Disable copy prop on memory loads

UQ-PAC · Dec 10, 2024 · e3f1dba · e3f1dba
1 parent b05a4bf
commit e3f1dba
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Showing 5 changed files with 11,555 additions and 5,778 deletions.
diff --git a/libASL/transforms.ml b/libASL/transforms.ml
@@ -1289,7 +1289,7 @@ module CopyProp = struct
     | Expr_Var v -> true
     | Expr_Field (e,_) -> candidateExpr e
     | Expr_Array (e,_) -> candidateExpr e
-    | Expr_TApply (f,_,_) -> (name_of_FIdent f = "Mem.read")
+    (*| Expr_TApply (f,_,_) -> (name_of_FIdent f = "Mem.read")*)
     | _ -> false
 
   let candidateIdent (i: ident) =

diff --git a/tests/aslt/test_antlr.t b/tests/aslt/test_antlr.t
@@ -17,8 +17,10 @@ tests building and running of the antlr grammar. requires java
   (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Field ( (lexpr LExpr_Var ( (ident " PSTATE ") )) , (ident " N ") )) , (expr Expr_Slices ( (expr Expr_Var ( (ident " Cse0__5 ") )) , [ (slice Slice_LoWd ( (expr (integer 63)) , (expr (integer 1)) )) ] )) )))
   (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Array ( (lexpr LExpr_Var ( (ident " _R ") )) , (expr (integer 1)) )) , (expr Expr_Var ( (ident " Cse0__5 ") )) )))
   (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Var ( (ident " SP_EL0 ") )) , (expr Expr_TApply ( (ident " add_bits.0 ") , [ (targs (expr (integer 64))) ] , [ (expr Expr_Var ( (ident " SP_EL0 ") )) ; (expr (bits '1111111111111111111111111111111111111111111111111111111111100000')) ] )) )))
-  (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Array ( (lexpr LExpr_Var ( (ident " _R ") )) , (expr (integer 1)) )) , (expr Expr_TApply ( (ident " Mem.read.0 ") , [ (targs (expr (integer 8))) ] , [ (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 3)) )) ; (expr (integer 8)) ; (expr (integer 0)) ] )) )))
-  (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Array ( (lexpr LExpr_Var ( (ident " _R ") )) , (expr (integer 2)) )) , (expr Expr_TApply ( (ident " Mem.read.0 ") , [ (targs (expr (integer 8))) ] , [ (expr Expr_TApply ( (ident " add_bits.0 ") , [ (targs (expr (integer 64))) ] , [ (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 3)) )) ; (expr (bits '0000000000000000000000000000000000000000000000000000000000001000')) ] )) ; (expr (integer 8)) ; (expr (integer 0)) ] )) )))
+  (stmt (assignment_stmt Stmt_ConstDecl ( (type Type_Bits ( (expr (integer 64)) )) , (ident " Exp16__5 ") , (expr Expr_TApply ( (ident " Mem.read.0 ") , [ (targs (expr (integer 8))) ] , [ (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 3)) )) ; (expr (integer 8)) ; (expr (integer 0)) ] )) )))
+  (stmt (assignment_stmt Stmt_ConstDecl ( (type Type_Bits ( (expr (integer 64)) )) , (ident " Exp18__5 ") , (expr Expr_TApply ( (ident " Mem.read.0 ") , [ (targs (expr (integer 8))) ] , [ (expr Expr_TApply ( (ident " add_bits.0 ") , [ (targs (expr (integer 64))) ] , [ (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 3)) )) ; (expr (bits '0000000000000000000000000000000000000000000000000000000000001000')) ] )) ; (expr (integer 8)) ; (expr (integer 0)) ] )) )))
+  (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Array ( (lexpr LExpr_Var ( (ident " _R ") )) , (expr (integer 1)) )) , (expr Expr_Var ( (ident " Exp16__5 ") )) )))
+  (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Array ( (lexpr LExpr_Var ( (ident " _R ") )) , (expr (integer 2)) )) , (expr Expr_Var ( (ident " Exp18__5 ") )) )))
   (stmt (assignment_stmt Stmt_Assign ( (lexpr LExpr_Array ( (lexpr LExpr_Var ( (ident " _R ") )) , (expr (integer 3)) )) , (expr Expr_TApply ( (ident " add_bits.0 ") , [ (targs (expr (integer 64))) ] , [ (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 3)) )) ; (expr (bits '0000000000000000000000000000000000000000000000000000000010000000')) ] )) )))
   (stmt (call_stmt Stmt_TCall ( (ident " Mem.set.0 ") , [ (targs (expr (integer 8))) ] , [ (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 3)) )) ; (expr (integer 8)) ; (expr (integer 0)) ; (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 1)) )) ] )))
   (stmt (call_stmt Stmt_TCall ( (ident " Mem.set.0 ") , [ (targs (expr (integer 8))) ] , [ (expr Expr_TApply ( (ident " add_bits.0 ") , [ (targs (expr (integer 64))) ] , [ (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 3)) )) ; (expr (bits '0000000000000000000000000000000000000000000000000000000000001000')) ] )) ; (expr (integer 8)) ; (expr (integer 0)) ; (expr Expr_Array ( (expr Expr_Var ( (ident " _R ") )) , (expr (integer 2)) )) ] )))