMASK_TBEGIN; + return true; + + case Intrinsic::s390_tend: + Opcode = SystemZISD::TEND; + CCValid = SystemZ::CCMASK_TEND; + return true; + + default: + return false; + } +} + +// Emit an intrinsic with chain with a glued value instead of its CC result. +static SDValue emitIntrinsicWithChainAndGlue(SelectionDAG &DAG, SDValue Op, + unsigned Opcode) { + // Copy all operands except the intrinsic ID. + unsigned NumOps = Op.getNumOperands(); + SmallVector<SDValue, 6> Ops; + Ops.reserve(NumOps - 1); + Ops.push_back(Op.getOperand(0)); + for (unsigned I = 2; I < NumOps; ++I) + Ops.push_back(Op.getOperand(I)); + + assert(Op->getNumValues() == 2 && "Expected only CC result and chain"); + SDVTList RawVTs = DAG.getVTList(MVT::Other, MVT::Glue); + SDValue Intr = DAG.getNode(Opcode, SDLoc(Op), RawVTs, Ops); + SDValue OldChain = SDValue(Op.getNode(), 1); + SDValue NewChain = SDValue(Intr.getNode(), 0); + DAG.ReplaceAllUsesOfValueWith(OldChain, NewChain); + return Intr; +} + // CC is a comparison that will be implemented using an integer or // floating-point comparison. Return the condition code mask for // a branch on true. In the integer case, CCMASK_CMP_UO is set for @@ -1588,9 +1639,53 @@ static void adjustForTestUnderMask(Selec C.CCMask = NewCCMask; } +// Return a Comparison that tests the condition-code result of intrinsic +// node Call against constant integer CC using comparison code Cond. +// Opcode is the opcode of the SystemZISD operation for the intrinsic +// and CCValid is the set of possible condition-code results. +static Comparison getIntrinsicCmp(SelectionDAG &DAG, unsigned Opcode, + SDValue Call, unsigned CCValid, uint64_t CC, + ISD::CondCode Cond) { + Comparison C(Call, SDValue()); + C.Opcode = Opcode; + C.CCValid = CCValid; + if (Cond == ISD::SETEQ) + // bit 3 for CC==0, bit 0 for CC==3, always false for CC>3. + C.CCMask = CC < 4 ? 1 << (3 - CC) : 0; + else if (Cond == ISD::SETNE) + // ...and the inverse of that. + C.CCMask = CC < 4 ? ~(1 << (3 - CC)) : -1; + else if (Cond == ISD::SETLT || Cond == ISD::SETULT) + // bits above bit 3 for CC==0 (always false), bits above bit 0 for CC==3, + // always true for CC>3. + C.CCMask = CC < 4 ? -1 << (4 - CC) : -1; + else if (Cond == ISD::SETGE || Cond == ISD::SETUGE) + // ...and the inverse of that. + C.CCMask = CC < 4 ? ~(-1 << (4 - CC)) : 0; + else if (Cond == ISD::SETLE || Cond == ISD::SETULE) + // bit 3 and above for CC==0, bit 0 and above for CC==3 (always true), + // always true for CC>3. + C.CCMask = CC < 4 ? -1 << (3 - CC) : -1; + else if (Cond == ISD::SETGT || Cond == ISD::SETUGT) + // ...and the inverse of that. + C.CCMask = CC < 4 ? ~(-1 << (3 - CC)) : 0; + else + llvm_unreachable("Unexpected integer comparison type"); + C.CCMask &= CCValid; + return C; +} + // Decide how to implement a comparison of type Cond between CmpOp0 with CmpOp1. static Comparison getCmp(SelectionDAG &DAG, SDValue CmpOp0, SDValue CmpOp1, ISD::CondCode Cond) { + if (CmpOp1.getOpcode() == ISD::Constant) { + uint64_t Constant = cast<ConstantSDNode>(CmpOp1)->getZExtValue(); + unsigned Opcode, CCValid; + if (CmpOp0.getOpcode() == ISD::INTRINSIC_W_CHAIN && + CmpOp0.getResNo() == 0 && CmpOp0->hasNUsesOfValue(1, 0) && + isIntrinsicWithCCAndChain(CmpOp0, Opcode, CCValid)) + return getIntrinsicCmp(DAG, Opcode, CmpOp0, CCValid, Constant, Cond); + } Comparison C(CmpOp0, CmpOp1); C.CCMask = CCMaskForCondCode(Cond); if (C.Op0.getValueType().isFloatingPoint()) { @@ -1632,6 +1727,17 @@ static Comparison getCmp(SelectionDAG &D // Emit the comparison instruction described by C. static SDValue emitCmp(SelectionDAG &DAG, SDLoc DL, Comparison &C) { + if (!C.Op1.getNode()) { + SDValue Op; + switch (C.Op0.getOpcode()) { + case ISD::INTRINSIC_W_CHAIN: + Op = emitIntrinsicWithChainAndGlue(DAG, C.Op0, C.Opcode); + break; + default: + llvm_unreachable("Invalid comparison operands"); + } + return SDValue(Op.getNode(), Op->getNumValues() - 1); + } if (C.Opcode == SystemZISD::ICMP) return DAG.getNode(SystemZISD::ICMP, DL, MVT::Glue, C.Op0, C.Op1, DAG.getConstant(C.ICmpType, MVT::i32)); @@ -1713,7 +1819,6 @@ SDValue SystemZTargetLowering::lowerSETC } SDValue SystemZTargetLowering::lowerBR_CC(SDValue Op, SelectionDAG &DAG) const { - SDValue Chain = Op.getOperand(0); ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get(); SDValue CmpOp0 = Op.getOperand(2); SDValue CmpOp1 = Op.getOperand(3); @@ -1723,7 +1828,7 @@ SDValue SystemZTargetLowering::lowerBR_C Comparison C(getCmp(DAG, CmpOp0, CmpOp1, CC)); SDValue Glue = emitCmp(DAG, DL, C); return DAG.getNode(SystemZISD::BR_CCMASK, DL, Op.getValueType(), - Chain, DAG.getConstant(C.CCValid, MVT::i32), + Op.getOperand(0), DAG.getConstant(C.CCValid, MVT::i32), DAG.getConstant(C.CCMask, MVT::i32), Dest, Glue); } @@ -2561,6 +2666,30 @@ SDValue SystemZTargetLowering::lowerPREF Node->getMemoryVT(), Node->getMemOperand()); } +// Return an i32 that contains the value of CC immediately after After, +// whose final operand must be MVT::Glue. +static SDValue getCCResult(SelectionDAG &DAG, SDNode *After) { + SDValue Glue = SDValue(After, After->getNumValues() - 1); + SDValue IPM = DAG.getNode(SystemZISD::IPM, SDLoc(After), MVT::i32, Glue); + return DAG.getNode(ISD::SRL, SDLoc(After), MVT::i32, IPM, + DAG.getConstant(SystemZ::IPM_CC, MVT::i32)); +} + +SDValue +SystemZTargetLowering::lowerINTRINSIC_W_CHAIN(SDValue Op, + SelectionDAG &DAG) const { + unsigned Opcode, CCValid; + if (isIntrinsicWithCCAndChain(Op, Opcode, CCValid)) { + assert(Op->getNumValues() == 2 && "Expected only CC result and chain"); + SDValue Glued = emitIntrinsicWithChainAndGlue(DAG, Op, Opcode); + SDValue CC = getCCResult(DAG, Glued.getNode()); + DAG.ReplaceAllUsesOfValueWith(SDValue(Op.getNode(), 0), CC); + return SDValue(); + } + + return SDValue(); +} + SDValue SystemZTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const { switch (Op.getOpcode()) { @@ -2634,6 +2763,8 @@ SDValue SystemZTargetLowering::LowerOper return lowerSTACKRESTORE(Op, DAG); case ISD::PREFETCH: return lowerPREFETCH(Op, DAG); + case ISD::INTRINSIC_W_CHAIN: + return lowerINTRINSIC_W_CHAIN(Op, DAG); default: llvm_unreachable("Unexpected node to lower"); } @@ -2674,6 +2805,9 @@ const char *SystemZTargetLowering::getTa OPCODE(SEARCH_STRING); OPCODE(IPM); OPCODE(SERIALIZE); + OPCODE(TBEGIN); + OPCODE(TBEGIN_NOFLOAT); + OPCODE(TEND); OPCODE(ATOMIC_SWAPW); OPCODE(ATOMIC_LOADW_ADD); OPCODE(ATOMIC_LOADW_SUB); @@ -3501,6 +3635,50 @@ SystemZTargetLowering::emitStringWrapper return DoneMBB; } +// Update TBEGIN instruction with final opcode and register clobbers. +MachineBasicBlock * +SystemZTargetLowering::emitTransactionBegin(MachineInstr *MI, + MachineBasicBlock *MBB, + unsigned Opcode, + bool NoFloat) const { + MachineFunction &MF = *MBB->getParent(); + const TargetFrameLowering *TFI = Subtarget.getFrameLowering(); + const SystemZInstrInfo *TII = Subtarget.getInstrInfo(); + + // Update opcode. + MI->setDesc(TII->get(Opcode)); + + // We cannot handle a TBEGIN that clobbers the stack or frame pointer. + // Make sure to add the corresponding GRSM bits if they are missing. + uint64_t Control = MI->getOperand(2).getImm(); + static const unsigned GPRControlBit[16] = { + 0x8000, 0x8000, 0x4000, 0x4000, 0x2000, 0x2000, 0x1000, 0x1000, + 0x0800, 0x0800, 0x0400, 0x0400, 0x0200, 0x0200, 0x0100, 0x0100 + }; + Control |= GPRControlBit[15]; + if (TFI->hasFP(MF)) + Control |= GPRControlBit[11]; + MI->getOperand(2).setImm(Control); + + // Add GPR clobbers. + for (int I = 0; I < 16; I++) { + if ((Control & GPRControlBit[I]) == 0) { + unsigned Reg = SystemZMC::GR64Regs[I]; + MI->addOperand(MachineOperand::CreateReg(Reg, true, true)); + } + } + + // Add FPR clobbers. + if (!NoFloat && (Control & 4) != 0) { + for (int I = 0; I < 16; I++) { + unsigned Reg = SystemZMC::FP64Regs[I]; + MI->addOperand(MachineOperand::CreateReg(Reg, true, true)); + } + } + + return MBB; +} + MachineBasicBlock *SystemZTargetLowering:: EmitInstrWithCustomInserter(MachineInstr *MI, MachineBasicBlock *MBB) const { switch (MI->getOpcode()) { @@ -3742,6 +3920,12 @@ EmitInstrWithCustomInserter(MachineInstr return emitStringWrapper(MI, MBB, SystemZ::MVST); case SystemZ::SRSTLoop: return emitStringWrapper(MI, MBB, SystemZ::SRST); + case SystemZ::TBEGIN: + return emitTransactionBegin(MI, MBB, SystemZ::TBEGIN, false); + case SystemZ::TBEGIN_nofloat: + return emitTransactionBegin(MI, MBB, SystemZ::TBEGIN, true); + case SystemZ::TBEGINC: + return emitTransactionBegin(MI, MBB, SystemZ::TBEGINC, true); default: llvm_unreachable("Unexpected instr type to insert"); } Index: llvm-head/test/CodeGen/SystemZ/htm-intrinsics.ll =================================================================== --- /dev/null +++ llvm-head/test/CodeGen/SystemZ/htm-intrinsics.ll @@ -0,0 +1,352 @@ +; Test transactional-execution intrinsics. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=zEC12 | FileCheck %s + +declare i32 @llvm.s390.tbegin(i8 *, i32) +declare i32 @llvm.s390.tbegin.nofloat(i8 *, i32) +declare void @llvm.s390.tbeginc(i8 *, i32) +declare i32 @llvm.s390.tend() +declare void @llvm.s390.tabort(i64) +declare void @llvm.s390.ntstg(i64, i64 *) +declare i32 @llvm.s390.etnd() +declare void @llvm.s390.ppa.txassist(i32) + +; TBEGIN. +define void @test_tbegin() { +; CHECK-LABEL: test_tbegin: +; CHECK-NOT: stmg +; CHECK: std %f8, +; CHECK: std %f9, +; CHECK: std %f10, +; CHECK: std %f11, +; CHECK: std %f12, +; CHECK: std %f13, +; CHECK: std %f14, +; CHECK: std %f15, +; CHECK: tbegin 0, 65292 +; CHECK: ld %f8, +; CHECK: ld %f9, +; CHECK: ld %f10, +; CHECK: ld %f11, +; CHECK: ld %f12, +; CHECK: ld %f13, +; CHECK: ld %f14, +; CHECK: ld %f15, +; CHECK: br %r14 + call i32 @llvm.s390.tbegin(i8 *null, i32 65292) + ret void +} + +; TBEGIN (nofloat). +define void @test_tbegin_nofloat1() { +; CHECK-LABEL: test_tbegin_nofloat1: +; CHECK-NOT: stmg +; CHECK-NOT: std +; CHECK: tbegin 0, 65292 +; CHECK: br %r14 + call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 65292) + ret void +} + +; TBEGIN (nofloat) with integer CC return value. +define i32 @test_tbegin_nofloat2() { +; CHECK-LABEL: test_tbegin_nofloat2: +; CHECK-NOT: stmg +; CHECK-NOT: std +; CHECK: tbegin 0, 65292 +; CHECK: ipm %r2 +; CHECK: srl %r2, 28 +; CHECK: br %r14 + %res = call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 65292) + ret i32 %res +} + +; TBEGIN (nofloat) with implicit CC check. +define void @test_tbegin_nofloat3(i32 *%ptr) { +; CHECK-LABEL: test_tbegin_nofloat3: +; CHECK-NOT: stmg +; CHECK-NOT: std +; CHECK: tbegin 0, 65292 +; CHECK: jnh {{\.L*}} +; CHECK: mvhi 0(%r2), 0 +; CHECK: br %r14 + %res = call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 65292) + %cmp = icmp eq i32 %res, 2 + br i1 %cmp, label %if.then, label %if.end + +if.then: ; preds = %entry + store i32 0, i32* %ptr, align 4 + br label %if.end + +if.end: ; preds = %if.then, %entry + ret void +} + +; TBEGIN (nofloat) with dual CC use. +define i32 @test_tbegin_nofloat4(i32 %pad, i32 *%ptr) { +; CHECK-LABEL: test_tbegin_nofloat4: +; CHECK-NOT: stmg +; CHECK-NOT: std +; CHECK: tbegin 0, 65292 +; CHECK: ipm %r2 +; CHECK: srl %r2, 28 +; CHECK: cijlh %r2, 2, {{\.L*}} +; CHECK: mvhi 0(%r3), 0 +; CHECK: br %r14 + %res = call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 65292) + %cmp = icmp eq i32 %res, 2 + br i1 %cmp, label %if.then, label %if.end + +if.then: ; preds = %entry + store i32 0, i32* %ptr, align 4 + br label %if.end + +if.end: ; preds = %if.then, %entry + ret i32 %res +} + +; TBEGIN (nofloat) with register. +define void @test_tbegin_nofloat5(i8 *%ptr) { +; CHECK-LABEL: test_tbegin_nofloat5: +; CHECK-NOT: stmg +; CHECK-NOT: std +; CHECK: tbegin 0(%r2), 65292 +; CHECK: br %r14 + call i32 @llvm.s390.tbegin.nofloat(i8 *%ptr, i32 65292) + ret void +} + +; TBEGIN (nofloat) with GRSM 0x0f00. +define void @test_tbegin_nofloat6() { +; CHECK-LABEL: test_tbegin_nofloat6: +; CHECK: stmg %r6, %r15, +; CHECK-NOT: std +; CHECK: tbegin 0, 3840 +; CHECK: br %r14 + call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 3840) + ret void +} + +; TBEGIN (nofloat) with GRSM 0xf100. +define void @test_tbegin_nofloat7() { +; CHECK-LABEL: test_tbegin_nofloat7: +; CHECK: stmg %r8, %r15, +; CHECK-NOT: std +; CHECK: tbegin 0, 61696 +; CHECK: br %r14 + call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 61696) + ret void +} + +; TBEGIN (nofloat) with GRSM 0xfe00 -- stack pointer added automatically. +define void @test_tbegin_nofloat8() { +; CHECK-LABEL: test_tbegin_nofloat8: +; CHECK-NOT: stmg +; CHECK-NOT: std +; CHECK: tbegin 0, 65280 +; CHECK: br %r14 + call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 65024) + ret void +} + +; TBEGIN (nofloat) with GRSM 0xfb00 -- no frame pointer needed. +define void @test_tbegin_nofloat9() { +; CHECK-LABEL: test_tbegin_nofloat9: +; CHECK: stmg %r10, %r15, +; CHECK-NOT: std +; CHECK: tbegin 0, 64256 +; CHECK: br %r14 + call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 64256) + ret void +} + +; TBEGIN (nofloat) with GRSM 0xfb00 -- frame pointer added automatically. +define void @test_tbegin_nofloat10(i64 %n) { +; CHECK-LABEL: test_tbegin_nofloat10: +; CHECK: stmg %r11, %r15, +; CHECK-NOT: std +; CHECK: tbegin 0, 65280 +; CHECK: br %r14 + %buf = alloca i8, i64 %n + call i32 @llvm.s390.tbegin.nofloat(i8 *null, i32 64256) + ret void +} + +; TBEGINC. +define void @test_tbeginc() { +; CHECK-LABEL: test_tbeginc: +; CHECK-NOT: stmg +; CHECK-NOT: std +; CHECK: tbeginc 0, 65288 +; CHECK: br %r14 + call void @llvm.s390.tbeginc(i8 *null, i32 65288) + ret void +} + +; TEND with integer CC return value. +define i32 @test_tend1() { +; CHECK-LABEL: test_tend1: +; CHECK: tend +; CHECK: ipm %r2 +; CHECK: srl %r2, 28 +; CHECK: br %r14 + %res = call i32 @llvm.s390.tend() + ret i32 %res +} + +; TEND with implicit CC check. +define void @test_tend3(i32 *%ptr) { +; CHECK-LABEL: test_tend3: +; CHECK: tend +; CHECK: je {{\.L*}} +; CHECK: mvhi 0(%r2), 0 +; CHECK: br %r14 + %res = call i32 @llvm.s390.tend() + %cmp = icmp eq i32 %res, 2 + br i1 %cmp, label %if.then, label %if.end + +if.then: ; preds = %entry + store i32 0, i32* %ptr, align 4 + br label %if.end + +if.end: ; preds = %if.then, %entry + ret void +} + +; TEND with dual CC use. +define i32 @test_tend2(i32 %pad, i32 *%ptr) { +; CHECK-LABEL: test_tend2: +; CHECK: tend +; CHECK: ipm %r2 +; CHECK: srl %r2, 28 +; CHECK: cijlh %r2, 2, {{\.L*}} +; CHECK: mvhi 0(%r3), 0 +; CHECK: br %r14 + %res = call i32 @llvm.s390.tend() + %cmp = icmp eq i32 %res, 2 + br i1 %cmp, label %if.then, label %if.end + +if.then: ; preds = %entry + store i32 0, i32* %ptr, align 4 + br label %if.end + +if.end: ; preds = %if.then, %entry + ret i32 %res +} + +; TABORT with register only. +define void @test_tabort1(i64 %val) { +; CHECK-LABEL: test_tabort1: +; CHECK: tabort 0(%r2) +; CHECK: br %r14 + call void @llvm.s390.tabort(i64 %val) + ret void +} + +; TABORT with immediate only. +define void @test_tabort2(i64 %val) { +; CHECK-LABEL: test_tabort2: +; CHECK: tabort 1234 +; CHECK: br %r14 + call void @llvm.s390.tabort(i64 1234) + ret void +} + +; TABORT with register + immediate. +define void @test_tabort3(i64 %val) { +; CHECK-LABEL: test_tabort3: +; CHECK: tabort 1234(%r2) +; CHECK: br %r14 + %sum = add i64 %val, 1234 + call void @llvm.s390.tabort(i64 %sum) + ret void +} + +; TABORT with out-of-range immediate. +define void @test_tabort4(i64 %val) { +; CHECK-LABEL: test_tabort4: +; CHECK: tabort 0({{%r[1-5]}}) +; CHECK: br %r14 + call void @llvm.s390.tabort(i64 4096) + ret void +} + +; NTSTG with base pointer only. +define void @test_ntstg1(i64 *%ptr, i64 %val) { +; CHECK-LABEL: test_ntstg1: +; CHECK: ntstg %r3, 0(%r2) +; CHECK: br %r14 + call void @llvm.s390.ntstg(i64 %val, i64 *%ptr) + ret void +} + +; NTSTG with base and index. +; Check that VSTL doesn't allow an index. +define void @test_ntstg2(i64 *%base, i64 %index, i64 %val) { +; CHECK-LABEL: test_ntstg2: +; CHECK: sllg [[REG:%r[1-5]]], %r3, 3 +; CHECK: ntstg %r4, 0([[REG]],%r2) +; CHECK: br %r14 + %ptr = getelementptr i64, i64 *%base, i64 %index + call void @llvm.s390.ntstg(i64 %val, i64 *%ptr) + ret void +} + +; NTSTG with the highest in-range displacement. +define void @test_ntstg3(i64 *%base, i64 %val) { +; CHECK-LABEL: test_ntstg3: +; CHECK: ntstg %r3, 524280(%r2) +; CHECK: br %r14 + %ptr = getelementptr i64, i64 *%base, i64 65535 + call void @llvm.s390.ntstg(i64 %val, i64 *%ptr) + ret void +} + +; NTSTG with an out-of-range positive displacement. +define void @test_ntstg4(i64 *%base, i64 %val) { +; CHECK-LABEL: test_ntstg4: +; CHECK: ntstg %r3, 0({{%r[1-5]}}) +; CHECK: br %r14 + %ptr = getelementptr i64, i64 *%base, i64 65536 + call void @llvm.s390.ntstg(i64 %val, i64 *%ptr) + ret void +} + +; NTSTG with the lowest in-range displacement. +define void @test_ntstg5(i64 *%base, i64 %val) { +; CHECK-LABEL: test_ntstg5: +; CHECK: ntstg %r3, -524288(%r2) +; CHECK: br %r14 + %ptr = getelementptr i64, i64 *%base, i64 -65536 + call void @llvm.s390.ntstg(i64 %val, i64 *%ptr) + ret void +} + +; NTSTG with an out-of-range negative displacement. +define void @test_ntstg6(i64 *%base, i64 %val) { +; CHECK-LABEL: test_ntstg6: +; CHECK: ntstg %r3, 0({{%r[1-5]}}) +; CHECK: br %r14 + %ptr = getelementptr i64, i64 *%base, i64 -65537 + call void @llvm.s390.ntstg(i64 %val, i64 *%ptr) + ret void +} + +; ETND. +define i32 @test_etnd() { +; CHECK-LABEL: test_etnd: +; CHECK: etnd %r2 +; CHECK: br %r14 + %res = call i32 @llvm.s390.etnd() + ret i32 %res +} + +; PPA (Transaction-Abort Assist) +define void @test_ppa_txassist(i32 %val) { +; CHECK-LABEL: test_ppa_txassist: +; CHECK: ppa %r2, 0, 1 +; CHECK: br %r14 + call void @llvm.s390.ppa.txassist(i32 %val) + ret void +} + Index: llvm-head/test/MC/SystemZ/insn-bad-zEC12.s =================================================================== --- llvm-head.orig/test/MC/SystemZ/insn-bad-zEC12.s +++ llvm-head/test/MC/SystemZ/insn-bad-zEC12.s @@ -3,6 +3,22 @@ # RUN: FileCheck < %t %s #CHECK: error: invalid operand +#CHECK: ntstg %r0, -524289 +#CHECK: error: invalid operand +#CHECK: ntstg %r0, 524288 + + ntstg %r0, -524289 + ntstg %r0, 524288 + +#CHECK: error: invalid operand +#CHECK: ppa %r0, %r0, -1 +#CHECK: error: invalid operand +#CHECK: ppa %r0, %r0, 16 + + ppa %r0, %r0, -1 + ppa %r0, %r0, 16 + +#CHECK: error: invalid operand #CHECK: risbgn %r0,%r0,0,0,-1 #CHECK: error: invalid operand #CHECK: risbgn %r0,%r0,0,0,64 @@ -22,3 +38,47 @@ risbgn %r0,%r0,-1,0,0 risbgn %r0,%r0,256,0,0 +#CHECK: error: invalid operand +#CHECK: tabort -1 +#CHECK: error: invalid operand +#CHECK: tabort 4096 +#CHECK: error: invalid use of indexed addressing +#CHECK: tabort 0(%r1,%r2) + + tabort -1 + tabort 4096 + tabort 0(%r1,%r2) + +#CHECK: error: invalid operand +#CHECK: tbegin -1, 0 +#CHECK: error: invalid operand +#CHECK: tbegin 4096, 0 +#CHECK: error: invalid use of indexed addressing +#CHECK: tbegin 0(%r1,%r2), 0 +#CHECK: error: invalid operand +#CHECK: tbegin 0, -1 +#CHECK: error: invalid operand +#CHECK: tbegin 0, 65536 + + tbegin -1, 0 + tbegin 4096, 0 + tbegin 0(%r1,%r2), 0 + tbegin 0, -1 + tbegin 0, 65536 + +#CHECK: error: invalid operand +#CHECK: tbeginc -1, 0 +#CHECK: error: invalid operand +#CHECK: tbeginc 4096, 0 +#CHECK: error: invalid use of indexed addressing +#CHECK: tbeginc 0(%r1,%r2), 0 +#CHECK: error: invalid operand +#CHECK: tbeginc 0, -1 +#CHECK: error: invalid operand +#CHECK: tbeginc 0, 65536 + + tbeginc -1, 0 + tbeginc 4096, 0 + tbeginc 0(%r1,%r2), 0 + tbeginc 0, -1 + tbeginc 0, 65536 Index: llvm-head/test/MC/SystemZ/insn-good-zEC12.s =================================================================== --- llvm-head.orig/test/MC/SystemZ/insn-good-zEC12.s +++ llvm-head/test/MC/SystemZ/insn-good-zEC12.s @@ -1,6 +1,48 @@ # For zEC12 and above. # RUN: llvm-mc -triple s390x-linux-gnu -mcpu=zEC12 -show-encoding %s | FileCheck %s +#CHECK: etnd %r0 # encoding: [0xb2,0xec,0x00,0x00] +#CHECK: etnd %r15 # encoding: [0xb2,0xec,0x00,0xf0] +#CHECK: etnd %r7 # encoding: [0xb2,0xec,0x00,0x70] + + etnd %r0 + etnd %r15 + etnd %r7 + +#CHECK: ntstg %r0, -524288 # encoding: [0xe3,0x00,0x00,0x00,0x80,0x25] +#CHECK: ntstg %r0, -1 # encoding: [0xe3,0x00,0x0f,0xff,0xff,0x25] +#CHECK: ntstg %r0, 0 # encoding: [0xe3,0x00,0x00,0x00,0x00,0x25] +#CHECK: ntstg %r0, 1 # encoding: [0xe3,0x00,0x00,0x01,0x00,0x25] +#CHECK: ntstg %r0, 524287 # encoding: [0xe3,0x00,0x0f,0xff,0x7f,0x25] +#CHECK: ntstg %r0, 0(%r1) # encoding: [0xe3,0x00,0x10,0x00,0x00,0x25] +#CHECK: ntstg %r0, 0(%r15) # encoding: [0xe3,0x00,0xf0,0x00,0x00,0x25] +#CHECK: ntstg %r0, 524287(%r1,%r15) # encoding: [0xe3,0x01,0xff,0xff,0x7f,0x25] +#CHECK: ntstg %r0, 524287(%r15,%r1) # encoding: [0xe3,0x0f,0x1f,0xff,0x7f,0x25] +#CHECK: ntstg %r15, 0 # encoding: [0xe3,0xf0,0x00,0x00,0x00,0x25] + + ntstg %r0, -524288 + ntstg %r0, -1 + ntstg %r0, 0 + ntstg %r0, 1 + ntstg %r0, 524287 + ntstg %r0, 0(%r1) + ntstg %r0, 0(%r15) + ntstg %r0, 524287(%r1,%r15) + ntstg %r0, 524287(%r15,%r1) + ntstg %r15, 0 + +#CHECK: ppa %r0, %r0, 0 # encoding: [0xb2,0xe8,0x00,0x00] +#CHECK: ppa %r0, %r0, 15 # encoding: [0xb2,0xe8,0xf0,0x00] +#CHECK: ppa %r0, %r15, 0 # encoding: [0xb2,0xe8,0x00,0x0f] +#CHECK: ppa %r4, %r6, 7 # encoding: [0xb2,0xe8,0x70,0x46] +#CHECK: ppa %r15, %r0, 0 # encoding: [0xb2,0xe8,0x00,0xf0] + + ppa %r0, %r0, 0 + ppa %r0, %r0, 15 + ppa %r0, %r15, 0 + ppa %r4, %r6, 7 + ppa %r15, %r0, 0 + #CHECK: risbgn %r0, %r0, 0, 0, 0 # encoding: [0xec,0x00,0x00,0x00,0x00,0x59] #CHECK: risbgn %r0, %r0, 0, 0, 63 # encoding: [0xec,0x00,0x00,0x00,0x3f,0x59] #CHECK: risbgn %r0, %r0, 0, 255, 0 # encoding: [0xec,0x00,0x00,0xff,0x00,0x59] @@ -17,3 +59,68 @@ risbgn %r15,%r0,0,0,0 risbgn %r4,%r5,6,7,8 +#CHECK: tabort 0 # encoding: [0xb2,0xfc,0x00,0x00] +#CHECK: tabort 0(%r1) # encoding: [0xb2,0xfc,0x10,0x00] +#CHECK: tabort 0(%r15) # encoding: [0xb2,0xfc,0xf0,0x00] +#CHECK: tabort 4095 # encoding: [0xb2,0xfc,0x0f,0xff] +#CHECK: tabort 4095(%r1) # encoding: [0xb2,0xfc,0x1f,0xff] +#CHECK: tabort 4095(%r15) # encoding: [0xb2,0xfc,0xff,0xff] + + tabort 0 + tabort 0(%r1) + tabort 0(%r15) + tabort 4095 + tabort 4095(%r1) + tabort 4095(%r15) + +#CHECK: tbegin 0, 0 # encoding: [0xe5,0x60,0x00,0x00,0x00,0x00] +#CHECK: tbegin 4095, 0 # encoding: [0xe5,0x60,0x0f,0xff,0x00,0x00] +#CHECK: tbegin 0, 0 # encoding: [0xe5,0x60,0x00,0x00,0x00,0x00] +#CHECK: tbegin 0, 1 # encoding: [0xe5,0x60,0x00,0x00,0x00,0x01] +#CHECK: tbegin 0, 32767 # encoding: [0xe5,0x60,0x00,0x00,0x7f,0xff] +#CHECK: tbegin 0, 32768 # encoding: [0xe5,0x60,0x00,0x00,0x80,0x00] +#CHECK: tbegin 0, 65535 # encoding: [0xe5,0x60,0x00,0x00,0xff,0xff] +#CHECK: tbegin 0(%r1), 42 # encoding: [0xe5,0x60,0x10,0x00,0x00,0x2a] +#CHECK: tbegin 0(%r15), 42 # encoding: [0xe5,0x60,0xf0,0x00,0x00,0x2a] +#CHECK: tbegin 4095(%r1), 42 # encoding: [0xe5,0x60,0x1f,0xff,0x00,0x2a] +#CHECK: tbegin 4095(%r15), 42 # encoding: [0xe5,0x60,0xff,0xff,0x00,0x2a] + + tbegin 0, 0 + tbegin 4095, 0 + tbegin 0, 0 + tbegin 0, 1 + tbegin 0, 32767 + tbegin 0, 32768 + tbegin 0, 65535 + tbegin 0(%r1), 42 + tbegin 0(%r15), 42 + tbegin 4095(%r1), 42 + tbegin 4095(%r15), 42 + +#CHECK: tbeginc 0, 0 # encoding: [0xe5,0x61,0x00,0x00,0x00,0x00] +#CHECK: tbeginc 4095, 0 # encoding: [0xe5,0x61,0x0f,0xff,0x00,0x00] +#CHECK: tbeginc 0, 0 # encoding: [0xe5,0x61,0x00,0x00,0x00,0x00] +#CHECK: tbeginc 0, 1 # encoding: [0xe5,0x61,0x00,0x00,0x00,0x01] +#CHECK: tbeginc 0, 32767 # encoding: [0xe5,0x61,0x00,0x00,0x7f,0xff] +#CHECK: tbeginc 0, 32768 # encoding: [0xe5,0x61,0x00,0x00,0x80,0x00] +#CHECK: tbeginc 0, 65535 # encoding: [0xe5,0x61,0x00,0x00,0xff,0xff] +#CHECK: tbeginc 0(%r1), 42 # encoding: [0xe5,0x61,0x10,0x00,0x00,0x2a] +#CHECK: tbeginc 0(%r15), 42 # encoding: [0xe5,0x61,0xf0,0x00,0x00,0x2a] +#CHECK: tbeginc 4095(%r1), 42 # encoding: [0xe5,0x61,0x1f,0xff,0x00,0x2a] +#CHECK: tbeginc 4095(%r15), 42 # encoding: [0xe5,0x61,0xff,0xff,0x00,0x2a] + + tbeginc 0, 0 + tbeginc 4095, 0 + tbeginc 0, 0 + tbeginc 0, 1 + tbeginc 0, 32767 + tbeginc 0, 32768 + tbeginc 0, 65535 + tbeginc 0(%r1), 42 + tbeginc 0(%r15), 42 + tbeginc 4095(%r1), 42 + tbeginc 4095(%r15), 42 + +#CHECK: tend # encoding: [0xb2,0xf8,0x00,0x00] + + tend Index: llvm-head/test/MC/SystemZ/insn-bad-z196.s =================================================================== --- llvm-head.orig/test/MC/SystemZ/insn-bad-z196.s +++ llvm-head/test/MC/SystemZ/insn-bad-z196.s @@ -244,6 +244,11 @@ cxlgbr %f0, 16, %r0, 0 cxlgbr %f2, 0, %r0, 0 +#CHECK: error: {{(instruction requires: transactional-execution)?}} +#CHECK: etnd %r7 + + etnd %r7 + #CHECK: error: invalid operand #CHECK: fidbra %f0, 0, %f0, -1 #CHECK: error: invalid operand @@ -546,6 +551,16 @@ locr %r0,%r0,-1 locr %r0,%r0,16 +#CHECK: error: {{(instruction requires: transactional-execution)?}} +#CHECK: ntstg %r0, 524287(%r1,%r15) + + ntstg %r0, 524287(%r1,%r15) + +#CHECK: error: {{(instruction requires: processor-assist)?}} +#CHECK: ppa %r4, %r6, 7 + + ppa %r4, %r6, 7 + #CHECK: error: {{(instruction requires: miscellaneous-extensions)?}} #CHECK: risbgn %r1, %r2, 0, 0, 0 @@ -690,3 +705,24 @@ stocg %r0,-524289,1 stocg %r0,524288,1 stocg %r0,0(%r1,%r2),1 + +#CHECK: error: {{(instruction requires: transactional-execution)?}} +#CHECK: tabort 4095(%r1) + + tabort 4095(%r1) + +#CHECK: error: {{(instruction requires: transactional-execution)?}} +#CHECK: tbegin 4095(%r1), 42 + + tbegin 4095(%r1), 42 + +#CHECK: error: {{(instruction requires: transactional-execution)?}} +#CHECK: tbeginc 4095(%r1), 42 + + tbeginc 4095(%r1), 42 + +#CHECK: error: {{(instruction requires: transactional-execution)?}} +#CHECK: tend + + tend + Index: llvm-head/test/MC/Disassembler/SystemZ/insns.txt =================================================================== --- llvm-head.orig/test/MC/Disassembler/SystemZ/insns.txt +++ llvm-head/test/MC/Disassembler/SystemZ/insns.txt @@ -2503,6 +2503,15 @@ # CHECK: ear %r15, %a15 0xb2 0x4f 0x00 0xff +# CHECK: etnd %r0 +0xb2 0xec 0x00 0x00 + +# CHECK: etnd %r15 +0xb2 0xec 0x00 0xf0 + +# CHECK: etnd %r7 +0xb2 0xec 0x00 0x70 + # CHECK: fidbr %f0, 0, %f0 0xb3 0x5f 0x00 0x00 @@ -6034,6 +6043,36 @@ # CHECK: ny %r15, 0 0xe3 0xf0 0x00 0x00 0x00 0x54 +# CHECK: ntstg %r0, -524288 +0xe3 0x00 0x00 0x00 0x80 0x25 + +# CHECK: ntstg %r0, -1 +0xe3 0x00 0x0f 0xff 0xff 0x25 + +# CHECK: ntstg %r0, 0 +0xe3 0x00 0x00 0x00 0x00 0x25 + +# CHECK: ntstg %r0, 1 +0xe3 0x00 0x00 0x01 0x00 0x25 + +# CHECK: ntstg %r0, 524287 +0xe3 0x00 0x0f 0xff 0x7f 0x25 + +# CHECK: ntstg %r0, 0(%r1) +0xe3 0x00 0x10 0x00 0x00 0x25 + +# CHECK: ntstg %r0, 0(%r15) +0xe3 0x00 0xf0 0x00 0x00 0x25 + +# CHECK: ntstg %r0, 524287(%r1,%r15) +0xe3 0x01 0xff 0xff 0x7f 0x25 + +# CHECK: ntstg %r0, 524287(%r15,%r1) +0xe3 0x0f 0x1f 0xff 0x7f 0x25 + +# CHECK: ntstg %r15, 0 +0xe3 0xf0 0x00 0x00 0x00 0x25 + # CHECK: oc 0(1), 0 0xd6 0x00 0x00 0x00 0x00 0x00 @@ -6346,6 +6385,21 @@ # CHECK: popcnt %r7, %r8 0xb9 0xe1 0x00 0x78 +# CHECK: ppa %r0, %r0, 0 +0xb2 0xe8 0x00 0x00 + +# CHECK: ppa %r0, %r0, 15 +0xb2 0xe8 0xf0 0x00 + +# CHECK: ppa %r0, %r15, 0 +0xb2 0xe8 0x00 0x0f + +# CHECK: ppa %r4, %r6, 7 +0xb2 0xe8 0x70 0x46 + +# CHECK: ppa %r15, %r0, 0 +0xb2 0xe8 0x00 0xf0 + # CHECK: risbg %r0, %r0, 0, 0, 0 0xec 0x00 0x00 0x00 0x00 0x55 @@ -8062,6 +8116,93 @@ # CHECK: sy %r15, 0 0xe3 0xf0 0x00 0x00 0x00 0x5b +# CHECK: tabort 0 +0xb2 0xfc 0x00 0x00 + +# CHECK: tabort 0(%r1) +0xb2 0xfc 0x10 0x00 + +# CHECK: tabort 0(%r15) +0xb2 0xfc 0xf0 0x00 + +# CHECK: tabort 4095 +0xb2 0xfc 0x0f 0xff + +# CHECK: tabort 4095(%r1) +0xb2 0xfc 0x1f 0xff + +# CHECK: tabort 4095(%r15) +0xb2 0xfc 0xff 0xff + +# CHECK: tbegin 0, 0 +0xe5 0x60 0x00 0x00 0x00 0x00 + +# CHECK: tbegin 4095, 0 +0xe5 0x60 0x0f 0xff 0x00 0x00 + +# CHECK: tbegin 0, 0 +0xe5 0x60 0x00 0x00 0x00 0x00 + +# CHECK: tbegin 0, 1 +0xe5 0x60 0x00 0x00 0x00 0x01 + +# CHECK: tbegin 0, 32767 +0xe5 0x60 0x00 0x00 0x7f 0xff + +# CHECK: tbegin 0, 32768 +0xe5 0x60 0x00 0x00 0x80 0x00 + +# CHECK: tbegin 0, 65535 +0xe5 0x60 0x00 0x00 0xff 0xff + +# CHECK: tbegin 0(%r1), 42 +0xe5 0x60 0x10 0x00 0x00 0x2a + +# CHECK: tbegin 0(%r15), 42 +0xe5 0x60 0xf0 0x00 0x00 0x2a + +# CHECK: tbegin 4095(%r1), 42 +0xe5 0x60 0x1f 0xff 0x00 0x2a + +# CHECK: tbegin 4095(%r15), 42 +0xe5 0x60 0xff 0xff 0x00 0x2a + +# CHECK: tbeginc 0, 0 +0xe5 0x61 0x00 0x00 0x00 0x00 + +# CHECK: tbeginc 4095, 0 +0xe5 0x61 0x0f 0xff 0x00 0x00 + +# CHECK: tbeginc 0, 0 +0xe5 0x61 0x00 0x00 0x00 0x00 + +# CHECK: tbeginc 0, 1 +0xe5 0x61 0x00 0x00 0x00 0x01 + +# CHECK: tbeginc 0, 32767 +0xe5 0x61 0x00 0x00 0x7f 0xff + +# CHECK: tbeginc 0, 32768 +0xe5 0x61 0x00 0x00 0x80 0x00 + +# CHECK: tbeginc 0, 65535 +0xe5 0x61 0x00 0x00 0xff 0xff + +# CHECK: tbeginc 0(%r1), 42 +0xe5 0x61 0x10 0x00 0x00 0x2a + +# CHECK: tbeginc 0(%r15), 42 +0xe5 0x61 0xf0 0x00 0x00 0x2a + +# CHECK: tbeginc 4095(%r1), 42 +0xe5 0x61 0x1f 0xff 0x00 0x2a + +# CHECK: tbeginc 4095(%r15), 42 +0xe5 0x61 0xff 0xff 0x00 0x2a + +# CHECK: tend +0xb2 0xf8 0x00 0x00 + # CHECK: tm 0, 0 0x91 0x00 0x00 0x00 llvm-svn: 233803
* [SystemZ] Use POPCNT instruction on z196Ulrich Weigand2015-03-311-0/+4
| | | | | | | | | | We already exploit a number of instructions specific to z196, but not yet POPCNT. Add support for the population-count facility, MC support for the POPCNT instruction, CodeGen support for using POPCNT, and implement the getPopcntSupport TargetTransformInfo hook. llvm-svn: 233689
* [SystemZ] Provide basic TargetTransformInfo implementationUlrich Weigand2015-03-311-0/+2
| | | | | | | | | | | | This hooks up the TargetTransformInfo machinery for SystemZ, and provides an implementation of getIntImmCost. In addition, the patch adds the isLegalICmpImmediate and isLegalAddImmediate TargetLowering overrides, and updates a couple of test cases where we now generate slightly better code. llvm-svn: 233688
* [systemz] Distinguish the 'Q', 'R', 'S', and 'T' inline assembly memory ↵Daniel Sanders2015-03-171-2/+15
| | | | | | | | | | | | | | | | | | | | constraints. Summary: But still handle them the same way since I don't know how they differ on this target. No functional change intended. Reviewers: uweigand Reviewed By: uweigand Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8251 llvm-svn: 232495
* Make each target map all inline assembly memory constraints to ↵Daniel Sanders2015-03-161-0/+7
| | | | | | | | | | | | | | | | | | | InlineAsm::Constraint_m. NFC. Summary: This is instead of doing this in target independent code and is the last non-functional change before targets begin to distinguish between different memory constraints when selecting code for the ISD::INLINEASM node. Next, each target will individually move away from the idea that all memory constraints behave like 'm'. Subscribers: jholewinski, llvm-commits Differential Revision: http://reviews.llvm.org/D8173 llvm-svn: 232373
* getRegForInlineAsmConstraint wants to use TargetRegisterInfo forEric Christopher2015-02-261-2/+3
| | | | | | | | | a lookup, pass that in rather than use a naked call to getSubtargetImpl. This involved passing down and around either a TargetMachine or TargetRegisterInfo. Update all callers/definitions around the targets and SelectionDAG. llvm-svn: 230699
* [SystemZ] Support all TLS access models - CodeGen partUlrich Weigand2015-02-181-0/+8
| | | | | | | | | | | | | | | | | | | | | | The current SystemZ back-end only supports the local-exec TLS access model. This patch adds all required CodeGen support for the other TLS models, which means in particular: - Expand initial-exec TLS accesses by loading TLS offsets from the GOT using @indntpoff relocations. - Expand general-dynamic and local-dynamic accesses by generating the appropriate calls to __tls_get_offset. Note that this routine has a non-standard ABI and requires loading the GOT pointer into %r12, so the patch also adds support for the GLOBAL_OFFSET_TABLE ISD node. - Add a new platform-specific optimization pass to remove redundant __tls_get_offset calls in the local-dynamic model (modeled after the corresponding X86 pass). - Add test cases verifying all access models and optimizations. llvm-svn: 229654
* Reuse a bunch of cached subtargets and remove getSubtarget callsEric Christopher2015-01-311-1/+2
| | | | | | without a Function argument. llvm-svn: 227647
* Canonicalize header guards into a common format.Benjamin Kramer2014-08-131-3/+3
| | | | | | | | | | Add header guards to files that were missing guards. Remove #endif comments as they don't seem common in LLVM (we can easily add them back if we decide they're useful) Changes made by clang-tidy with minor tweaks. llvm-svn: 215558
* Add alignment value to allowsUnalignedMemoryAccessMatt Arsenault2014-07-271-2/+3
| | | | | | | | | | Rename to allowsMisalignedMemoryAccess. On R600, 8 and 16 byte accesses are mostly OK with 4-byte alignment, and don't need to be split into multiple accesses. Vector loads with an alignment of the element type are not uncommon in OpenCL code. llvm-svn: 214055
* Move the subtarget dependent features from SystemZTargetMachineEric Christopher2014-07-011-1/+1
| | | | | | down to the subtarget. Add an initialization routine to assist. llvm-svn: 212124
* Remove the caching of the target machine from SystemZTargetLowering.Eric Christopher2014-06-271-1/+0
| | | | | | Update all callers and uses accordingly. llvm-svn: 211880
* [SystemZ] Move sign_extend optimization to PerformDAGCombineRichard Sandiford2014-03-071-1/+1
| | | | | | | | | | The target was marking SIGN_EXTEND as Custom because it wanted to optimize certain sign-extended shifts. In all other respects the extension is Legal, so it'd be better to do the optimization in PerformDAGCombine instead. No functional change intended. llvm-svn: 203234
* [SystemZ] Remove "virtual" from override methodsRichard Sandiford2014-03-061-44/+37
| | | | | | | Also fix a couple of cases where "override" was missing. No behavioural change intended. llvm-svn: 203110
* [SystemZ] Update namespace formatting to match current guidelinesRichard Sandiford2014-03-061-167/+167
| | | | | | No functional change intended. llvm-svn: 203103
* Switch all uses of LLVM_OVERRIDE to just use 'override' directly.Craig Topper2014-03-021-24/+23
| | | | llvm-svn: 202621
* Add address space argument to allowsUnalignedMemoryAccess.Matt Arsenault2014-02-051-2/+2
| | | | | | | On R600, some address spaces have more strict alignment requirements than others. llvm-svn: 200887
* [SystemZ] Optimize (sext (ashr (shl ...), ...))Richard Sandiford2014-01-131-0/+1
| | | | | | | | | | ...into (ashr (shl (anyext X), ...), ...), which requires one fewer instruction. The (anyext X) can sometimes be simplified too. I didn't do this in DAGCombiner because widening shifts isn't a win on all targets. llvm-svn: 199114
* [SystemZ] Use interlocked-access 1 instructions for CodeGenRichard Sandiford2013-12-241-0/+1
| | | | | | | | | ...namely LOAD AND ADD, LOAD AND AND, LOAD AND OR and LOAD AND EXCLUSIVE OR. LOAD AND ADD LOGICAL isn't really separately useful for LLVM. I'll look at adding reusing the CC results in new year. llvm-svn: 197985
* [SystemZ] Extend integer absolute selectionRichard Sandiford2013-12-131-0/+3
| | | | | | | | This patch makes more use of LPGFR and LNGFR. It builds on top of the LTGFR selection from r197234. Most of the tests are motivated by what InstCombine would produce. llvm-svn: 197236
* Add TargetLowering::prepareVolatileOrAtomicLoadRichard Sandiford2013-12-101-2/+4
| | | | | | | | | | | | | | | | | One unusual feature of the z architecture is that the result of a previous load can be reused indefinitely for subsequent loads, even if a cache-coherent store to that location is performed by another CPU. A special serializing instruction must be used if you want to force a load to be reattempted. Since volatile loads are not supposed to be omitted in this way, we should insert a serializing instruction before each such load. The same goes for atomic loads. The patch implements this at the IR->DAG boundary, in a similar way to atomic fences. It is a no-op for targets other than SystemZ. llvm-svn: 196906
* Add TargetLowering::prepareVolatileOrAtomicLoadRichard Sandiford2013-12-101-0/+7
| | | | | | | | | | | | | | | | | One unusual feature of the z architecture is that the result of a previous load can be reused indefinitely for subsequent loads, even if a cache-coherent store to that location is performed by another CPU. A special serializing instruction must be used if you want to force a load to be reattempted. Since volatile loads are not supposed to be omitted in this way, we should insert a serializing instruction before each such load. The same goes for atomic loads. The patch implements this at the IR->DAG boundary, in a similar way to atomic fences. It is a no-op for targets other than SystemZ. llvm-svn: 196905
* [SystemZ] Handle vectors in getSetCCResultTypeRichard Sandiford2013-11-061-3/+1
| | | | | | | I don't have a standalone testcase for this, but it should allow r193676 to be reapplied. llvm-svn: 194148
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