[llvm] 6a55aa5 - [CodeGen] Print invalid instead of crashing when dumping invalid MVT

[Philip Reames via llvm-commits]

Author: Philip Reames
Date: 2023-08-31T11:01:34-07:00
New Revision: 6a55aa5ff3c376f21bd2a88ad6fb5e86b641ba1b

URL: https://github.com/llvm/llvm-project/commit/6a55aa5ff3c376f21bd2a88ad6fb5e86b641ba1b
DIFF: https://github.com/llvm/llvm-project/commit/6a55aa5ff3c376f21bd2a88ad6fb5e86b641ba1b.diff

LOG: [CodeGen] Print invalid instead of crashing when dumping invalid MVT

Added: 
    

Modified: 
    llvm/lib/CodeGen/ValueTypes.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/ValueTypes.cpp b/llvm/lib/CodeGen/ValueTypes.cpp
index d514e1642e29d7..2d16ff2dfb2fbf 100644
--- a/llvm/lib/CodeGen/ValueTypes.cpp
+++ b/llvm/lib/CodeGen/ValueTypes.cpp
@@ -637,6 +637,9 @@ void MVT::dump() const {
 #endif
 
 void MVT::print(raw_ostream &OS) const {
-  OS << EVT(*this).getEVTString();
+  if (SimpleTy == INVALID_SIMPLE_VALUE_TYPE)
+    OS << "invalid";
+  else
+    OS << EVT(*this).getEVTString();
 }