[llvm] 2f38c75 - Revert "[IR] Intrinsics default attributes and opt-out flag"

Johannes Doerfert via llvm-commits llvm-commits at lists.llvm.org
Wed Aug 19 22:28:41 PDT 2020


Author: Johannes Doerfert
Date: 2020-08-20T00:25:32-05:00
New Revision: 2f38c755ba46d1357d79c922966d964694eb854e

URL: https://github.com/llvm/llvm-project/commit/2f38c755ba46d1357d79c922966d964694eb854e
DIFF: https://github.com/llvm/llvm-project/commit/2f38c755ba46d1357d79c922966d964694eb854e.diff

LOG: Revert "[IR] Intrinsics default attributes and opt-out flag"

This commit introduced a non-trivial compile time regression that needs
to be addressed: https://reviews.llvm.org/D70365#2227627
Given that it is unclear how long that will take, I'll revert it for
now.

This reverts commit eedf18fc1f5fc71bb896204abf41fc5a2dbf25f7.

Added: 
    

Modified: 
    llvm/include/llvm/IR/Intrinsics.td
    llvm/test/TableGen/intrin-side-effects.td
    llvm/test/TableGen/intrinsic-long-name.td
    llvm/test/TableGen/intrinsic-pointer-to-any.td
    llvm/test/TableGen/intrinsic-struct.td
    llvm/test/TableGen/intrinsic-varargs.td
    llvm/test/TableGen/searchabletables-intrinsic.td
    llvm/utils/TableGen/CodeGenIntrinsics.h
    llvm/utils/TableGen/CodeGenTarget.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/include/llvm/IR/Intrinsics.td b/llvm/include/llvm/IR/Intrinsics.td
index 8ece1f8b1b12..3162d4bea529 100644
--- a/llvm/include/llvm/IR/Intrinsics.td
+++ b/llvm/include/llvm/IR/Intrinsics.td
@@ -17,9 +17,7 @@ include "llvm/CodeGen/SDNodeProperties.td"
 //  Properties we keep track of for intrinsics.
 //===----------------------------------------------------------------------===//
 
-class IntrinsicProperty<bit is_default = 0> {
-  bit IsDefault = is_default;
-}
+class IntrinsicProperty;
 
 // Intr*Mem - Memory properties.  If no property is set, the worst case
 // is assumed (it may read and write any memory it can get access to and it may
@@ -333,8 +331,7 @@ class Intrinsic<list<LLVMType> ret_types,
                 list<LLVMType> param_types = [],
                 list<IntrinsicProperty> intr_properties = [],
                 string name = "",
-                list<SDNodeProperty> sd_properties = [],
-                bit disable_default_attributes = 0> : SDPatternOperator {
+                list<SDNodeProperty> sd_properties = []> : SDPatternOperator {
   string LLVMName = name;
   string TargetPrefix = "";   // Set to a prefix for target-specific intrinsics.
   list<LLVMType> RetTypes = ret_types;
@@ -342,10 +339,6 @@ class Intrinsic<list<LLVMType> ret_types,
   list<IntrinsicProperty> IntrProperties = intr_properties;
   let Properties = sd_properties;
 
-  // Disable applying IntrinsicProperties that are marked default with
-  // IntrinsicProperty<1>
-  bit DisableDefaultAttributes = disable_default_attributes;
-
   bit isTarget = 0;
 }
 

diff  --git a/llvm/test/TableGen/intrin-side-effects.td b/llvm/test/TableGen/intrin-side-effects.td
index f58d37453282..7588855830fa 100644
--- a/llvm/test/TableGen/intrin-side-effects.td
+++ b/llvm/test/TableGen/intrin-side-effects.td
@@ -11,10 +11,7 @@ class LLVMType<ValueType vt> {
 
 def llvm_i32_ty        : LLVMType<i32>;
 
-class IntrinsicProperty<bit is_default = 0> {
-  bit IsDefault = is_default;
-}
-
+class IntrinsicProperty;
 def IntrNoMem : IntrinsicProperty;
 def IntrHasSideEffects : IntrinsicProperty;
 
@@ -30,8 +27,6 @@ class Intrinsic<list<LLVMType> ret_types,
   list<LLVMType> ParamTypes = param_types;
   list<IntrinsicProperty> IntrProperties = intr_properties;
   let Properties = sd_properties;
-  bit DisableDefaultAttributes = 1;
-
 
   bit isTarget = 0;
 }

diff  --git a/llvm/test/TableGen/intrinsic-long-name.td b/llvm/test/TableGen/intrinsic-long-name.td
index d66173202302..c2f696e8ca18 100644
--- a/llvm/test/TableGen/intrinsic-long-name.td
+++ b/llvm/test/TableGen/intrinsic-long-name.td
@@ -1,10 +1,7 @@
 // RUN: llvm-tblgen -gen-intrinsic-enums %s | FileCheck %s
 // XFAIL: vg_leak
 
-class IntrinsicProperty<bit is_default = 0> {
-  bit IsDefault = is_default;
-}
-
+class IntrinsicProperty;
 class SDNodeProperty;
 
 class ValueType<int size, int value> {
@@ -25,7 +22,6 @@ class Intrinsic<string name, list<LLVMType> param_types = []> {
   list<LLVMType> ParamTypes = param_types;
   list<IntrinsicProperty> IntrProperties = [];
   list<SDNodeProperty> Properties = [];
-  bit DisableDefaultAttributes = 1;
 }
 
 def iAny : ValueType<0, 253>;

diff  --git a/llvm/test/TableGen/intrinsic-pointer-to-any.td b/llvm/test/TableGen/intrinsic-pointer-to-any.td
index 0b0bc1510775..c58595acfde7 100644
--- a/llvm/test/TableGen/intrinsic-pointer-to-any.td
+++ b/llvm/test/TableGen/intrinsic-pointer-to-any.td
@@ -6,10 +6,7 @@
 // case, so TableGen would hit an assertion in EncodeFixedType that was checking
 // to ensure that the substitution being processed was correctly replaced.
 
-class IntrinsicProperty<bit is_default = 0> {
-  bit IsDefault = is_default;
-}
-
+class IntrinsicProperty;
 class SDNodeProperty;
 
 class ValueType<int size, int value> {
@@ -35,7 +32,6 @@ class Intrinsic<list<LLVMType> ret_types> {
   list<IntrinsicProperty> IntrProperties = [];
   list<SDNodeProperty> Properties = [];
   bit isTarget = 0;
-  bit DisableDefaultAttributes = 1;
 }
 
 class LLVMQualPointerType<LLVMType elty>

diff  --git a/llvm/test/TableGen/intrinsic-struct.td b/llvm/test/TableGen/intrinsic-struct.td
index bc044a4a6f85..7a3089c802a9 100644
--- a/llvm/test/TableGen/intrinsic-struct.td
+++ b/llvm/test/TableGen/intrinsic-struct.td
@@ -1,10 +1,7 @@
 // RUN: llvm-tblgen -gen-intrinsic-enums %s | FileCheck %s
 // XFAIL: vg_leak
 
-class IntrinsicProperty<bit is_default = 0> {
-  bit IsDefault = is_default;
-}
-
+class IntrinsicProperty;
 class SDNodeProperty;
 
 class ValueType<int size, int value> {
@@ -25,7 +22,6 @@ class Intrinsic<string name, list<LLVMType> ret_types = []> {
   list<LLVMType> ParamTypes = [];
   list<IntrinsicProperty> IntrProperties = [];
   list<SDNodeProperty> Properties = [];
-  bit DisableDefaultAttributes = 1;
 }
 
 def iAny : ValueType<0, 253>;

diff  --git a/llvm/test/TableGen/intrinsic-varargs.td b/llvm/test/TableGen/intrinsic-varargs.td
index da860ed0129c..6a2252215a83 100644
--- a/llvm/test/TableGen/intrinsic-varargs.td
+++ b/llvm/test/TableGen/intrinsic-varargs.td
@@ -3,9 +3,7 @@
 
 include "llvm/CodeGen/ValueTypes.td"
 
-class IntrinsicProperty<bit is_default = 0> {
-  bit IsDefault = is_default;
-}
+class IntrinsicProperty;
 class SDNodeProperty;
 
 class LLVMType<ValueType vt> {
@@ -20,7 +18,6 @@ class Intrinsic<string name, list<LLVMType> param_types = []> {
   list<LLVMType> ParamTypes = param_types;
   list<IntrinsicProperty> IntrProperties = [];
   list<SDNodeProperty> Properties = [];
-  bit DisableDefaultAttributes = 1;
 }
 
 def llvm_vararg_ty : LLVMType<isVoid>;   // this means vararg here

diff  --git a/llvm/test/TableGen/searchabletables-intrinsic.td b/llvm/test/TableGen/searchabletables-intrinsic.td
index 75722d19b16e..e5cb9db3aa6b 100644
--- a/llvm/test/TableGen/searchabletables-intrinsic.td
+++ b/llvm/test/TableGen/searchabletables-intrinsic.td
@@ -3,10 +3,7 @@
 
 include "llvm/TableGen/SearchableTable.td"
 
-class IntrinsicProperty<bit is_default = 0> {
-  bit IsDefault = is_default;
-}
-
+class IntrinsicProperty;
 class SDNodeProperty;
 
 class ValueType<int size, int value> {
@@ -27,7 +24,6 @@ class Intrinsic<list<LLVMType> param_types = []> {
   list<LLVMType> ParamTypes = param_types;
   list<IntrinsicProperty> IntrProperties = [];
   list<SDNodeProperty> Properties = [];
-  bit DisableDefaultAttributes = 1;
 }
 
 def iAny : ValueType<0, 253>;

diff  --git a/llvm/utils/TableGen/CodeGenIntrinsics.h b/llvm/utils/TableGen/CodeGenIntrinsics.h
index 097c677c35b4..af59c1f3d833 100644
--- a/llvm/utils/TableGen/CodeGenIntrinsics.h
+++ b/llvm/utils/TableGen/CodeGenIntrinsics.h
@@ -176,13 +176,6 @@ struct CodeGenIntrinsic {
     return Properties & (1 << Prop);
   }
 
-  /// Goes through all IntrProperties and sets to true ones that have IsDefault
-  /// value set to true.
-  void setDefaultProperties(Record *R);
-
-  /// Helper function to set property \p Name to true;
-  void setProperty(Record *R);
-
   /// Returns true if the parameter at \p ParamIdx is a pointer type. Returns
   /// false if the parameter is not a pointer, or \p ParamIdx is greater than
   /// the size of \p IS.ParamVTs.

diff  --git a/llvm/utils/TableGen/CodeGenTarget.cpp b/llvm/utils/TableGen/CodeGenTarget.cpp
index 7806c91c5a93..891a08ea590e 100644
--- a/llvm/utils/TableGen/CodeGenTarget.cpp
+++ b/llvm/utils/TableGen/CodeGenTarget.cpp
@@ -766,9 +766,6 @@ CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
     IS.ParamTypeDefs.push_back(TyEl);
   }
 
-  // Set default properties to true.
-  setDefaultProperties(R);
-
   // Parse the intrinsic properties.
   ListInit *PropList = R->getValueAsListInit("IntrProperties");
   for (unsigned i = 0, e = PropList->size(); i != e; ++i) {
@@ -776,7 +773,68 @@ CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
     assert(Property->isSubClassOf("IntrinsicProperty") &&
            "Expected a property!");
 
-    setProperty(Property);
+    if (Property->getName() == "IntrNoMem")
+      ModRef = NoMem;
+    else if (Property->getName() == "IntrReadMem")
+      ModRef = ModRefBehavior(ModRef & ~MR_Mod);
+    else if (Property->getName() == "IntrWriteMem")
+      ModRef = ModRefBehavior(ModRef & ~MR_Ref);
+    else if (Property->getName() == "IntrArgMemOnly")
+      ModRef = ModRefBehavior((ModRef & ~MR_Anywhere) | MR_ArgMem);
+    else if (Property->getName() == "IntrInaccessibleMemOnly")
+      ModRef = ModRefBehavior((ModRef & ~MR_Anywhere) | MR_InaccessibleMem);
+    else if (Property->getName() == "IntrInaccessibleMemOrArgMemOnly")
+      ModRef = ModRefBehavior((ModRef & ~MR_Anywhere) | MR_ArgMem |
+                              MR_InaccessibleMem);
+    else if (Property->getName() == "Commutative")
+      isCommutative = true;
+    else if (Property->getName() == "Throws")
+      canThrow = true;
+    else if (Property->getName() == "IntrNoDuplicate")
+      isNoDuplicate = true;
+    else if (Property->getName() == "IntrConvergent")
+      isConvergent = true;
+    else if (Property->getName() == "IntrNoReturn")
+      isNoReturn = true;
+    else if (Property->getName() == "IntrNoSync")
+      isNoSync = true;
+    else if (Property->getName() == "IntrNoFree")
+      isNoFree = true;
+    else if (Property->getName() == "IntrWillReturn")
+      isWillReturn = true;
+    else if (Property->getName() == "IntrCold")
+      isCold = true;
+    else if (Property->getName() == "IntrSpeculatable")
+      isSpeculatable = true;
+    else if (Property->getName() == "IntrHasSideEffects")
+      hasSideEffects = true;
+    else if (Property->isSubClassOf("NoCapture")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      ArgumentAttributes.emplace_back(ArgNo, NoCapture, 0);
+    } else if (Property->isSubClassOf("NoAlias")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      ArgumentAttributes.emplace_back(ArgNo, NoAlias, 0);
+    } else if (Property->isSubClassOf("Returned")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      ArgumentAttributes.emplace_back(ArgNo, Returned, 0);
+    } else if (Property->isSubClassOf("ReadOnly")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      ArgumentAttributes.emplace_back(ArgNo, ReadOnly, 0);
+    } else if (Property->isSubClassOf("WriteOnly")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      ArgumentAttributes.emplace_back(ArgNo, WriteOnly, 0);
+    } else if (Property->isSubClassOf("ReadNone")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      ArgumentAttributes.emplace_back(ArgNo, ReadNone, 0);
+    } else if (Property->isSubClassOf("ImmArg")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      ArgumentAttributes.emplace_back(ArgNo, ImmArg, 0);
+    } else if (Property->isSubClassOf("Align")) {
+      unsigned ArgNo = Property->getValueAsInt("ArgNo");
+      uint64_t Align = Property->getValueAsInt("Align");
+      ArgumentAttributes.emplace_back(ArgNo, Alignment, Align);
+    } else
+      llvm_unreachable("Unknown property!");
   }
 
   // Also record the SDPatternOperator Properties.
@@ -786,84 +844,6 @@ CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
   llvm::sort(ArgumentAttributes);
 }
 
-void CodeGenIntrinsic::setDefaultProperties(Record *R) {
-  // opt-out of using default attributes.
-  if (R->getValueAsBit("DisableDefaultAttributes"))
-    return;
-
-  std::vector<Record *> Defs =
-      R->getRecords().getAllDerivedDefinitions("IntrinsicProperty");
-
-  for (Record *Rec : Defs)
-    if (Rec->getValueAsBit("IsDefault"))
-      setProperty(Rec);
-}
-
-void CodeGenIntrinsic::setProperty(Record *R) {
-  if (R->getName() == "IntrNoMem")
-    ModRef = NoMem;
-  else if (R->getName() == "IntrReadMem")
-    ModRef = ModRefBehavior(ModRef & ~MR_Mod);
-  else if (R->getName() == "IntrWriteMem")
-    ModRef = ModRefBehavior(ModRef & ~MR_Ref);
-  else if (R->getName() == "IntrArgMemOnly")
-    ModRef = ModRefBehavior((ModRef & ~MR_Anywhere) | MR_ArgMem);
-  else if (R->getName() == "IntrInaccessibleMemOnly")
-    ModRef = ModRefBehavior((ModRef & ~MR_Anywhere) | MR_InaccessibleMem);
-  else if (R->getName() == "IntrInaccessibleMemOrArgMemOnly")
-    ModRef = ModRefBehavior((ModRef & ~MR_Anywhere) | MR_ArgMem |
-                            MR_InaccessibleMem);
-  else if (R->getName() == "Commutative")
-    isCommutative = true;
-  else if (R->getName() == "Throws")
-    canThrow = true;
-  else if (R->getName() == "IntrNoDuplicate")
-    isNoDuplicate = true;
-  else if (R->getName() == "IntrConvergent")
-    isConvergent = true;
-  else if (R->getName() == "IntrNoReturn")
-    isNoReturn = true;
-  else if (R->getName() == "IntrNoSync")
-    isNoSync = true;
-  else if (R->getName() == "IntrNoFree")
-    isNoFree = true;
-  else if (R->getName() == "IntrWillReturn")
-    isWillReturn = true;
-  else if (R->getName() == "IntrCold")
-    isCold = true;
-  else if (R->getName() == "IntrSpeculatable")
-    isSpeculatable = true;
-  else if (R->getName() == "IntrHasSideEffects")
-    hasSideEffects = true;
-  else if (R->isSubClassOf("NoCapture")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    ArgumentAttributes.emplace_back(ArgNo, NoCapture, 0);
-  } else if (R->isSubClassOf("NoAlias")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    ArgumentAttributes.emplace_back(ArgNo, NoAlias, 0);
-  } else if (R->isSubClassOf("Returned")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    ArgumentAttributes.emplace_back(ArgNo, Returned, 0);
-  } else if (R->isSubClassOf("ReadOnly")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    ArgumentAttributes.emplace_back(ArgNo, ReadOnly, 0);
-  } else if (R->isSubClassOf("WriteOnly")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    ArgumentAttributes.emplace_back(ArgNo, WriteOnly, 0);
-  } else if (R->isSubClassOf("ReadNone")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    ArgumentAttributes.emplace_back(ArgNo, ReadNone, 0);
-  } else if (R->isSubClassOf("ImmArg")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    ArgumentAttributes.emplace_back(ArgNo, ImmArg, 0);
-  } else if (R->isSubClassOf("Align")) {
-    unsigned ArgNo = R->getValueAsInt("ArgNo");
-    uint64_t Align = R->getValueAsInt("Align");
-    ArgumentAttributes.emplace_back(ArgNo, Alignment, Align);
-  } else
-    llvm_unreachable("Unknown property!");
-}
-
 bool CodeGenIntrinsic::isParamAPointer(unsigned ParamIdx) const {
   if (ParamIdx >= IS.ParamVTs.size())
     return false;


        


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