[llvm-exegesis] Add uop computation for more X87 instruction classes.

Summary:
This allows measuring comparisons (UCOM_FpIr32,UCOM_Fpr32,...),
conditional moves (CMOVBE_Fp32,...)

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48713

llvm-svn: 336352

1 files changed, 2 insertions, 8 deletions

diff --git a/llvm/tools/llvm-exegesis/lib/Uops.cpp b/llvm/tools/llvm-exegesis/lib/Uops.cpp
index 0125b6cb099..897f1080888 100644
--- a/llvm/tools/llvm-exegesis/lib/Uops.cpp
+++ b/llvm/tools/llvm-exegesis/lib/Uops.cpp
@@ -139,16 +139,10 @@ UopsBenchmarkRunner::generatePrototype(unsigned Opcode) const {
   const Instruction Instr(InstrDesc, RATC);
   const AliasingConfigurations SelfAliasing(Instr, Instr);
   if (SelfAliasing.empty()) {
-    SnippetPrototype Prototype;
-    Prototype.Explanation = "instruction is parallel, repeating a random one.";
-    Prototype.Snippet.emplace_back(Instr);
-    return std::move(Prototype);
+    return generateUnconstrainedPrototype(Instr, "instruction is parallel");
   }
   if (SelfAliasing.hasImplicitAliasing()) {
-    SnippetPrototype Prototype;
-    Prototype.Explanation = "instruction is serial, repeating a random one.";
-    Prototype.Snippet.emplace_back(Instr);
-    return std::move(Prototype);
+    return generateUnconstrainedPrototype(Instr, "instruction is serial");
   }
   const auto TiedVariables = getTiedVariables(Instr);
   if (!TiedVariables.empty()) {