[PATCH] D73083: [llvm-exegesis] Add support for AVX512 explicit rounding operands.

[Clement Courbet via Phabricator via llvm-commits]

courbet created this revision.
courbet added a reviewer: gchatelet.
Herald added subscribers: mstojanovic, tschuett.
Herald added a project: LLVM.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D73083

Files:
  llvm/tools/llvm-exegesis/lib/X86/Target.cpp
  llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp


Index: llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp
===================================================================
--- llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp
+++ llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp
@@ -198,6 +198,22 @@
   }
 }
 
+TEST_F(LatencySnippetGeneratorTest, VCVTUSI642SDZrrb_Int) {
+  // - VCVTUSI642SDZrrb_Int
+  // - Op0 Explicit Def RegClass(VR128X)
+  // - Op1 Explicit Use RegClass(VR128X)
+  // - Op2 Explicit Use STATIC_ROUNDING
+  // - Op2 Explicit Use RegClass(GR64)
+  // - Op4 Implicit Use Reg(MXSCR)
+  const unsigned Opcode = X86::VCVTUSI642SDZrrb_Int;
+  const Instruction &Instr = State.getIC().getInstr(Opcode);
+  const auto Configs = *Generator.generateConfigurations(Instr, State.getRATC().emptyRegisters());
+  ASSERT_THAT(Configs, SizeIs(1));
+  const BenchmarkCode& BC = Configs[0];
+  ASSERT_THAT(BC.Key.Instructions, SizeIs(1));
+  ASSERT_TRUE(BC.Key.Instructions[0].getOperand(3).isImm());
+}
+
 TEST_F(UopsSnippetGeneratorTest, ParallelInstruction) {
   // - BNDCL32rr
   // - Op0 Explicit Use RegClass(BNDR)
Index: llvm/tools/llvm-exegesis/lib/X86/Target.cpp
===================================================================
--- llvm/tools/llvm-exegesis/lib/X86/Target.cpp
+++ llvm/tools/llvm-exegesis/lib/X86/Target.cpp
@@ -636,6 +636,10 @@
 
   const Operand &Op = Instr.getPrimaryOperand(Var);
   switch (Op.getExplicitOperandInfo().OperandType) {
+  case X86::OperandType::OPERAND_ROUNDING_CONTROL:
+    AssignedValue =
+        MCOperand::createImm(randomIndex(X86::STATIC_ROUNDING::NO_EXC));
+    break;
   case X86::OperandType::OPERAND_COND_CODE:
     AssignedValue =
         MCOperand::createImm(randomIndex(X86::CondCode::LAST_VALID_COND));


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