[llvm-exegesis] Ignore X86 pseudo instructions.
Summary: They do not lower to actual MCInsts and have no scheduling info.
Reviewers: gchatelet
Subscribers: llvm-commits, tschuett
Differential Revision: https://reviews.llvm.org/D54147
llvm-svn: 346227
diff --git a/llvm/tools/llvm-exegesis/lib/X86/Target.cpp b/llvm/tools/llvm-exegesis/lib/X86/Target.cpp
index 6ae228e..b74d5dc 100644
--- a/llvm/tools/llvm-exegesis/lib/X86/Target.cpp
+++ b/llvm/tools/llvm-exegesis/lib/X86/Target.cpp
@@ -75,6 +75,9 @@
static llvm::Error IsInvalidOpcode(const Instruction &Instr) {
const auto OpcodeName = Instr.Name;
+ if ((Instr.Description->TSFlags & X86II::FormMask) == X86II::Pseudo)
+ return llvm::make_error<BenchmarkFailure>(
+ "unsupported opcode: pseudo instruction");
if (OpcodeName.startswith("POPF") || OpcodeName.startswith("PUSHF") ||
OpcodeName.startswith("ADJCALLSTACK"))
return llvm::make_error<BenchmarkFailure>(