[llvm] 9404d44 - [llvm-stress] Support opaque pointers

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2022-03-03T09:59:06+01:00
New Revision: 9404d4429921f568fd60eee8f1975a94b8c3f67a

URL: https://github.com/llvm/llvm-project/commit/9404d4429921f568fd60eee8f1975a94b8c3f67a
DIFF: https://github.com/llvm/llvm-project/commit/9404d4429921f568fd60eee8f1975a94b8c3f67a.diff

LOG: [llvm-stress] Support opaque pointers

With opaque pointers, generate the load/store type independently
of the pointer type.

Added: 
    

Modified: 
    llvm/tools/llvm-stress/llvm-stress.cpp

Removed: 
    


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diff  --git a/llvm/tools/llvm-stress/llvm-stress.cpp b/llvm/tools/llvm-stress/llvm-stress.cpp
index 9135d60fdf925..46eb8c7026637 100644
--- a/llvm/tools/llvm-stress/llvm-stress.cpp
+++ b/llvm/tools/llvm-stress/llvm-stress.cpp
@@ -347,8 +347,10 @@ struct LoadModifier: public Modifier {
   void Act() override {
     // Try to use predefined pointers. If non-exist, use undef pointer value;
     Value *Ptr = getRandomPointerValue();
-    Value *V = new LoadInst(Ptr->getType()->getPointerElementType(), Ptr, "L",
-                            BB->getTerminator());
+    Type *Ty = Ptr->getType()->isOpaquePointerTy()
+                   ? pickType()
+                   : Ptr->getType()->getNonOpaquePointerElementType();
+    Value *V = new LoadInst(Ty, Ptr, "L", BB->getTerminator());
     PT->push_back(V);
   }
 };
@@ -360,14 +362,16 @@ struct StoreModifier: public Modifier {
   void Act() override {
     // Try to use predefined pointers. If non-exist, use undef pointer value;
     Value *Ptr = getRandomPointerValue();
-    Value *Val = getRandomValue(Ptr->getType()->getPointerElementType());
-    Type  *ValTy = Val->getType();
+    Type *ValTy = Ptr->getType()->isOpaquePointerTy()
+                      ? pickType()
+                      : Ptr->getType()->getNonOpaquePointerElementType();
 
     // Do not store vectors of i1s because they are unsupported
     // by the codegen.
     if (ValTy->isVectorTy() && ValTy->getScalarSizeInBits() == 1)
       return;
 
+    Value *Val = getRandomValue(ValTy);
     new StoreInst(Val, Ptr, BB->getTerminator());
   }
 };