[MC][TableGen] Add optional libpfm counter names for ProcResUnits.

Summary:
Subtargets can define the libpfm counter names that can be used to
measure cycles and uops issued on ProcResUnits.
This allows making llvm-exegesis available on more targets.
Fixes PR36984.

Reviewers: gchatelet, RKSimon, andreadb, craig.topper

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45360

1 files changed, 71 insertions, 0 deletions

diff --git a/llvm/lib/Target/X86/X86PfmCounters.td b/llvm/lib/Target/X86/X86PfmCounters.td
new file mode 100644
index 00000000000..99def98c9f6
--- /dev/null
+++ b/llvm/lib/Target/X86/X86PfmCounters.td
@@ -0,0 +1,71 @@
+//===-- X86PfmCounters.td - X86 Hardware Counters ----------*- tablegen -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This describes the available hardware counters for various subtargets.
+//
+//===----------------------------------------------------------------------===//
+
+let SchedModel = SandyBridgeModel in {
+def SBCycleCounter : PfmCycleCounter<"unhalted_core_cycles">;
+def SBPort0Counter : PfmIssueCounter<SBPort0, ["uops_dispatched_port:port_0"]>;
+def SBPort1Counter : PfmIssueCounter<SBPort1, ["uops_dispatched_port:port_1"]>;
+def SBPort23Counter : PfmIssueCounter<SBPort23,
+                                      ["uops_dispatched_port:port_2",
+				       "uops_dispatched_port:port_3"]>;
+def SBPort4Counter : PfmIssueCounter<SBPort4, ["uops_dispatched_port:port_4"]>;
+def SBPort5Counter : PfmIssueCounter<SBPort5, ["uops_dispatched_port:port_5"]>;
+}
+
+let SchedModel = HaswellModel in {
+def HWCycleCounter : PfmCycleCounter<"unhalted_core_cycles">;
+def HWPort0Counter : PfmIssueCounter<HWPort0, ["uops_dispatched_port:port_0"]>;
+def HWPort1Counter : PfmIssueCounter<HWPort1, ["uops_dispatched_port:port_1"]>;
+def HWPort2Counter : PfmIssueCounter<HWPort2, ["uops_dispatched_port:port_2"]>;
+def HWPort3Counter : PfmIssueCounter<HWPort3, ["uops_dispatched_port:port_3"]>;
+def HWPort4Counter : PfmIssueCounter<HWPort4, ["uops_dispatched_port:port_4"]>;
+def HWPort5Counter : PfmIssueCounter<HWPort5, ["uops_dispatched_port:port_5"]>;
+def HWPort6Counter : PfmIssueCounter<HWPort6, ["uops_dispatched_port:port_6"]>;
+def HWPort7Counter : PfmIssueCounter<HWPort7, ["uops_dispatched_port:port_7"]>;
+}
+
+let SchedModel = BroadwellModel in {
+def BWCycleCounter : PfmCycleCounter<"unhalted_core_cycles">;
+def BWPort0Counter : PfmIssueCounter<BWPort0, ["uops_dispatched_port:port_0"]>;
+def BWPort1Counter : PfmIssueCounter<BWPort1, ["uops_dispatched_port:port_1"]>;
+def BWPort2Counter : PfmIssueCounter<BWPort2, ["uops_dispatched_port:port_2"]>;
+def BWPort3Counter : PfmIssueCounter<BWPort3, ["uops_dispatched_port:port_3"]>;
+def BWPort4Counter : PfmIssueCounter<BWPort4, ["uops_dispatched_port:port_4"]>;
+def BWPort5Counter : PfmIssueCounter<BWPort5, ["uops_dispatched_port:port_5"]>;
+def BWPort6Counter : PfmIssueCounter<BWPort6, ["uops_dispatched_port:port_6"]>;
+def BWPort7Counter : PfmIssueCounter<BWPort7, ["uops_dispatched_port:port_7"]>;
+}
+
+let SchedModel = SkylakeClientModel in {
+def SKLCycleCounter : PfmCycleCounter<"unhalted_core_cycles">;
+def SKLPort0Counter : PfmIssueCounter<SKLPort0, ["uops_dispatched_port:port_0"]>;
+def SKLPort1Counter : PfmIssueCounter<SKLPort1, ["uops_dispatched_port:port_1"]>;
+def SKLPort2Counter : PfmIssueCounter<SKLPort2, ["uops_dispatched_port:port_2"]>;
+def SKLPort3Counter : PfmIssueCounter<SKLPort3, ["uops_dispatched_port:port_3"]>;
+def SKLPort4Counter : PfmIssueCounter<SKLPort4, ["uops_dispatched_port:port_4"]>;
+def SKLPort5Counter : PfmIssueCounter<SKLPort5, ["uops_dispatched_port:port_5"]>;
+def SKLPort6Counter : PfmIssueCounter<SKLPort6, ["uops_dispatched_port:port_6"]>;
+def SKLPort7Counter : PfmIssueCounter<SKLPort7, ["uops_dispatched_port:port_7"]>;
+}
+
+let SchedModel = SkylakeServerModel in {
+def SKXCycleCounter : PfmCycleCounter<"unhalted_core_cycles">;
+def SKXPort0Counter : PfmIssueCounter<SKXPort0, ["uops_dispatched_port:port_0"]>;
+def SKXPort1Counter : PfmIssueCounter<SKXPort1, ["uops_dispatched_port:port_1"]>;
+def SKXPort2Counter : PfmIssueCounter<SKXPort2, ["uops_dispatched_port:port_2"]>;
+def SKXPort3Counter : PfmIssueCounter<SKXPort3, ["uops_dispatched_port:port_3"]>;
+def SKXPort4Counter : PfmIssueCounter<SKXPort4, ["uops_dispatched_port:port_4"]>;
+def SKXPort5Counter : PfmIssueCounter<SKXPort5, ["uops_dispatched_port:port_5"]>;
+def SKXPort6Counter : PfmIssueCounter<SKXPort6, ["uops_dispatched_port:port_6"]>;
+def SKXPort7Counter : PfmIssueCounter<SKXPort7, ["uops_dispatched_port:port_7"]>;
+}