Commit Graph

115701 Commits

Author SHA1 Message Date
Andrew Kaylor
6b2fe99659 Fix WinEHPrepare bug with multiple catch handlers
Differential Revision: http://reviews.llvm.org/D8682



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233824 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 17:21:25 +00:00
Vladimir Sukharev
0751793310 [ARM] Rename v8.1a from "extension" to "architecture"
v8.1a is renamed to architecture, following current entity naming approach.

Excess generic cpu is removed. Intended use: "generic" cpu with "v8.1a" subtarget feature

Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8767


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233811 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 14:54:56 +00:00
Vladimir Sukharev
65f303fd0c [AArch64] Rename v8.1a from "extension" to "architecture"
v8.1a is renamed to architecture, accordingly to approaches in ARM backend.

Excess generic cpu is removed. Intended use: "generic" cpu with "v8.1a" subtarget feature

Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8766


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233810 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 14:49:29 +00:00
Rafael Espindola
4eeb5e9c69 git-clang-format r233603.
Thanks to Meador Inge for noticing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233808 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 14:44:59 +00:00
Ulrich Weigand
adf55a5a57 [SystemZ] Support transactional execution on zEC12
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
 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233803 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 12:51:43 +00:00
NAKAMURA Takumi
598eeb5703 Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310.
FIXME: Should ENABLE_ABI_BREAKING_CHECKS be tri-state, "ON/OFF/blank"?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233801 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 11:46:15 +00:00
Craig Topper
57ff120751 Add -mcpu=native support to opt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233789 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 05:32:04 +00:00
David Majnemer
b0155e0975 [WinEH] Implement support for catch-all
A catch (...) doesn't have a type descriptor.  Instead, the 'adjectives'
field has bit six set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233788 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 05:20:42 +00:00
Lang Hames
96bdb6594c [Orc] Reflect process symbols into the LLI Orc-lazy JIT.
This makes symbol resolution essentially identical between MCJIT and the LLI
Orc-lazy JIT.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233786 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 04:42:56 +00:00
Sanjoy Das
000e1b22e4 [CMake] Cache LLVM_ABI_BREAKING_CHECKS in LLVMConfig.cmake.
Not having this breaks clang builds that use an already-built LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233784 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 03:16:10 +00:00
Jiangning Liu
3ee56c2c67 Fix PR23065. Avoid optimizing bitcast of build_vector with constant input to scalar_to_vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233778 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 01:52:38 +00:00
Ahmed Bougacha
252c120f4a [SimplifyLibCalls] Ignore nobuiltin/unavailable fortified libcalls.
We used to do this before refactorings around r225640.
Some clang users checked for _chk libcall availability using:
  __has_builtin(__builtin___memcpy_chk)
When compiling with -fno-builtin, this is always true.
When passing -ffreestanding/-mkernel, which both imply -fno-builtin, we
end up with fortified libcalls, which isn't acceptable in a freestanding
environment which only provides their non-fortified counterparts.

Until we change clang and/or teach external users to check for availability
differently, disregard the "nobuiltin" attribute and TLI::has.

Workaround for PR23093.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233776 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 00:45:09 +00:00
Hal Finkel
54ab6ce385 [PowerPC] FastISel can't handle i1 return values when using CR bits
Under normal circumstances, use of CR bits is disabled when running at -O0, but
it is enabled by default otherwise, and if you have optnone functions, they'll
still generally be generated with crbits turned on (because nothing else turns
them off). FastISel can't handle most things dealing with i1 values when using
CR bits, and checks for that, but was not checking the return type on
functions; we can't fast-isel function calls with i1 return values either when
using CR bits for boolean values.

Fixes PR22664.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233775 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-01 00:40:48 +00:00
Sean Silva
06c06df4de [docs] Fix typo.
Based on a patch by Stanislav Manilov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233771 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 22:48:45 +00:00
David Majnemer
f6fb716e0f [WinEH] ExitingScope is vacuously true if !PoppedCatches.empty()
Remove a redundant condition, no functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233770 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 22:43:56 +00:00
David Majnemer
64386621ec [WinEH] Generate .xdata for catch handlers
This lets us catch exceptions in simple cases.

N.B. Things that do not work include (but are not limited to):
- Throwing from within a catch handler.
- Catching an object with a named catch parameter.
- 'CatchHigh' is fictitious, we aren't sure of its purpose.
- We aren't entirely efficient with regards to the number of EH states
  that we generate.
- IP-to-State tables are sensitive to the order of emission.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233767 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 22:35:44 +00:00
Kostya Serebryany
58bc60892e [fuzzer] more documentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233763 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 21:39:38 +00:00
Sanjay Patel
ace5d1d606 typo; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233761 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 21:24:47 +00:00
Duncan P. N. Exon Smith
34dea0fcab IR: Rename replaceWithUniqued() tests from r233751
replaceWithUniquedUnresolved
replaceWithUniquedUnresolvedChangedOperand
 =>
replaceWithUniquedResolvingOperand
replaceWithUniquedChangingOperand

I find the new names less confusing; they're also more accurate.  Sorry
for the churn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233759 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 21:05:06 +00:00
Duncan P. N. Exon Smith
9ce8e7ea73 Verifier: Add a testcase for verifying type refs
r233664 fixed the `Verifier` so that it doesn't crash on bad type refs.
This deserves a test!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233756 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:57:56 +00:00
Hal Finkel
72cce21049 [PowerPC] Don't use a vector preferred memory type at -O0
Even at -O0, we fall back to SDAG when we hit intrinsics, and if the intrinsic
is a memset/memcpy/etc. we might normally use vector types. At -O0, this is
probably not a good idea (because, if there is a bug in the lowering code,
there would be no good way to turn it off). At -O0, only use scalar preferred
types.

Related to PR22754.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233755 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:56:09 +00:00
Quentin Colombet
6aebd393f0 [AArch64] Enable the codegenprepare optimization that promotes operation to form
extended loads.
Implement the related target lowering hook so that the optimization has a better
estimation of the cost of an extension.

rdar://problem/19267165


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233753 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:52:32 +00:00
Matthias Braun
2c81f7d0a2 Fix AllocationPriority not getting set for derived register classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233752 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:52:25 +00:00
Duncan P. N. Exon Smith
f067a68207 IR: Enable uniquing callbacks during MDNode::replaceWithUniqued()
Uniqued nodes have more complete registration with
`ReplaceableMetadataImpl` so that they can update themselves when
operands change.  Fix a bug where `MDNode::replaceWithUniqued()` wasn't
enabling these callbacks.

The two most obvious ways missing callbacks causes problems is that
auto-resolution fails and re-uniquing (on changed operands) just doesn't
happen.  I've added tests for both -- in both cases, I confirmed that
the final check was failing before the fix.

rdar://problem/20365935

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233751 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:50:50 +00:00
Lang Hames
d26a5d313c [MCJIT] Enable MCJIT regression tests on Darwin.
Commit r233747 fixed the issue that had been blocking this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233750 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:48:52 +00:00
Hal Finkel
20fc6ac99e [SDAG] Handle non-integer preferred memset types for non-constant values
The existing code in getMemsetValue only handled integer-preferred types when
the fill value was not a constant. Make this more robust in two ways:

  1. If the preferred type is a floating-point value, do the mul-splat trick on
     the corresponding integer type and then bitcast.
  2. If the preferred type is a vector, do the mul-splat trick on one vector
     element, and then build a vector out of them.

Fixes PR22754 (although, we should also turn off use of vector types at -O0).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233749 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:35:26 +00:00
Lang Hames
83b5f345b2 [ExecutionEngine] Fix MCJIT::addGlobalMapping.
This patch fixes MCJIT::addGlobalMapping by changing the implementation of the
ExecutionEngineState class. The new implementation maintains a bidirectional
mapping between symbol names (std::strings) and addresses (uint64_ts), rather
than a mapping between Value*s and void*s.

This has fix has been made for backwards compatibility, however the strongly
preferred way to resolve unknown symbols is by writing a custom
RuntimeDyld::SymbolResolver (formerly RTDyldMemoryManager) and overriding the
findSymbol method. The addGlobalMapping method is a hangover from the legacy JIT
(which has was removed in 3.6), and may be deprecated in a future release as
part of a clean-up of the ExecutionEngine interface.

Patch by Murat Bolat. Thanks Murat!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233747 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:31:14 +00:00
Kostya Serebryany
3399e1fd73 [fuzzer] Add support for token-based fuzzing (e.g. for C++). Allow string flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233745 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:13:20 +00:00
Matthias Braun
9df365e44e Clarify that higher priority means higher values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233744 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 20:04:46 +00:00
Matthias Braun
8e4eaabdb8 RegAllocGreedy: Allow target to specify register class ordering.
Specify an allocation order with a register class. This is used by register
allocators with a greedy heuristic. This is usefull as it is sometimes
beneficial to color more constrained classes first.

Differential Revision: http://reviews.llvm.org/D8626

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233743 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 19:57:53 +00:00
Matthias Braun
3f1ec42ec7 RegAllocGreedy: Improve live interval order in ReverseLocal mode
When allocating live intervals in linear order and all of them are local
to a single basic block you get an optimal coloring. This is also true
if you reverse the order, but it is not true if you sort live ranges
beginnings in reverse order, change to sort live range endings in
reverse order. Take the following live ranges for example:

   |---| |--------|
|----------| |-------|

They get colored suboptimally with 3 registers if you sort the live range
starting points in reverse order (but optimally with live range begins in order,
or live range ends in reverse order).

Apparently the previous strategy was intentional because of allocation
time considerations. I am having a hard time replicating these effects,
while I see substantial improvements in allocation quality with this
change.

No testcase as none of the (in tree) targets use reverse order mode.

Differential Revision: http://reviews.llvm.org/D8625

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233742 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 19:57:49 +00:00
Simon Atanasyan
fcadd6d973 [Hexagon] Avoid an unused variable warning when assertions are off
No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233740 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 19:43:47 +00:00
Ulrich Weigand
a9204bb532 [SystemZ] Address review comments for r233689
Change lowerCTPOP to:
- Gracefully handle a known-zero input value
- Simplify computation of significant bit size

Thanks to Jay Foad for the review!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233736 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 19:28:50 +00:00
Sanjay Patel
1b10376319 [X86, AVX] fix zero-extending integer operand load patterns to use integer instructions
This is a follow-on to r233704 and another partial fix for PR22685:
https://llvm.org/bugs/show_bug.cgi?id=22685



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233724 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 18:43:43 +00:00
Lang Hames
89ddc1b326 [Orc][MCJIT] Remove the small code model regression tests.
These regression tests are supposed to test small code model support, but have
been XFAIL'd because we don't have an in-tree memory manager that can guarantee
a small-code-model compatible memory layout. Unfortunately, they can
occasionally pass if they get lucky with memory allocation, causing unexpected
passes on the bots. That's not very helpful.

I'm going to remove these until we have the infrastructure (small-code-model
compatible memory manager) to run them properly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233722 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 18:19:25 +00:00
Tim Northover
5b8131701d AArch64: fix v8.1 sqrdmlah tests on Darwin platforms
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233709 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 16:41:38 +00:00
NAKAMURA Takumi
15ce777898 Rework r233647, "llvm/examples: Suppress building a few JIT examples."
It didn't work with "install".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233708 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 16:41:25 +00:00
Sanjay Patel
7ea151449d [X86, AVX] try to lowerVectorShuffleAsElementInsertion() for all 256-bit vector sub-types
I suggested this change in D7898 (http://llvm.org/viewvc/llvm-project?view=revision&revision=231354)

It improves the v4i64 case although not optimally. This AVX codegen:

  vmovq {{.*#+}} xmm0 = mem[0],zero
  vxorpd %ymm1, %ymm1, %ymm1
  vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3]

Becomes:

  vmovsd {{.*#+}} xmm0 = mem[0],zero

Unfortunately, this doesn't completely solve PR22685. There are still at least 2 problems under here:

    We're not handling v32i8 / v16i16.
    We're not getting the FP / int domains right for instruction selection.

But since this patch alone appears to do no harm, reduces code duplication, and helps v4i64, 
I'm submitting this patch ahead of fixing the above.

Differential Revision: http://reviews.llvm.org/D8341



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233704 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 16:32:11 +00:00
Sanjay Patel
360fb1b93b typos; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233701 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 16:17:51 +00:00
Ulrich Weigand
d2b60b4674 [SystemZ] Add Analysis to required_libraries (fall-out from r233688)
Should fix build failures with cmake builds


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233700 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 15:16:13 +00:00
Scott Douglass
9444646b43 [docs] add cross-reference
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233699 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 15:07:53 +00:00
Krzysztof Parzyszek
4654bc762e Expand MUX instructions early on Hexagon
This time with all files included.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233696 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 13:35:12 +00:00
Krzysztof Parzyszek
b7c19b3cc9 Revert 233694. Weak SVN-fu.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233695 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 13:32:32 +00:00
Krzysztof Parzyszek
af4ad2d843 Expand MUX instructions early on Hexagon
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233694 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 13:29:17 +00:00
Vladimir Sukharev
e99524cf52 [AArch64] Add v8.1a "Rounding Double Multiply Add/Subtract" extension
Reviewers: t.p.northover, jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8502


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233693 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 13:15:48 +00:00
Ulrich Weigand
cb1b3ad4e1 [SystemZ] Support RISBGN instruction on zEC12
So far, we do not yet support any instruction specific to zEC12.
Most of the facilities added with zEC12 are indeed not very useful
to compiler code generation, but there is one exception: the
miscellaneous-extensions facility provides the RISBGN instruction,
which is a variant of RISBG that does not set the condition code.

Add support for this facility, MC support for RISBGN, and CodeGen
support for prefering RISBGN over RISBG on zEC12, unless we can
actually make use of the condition code set by RISBG.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233690 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 12:58:17 +00:00
Ulrich Weigand
ee84973420 [SystemZ] Use POPCNT instruction on z196
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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233689 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 12:56:33 +00:00
Ulrich Weigand
64aa9d8b4c [SystemZ] Provide basic TargetTransformInfo implementation
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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233688 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 12:52:27 +00:00
Rafael Espindola
378981499a Fix the operand encoding in the test instruction.
Fixes pr22995.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233686 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 12:31:55 +00:00
Ulrich Weigand
3e915977af [PowerPC] Remove TargetMachine CPU auto-detection
As was done for X86 in r206094.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233684 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-31 12:01:06 +00:00