[IR] Change representation of getelementptr inrange (#84341)

As part of the migration to ptradd
(https://discourse.llvm.org/t/rfc-replacing-getelementptr-with-ptradd/68699),
we need to change the representation of the `inrange` attribute, which
is used for vtable splitting.

Currently, inrange is specified as follows:

```
getelementptr inbounds ({ [4 x ptr], [4 x ptr] }, ptr @vt, i64 0, inrange i32 1, i64 2)
```

The `inrange` is placed on a GEP index, and all accesses must be "in
range" of that index. The new representation is as follows:

```
getelementptr inbounds inrange(-16, 16) ({ [4 x ptr], [4 x ptr] }, ptr @vt, i64 0, i32 1, i64 2)
```

This specifies which offsets are "in range" of the GEP result. The new
representation will continue working when canonicalizing to ptradd
representation:

```
getelementptr inbounds inrange(-16, 16) (i8, ptr @vt, i64 48)
```

The inrange offsets are relative to the return value of the GEP. An
alternative design could make them relative to the source pointer
instead. The result-relative format was chosen on the off-chance that we
want to extend support to non-constant GEPs in the future, in which case
this variant is more expressive.

This implementation "upgrades" the old inrange representation in bitcode
by simply dropping it. This is a very niche feature, and I don't think
trying to upgrade it is worthwhile. Let me know if you disagree.

Author: nikic

clang/lib/CodeGen/CGVTT.cpp

@@ -77,9 +77,18 @@ CodeGenVTables::EmitVTTDefinition(llvm::GlobalVariable *VTT,
        llvm::ConstantInt::get(CGM.Int32Ty, AddressPoint.AddressPointIndex),
      };
 
+     // Add inrange attribute to indicate that only the VTableIndex can be
+     // accessed.
+     unsigned ComponentSize =
+         CGM.getDataLayout().getTypeAllocSize(getVTableComponentType());
+     unsigned VTableSize = CGM.getDataLayout().getTypeAllocSize(
+         cast<llvm::StructType>(VTable->getValueType())
+             ->getElementType(AddressPoint.VTableIndex));
+     unsigned Offset = ComponentSize * AddressPoint.AddressPointIndex;
+     llvm::ConstantRange InRange(llvm::APInt(32, -Offset, true),
+                                 llvm::APInt(32, VTableSize - Offset, true));
      llvm::Constant *Init = llvm::ConstantExpr::getGetElementPtr(
-         VTable->getValueType(), VTable, Idxs, /*InBounds=*/true,
-         /*InRangeIndex=*/1);
+         VTable->getValueType(), VTable, Idxs, /*InBounds=*/true, InRange);
 
      VTTComponents.push_back(Init);
   }

clang/lib/CodeGen/ItaniumCXXABI.cpp

@@ -1885,19 +1885,27 @@ ItaniumCXXABI::getVTableAddressPoint(BaseSubobject Base,
 
   // Find the appropriate vtable within the vtable group, and the address point
   // within that vtable.
+  const VTableLayout &Layout =
+      CGM.getItaniumVTableContext().getVTableLayout(VTableClass);
   VTableLayout::AddressPointLocation AddressPoint =
-      CGM.getItaniumVTableContext()
-          .getVTableLayout(VTableClass)
-          .getAddressPoint(Base);
+      Layout.getAddressPoint(Base);
   llvm::Value *Indices[] = {
     llvm::ConstantInt::get(CGM.Int32Ty, 0),
     llvm::ConstantInt::get(CGM.Int32Ty, AddressPoint.VTableIndex),
     llvm::ConstantInt::get(CGM.Int32Ty, AddressPoint.AddressPointIndex),
   };
 
-  return llvm::ConstantExpr::getGetElementPtr(VTable->getValueType(), VTable,
-                                              Indices, /*InBounds=*/true,
-                                              /*InRangeIndex=*/1);
+  // Add inrange attribute to indicate that only the VTableIndex can be
+  // accessed.
+  unsigned ComponentSize =
+      CGM.getDataLayout().getTypeAllocSize(CGM.getVTableComponentType());
+  unsigned VTableSize =
+      ComponentSize * Layout.getVTableSize(AddressPoint.VTableIndex);
+  unsigned Offset = ComponentSize * AddressPoint.AddressPointIndex;
+  llvm::ConstantRange InRange(llvm::APInt(32, -Offset, true),
+                              llvm::APInt(32, VTableSize - Offset, true));
+  return llvm::ConstantExpr::getGetElementPtr(
+      VTable->getValueType(), VTable, Indices, /*InBounds=*/true, InRange);
 }
 
 // Check whether all the non-inline virtual methods for the class have the

clang/test/CodeGenCXX/RelativeVTablesABI/diamond-virtual-inheritance.cpp

@@ -9,19 +9,19 @@
 // CHECK: @_ZTV1B.local = private unnamed_addr constant { [4 x i32], [4 x i32] } { [4 x i32] [i32 8, i32 0, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1B.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, i32 0, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1B4barBEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, i32 0, i32 3) to i64)) to i32)], [4 x i32] [i32 0, i32 -8, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1B.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, i32 1, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1A3fooEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, i32 1, i32 3) to i64)) to i32)] }, align 4
 
 // VTT for B
-// CHECK: @_ZTT1B ={{.*}} unnamed_addr constant [2 x ptr] [ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, inrange i32 0, i32 3), ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, inrange i32 1, i32 3)], align 8
+// CHECK: @_ZTT1B ={{.*}} unnamed_addr constant [2 x ptr] [ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, i32 0, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTV1B.local, i32 0, i32 1, i32 3)], align 8
 
 // VTable for C
 // CHECK: @_ZTV1C.local = private unnamed_addr constant { [4 x i32], [4 x i32] } { [4 x i32] [i32 8, i32 0, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1C.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, i32 0, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1C4barCEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, i32 0, i32 3) to i64)) to i32)], [4 x i32] [i32 0, i32 -8, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1C.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, i32 1, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1A3fooEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, i32 1, i32 3) to i64)) to i32)] }, align 4
 
 // VTT for C
-// CHECK: @_ZTT1C ={{.*}} unnamed_addr constant [2 x ptr] [ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, inrange i32 0, i32 3), ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, inrange i32 1, i32 3)], align 8
+// CHECK: @_ZTT1C ={{.*}} unnamed_addr constant [2 x ptr] [ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, i32 0, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTV1C.local, i32 0, i32 1, i32 3)], align 8
 
 // VTable for D
 // CHECK: @_ZTV1D.local = private unnamed_addr constant { [5 x i32], [4 x i32], [4 x i32] } { [5 x i32] [i32 16, i32 0, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1D.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 0, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1B4barBEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 0, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1D3bazEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 0, i32 3) to i64)) to i32)], [4 x i32] [i32 8, i32 -8, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1D.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 1, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1C4barCEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 1, i32 3) to i64)) to i32)], [4 x i32] [i32 0, i32 -16, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1D.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 2, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1A3fooEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 2, i32 3) to i64)) to i32)] }, align 4
 
 // VTT for D
-// CHECK: @_ZTT1D ={{.*}} unnamed_addr constant [7 x ptr] [ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, inrange i32 0, i32 3), ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, inrange i32 0, i32 3), ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, inrange i32 1, i32 3), ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D8_1C.local, i32 0, inrange i32 0, i32 3), ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D8_1C.local, i32 0, inrange i32 1, i32 3), ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, inrange i32 2, i32 3), ptr getelementptr inbounds ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, inrange i32 1, i32 3)], align 8
+// CHECK: @_ZTT1D ={{.*}} unnamed_addr constant [7 x ptr] [ptr getelementptr inbounds inrange(-12, 8) ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 0, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, i32 0, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, i32 1, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D8_1C.local, i32 0, i32 0, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D8_1C.local, i32 0, i32 1, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 2, i32 3), ptr getelementptr inbounds inrange(-12, 4) ({ [5 x i32], [4 x i32], [4 x i32] }, ptr @_ZTV1D.local, i32 0, i32 1, i32 3)], align 8
 
 // Construction vtable for B-in-D
 // CHECK: @_ZTC1D0_1B.local = private unnamed_addr constant { [4 x i32], [4 x i32] } { [4 x i32] [i32 16, i32 0, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1B.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, i32 0, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1B4barBEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, i32 0, i32 3) to i64)) to i32)], [4 x i32] [i32 0, i32 -16, i32 trunc (i64 sub (i64 ptrtoint (ptr @_ZTI1B.rtti_proxy to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, i32 1, i32 3) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @_ZN1A3fooEv to i64), i64 ptrtoint (ptr getelementptr inbounds ({ [4 x i32], [4 x i32] }, ptr @_ZTC1D0_1B.local, i32 0, i32 1, i32 3) to i64)) to i32)] }, align 4

clang/test/CodeGenCXX/auto-var-init.cpp

@@ -1345,7 +1345,7 @@ TEST_UNINIT(base, base);
 // PATTERN-O0: call void @llvm.memcpy{{.*}} @__const.test_base_uninit.uninit{{.+}}), !annotation [[AUTO_INIT]]
 // ZERO-LABEL: @test_base_uninit()
 // ZERO-O0: call void @llvm.memset{{.*}}, i8 0,{{.+}}), !annotation [[AUTO_INIT]]
-// ZERO-O1: store ptr getelementptr inbounds ({ [4 x ptr] }, ptr @_ZTV4base, i64 0, inrange i32 0, i64 2), {{.*}}, align 8
+// ZERO-O1: store ptr getelementptr inbounds inrange(-16, 16) ({ [4 x ptr] }, ptr @_ZTV4base, i64 0, i32 0, i64 2), {{.*}}, align 8
 // ZERO-O1-NOT: !annotation
 
 TEST_BRACES(base, base);
@@ -1366,7 +1366,7 @@ TEST_UNINIT(derived, derived);
 // ZERO-LABEL: @test_derived_uninit()
 // ZERO-O0: call void @llvm.memset{{.*}}, i8 0, {{.+}}), !annotation [[AUTO_INIT]]
 // ZERO-O1: store i64 0, {{.*}} align 8, !annotation [[AUTO_INIT]]
-// ZERO-O1: store ptr getelementptr inbounds ({ [4 x ptr] }, ptr @_ZTV7derived, i64 0, inrange i32 0, i64 2), {{.*}} align 8
+// ZERO-O1: store ptr getelementptr inbounds inrange(-16, 16) ({ [4 x ptr] }, ptr @_ZTV7derived, i64 0, i32 0, i64 2), {{.*}} align 8
 
 TEST_BRACES(derived, derived);
 // CHECK-LABEL: @test_derived_braces()

clang/test/CodeGenCXX/const-init-cxx11.cpp

@@ -344,13 +344,13 @@ namespace VirtualMembers {
     constexpr E() : B(3), c{'b','y','e'} {}
     char c[3];
   };
-  // CHECK: @_ZN14VirtualMembers1eE ={{.*}} global { ptr, double, i32, ptr, double, [5 x i8], i16, ptr, double, [5 x i8], [3 x i8] } { ptr getelementptr inbounds ({ [3 x ptr], [4 x ptr], [4 x ptr] }, ptr @_ZTVN14VirtualMembers1EE, i32 0, inrange i32 0, i32 2), double 1.000000e+00, i32 64, ptr getelementptr inbounds ({ [3 x ptr], [4 x ptr], [4 x ptr] }, ptr @_ZTVN14VirtualMembers1EE, i32 0, inrange i32 1, i32 2), double 2.000000e+00, [5 x i8] c"hello", i16 5, ptr getelementptr inbounds ({ [3 x ptr], [4 x ptr], [4 x ptr] }, ptr @_ZTVN14VirtualMembers1EE, i32 0, inrange i32 2, i32 2), double 3.000000e+00, [5 x i8] c"world", [3 x i8] c"bye" }
+  // CHECK: @_ZN14VirtualMembers1eE ={{.*}} global { ptr, double, i32, ptr, double, [5 x i8], i16, ptr, double, [5 x i8], [3 x i8] } { ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr], [4 x ptr], [4 x ptr] }, ptr @_ZTVN14VirtualMembers1EE, i32 0, i32 0, i32 2), double 1.000000e+00, i32 64, ptr getelementptr inbounds inrange(-16, 16) ({ [3 x ptr], [4 x ptr], [4 x ptr] }, ptr @_ZTVN14VirtualMembers1EE, i32 0, i32 1, i32 2), double 2.000000e+00, [5 x i8] c"hello", i16 5, ptr getelementptr inbounds inrange(-16, 16) ({ [3 x ptr], [4 x ptr], [4 x ptr] }, ptr @_ZTVN14VirtualMembers1EE, i32 0, i32 2, i32 2), double 3.000000e+00, [5 x i8] c"world", [3 x i8] c"bye" }
   E e;
 
   struct nsMemoryImpl {
     virtual void f();
   };
-  // CHECK: @_ZN14VirtualMembersL13sGlobalMemoryE = internal global %"struct.VirtualMembers::nsMemoryImpl" { ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTVN14VirtualMembers12nsMemoryImplE, i32 0, inrange i32 0, i32 2) }
+  // CHECK: @_ZN14VirtualMembersL13sGlobalMemoryE = internal global %"struct.VirtualMembers::nsMemoryImpl" { ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTVN14VirtualMembers12nsMemoryImplE, i32 0, i32 0, i32 2) }
   __attribute__((used))
   static nsMemoryImpl sGlobalMemory;
 
@@ -361,7 +361,7 @@ namespace VirtualMembers {
 
     T t;
   };
-  // CHECK: @_ZN14VirtualMembers1tE ={{.*}} global { ptr, i32 } { ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTVN14VirtualMembers13TemplateClassIiEE, i32 0, inrange i32 0, i32 2), i32 42 }
+  // CHECK: @_ZN14VirtualMembers1tE ={{.*}} global { ptr, i32 } { ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTVN14VirtualMembers13TemplateClassIiEE, i32 0, i32 0, i32 2), i32 42 }
   TemplateClass<int> t;
 }
 

clang/test/CodeGenCXX/constructor-init.cpp

@@ -94,20 +94,20 @@ namespace InitVTable {
   };
 
   // CHECK-LABEL: define{{.*}} void @_ZN10InitVTable1BC2Ev(ptr {{[^,]*}} %this) unnamed_addr
-  // CHECK: store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTVN10InitVTable1BE, i32 0, inrange i32 0, i32 2), ptr [[THIS:%.*]],
+  // CHECK: store ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTVN10InitVTable1BE, i32 0, i32 0, i32 2), ptr [[THIS:%.*]],
   // CHECK:      [[VTBL:%.*]] = load ptr, ptr {{%.*}}
   // CHECK-NEXT: [[FNP:%.*]] = getelementptr inbounds ptr, ptr [[VTBL]], i64 0
   // CHECK-NEXT: [[FN:%.*]] = load ptr, ptr [[FNP]]
   // CHECK-NEXT: [[ARG:%.*]] = call noundef i32 [[FN]](ptr {{[^,]*}} [[THIS]])
   // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei(ptr {{[^,]*}} {{%.*}}, i32 noundef [[ARG]])
-  // CHECK-NEXT: store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTVN10InitVTable1BE, i32 0, inrange i32 0, i32 2), ptr [[THIS]]
+  // CHECK-NEXT: store ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTVN10InitVTable1BE, i32 0, i32 0, i32 2), ptr [[THIS]]
   // CHECK-NEXT: ret void
   B::B() : A(foo()) {}
 
   // CHECK-LABEL: define{{.*}} void @_ZN10InitVTable1BC2Ei(ptr {{[^,]*}} %this, i32 noundef %x) unnamed_addr
   // CHECK:      [[ARG:%.*]] = add nsw i32 {{%.*}}, 5
   // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei(ptr {{[^,]*}} {{%.*}}, i32 noundef [[ARG]])
-  // CHECK-NEXT: store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTVN10InitVTable1BE, i32 0, inrange i32 0, i32 2), ptr {{%.*}}
+  // CHECK-NEXT: store ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTVN10InitVTable1BE, i32 0, i32 0, i32 2), ptr {{%.*}}
   // CHECK-NEXT: ret void
   B::B(int x) : A(x + 5) {}
 }

clang/test/CodeGenCXX/copy-constructor-synthesis-2.cpp

@@ -24,4 +24,4 @@ struct A { virtual void a(); };
 A x(A& y) { return y; }
 
 // CHECK: define linkonce_odr {{.*}} @_ZN1AC1ERKS_(ptr {{.*}}%this, ptr noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %0) unnamed_addr
-// CHECK: store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTV1A, i32 0, inrange i32 0, i32 2)
+// CHECK: store ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTV1A, i32 0, i32 0, i32 2)

clang/test/CodeGenCXX/copy-constructor-synthesis.cpp

@@ -163,7 +163,7 @@ void f(B b1) {
 
 // CHECK-LABEL:    define linkonce_odr void @_ZN12rdar138169401AC2ERKS0_(
 // CHECK:      [[THIS:%.*]] = load ptr, ptr
-// CHECK-NEXT: store ptr getelementptr inbounds ({ [4 x ptr] }, ptr @_ZTVN12rdar138169401AE, i32 0, inrange i32 0, i32 2), ptr [[THIS]]
+// CHECK-NEXT: store ptr getelementptr inbounds inrange(-16, 16) ({ [4 x ptr] }, ptr @_ZTVN12rdar138169401AE, i32 0, i32 0, i32 2), ptr [[THIS]]
 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[A]], ptr [[THIS]], i32 0, i32 1
 // CHECK-NEXT: [[OTHER:%.*]] = load ptr, ptr
 // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[A]], ptr [[OTHER]], i32 0, i32 1

clang/test/CodeGenCXX/dynamic-cast-exact.cpp

@@ -23,7 +23,7 @@ B *exact_single(A *a) {
 
   // CHECK: [[LABEL_NOTNULL]]:
   // CHECK: %[[VPTR:.*]] = load ptr, ptr %[[PTR]]
-  // CHECK: %[[MATCH:.*]] = icmp eq ptr %[[VPTR]], getelementptr inbounds ({ [4 x ptr], [4 x ptr] }, ptr @_ZTV1B, i32 0, inrange i32 1, i32 2)
+  // CHECK: %[[MATCH:.*]] = icmp eq ptr %[[VPTR]], getelementptr inbounds inrange(-16, 16) ({ [4 x ptr], [4 x ptr] }, ptr @_ZTV1B, i32 0, i32 1, i32 2)
   // CHECK: %[[RESULT:.*]] = getelementptr inbounds i8, ptr %[[PTR]], i64 -8
   // CHECK: br i1 %[[MATCH]], label %[[LABEL_END:.*]], label %[[LABEL_FAILED]]
 
@@ -42,7 +42,7 @@ B &exact_ref(A &a) {
 
   // CHECK: [[LABEL_NOTNULL]]:
   // CHECK: %[[VPTR:.*]] = load ptr, ptr %[[PTR]]
-  // CHECK: %[[MATCH:.*]] = icmp eq ptr %[[VPTR]], getelementptr inbounds ({ [4 x ptr], [4 x ptr] }, ptr @_ZTV1B, i32 0, inrange i32 1, i32 2)
+  // CHECK: %[[MATCH:.*]] = icmp eq ptr %[[VPTR]], getelementptr inbounds inrange(-16, 16) ({ [4 x ptr], [4 x ptr] }, ptr @_ZTV1B, i32 0, i32 1, i32 2)
   // CHECK: %[[RESULT:.*]] = getelementptr inbounds i8, ptr %[[PTR]], i64 -8
   // CHECK: br i1 %[[MATCH]], label %[[LABEL_END:.*]], label %[[LABEL_FAILED]]
 
@@ -66,7 +66,7 @@ H *exact_multi(A *a) {
   // CHECK: %[[OFFSET_TO_TOP:.*]] = load i64, ptr %[[OFFSET_TO_TOP_SLOT]]
   // CHECK: %[[RESULT:.*]] = getelementptr inbounds i8, ptr %[[PTR]], i64 %[[OFFSET_TO_TOP]]
   // CHECK: %[[DERIVED_VPTR:.*]] = load ptr, ptr %[[RESULT]]
-  // CHECK: %[[MATCH:.*]] = icmp eq ptr %[[DERIVED_VPTR]], getelementptr inbounds ({ [5 x ptr], [4 x ptr], [4 x ptr], [6 x ptr], [6 x ptr] }, ptr @_ZTV1H, i32 0, inrange i32 0, i32 3)
+  // CHECK: %[[MATCH:.*]] = icmp eq ptr %[[DERIVED_VPTR]], getelementptr inbounds inrange(-24, 16) ({ [5 x ptr], [4 x ptr], [4 x ptr], [6 x ptr], [6 x ptr] }, ptr @_ZTV1H, i32 0, i32 0, i32 3)
   // CHECK: br i1 %[[MATCH]], label %[[LABEL_END:.*]], label %[[LABEL_FAILED]]
 
   // CHECK: [[LABEL_FAILED]]:

clang/test/CodeGenCXX/microsoft-interface.cpp

@@ -31,10 +31,10 @@ int fn() {
 
 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @_ZN1SC2Ev(ptr {{[^,]*}} %this)
 // CHECK:   call x86_thiscallcc void @_ZN1IC2Ev(ptr {{[^,]*}} %{{[.0-9A-Z_a-z]+}})
-// CHECK:   store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTV1S, i32 0, inrange i32 0, i32 2), ptr %{{[.0-9A-Z_a-z]+}}
+// CHECK:   store ptr getelementptr inbounds inrange(-8, 4) ({ [3 x ptr] }, ptr @_ZTV1S, i32 0, i32 0, i32 2), ptr %{{[.0-9A-Z_a-z]+}}
 
 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @_ZN1IC2Ev(ptr {{[^,]*}} %this)
-// CHECK:   store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTV1I, i32 0, inrange i32 0, i32 2), ptr %{{[.0-9A-Z_a-z]+}}
+// CHECK:   store ptr getelementptr inbounds inrange(-8, 4) ({ [3 x ptr] }, ptr @_ZTV1I, i32 0, i32 0, i32 2), ptr %{{[.0-9A-Z_a-z]+}}
 
 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc noundef i32 @_ZN1I4testEv(ptr {{[^,]*}} %this)
 // CHECK:   ret i32 1