CodeGen: Use 32-bit gep offsets to address vtable address points.

The relative vtable ABI will use a struct rather than an array as the type
of a vtable. LLVM only allows 32-bit integers as struct indices, so we need
to use 32-bit integers to get addresses of address points. In order to keep
the code simple, we might as well do that unconditionally.

It's probably a reasonable implementation limit to support no more than 2
billion virtual functions per class.

This change causes quite a bit of churn in the test suite, so I'm making
it separately.

Differential Revision: http://reviews.llvm.org/D18113

llvm-svn: 263469

1 files changed, 7 insertions, 7 deletions

diff --git a/clang/test/CodeGenCXX/skip-vtable-pointer-initialization.cpp b/clang/test/CodeGenCXX/skip-vtable-pointer-initialization.cpp
index f6f90986e14..4734c02bc52 100644
--- a/clang/test/CodeGenCXX/skip-vtable-pointer-initialization.cpp
+++ b/clang/test/CodeGenCXX/skip-vtable-pointer-initialization.cpp
@@ -27,7 +27,7 @@ struct A {
 };
 
 // CHECK-LABEL: define void @_ZN5Test21AD2Ev
-// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test21AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
+// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test21AE, i32 0, i32 2) to i32 (...)**), i32 (...)***
 A::~A() {
   f();
 }
@@ -50,7 +50,7 @@ struct A {
 };
 
 // CHECK-LABEL: define void @_ZN5Test31AD2Ev
-// CHECK-NOT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test31AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
+// CHECK-NOT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test31AE, i32 0, i32 2) to i32 (...)**), i32 (...)***
 A::~A() {
   
 }
@@ -76,7 +76,7 @@ struct A {
 };
 
 // CHECK-LABEL: define void @_ZN5Test41AD2Ev
-// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test41AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
+// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test41AE, i32 0, i32 2) to i32 (...)**), i32 (...)***
 A::~A()
 {
 }
@@ -100,7 +100,7 @@ struct A {
 };
 
 // CHECK-LABEL: define void @_ZN5Test51AD2Ev
-// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test51AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
+// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test51AE, i32 0, i32 2) to i32 (...)**), i32 (...)***
 A::~A()
 {
 }
@@ -128,7 +128,7 @@ struct A {
 };
 
 // CHECK-LABEL: define void @_ZN5Test61AD2Ev
-// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test61AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
+// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test61AE, i32 0, i32 2) to i32 (...)**), i32 (...)***
 A::~A()
 {
 }
@@ -154,7 +154,7 @@ struct A {
 };
 
 // CHECK-LABEL: define void @_ZN5Test71AD2Ev
-// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test71AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
+// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test71AE, i32 0, i32 2) to i32 (...)**), i32 (...)***
 A::~A()
 {
 }
@@ -180,7 +180,7 @@ struct A {
 };
 
 // CHECK-LABEL: define void @_ZN5Test81AD2Ev
-// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test81AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
+// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN5Test81AE, i32 0, i32 2) to i32 (...)**), i32 (...)***
 A::~A()
 {
 }