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| author | Peter Collingbourne <peter@pcc.me.uk> | 2016-03-14 19:07:10 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2016-03-14 19:07:10 +0000 |
| commit | 4e6a54002403fcbfb04ef15c01c2d73c2870f09f (patch) | |
| tree | 998420548162acef5fc4fb6d5230a742ce758166 /clang/test/CodeGenCXX/vtable-pointer-initialization.cpp | |
| parent | 3e271af415abaed8d988990dd49b55eb6a95c81b (diff) | |
| download | bcm5719-llvm-4e6a54002403fcbfb04ef15c01c2d73c2870f09f.tar.gz bcm5719-llvm-4e6a54002403fcbfb04ef15c01c2d73c2870f09f.zip | |
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
Diffstat (limited to 'clang/test/CodeGenCXX/vtable-pointer-initialization.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/vtable-pointer-initialization.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/clang/test/CodeGenCXX/vtable-pointer-initialization.cpp b/clang/test/CodeGenCXX/vtable-pointer-initialization.cpp index 2854291e296..130a55cf621 100644 --- a/clang/test/CodeGenCXX/vtable-pointer-initialization.cpp +++ b/clang/test/CodeGenCXX/vtable-pointer-initialization.cpp @@ -21,13 +21,13 @@ struct A : Base { // CHECK-LABEL: define void @_ZN1AC2Ev(%struct.A* %this) unnamed_addr // CHECK: call void @_ZN4BaseC2Ev( -// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1A, i64 0, i64 2) to i32 (...)**) +// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1A, i32 0, i32 2) to i32 (...)**) // CHECK: call void @_ZN5FieldC1Ev( // CHECK: ret void A::A() { } // CHECK-LABEL: define void @_ZN1AD2Ev(%struct.A* %this) unnamed_addr -// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1A, i64 0, i64 2) to i32 (...)**) +// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1A, i32 0, i32 2) to i32 (...)**) // CHECK: call void @_ZN5FieldD1Ev( // CHECK: call void @_ZN4BaseD2Ev( // CHECK: ret void @@ -49,12 +49,12 @@ void f() { B b; } // CHECK-LABEL: define linkonce_odr void @_ZN1BC2Ev(%struct.B* %this) unnamed_addr // CHECK: call void @_ZN4BaseC2Ev( -// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1B, i64 0, i64 2) to i32 (...)**) +// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1B, i32 0, i32 2) to i32 (...)**) // CHECK: call void @_ZN5FieldC1Ev // CHECK: ret void // CHECK-LABEL: define linkonce_odr void @_ZN1BD2Ev(%struct.B* %this) unnamed_addr -// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1B, i64 0, i64 2) to i32 (...)**) +// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTV1B, i32 0, i32 2) to i32 (...)**) // CHECK: call void @_ZN5FieldD1Ev( // CHECK: call void @_ZN4BaseD2Ev( // CHECK: ret void |
