[llvm] r314223 - [NVPTX] added match.{any, all}.sync instructions, intrinsics & builtins.

Artem Belevich via llvm-commits llvm-commits at lists.llvm.org
Tue Sep 26 10:07:23 PDT 2017


Author: tra
Date: Tue Sep 26 10:07:23 2017
New Revision: 314223

URL: http://llvm.org/viewvc/llvm-project?rev=314223&view=rev
Log:
[NVPTX] added match.{any,all}.sync instructions, intrinsics & builtins.

Differential Revision: https://reviews.llvm.org/D38191

Added:
    llvm/trunk/test/CodeGen/NVPTX/match.ll
Modified:
    llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td
    llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
    llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.h
    llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td
    llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td

Modified: llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td?rev=314223&r1=314222&r2=314223&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td (original)
+++ llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td Tue Sep 26 10:07:23 2017
@@ -3842,4 +3842,31 @@ def int_nvvm_vote_ballot_sync :
             [IntrNoMem, IntrConvergent], "llvm.nvvm.vote.ballot.sync">,
   GCCBuiltin<"__nvvm_vote_ballot_sync">;
 
+//
+// MATCH.SYNC
+//
+// match.any.sync.b32 mask, value
+def int_nvvm_match_any_sync_i32 :
+  Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+            [IntrNoMem, IntrConvergent], "llvm.nvvm.match.any.sync.i32">,
+  GCCBuiltin<"__nvvm_match_any_sync_i32">;
+// match.any.sync.b64 mask, value
+def int_nvvm_match_any_sync_i64 :
+  Intrinsic<[llvm_i64_ty], [llvm_i32_ty, llvm_i64_ty],
+            [IntrNoMem, IntrConvergent], "llvm.nvvm.match.any.sync.i64">,
+  GCCBuiltin<"__nvvm_match_any_sync_i64">;
+
+// match.all instruction have two variants -- one returns a single value, another
+// returns a pair {value, predicate}. We currently only implement the latter as
+// that's the variant exposed by CUDA API.
+
+// match.all.sync.b32p mask, value
+def int_nvvm_match_all_sync_i32p :
+  Intrinsic<[llvm_i32_ty, llvm_i1_ty], [llvm_i32_ty, llvm_i32_ty],
+            [IntrNoMem, IntrConvergent], "llvm.nvvm.match.all.sync.i32p">;
+// match.all.sync.b64p mask, value
+def int_nvvm_match_all_sync_i64p :
+  Intrinsic<[llvm_i64_ty, llvm_i1_ty], [llvm_i32_ty, llvm_i64_ty],
+            [IntrNoMem, IntrConvergent], "llvm.nvvm.match.all.sync.i64p">;
+
 } // let TargetPrefix = "nvvm"

Modified: llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp?rev=314223&r1=314222&r2=314223&view=diff
==============================================================================
--- llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp Tue Sep 26 10:07:23 2017
@@ -715,6 +715,10 @@ bool NVPTXDAGToDAGISel::tryIntrinsicNoCh
   case Intrinsic::nvvm_texsurf_handle_internal:
     SelectTexSurfHandle(N);
     return true;
+  case Intrinsic::nvvm_match_all_sync_i32p:
+  case Intrinsic::nvvm_match_all_sync_i64p:
+    SelectMatchAll(N);
+    return true;
   }
 }
 
@@ -726,6 +730,36 @@ void NVPTXDAGToDAGISel::SelectTexSurfHan
                                         MVT::i64, GlobalVal));
 }
 
+void NVPTXDAGToDAGISel::SelectMatchAll(SDNode *N) {
+  SDLoc DL(N);
+  enum { IS_I64 = 4, HAS_CONST_VALUE = 2, HAS_CONST_MASK = 1 };
+  unsigned IID = cast<ConstantSDNode>(N->getOperand(0))->getZExtValue();
+  unsigned OpcodeIndex =
+      (IID == Intrinsic::nvvm_match_all_sync_i64p) ? IS_I64 : 0;
+  SDValue MaskOp = N->getOperand(1);
+  SDValue ValueOp = N->getOperand(2);
+  if (ConstantSDNode *ValueConst = dyn_cast<ConstantSDNode>(ValueOp)) {
+    OpcodeIndex |= HAS_CONST_VALUE;
+    ValueOp = CurDAG->getTargetConstant(ValueConst->getZExtValue(), DL,
+                                        ValueConst->getValueType(0));
+  }
+  if (ConstantSDNode *MaskConst = dyn_cast<ConstantSDNode>(MaskOp)) {
+    OpcodeIndex |= HAS_CONST_MASK;
+    MaskOp = CurDAG->getTargetConstant(MaskConst->getZExtValue(), DL,
+                                       MaskConst->getValueType(0));
+  }
+  // Maps {IS_I64, HAS_CONST_VALUE, HAS_CONST_MASK} -> opcode
+  unsigned Opcodes[8] = {
+      NVPTX::MATCH_ALLP_SYNC_32rr, NVPTX::MATCH_ALLP_SYNC_32ri,
+      NVPTX::MATCH_ALLP_SYNC_32ir, NVPTX::MATCH_ALLP_SYNC_32ii,
+      NVPTX::MATCH_ALLP_SYNC_64rr, NVPTX::MATCH_ALLP_SYNC_64ri,
+      NVPTX::MATCH_ALLP_SYNC_64ir, NVPTX::MATCH_ALLP_SYNC_64ii};
+  SDNode *NewNode = CurDAG->getMachineNode(Opcodes[OpcodeIndex], DL,
+                                           {ValueOp->getValueType(0), MVT::i1},
+                                           {MaskOp, ValueOp});
+  ReplaceNode(N, NewNode);
+}
+
 void NVPTXDAGToDAGISel::SelectAddrSpaceCast(SDNode *N) {
   SDValue Src = N->getOperand(0);
   AddrSpaceCastSDNode *CastN = cast<AddrSpaceCastSDNode>(N);

Modified: llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.h?rev=314223&r1=314222&r2=314223&view=diff
==============================================================================
--- llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.h (original)
+++ llvm/trunk/lib/Target/NVPTX/NVPTXISelDAGToDAG.h Tue Sep 26 10:07:23 2017
@@ -58,6 +58,7 @@ private:
   bool tryIntrinsicNoChain(SDNode *N);
   bool tryIntrinsicChain(SDNode *N);
   void SelectTexSurfHandle(SDNode *N);
+  void SelectMatchAll(SDNode *N);
   bool tryLoad(SDNode *N);
   bool tryLoadVector(SDNode *N);
   bool tryLDGLDU(SDNode *N);

Modified: llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td?rev=314223&r1=314222&r2=314223&view=diff
==============================================================================
--- llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td (original)
+++ llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td Tue Sep 26 10:07:23 2017
@@ -158,6 +158,7 @@ def hasPTX31 : Predicate<"Subtarget->get
 def hasPTX60 : Predicate<"Subtarget->getPTXVersion() >= 60">;
 
 def hasSM30 : Predicate<"Subtarget->getSmVersion() >= 30">;
+def hasSM70 : Predicate<"Subtarget->getSmVersion() >= 70">;
 
 def useFP16Math: Predicate<"Subtarget->allowFP16Math()">;
 

Modified: llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td?rev=314223&r1=314222&r2=314223&view=diff
==============================================================================
--- llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td (original)
+++ llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td Tue Sep 26 10:07:23 2017
@@ -247,6 +247,63 @@ defm VOTE_SYNC_ANY : VOTE_SYNC<Int1Regs,
 defm VOTE_SYNC_UNI : VOTE_SYNC<Int1Regs, "uni.pred", int_nvvm_vote_uni_sync>;
 defm VOTE_SYNC_BALLOT : VOTE_SYNC<Int32Regs, "ballot.b32", int_nvvm_vote_ballot_sync>;
 
+multiclass MATCH_ANY_SYNC<NVPTXRegClass regclass, string ptxtype, Intrinsic IntOp,
+                          Operand ImmOp> {
+  def ii : NVPTXInst<(outs regclass:$dest), (ins i32imm:$mask, ImmOp:$value),
+              "match.any.sync." # ptxtype # " \t$dest, $value, $mask;",
+              [(set regclass:$dest, (IntOp imm:$mask, imm:$value))]>,
+           Requires<[hasPTX60, hasSM70]>;
+  def ir : NVPTXInst<(outs regclass:$dest), (ins Int32Regs:$mask, ImmOp:$value),
+              "match.any.sync." # ptxtype # " \t$dest, $value, $mask;",
+              [(set regclass:$dest, (IntOp Int32Regs:$mask, imm:$value))]>,
+           Requires<[hasPTX60, hasSM70]>;
+  def ri : NVPTXInst<(outs regclass:$dest), (ins i32imm:$mask, regclass:$value),
+              "match.any.sync." # ptxtype # " \t$dest, $value, $mask;",
+              [(set regclass:$dest, (IntOp imm:$mask, regclass:$value))]>,
+           Requires<[hasPTX60, hasSM70]>;
+  def rr : NVPTXInst<(outs regclass:$dest), (ins Int32Regs:$mask, regclass:$value),
+              "match.any.sync." # ptxtype # " \t$dest, $value, $mask;",
+              [(set regclass:$dest, (IntOp Int32Regs:$mask, regclass:$value))]>,
+           Requires<[hasPTX60, hasSM70]>;
+}
+
+defm MATCH_ANY_SYNC_32 : MATCH_ANY_SYNC<Int32Regs, "b32", int_nvvm_match_any_sync_i32,
+                                        i32imm>;
+defm MATCH_ANY_SYNC_64 : MATCH_ANY_SYNC<Int64Regs, "b64", int_nvvm_match_any_sync_i64,
+                                        i64imm>;
+
+multiclass MATCH_ALLP_SYNC<NVPTXRegClass regclass, string ptxtype, Intrinsic IntOp,
+                          Operand ImmOp> {
+  def ii : NVPTXInst<(outs regclass:$dest, Int1Regs:$pred),
+                     (ins i32imm:$mask, ImmOp:$value),
+              "match.all.sync." # ptxtype # " \t$dest|$pred, $value, $mask;",
+              // If would be nice if tablegen could match multiple return values,
+              // but it does not seem to be the case. Thus we have an empty pattern and
+              // lower intrinsic to instruction manually.
+              // [(set regclass:$dest, Int1Regs:$pred, (IntOp imm:$value, imm:$mask))]>,
+              []>,
+           Requires<[hasPTX60, hasSM70]>;
+  def ir : NVPTXInst<(outs regclass:$dest, Int1Regs:$pred),
+                     (ins Int32Regs:$mask, ImmOp:$value),
+              "match.all.sync." # ptxtype # " \t$dest|$pred, $value, $mask;",
+              []>,
+           Requires<[hasPTX60, hasSM70]>;
+  def ri : NVPTXInst<(outs regclass:$dest, Int1Regs:$pred),
+                     (ins i32imm:$mask, regclass:$value),
+              "match.all.sync." # ptxtype # " \t$dest|$pred, $value, $mask;",
+              []>,
+           Requires<[hasPTX60, hasSM70]>;
+  def rr : NVPTXInst<(outs regclass:$dest, Int1Regs:$pred),
+                     (ins Int32Regs:$mask, regclass:$value),
+              "match.all.sync." # ptxtype # " \t$dest|$pred, $value, $mask;",
+              []>,
+           Requires<[hasPTX60, hasSM70]>;
+}
+defm MATCH_ALLP_SYNC_32 : MATCH_ALLP_SYNC<Int32Regs, "b32", int_nvvm_match_all_sync_i32p,
+                                         i32imm>;
+defm MATCH_ALLP_SYNC_64 : MATCH_ALLP_SYNC<Int64Regs, "b64", int_nvvm_match_all_sync_i64p,
+                                         i64imm>;
+
 } // isConvergent = 1
 
 //-----------------------------------

Added: llvm/trunk/test/CodeGen/NVPTX/match.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/NVPTX/match.ll?rev=314223&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/NVPTX/match.ll (added)
+++ llvm/trunk/test/CodeGen/NVPTX/match.ll Tue Sep 26 10:07:23 2017
@@ -0,0 +1,117 @@
+; RUN: llc < %s -march=nvptx64 -mcpu=sm_70 -mattr=+ptx60 | FileCheck %s
+
+declare i32 @llvm.nvvm.match.any.sync.i32(i32, i32)
+declare i64 @llvm.nvvm.match.any.sync.i64(i32, i64)
+
+; CHECK-LABEL: .func{{.*}}match.any.sync.i32
+define i32 @match.any.sync.i32(i32 %mask, i32 %value) {
+  ; CHECK: ld.param.u32 	[[MASK:%r[0-9]+]], [match.any.sync.i32_param_0];
+  ; CHECK: ld.param.u32 	[[VALUE:%r[0-9]+]], [match.any.sync.i32_param_1];
+
+  ; CHECK:  match.any.sync.b32  [[V0:%r[0-9]+]], [[VALUE]], [[MASK]];
+  %v0 = call i32 @llvm.nvvm.match.any.sync.i32(i32 %mask, i32 %value)
+  ; CHECK:  match.any.sync.b32  [[V1:%r[0-9]+]], [[VALUE]], 1;
+  %v1 = call i32 @llvm.nvvm.match.any.sync.i32(i32 1, i32 %value)
+  ; CHECK:  match.any.sync.b32  [[V2:%r[0-9]+]], 2, [[MASK]];
+  %v2 = call i32 @llvm.nvvm.match.any.sync.i32(i32 %mask, i32 2)
+  ; CHECK:  match.any.sync.b32  [[V3:%r[0-9]+]], 4, 3;
+  %v3 = call i32 @llvm.nvvm.match.any.sync.i32(i32 3, i32 4)
+  %sum1 = add i32 %v0, %v1
+  %sum2 = add i32 %v2, %v3
+  %sum3 = add i32 %sum1, %sum2
+  ret i32 %sum3;
+}
+
+; CHECK-LABEL: .func{{.*}}match.any.sync.i64
+define i64 @match.any.sync.i64(i32 %mask, i64 %value) {
+  ; CHECK: ld.param.u32 	[[MASK:%r[0-9]+]], [match.any.sync.i64_param_0];
+  ; CHECK: ld.param.u64 	[[VALUE:%rd[0-9]+]], [match.any.sync.i64_param_1];
+
+  ; CHECK:  match.any.sync.b64  [[V0:%rd[0-9]+]], [[VALUE]], [[MASK]];
+  %v0 = call i64 @llvm.nvvm.match.any.sync.i64(i32 %mask, i64 %value)
+  ; CHECK:  match.any.sync.b64  [[V1:%rd[0-9]+]], [[VALUE]], 1;
+  %v1 = call i64 @llvm.nvvm.match.any.sync.i64(i32 1, i64 %value)
+  ; CHECK:  match.any.sync.b64  [[V2:%rd[0-9]+]], 2, [[MASK]];
+  %v2 = call i64 @llvm.nvvm.match.any.sync.i64(i32 %mask, i64 2)
+  ; CHECK:  match.any.sync.b64  [[V3:%rd[0-9]+]], 4, 3;
+  %v3 = call i64 @llvm.nvvm.match.any.sync.i64(i32 3, i64 4)
+  %sum1 = add i64 %v0, %v1
+  %sum2 = add i64 %v2, %v3
+  %sum3 = add i64 %sum1, %sum2
+  ret i64 %sum3;
+}
+
+declare {i32, i1} @llvm.nvvm.match.all.sync.i32p(i32, i32)
+declare {i64, i1} @llvm.nvvm.match.all.sync.i64p(i32, i64)
+
+; CHECK-LABEL: .func{{.*}}match.all.sync.i32p(
+define {i32,i1} @match.all.sync.i32p(i32 %mask, i32 %value) {
+  ; CHECK: ld.param.u32 	[[MASK:%r[0-9]+]], [match.all.sync.i32p_param_0];
+  ; CHECK: ld.param.u32 	[[VALUE:%r[0-9]+]], [match.all.sync.i32p_param_1];
+
+  ; CHECK:  match.all.sync.b32 {{%r[0-9]+\|%p[0-9]+}}, [[VALUE]], [[MASK]];
+  %r1 = call {i32, i1} @llvm.nvvm.match.all.sync.i32p(i32 %mask, i32 %value)
+  %v1 = extractvalue {i32, i1} %r1, 0
+  %p1 = extractvalue {i32, i1} %r1, 1
+
+  ; CHECK:  match.all.sync.b32 {{%r[0-9]+\|%p[0-9]+}}, 1, [[MASK]];
+  %r2 = call {i32, i1} @llvm.nvvm.match.all.sync.i32p(i32 %mask, i32 1)
+  %v2 = extractvalue {i32, i1} %r2, 0
+  %p2 = extractvalue {i32, i1} %r2, 1
+
+  ; CHECK:  match.all.sync.b32 {{%r[0-9]+\|%p[0-9]+}}, [[VALUE]], 2;
+  %r3 = call {i32, i1} @llvm.nvvm.match.all.sync.i32p(i32 2, i32 %value)
+  %v3 = extractvalue {i32, i1} %r3, 0
+  %p3 = extractvalue {i32, i1} %r3, 1
+
+  ; CHECK:  match.all.sync.b32 {{%r[0-9]+\|%p[0-9]+}}, 4, 3;
+  %r4 = call {i32, i1} @llvm.nvvm.match.all.sync.i32p(i32 3, i32 4)
+  %v4 = extractvalue {i32, i1} %r4, 0
+  %p4 = extractvalue {i32, i1} %r4, 1
+
+  %vsum1 = add i32 %v1, %v2
+  %vsum2 = add i32 %v3, %v4
+  %vsum3 = add i32 %vsum1, %vsum2
+  %psum1 = add i1 %p1, %p2
+  %psum2 = add i1 %p3, %p4
+  %psum3 = add i1 %psum1, %psum2
+  %ret0 = insertvalue {i32, i1} undef, i32 %vsum3, 0
+  %ret1 = insertvalue {i32, i1} %ret0, i1 %psum3, 1
+  ret {i32, i1} %ret1;
+}
+
+; CHECK-LABEL: .func{{.*}}match.all.sync.i64p(
+define {i64,i1} @match.all.sync.i64p(i32 %mask, i64 %value) {
+  ; CHECK: ld.param.u32 	[[MASK:%r[0-9]+]], [match.all.sync.i64p_param_0];
+  ; CHECK: ld.param.u64 	[[VALUE:%rd[0-9]+]], [match.all.sync.i64p_param_1];
+
+  ; CHECK:  match.all.sync.b64 {{%rd[0-9]+\|%p[0-9]+}}, [[VALUE]], [[MASK]];
+  %r1 = call {i64, i1} @llvm.nvvm.match.all.sync.i64p(i32 %mask, i64 %value)
+  %v1 = extractvalue {i64, i1} %r1, 0
+  %p1 = extractvalue {i64, i1} %r1, 1
+
+  ; CHECK:  match.all.sync.b64 {{%rd[0-9]+\|%p[0-9]+}}, 1, [[MASK]];
+  %r2 = call {i64, i1} @llvm.nvvm.match.all.sync.i64p(i32 %mask, i64 1)
+  %v2 = extractvalue {i64, i1} %r2, 0
+  %p2 = extractvalue {i64, i1} %r2, 1
+
+  ; CHECK:  match.all.sync.b64 {{%rd[0-9]+\|%p[0-9]+}}, [[VALUE]], 2;
+  %r3 = call {i64, i1} @llvm.nvvm.match.all.sync.i64p(i32 2, i64 %value)
+  %v3 = extractvalue {i64, i1} %r3, 0
+  %p3 = extractvalue {i64, i1} %r3, 1
+
+  ; CHECK:  match.all.sync.b64 {{%rd[0-9]+\|%p[0-9]+}}, 4, 3;
+  %r4 = call {i64, i1} @llvm.nvvm.match.all.sync.i64p(i32 3, i64 4)
+  %v4 = extractvalue {i64, i1} %r4, 0
+  %p4 = extractvalue {i64, i1} %r4, 1
+
+  %vsum1 = add i64 %v1, %v2
+  %vsum2 = add i64 %v3, %v4
+  %vsum3 = add i64 %vsum1, %vsum2
+  %psum1 = add i1 %p1, %p2
+  %psum2 = add i1 %p3, %p4
+  %psum3 = add i1 %psum1, %psum2
+  %ret0 = insertvalue {i64, i1} undef, i64 %vsum3, 0
+  %ret1 = insertvalue {i64, i1} %ret0, i1 %psum3, 1
+  ret {i64, i1} %ret1;
+}




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