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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/constructor-init.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/constructor-init.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/constructor-init.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/clang/test/CodeGenCXX/constructor-init.cpp b/clang/test/CodeGenCXX/constructor-init.cpp index d7ae220712f..c78534a218d 100644 --- a/clang/test/CodeGenCXX/constructor-init.cpp +++ b/clang/test/CodeGenCXX/constructor-init.cpp @@ -95,14 +95,14 @@ namespace InitVTable { // CHECK-LABEL: define void @_ZN10InitVTable1BC2Ev(%"struct.InitVTable::B"* %this) unnamed_addr // CHECK: [[T0:%.*]] = bitcast [[B:%.*]]* [[THIS:%.*]] to i32 (...)*** - // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2) to i32 (...)**), i32 (...)*** [[T0]] + // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]] // CHECK: [[VTBL:%.*]] = load i32 ([[B]]*)**, i32 ([[B]]*)*** {{%.*}} // CHECK-NEXT: [[FNP:%.*]] = getelementptr inbounds i32 ([[B]]*)*, i32 ([[B]]*)** [[VTBL]], i64 0 // CHECK-NEXT: [[FN:%.*]] = load i32 ([[B]]*)*, i32 ([[B]]*)** [[FNP]] // CHECK-NEXT: [[ARG:%.*]] = call i32 [[FN]]([[B]]* [[THIS]]) // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]]) // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* [[THIS]] to i32 (...)*** - // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2) to i32 (...)**), i32 (...)*** [[T0]] + // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]] // CHECK-NEXT: ret void B::B() : A(foo()) {} @@ -110,7 +110,7 @@ namespace InitVTable { // CHECK: [[ARG:%.*]] = add nsw i32 {{%.*}}, 5 // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]]) // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* {{%.*}} to i32 (...)*** - // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2) to i32 (...)**), i32 (...)*** [[T0]] + // CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @_ZTVN10InitVTable1BE, i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]] // CHECK-NEXT: ret void B::B(int x) : A(x + 5) {} } |
