Commit Graph

998 Commits

Author SHA1 Message Date
Jozef Kolek 8abad7bacc [mips][microMIPSr6] Implement ALUIPC and AUIPC instructions
This patch implements ALUIPC and AUIPC instructions using mapping.

Differential Revision: http://reviews.llvm.org/D8441

llvm-svn: 236858
2015-05-08 14:25:11 +00:00
Jozef Kolek 9ce6e0a926 [mips][microMIPSr6] Implement ADDIUPC and LWPC instructions
This patch implements ADDIUPC and LWPC instructions using mapping.

Differential Revision: http://reviews.llvm.org/D8415

llvm-svn: 236852
2015-05-08 13:52:04 +00:00
Nemanja Ivanovic f3c94b1e3c Add VSX Scalar loads and stores to the PPC back end
This patch corresponds to review:
http://reviews.llvm.org/D9440

It adds a new register class to the PPC back end to contain single precision
values in VSX registers. Additionally, it adds scalar loads and stores for
VSX registers.

llvm-svn: 236755
2015-05-07 18:24:05 +00:00
Jozef Kolek cf98462818 [mips][microMIPSr6] Implement JIALC and JIC instructions
This patch implements JIALC and JIC instructions using mapping.

Differential Revision: http://reviews.llvm.org/D8389

llvm-svn: 236748
2015-05-07 17:12:23 +00:00
Elena Demikhovsky 29792e9a80 AVX-512: Added all forms of FP compare instructions for KNL and SKX.
Added intrinsics for the instructions. CC parameter of the intrinsics was changed from i8 to i32 according to the spec.

By Igor Breger (igor.breger@intel.com)

llvm-svn: 236714
2015-05-07 11:24:42 +00:00
Ulrich Weigand a8b04e1cbc [SystemZ] Add z13 vector facility and MC support
This patch adds support for the z13 processor type and its vector facility,
and adds MC support for all new instructions provided by that facilily.

Apart from defining the new instructions, the main changes are:

- Adding VR128, VR64 and VR32 register classes.
- Making FP64 a subclass of VR64 and FP32 a subclass of VR32.
- Adding a D(V,B) addressing mode for scatter/gather operations
- Adding 1-, 2-, and 3-bit immediate operands for some 4-bit fields.
  Until now all immediate operands have been the same width as the
  underlying field (hence the assert->return change in decode[SU]ImmOperand).

In addition, sys::getHostCPUName is extended to detect running natively
on a z13 machine.

Based on a patch by Richard Sandiford.

llvm-svn: 236520
2015-05-05 19:23:40 +00:00
Daniel Sanders 4160c802d9 [mips][msa] Test basic operations for the N32 ABI too.
Summary:
This required adding instruction aliases for dneg.

N64 will be enabled shortly but requires additional bugfixes.

Reviewers: vkalintiris

Reviewed By: vkalintiris

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9341

llvm-svn: 236489
2015-05-05 08:48:35 +00:00
Tim Northover 03b99f66d7 AArch64: add BFC alias for the BFI/BFM instructions.
Unlike 32-bit ARM, AArch64 can use wzr/xzr to implement this without the need
for a separate instruction.

rdar://18679590

llvm-svn: 236245
2015-04-30 18:28:58 +00:00
Daniel Sanders 4d532b5617 [mips] Sorted instructions in mips64r6 disassembly tests. NFC.
llvm-svn: 236223
2015-04-30 10:52:42 +00:00
Zoran Jovanovic 387ce30685 [mips][microMIPSr6] Implement MUL, MUH, MULU and MUHU instructions
Differential Revision: http://reviews.llvm.org/D8894

llvm-svn: 236131
2015-04-29 17:23:22 +00:00
Zoran Jovanovic cca29e8f6e [mips][microMIPSr6] Implement SUB and SUBU instructions
Differential Revision: http://reviews.llvm.org/D8764

llvm-svn: 236118
2015-04-29 16:22:46 +00:00
Zoran Jovanovic 5f34d44354 [mips][microMIPSr6] Implement ADD, ADDU and ADDIU instructions
Differential Revision: http://reviews.llvm.org/D8704

llvm-svn: 236111
2015-04-29 15:11:07 +00:00
James Y Knight c09bdfa4cb Sparc: Prefer reg+reg address encoding when only one register used.
Reg+%g0 is preferred to Reg+imm0 by the manual, and is what GCC produces.

Futhermore, reg+imm is invalid for the (not yet supported) "alternate
address space" instructions.

Differential Revision: http://reviews.llvm.org/D8753

llvm-svn: 236107
2015-04-29 14:54:44 +00:00
Hal Finkel d86e90abdd [PowerPC] Use sync inst alias when printing
So long as the choice between printing msync and sync is not ambiguous, we can
print 'sync 0' and just 'sync'.

llvm-svn: 235663
2015-04-23 23:05:08 +00:00
Hal Finkel fefcfffe68 [PowerPC] Add asm/disasm support for dcbt with hint
Add assembler/disassembler support for dcbt/dcbtst (and aliases) with the hint
field specified (non-zero). Unforunately, the syntax for this instruction is
special in that it differs for server vs. embedded cores:
   dcbt ra, rb, th [server]
   dcbt th, ra, rb [embedded]
where th can be omitted when it is 0. dcbtst is the same. Thus we need to play
games in the parser and the printer to flip the operands around on the embedded
cores. We'll use the server syntax as the default (binutils currently uses the
embedded form by default, but IBM is changing that).

We also stop marking dcbtst as having unmodeled side effects (this is not
necessary, it is just a hint like dcbt -- noticed by inspection, so no separate
test case).

llvm-svn: 235657
2015-04-23 22:47:57 +00:00
Hal Finkel 7c5cb066d0 [PowerPC] Enable printing instructions using aliases
TableGen had been nicely generating code to print a number of instructions using
shorter aliases (and PowerPC has plenty of short mnemonics), but we were not
calling it. For some of the aliases we support in the parser, TableGen can't
infer the "inverse" alias relationship, so there is still more to do.

Thus, after some hours of updating test cases...

llvm-svn: 235616
2015-04-23 18:30:38 +00:00
Jozef Kolek 8e086cedfa [mips][microMIPSr6] Implement CACHE and PREF instructions
Implement CACHE and PREF instructions using mapping.

Differential Revision: http://reviews.llvm.org/D8893

llvm-svn: 235379
2015-04-21 11:17:25 +00:00
Jozef Kolek 207d248eba [mips][microMIPSr6] Implement BITSWAP instruction
Implement BITSWAP instruction using mapping.

Differential Revision: http://reviews.llvm.org/D8857

llvm-svn: 235321
2015-04-20 18:14:59 +00:00
Vladimir Sukharev bad1d1dc02 [AArch64] LORID_EL1 register must be treated as read-only
Patch by: John Brawn

Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9105

llvm-svn: 235314
2015-04-20 16:54:37 +00:00
Jozef Kolek 676d60125c [mips][microMIPSr6] Implement disassembler support
Implement disassembler support for microMIPS32r6.

Differential Revision: http://reviews.llvm.org/D8490

llvm-svn: 235307
2015-04-20 14:40:38 +00:00
Vladimir Sukharev 6334cf3d69 [AArch64] Add v8.1a "Virtualization Host Extensions"
Reviewers: t.p.northover

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8500

Patch by: Tom Coxon

llvm-svn: 235107
2015-04-16 15:38:58 +00:00
Vladimir Sukharev d49cb8fdd7 [AArch64] Add v8.1a "Limited Ordering Regions" extension
Reviewers: 	t.p.northover

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8499

Patch by: Tom Coxon

llvm-svn: 235105
2015-04-16 15:30:43 +00:00
Vladimir Sukharev 251ce0c2db [AArch64] Add v8.1a "Privileged Access Never" extension
Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8498

llvm-svn: 235104
2015-04-16 15:20:51 +00:00
Vladimir Sukharev 0e0f8d2c1f [ARM] Add v8.1a "Privileged Access Never" extension
Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8504

llvm-svn: 235087
2015-04-16 11:34:25 +00:00
Bradley Smith b913653b91 [AArch64] Allow non-standard INS/DUP encodings
The ARMv8 ARMARM states that for these instructions in A64 state:

  "Unspecified bits in "imm5" are ignored but should be set to zero by an assembler.", (imm4 for INS).

Make the disassembler accept any encoding with these ignored bits set to 1.

llvm-svn: 234896
2015-04-14 15:07:26 +00:00
Nemanja Ivanovic c38b5311cb Add direct moves to/from VSR and exploit them for FP/INT conversions
This patch corresponds to review:
http://reviews.llvm.org/D8928

It adds direct move instructions to/from VSX registers to GPR's. These are
exploited for FP <-> INT conversions.

llvm-svn: 234682
2015-04-11 10:40:42 +00:00
Nemanja Ivanovic c09047916a Add LLVM support for remaining integer divide and permute instructions from ISA 2.06
This is the patch corresponding to review:
http://reviews.llvm.org/D8406

It adds some missing instructions from ISA 2.06 to the PPC back end.

llvm-svn: 234546
2015-04-09 23:54:37 +00:00
Ulrich Weigand 57c85f53ba [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
 

llvm-svn: 233803
2015-04-01 12:51:43 +00:00
Vladimir Sukharev 297bf0eae0 [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

llvm-svn: 233693
2015-03-31 13:15:48 +00:00
Ulrich Weigand 371d10a4eb [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.

llvm-svn: 233690
2015-03-31 12:58:17 +00:00
Ulrich Weigand b401218ca2 [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.

llvm-svn: 233689
2015-03-31 12:56:33 +00:00
Rafael Espindola dd3add6c60 Fix the operand encoding in the test instruction.
Fixes pr22995.

llvm-svn: 233686
2015-03-31 12:31:55 +00:00
Justin Bogner 54dd7df1c0 [ARM] Fix some non-portable shell syntax in r233301's tests
The "|&" operator isn't POSIX, so it can fail depending on the host's
default shell. Avoid it.

There were also a couple of places that did "2>1", but this creates a
file called "1". They clearly meant "2>&1".

llvm-svn: 233309
2015-03-26 19:24:13 +00:00
Vladimir Sukharev 4b18c727a2 [ARM] Add v8.1a "Rounding Double Multiply Add/Subtract" extension
Reviewers: t.p.northover

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8503

llvm-svn: 233301
2015-03-26 18:29:02 +00:00
Ahmed Bougacha 082c5c707a Add a bunch of CHECK missing colons in tests. NFC.
Some wouldn't pass;  fixed most, the rest will be fixed separately.

llvm-svn: 232239
2015-03-14 01:43:57 +00:00
Nemanja Ivanovic 0adf26b9b0 Add support for part-word atomics for PPC
http://reviews.llvm.org/D8090#inline-67337

llvm-svn: 231843
2015-03-10 20:51:07 +00:00
Nemanja Ivanovic e8effe1edb Add LLVM support for PPC cryptography builtins
Review: http://reviews.llvm.org/D7955

llvm-svn: 231285
2015-03-04 20:44:33 +00:00
Kit Barton 0cfa7b7ad0 Add the following 64-bit vector integer arithmetic instructions added in POWER8:
vaddudm
vsubudm
vmulesw
vmulosw
vmuleuw
vmulouw
vmuluwm
vmaxsd
vmaxud
vminsd
vminud
vcmpequd
vcmpequd.
vcmpgtsd
vcmpgtsd.
vcmpgtud
vcmpgtud.
vrld
vsld
vsrd
vsrad

Phabricator review: http://reviews.llvm.org/D7959

llvm-svn: 231115
2015-03-03 19:55:45 +00:00
Craig Topper 09b27e7b24 [X86] Fix diassembler crash on AVX512 cmpps/cmppd with immediate that doesn't fit in 5-bits. Fixes PR22743.
llvm-svn: 230924
2015-03-02 00:22:29 +00:00
Hal Finkel c93a9a2cb4 [PowerPC] Add support for the QPX vector instruction set
This adds support for the QPX vector instruction set, which is used by the
enhanced A2 cores on the IBM BG/Q supercomputers. QPX vectors are 256 bytes
wide, holding 4 double-precision floating-point values. Boolean values, modeled
here as <4 x i1> are actually also represented as floating-point values
(essentially  { -1, 1 } for { false, true }). QPX shares many features with
Altivec and VSX, but is distinct from both of them. One major difference is
that, instead of adding completely-separate vector registers, QPX vector
registers are extensions of the scalar floating-point registers (lane 0 is the
corresponding scalar floating-point value). The operations supported on QPX
vectors mirrors that supported on the scalar floating-point values (with some
additional ones for permutations and logical/comparison operations).

I've been maintaining this support out-of-tree, as part of the bgclang project,
for several years. This is not the entire bgclang patch set, but is most of the
subset that can be cleanly integrated into LLVM proper at this time. Adding
this to the LLVM backend is part of my efforts to rebase bgclang to the current
LLVM trunk, but is independently useful (especially for codes that use LLVM as
a JIT in library form).

The assembler/disassembler test coverage is complete. The CodeGen test coverage
is not, but I've included some tests, and more will be added as follow-up work.

llvm-svn: 230413
2015-02-25 01:06:45 +00:00
Craig Topper 8659344d93 [X86] Add some missing redundant MMX and SSE encodings for disassembler.
llvm-svn: 230165
2015-02-22 07:50:41 +00:00
Daniel Sanders 1779314e3c [mips] Add backend support for Mips32r[35] and Mips64r[35].
Summary:
These ISA's didn't add any instructions so they are almost identical to
Mips32r2 and Mips64r2. Even the ELF e_flags are the same, However the ISA
revision in .MIPS.abiflags is 3 or 5 respectively instead of 2.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: tomatabacu, llvm-commits, atanasyan

Differential Revision: http://reviews.llvm.org/D7381

llvm-svn: 229695
2015-02-18 16:24:50 +00:00
Kit Barton 298beb5e86 This patch adds the VSX logical instructions introduced in the Power ISA 2.07. It also removes the added complexity that favors VMX versions of the three instructions.
Phabricator review: http://reviews.llvm.org/D7616

Commiting on Nemanja's behalf.

llvm-svn: 229694
2015-02-18 16:21:46 +00:00
Craig Topper 916708f152 [X86] Add support for parsing and printing the mnemonic aliases for the XOP VPCOM instructions.
llvm-svn: 229078
2015-02-13 07:42:25 +00:00
Daniel Sanders a19216c8f4 [mips] Merge disassemblers into a single implementation.
Summary:
Currently we have Mips32 and Mips64 disassemblers and this causes the target
triple to affect the disassembly despite all the relevant information being in
the ELF header. These implementations do not need to be separate.

This patch merges them together such that the appropriate tables are checked
for the subtarget (e.g. Mips64 is checked when GP64 is enabled).

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7498

llvm-svn: 228825
2015-02-11 11:28:56 +00:00
Zoran Jovanovic 416886793f [mips][microMIPS] Implement movep instruction
Differential Revision: http://reviews.llvm.org/D7465

llvm-svn: 228703
2015-02-10 16:36:20 +00:00
Jozef Kolek e76eb41c21 [mips][microMIPS] Add disassembler tests for 16-bit instructions BREAK16 and SDBBP16
Differential Revision: http://reviews.llvm.org/D7443

llvm-svn: 228687
2015-02-10 13:20:51 +00:00
Jozef Kolek d68d424abf [mips][microMIPS] Fix disassembling of 16-bit microMIPS instructions LWM16 and SWM16
Differential Revision: http://reviews.llvm.org/D7436

llvm-svn: 228683
2015-02-10 12:41:13 +00:00
Kit Barton 0b0cdb1cd4 This change implements the following three logical vector operations:
veqv (vector equivalence)
vnand
vorc
I increased the AddedComplexity for these instructions to 500 to ensure they are generated instead of issuing other VSX instructions.


Phabricator review: http://reviews.llvm.org/D7469

llvm-svn: 228580
2015-02-09 17:03:18 +00:00
Craig Topper 1d472db8cc [X86] Add GETSEC instruction.
llvm-svn: 228514
2015-02-07 23:36:36 +00:00