[llvm] r330263 - [llvm-exegesis] Early out if the scheduler models have no extra info.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Wed Apr 18 07:46:54 2018
New Revision: 330263

URL: http://llvm.org/viewvc/llvm-project?rev=330263&view=rev
Log:
[llvm-exegesis] Early out if the scheduler models have no extra info.

We were calling getExtraProcessorInfo() without checking hasExtraProcessorInfo(), resulting in an assertion.

Modified:
    llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp

Modified: llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp?rev=330263&r1=330262&r2=330263&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp (original)
+++ llvm/trunk/tools/llvm-exegesis/llvm-exegesis.cpp Wed Apr 18 07:46:54 2018
@@ -57,7 +57,7 @@ namespace exegesis {
 void main() {
   if (OpcodeName.empty() == (OpcodeIndex == 0)) {
     llvm::report_fatal_error(
-        "please provide one and only one of 'opcode-index' or 'opcode-name' ");
+        "please provide one and only one of 'opcode-index' or 'opcode-name'");
   }
 
   llvm::InitializeNativeTarget();
@@ -68,6 +68,9 @@ void main() {
 
   const LLVMState State;
 
+  if (!State.getSubtargetInfo().getSchedModel().hasExtraProcessorInfo())
+    llvm::report_fatal_error("sched model is missing extra processor info!");
+
   unsigned Opcode = OpcodeIndex;
   if (Opcode == 0) {
     // Resolve opcode name -> opcode.