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Date:      Sat, 4 Aug 2018 13:25:25 +0000 (UTC)
From:      Dimitry Andric <dim@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-projects@freebsd.org
Subject:   svn commit: r337309 - in projects/clang700-import/contrib/llvm: include/llvm/Support lib/Support lib/Target/AArch64 lib/Target/PowerPC lib/Target/X86 tools/llvm-ar
Message-ID:  <201808041325.w74DPP8H088924@repo.freebsd.org>

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Author: dim
Date: Sat Aug  4 13:25:25 2018
New Revision: 337309
URL: https://svnweb.freebsd.org/changeset/base/337309

Log:
  Merge llvm release_70 branch r338892, and resolve conflicts.

Modified:
  projects/clang700-import/contrib/llvm/include/llvm/Support/DebugCounter.h
  projects/clang700-import/contrib/llvm/lib/Support/DebugCounter.cpp
  projects/clang700-import/contrib/llvm/lib/Target/AArch64/AArch64InstrFormats.td
  projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCInstrVSX.td
  projects/clang700-import/contrib/llvm/lib/Target/X86/X86FastISel.cpp
  projects/clang700-import/contrib/llvm/tools/llvm-ar/llvm-ar.cpp
Directory Properties:
  projects/clang700-import/contrib/llvm/   (props changed)

Modified: projects/clang700-import/contrib/llvm/include/llvm/Support/DebugCounter.h
==============================================================================
--- projects/clang700-import/contrib/llvm/include/llvm/Support/DebugCounter.h	Sat Aug  4 13:16:20 2018	(r337308)
+++ projects/clang700-import/contrib/llvm/include/llvm/Support/DebugCounter.h	Sat Aug  4 13:25:25 2018	(r337309)
@@ -70,10 +70,9 @@ class DebugCounter { (public)
     return instance().addCounter(Name, Desc);
   }
   inline static bool shouldExecute(unsigned CounterName) {
-// Compile to nothing when debugging is off
-#ifdef NDEBUG
-    return true;
-#else
+    if (!isCountingEnabled())
+      return true;
+
     auto &Us = instance();
     auto Result = Us.Counters.find(CounterName);
     if (Result != Us.Counters.end()) {
@@ -93,7 +92,6 @@ class DebugCounter { (public)
     }
     // Didn't find the counter, should we warn?
     return true;
-#endif // NDEBUG
   }
 
   // Return true if a given counter had values set (either programatically or on
@@ -142,7 +140,23 @@ class DebugCounter { (public)
   }
   CounterVector::const_iterator end() const { return RegisteredCounters.end(); }
 
+  // Force-enables counting all DebugCounters.
+  //
+  // Since DebugCounters are incompatible with threading (not only do they not
+  // make sense, but we'll also see data races), this should only be used in
+  // contexts where we're certain we won't spawn threads.
+  static void enableAllCounters() { instance().Enabled = true; }
+
 private:
+  static bool isCountingEnabled() {
+// Compile to nothing when debugging is off
+#ifdef NDEBUG
+    return false;
+#else
+    return instance().Enabled;
+#endif
+  }
+
   unsigned addCounter(const std::string &Name, const std::string &Desc) {
     unsigned Result = RegisteredCounters.insert(Name);
     Counters[Result] = {};
@@ -159,6 +173,10 @@ class DebugCounter { (public)
   };
   DenseMap<unsigned, CounterInfo> Counters;
   CounterVector RegisteredCounters;
+
+  // Whether we should do DebugCounting at all. DebugCounters aren't
+  // thread-safe, so this should always be false in multithreaded scenarios.
+  bool Enabled = false;
 };
 
 #define DEBUG_COUNTER(VARNAME, COUNTERNAME, DESC)                              \

Modified: projects/clang700-import/contrib/llvm/lib/Support/DebugCounter.cpp
==============================================================================
--- projects/clang700-import/contrib/llvm/lib/Support/DebugCounter.cpp	Sat Aug  4 13:16:20 2018	(r337308)
+++ projects/clang700-import/contrib/llvm/lib/Support/DebugCounter.cpp	Sat Aug  4 13:25:25 2018	(r337309)
@@ -82,6 +82,7 @@ void DebugCounter::push_back(const std::string &Val) {
              << " is not a registered counter\n";
       return;
     }
+    enableAllCounters();
     Counters[CounterID].Skip = CounterVal;
     Counters[CounterID].IsSet = true;
   } else if (CounterPair.first.endswith("-count")) {
@@ -92,6 +93,7 @@ void DebugCounter::push_back(const std::string &Val) {
              << " is not a registered counter\n";
       return;
     }
+    enableAllCounters();
     Counters[CounterID].StopAfter = CounterVal;
     Counters[CounterID].IsSet = true;
   } else {

Modified: projects/clang700-import/contrib/llvm/lib/Target/AArch64/AArch64InstrFormats.td
==============================================================================
--- projects/clang700-import/contrib/llvm/lib/Target/AArch64/AArch64InstrFormats.td	Sat Aug  4 13:16:20 2018	(r337308)
+++ projects/clang700-import/contrib/llvm/lib/Target/AArch64/AArch64InstrFormats.td	Sat Aug  4 13:25:25 2018	(r337309)
@@ -4639,7 +4639,9 @@ class BaseFPCondComparison<bit signalAllNans, Register
 
 multiclass FPCondComparison<bit signalAllNans, string mnemonic,
                             SDPatternOperator OpNode = null_frag> {
-  def Hrr : BaseFPCondComparison<signalAllNans, FPR16, mnemonic, []> {
+  def Hrr : BaseFPCondComparison<signalAllNans, FPR16, mnemonic,
+      [(set NZCV, (OpNode (f16 FPR16:$Rn), (f16 FPR16:$Rm), (i32 imm:$nzcv),
+                          (i32 imm:$cond), NZCV))]> {
     let Inst{23-22} = 0b11;
     let Predicates = [HasFullFP16];
   }

Modified: projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
==============================================================================
--- projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCISelLowering.cpp	Sat Aug  4 13:16:20 2018	(r337308)
+++ projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCISelLowering.cpp	Sat Aug  4 13:25:25 2018	(r337309)
@@ -11761,6 +11761,14 @@ SDValue PPCTargetLowering::DAGCombineExtBoolTrunc(SDNo
       ShiftCst);
 }
 
+// Is this an extending load from an f32 to an f64?
+static bool isFPExtLoad(SDValue Op) {
+  if (LoadSDNode *LD = dyn_cast<LoadSDNode>(Op.getNode()))
+    return LD->getExtensionType() == ISD::EXTLOAD &&
+      Op.getValueType() == MVT::f64;
+  return false;
+}
+
 /// Reduces the number of fp-to-int conversion when building a vector.
 ///
 /// If this vector is built out of floating to integer conversions,
@@ -11795,11 +11803,18 @@ combineElementTruncationToVectorTruncation(SDNode *N,
     SmallVector<SDValue, 4> Ops;
     EVT TargetVT = N->getValueType(0);
     for (int i = 0, e = N->getNumOperands(); i < e; ++i) {
-      if (N->getOperand(i).getOpcode() != PPCISD::MFVSR)
+      SDValue NextOp = N->getOperand(i);
+      if (NextOp.getOpcode() != PPCISD::MFVSR)
         return SDValue();
-      unsigned NextConversion = N->getOperand(i).getOperand(0).getOpcode();
+      unsigned NextConversion = NextOp.getOperand(0).getOpcode();
       if (NextConversion != FirstConversion)
         return SDValue();
+      // If we are converting to 32-bit integers, we need to add an FP_ROUND.
+      // This is not valid if the input was originally double precision. It is
+      // also not profitable to do unless this is an extending load in which
+      // case doing this combine will allow us to combine consecutive loads.
+      if (Is32Bit && !isFPExtLoad(NextOp.getOperand(0).getOperand(0)))
+        return SDValue();
       if (N->getOperand(i) != FirstInput)
         IsSplat = false;
     }
@@ -11813,8 +11828,9 @@ combineElementTruncationToVectorTruncation(SDNode *N,
     // Now that we know we have the right type of node, get its operands
     for (int i = 0, e = N->getNumOperands(); i < e; ++i) {
       SDValue In = N->getOperand(i).getOperand(0);
-      // For 32-bit values, we need to add an FP_ROUND node.
       if (Is32Bit) {
+        // For 32-bit values, we need to add an FP_ROUND node (if we made it
+        // here, we know that all inputs are extending loads so this is safe).
         if (In.isUndef())
           Ops.push_back(DAG.getUNDEF(SrcVT));
         else {

Modified: projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCInstrVSX.td
==============================================================================
--- projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCInstrVSX.td	Sat Aug  4 13:16:20 2018	(r337308)
+++ projects/clang700-import/contrib/llvm/lib/Target/PowerPC/PPCInstrVSX.td	Sat Aug  4 13:25:25 2018	(r337309)
@@ -3494,6 +3494,17 @@ def DblToFlt {
   dag B1 = (f32 (fpround (f64 (extractelt v2f64:$B, 1))));
 }
 
+def ExtDbl {
+  dag A0S = (i32 (PPCmfvsr (f64 (PPCfctiwz (f64 (extractelt v2f64:$A, 0))))));
+  dag A1S = (i32 (PPCmfvsr (f64 (PPCfctiwz (f64 (extractelt v2f64:$A, 1))))));
+  dag B0S = (i32 (PPCmfvsr (f64 (PPCfctiwz (f64 (extractelt v2f64:$B, 0))))));
+  dag B1S = (i32 (PPCmfvsr (f64 (PPCfctiwz (f64 (extractelt v2f64:$B, 1))))));
+  dag A0U = (i32 (PPCmfvsr (f64 (PPCfctiwuz (f64 (extractelt v2f64:$A, 0))))));
+  dag A1U = (i32 (PPCmfvsr (f64 (PPCfctiwuz (f64 (extractelt v2f64:$A, 1))))));
+  dag B0U = (i32 (PPCmfvsr (f64 (PPCfctiwuz (f64 (extractelt v2f64:$B, 0))))));
+  dag B1U = (i32 (PPCmfvsr (f64 (PPCfctiwuz (f64 (extractelt v2f64:$B, 1))))));
+}
+
 def ByteToWord {
   dag LE_A0 = (i32 (sext_inreg (i32 (vector_extract v16i8:$A, 0)), i8));
   dag LE_A1 = (i32 (sext_inreg (i32 (vector_extract v16i8:$A, 4)), i8));
@@ -3571,9 +3582,15 @@ def FltToULong {
 }
 def DblToInt {
   dag A = (i32 (PPCmfvsr (f64 (PPCfctiwz f64:$A))));
+  dag B = (i32 (PPCmfvsr (f64 (PPCfctiwz f64:$B))));
+  dag C = (i32 (PPCmfvsr (f64 (PPCfctiwz f64:$C))));
+  dag D = (i32 (PPCmfvsr (f64 (PPCfctiwz f64:$D))));
 }
 def DblToUInt {
   dag A = (i32 (PPCmfvsr (f64 (PPCfctiwuz f64:$A))));
+  dag B = (i32 (PPCmfvsr (f64 (PPCfctiwuz f64:$B))));
+  dag C = (i32 (PPCmfvsr (f64 (PPCfctiwuz f64:$C))));
+  dag D = (i32 (PPCmfvsr (f64 (PPCfctiwuz f64:$D))));
 }
 def DblToLong {
   dag A = (i64 (PPCmfvsr (f64 (PPCfctidz f64:$A))));
@@ -3612,6 +3629,47 @@ def MrgFP {
   dag BAlToFlt = (XVCVDPSP (XXPERMDI $B, $A, 3));
 }
 
+// Word-element merge dags - conversions from f64 to i32 merged into vectors.
+def MrgWords {
+  // For big endian, we merge low and hi doublewords (A, B).
+  dag A0B0 = (v2f64 (XXPERMDI v2f64:$A, v2f64:$B, 0));
+  dag A1B1 = (v2f64 (XXPERMDI v2f64:$A, v2f64:$B, 3));
+  dag CVA1B1S = (v4i32 (XVCVDPSXWS A1B1));
+  dag CVA0B0S = (v4i32 (XVCVDPSXWS A0B0));
+  dag CVA1B1U = (v4i32 (XVCVDPUXWS A1B1));
+  dag CVA0B0U = (v4i32 (XVCVDPUXWS A0B0));
+
+  // For little endian, we merge low and hi doublewords (B, A).
+  dag B1A1 = (v2f64 (XXPERMDI v2f64:$B, v2f64:$A, 0));
+  dag B0A0 = (v2f64 (XXPERMDI v2f64:$B, v2f64:$A, 3));
+  dag CVB1A1S = (v4i32 (XVCVDPSXWS B1A1));
+  dag CVB0A0S = (v4i32 (XVCVDPSXWS B0A0));
+  dag CVB1A1U = (v4i32 (XVCVDPUXWS B1A1));
+  dag CVB0A0U = (v4i32 (XVCVDPUXWS B0A0));
+
+  // For big endian, we merge hi doublewords of (A, C) and (B, D), convert
+  // then merge.
+  dag AC = (v2f64 (XXPERMDI (COPY_TO_REGCLASS f64:$A, VSRC),
+                            (COPY_TO_REGCLASS f64:$C, VSRC), 0));
+  dag BD = (v2f64 (XXPERMDI (COPY_TO_REGCLASS f64:$B, VSRC),
+                            (COPY_TO_REGCLASS f64:$D, VSRC), 0));
+  dag CVACS = (v4i32 (XVCVDPSXWS AC));
+  dag CVBDS = (v4i32 (XVCVDPSXWS BD));
+  dag CVACU = (v4i32 (XVCVDPUXWS AC));
+  dag CVBDU = (v4i32 (XVCVDPUXWS BD));
+
+  // For little endian, we merge hi doublewords of (D, B) and (C, A), convert
+  // then merge.
+  dag DB = (v2f64 (XXPERMDI (COPY_TO_REGCLASS f64:$D, VSRC),
+                            (COPY_TO_REGCLASS f64:$B, VSRC), 0));
+  dag CA = (v2f64 (XXPERMDI (COPY_TO_REGCLASS f64:$C, VSRC),
+                            (COPY_TO_REGCLASS f64:$A, VSRC), 0));
+  dag CVDBS = (v4i32 (XVCVDPSXWS DB));
+  dag CVCAS = (v4i32 (XVCVDPSXWS CA));
+  dag CVDBU = (v4i32 (XVCVDPUXWS DB));
+  dag CVCAU = (v4i32 (XVCVDPUXWS CA));
+}
+
 // Patterns for BUILD_VECTOR nodes.
 let AddedComplexity = 400 in {
 
@@ -3679,6 +3737,20 @@ let AddedComplexity = 400 in {
     def : Pat<(v4f32 (build_vector DblToFlt.A0, DblToFlt.A1,
                                    DblToFlt.B0, DblToFlt.B1)),
               (v4f32 (VMRGEW MrgFP.ABhToFlt, MrgFP.ABlToFlt))>;
+
+    // Convert 4 doubles to a vector of ints.
+    def : Pat<(v4i32 (build_vector DblToInt.A, DblToInt.B,
+                                   DblToInt.C, DblToInt.D)),
+              (v4i32 (VMRGEW MrgWords.CVACS, MrgWords.CVBDS))>;
+    def : Pat<(v4i32 (build_vector DblToUInt.A, DblToUInt.B,
+                                   DblToUInt.C, DblToUInt.D)),
+              (v4i32 (VMRGEW MrgWords.CVACU, MrgWords.CVBDU))>;
+    def : Pat<(v4i32 (build_vector ExtDbl.A0S, ExtDbl.A1S,
+                                   ExtDbl.B0S, ExtDbl.B1S)),
+              (v4i32 (VMRGEW MrgWords.CVA0B0S, MrgWords.CVA1B1S))>;
+    def : Pat<(v4i32 (build_vector ExtDbl.A0U, ExtDbl.A1U,
+                                   ExtDbl.B0U, ExtDbl.B1U)),
+              (v4i32 (VMRGEW MrgWords.CVA0B0U, MrgWords.CVA1B1U))>;
   }
 
   let Predicates = [IsLittleEndian, HasVSX] in {
@@ -3693,6 +3765,20 @@ let AddedComplexity = 400 in {
     def : Pat<(v4f32 (build_vector DblToFlt.A0, DblToFlt.A1,
                                    DblToFlt.B0, DblToFlt.B1)),
               (v4f32 (VMRGEW MrgFP.BAhToFlt, MrgFP.BAlToFlt))>;
+
+    // Convert 4 doubles to a vector of ints.
+    def : Pat<(v4i32 (build_vector DblToInt.A, DblToInt.B,
+                                   DblToInt.C, DblToInt.D)),
+              (v4i32 (VMRGEW MrgWords.CVDBS, MrgWords.CVCAS))>;
+    def : Pat<(v4i32 (build_vector DblToUInt.A, DblToUInt.B,
+                                   DblToUInt.C, DblToUInt.D)),
+              (v4i32 (VMRGEW MrgWords.CVDBU, MrgWords.CVCAU))>;
+    def : Pat<(v4i32 (build_vector ExtDbl.A0S, ExtDbl.A1S,
+                                   ExtDbl.B0S, ExtDbl.B1S)),
+              (v4i32 (VMRGEW MrgWords.CVB1A1S, MrgWords.CVB0A0S))>;
+    def : Pat<(v4i32 (build_vector ExtDbl.A0U, ExtDbl.A1U,
+                                   ExtDbl.B0U, ExtDbl.B1U)),
+              (v4i32 (VMRGEW MrgWords.CVB1A1U, MrgWords.CVB0A0U))>;
   }
 
   let Predicates = [HasDirectMove] in {

Modified: projects/clang700-import/contrib/llvm/lib/Target/X86/X86FastISel.cpp
==============================================================================
--- projects/clang700-import/contrib/llvm/lib/Target/X86/X86FastISel.cpp	Sat Aug  4 13:16:20 2018	(r337308)
+++ projects/clang700-import/contrib/llvm/lib/Target/X86/X86FastISel.cpp	Sat Aug  4 13:25:25 2018	(r337309)
@@ -738,6 +738,10 @@ bool X86FastISel::handleConstantAddresses(const Value 
     if (GV->isThreadLocal())
       return false;
 
+    // Can't handle !absolute_symbol references yet.
+    if (GV->isAbsoluteSymbolRef())
+      return false;
+
     // RIP-relative addresses can't have additional register operands, so if
     // we've already folded stuff into the addressing mode, just force the
     // global value into its own register, which we can use as the basereg.

Modified: projects/clang700-import/contrib/llvm/tools/llvm-ar/llvm-ar.cpp
==============================================================================
--- projects/clang700-import/contrib/llvm/tools/llvm-ar/llvm-ar.cpp	Sat Aug  4 13:16:20 2018	(r337308)
+++ projects/clang700-import/contrib/llvm/tools/llvm-ar/llvm-ar.cpp	Sat Aug  4 13:25:25 2018	(r337309)
@@ -63,46 +63,44 @@ OPTIONS:
 )";
 
 const char ArHelp[] = R"(
-OVERVIEW: LLVM Archiver (llvm-ar)
+OVERVIEW: LLVM Archiver
 
-  This program archives bitcode files into single libraries
+USAGE: llvm-ar [options] [-]<operation>[modifiers] [relpos] <archive> [files]
+       llvm-ar -M [<mri-script]
 
-USAGE: llvm-ar [options] [relpos] [count] <archive-file> [members]...
-
 OPTIONS:
-  -M                                -
-  -format                           - Archive format to create
-    =default                        -   default
-    =gnu                            -   gnu
-    =darwin                         -   darwin
-    =bsd                            -   bsd
-  -plugin=<string>                  - plugin (ignored for compatibility
-  -help                             - Display available options
-  -version                          - Display the version of this program
+  --format              - Archive format to create
+    =default            -   default
+    =gnu                -   gnu
+    =darwin             -   darwin
+    =bsd                -   bsd
+  --plugin=<string>     - Ignored for compatibility
+  --help                - Display available options
+  --version             - Display the version of this program
 
 OPERATIONS:
-  d[NsS]       - delete file(s) from the archive
-  m[abiSs]     - move file(s) in the archive
-  p[kN]        - print file(s) found in the archive
-  q[ufsS]      - quick append file(s) to the archive
-  r[abfiuRsS]  - replace or insert file(s) into the archive
-  t            - display contents of archive
-  x[No]        - extract file(s) from the archive
+  d - delete [files] from the archive
+  m - move [files] in the archive
+  p - print [files] found in the archive
+  q - quick append [files] to the archive
+  r - replace or insert [files] into the archive
+  s - act as ranlib
+  t - display contents of archive
+  x - extract [files] from the archive
 
-MODIFIERS (operation specific):
-  [a] - put file(s) after [relpos]
-  [b] - put file(s) before [relpos] (same as [i])
+MODIFIERS:
+  [a] - put [files] after [relpos]
+  [b] - put [files] before [relpos] (same as [i])
+  [c] - do not warn if archive had to be created
   [D] - use zero for timestamps and uids/gids (default)
-  [i] - put file(s) before [relpos] (same as [b])
+  [i] - put [files] before [relpos] (same as [b])
+  [l] - ignored for compatibility
   [o] - preserve original dates
   [s] - create an archive index (cf. ranlib)
   [S] - do not build a symbol table
   [T] - create a thin archive
-  [u] - update only files newer than archive contents
+  [u] - update only [files] newer than archive contents
   [U] - use actual timestamps and uids/gids
-
-MODIFIERS (generic):
-  [c] - do not warn if the library had to be created
   [v] - be verbose about actions taken
 )";
 



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