diff options
| author | Reid Kleckner <reid@kleckner.net> | 2014-10-22 17:26:00 +0000 |
|---|---|---|
| committer | Reid Kleckner <reid@kleckner.net> | 2014-10-22 17:26:00 +0000 |
| commit | b7f05872636b6eaf6f0b11b177b812dee891c19f (patch) | |
| tree | 68de3ad2c2dca80940115e237b9dd19e2012f428 /test/CodeGenCXX/microsoft-abi-virtual-inheritance.cpp | |
| parent | c886ae8062c914804256420f20c918685da5d1b5 (diff) | |
MS ABI: Emit more canonical vbptr stores and loads
This eliminates some i8* GEPs and makes the IR that clang emits a bit
more canonical. More work is needed for vftables, but that isn't a clear
win so I plan to send it for review.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220398 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/microsoft-abi-virtual-inheritance.cpp')
| -rw-r--r-- | test/CodeGenCXX/microsoft-abi-virtual-inheritance.cpp | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/test/CodeGenCXX/microsoft-abi-virtual-inheritance.cpp b/test/CodeGenCXX/microsoft-abi-virtual-inheritance.cpp index 2f0fffee69..18d47cea48 100644 --- a/test/CodeGenCXX/microsoft-abi-virtual-inheritance.cpp +++ b/test/CodeGenCXX/microsoft-abi-virtual-inheritance.cpp @@ -122,10 +122,9 @@ void B::foo() { // CHECK: %[[THIS:.*]] = load %struct.B** %[[THIS_ADDR]] // CHECK: %[[THIS8:.*]] = bitcast %struct.B* %[[THIS]] to i8* // CHECK: %[[VBPTR:.*]] = getelementptr inbounds i8* %[[THIS8]], i32 0 -// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i8** -// CHECK: %[[VBTABLE:.*]] = load i8** %[[VBPTR8]] -// CHECK: %[[VBENTRY8:.*]] = getelementptr inbounds i8* %[[VBTABLE]], i32 4 -// CHECK: %[[VBENTRY:.*]] = bitcast i8* %[[VBENTRY8]] to i32* +// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i32** +// CHECK: %[[VBTABLE:.*]] = load i32** %[[VBPTR8]] +// CHECK: %[[VBENTRY:.*]] = getelementptr inbounds i32* %[[VBTABLE]], i32 1 // CHECK: %[[VBOFFSET32:.*]] = load i32* %[[VBENTRY]] // CHECK: %[[VBOFFSET:.*]] = add nsw i32 0, %[[VBOFFSET32]] // CHECK: %[[THIS8:.*]] = bitcast %struct.B* %[[THIS]] to i8* @@ -147,10 +146,9 @@ void call_vbase_bar(B *obj) { // // CHECK: %[[OBJ_i8:.*]] = bitcast %struct.B* %[[OBJ]] to i8* // CHECK: %[[VBPTR:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 0 -// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i8** -// CHECK: %[[VBTABLE:.*]] = load i8** %[[VBPTR8]] -// CHECK: %[[VBENTRY8:.*]] = getelementptr inbounds i8* %[[VBTABLE]], i32 4 -// CHECK: %[[VBENTRY:.*]] = bitcast i8* %[[VBENTRY8]] to i32* +// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i32** +// CHECK: %[[VBTABLE:.*]] = load i32** %[[VBPTR8]] +// CHECK: %[[VBENTRY:.*]] = getelementptr inbounds i32* %[[VBTABLE]], i32 1 // CHECK: %[[VBOFFSET32:.*]] = load i32* %[[VBENTRY]] // CHECK: %[[VBOFFSET:.*]] = add nsw i32 0, %[[VBOFFSET32]] // CHECK: %[[VBASE_i8:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 %[[VBOFFSET]] @@ -161,10 +159,9 @@ void call_vbase_bar(B *obj) { // // CHECK: %[[OBJ_i8:.*]] = bitcast %struct.B* %[[OBJ]] to i8* // CHECK: %[[VBPTR:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 0 -// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i8** -// CHECK: %[[VBTABLE:.*]] = load i8** %[[VBPTR8]] -// CHECK: %[[VBENTRY8:.*]] = getelementptr inbounds i8* %[[VBTABLE]], i32 4 -// CHECK: %[[VBENTRY:.*]] = bitcast i8* %[[VBENTRY8]] to i32* +// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i32** +// CHECK: %[[VBTABLE:.*]] = load i32** %[[VBPTR8]] +// CHECK: %[[VBENTRY:.*]] = getelementptr inbounds i32* %[[VBTABLE]], i32 1 // CHECK: %[[VBOFFSET32:.*]] = load i32* %[[VBENTRY]] // CHECK: %[[VBOFFSET:.*]] = add nsw i32 0, %[[VBOFFSET32]] // CHECK: %[[VBASE:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 %[[VBOFFSET]] @@ -181,10 +178,9 @@ void delete_B(B *obj) { delete obj; // CHECK: %[[OBJ_i8:.*]] = bitcast %struct.B* %[[OBJ]] to i8* // CHECK: %[[VBPTR:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 0 -// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i8** -// CHECK: %[[VBTABLE:.*]] = load i8** %[[VBPTR8]] -// CHECK: %[[VBENTRY8:.*]] = getelementptr inbounds i8* %[[VBTABLE]], i32 4 -// CHECK: %[[VBENTRY:.*]] = bitcast i8* %[[VBENTRY8]] to i32* +// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i32** +// CHECK: %[[VBTABLE:.*]] = load i32** %[[VBPTR8]] +// CHECK: %[[VBENTRY:.*]] = getelementptr inbounds i32* %[[VBTABLE]], i32 1 // CHECK: %[[VBOFFSET32:.*]] = load i32* %[[VBENTRY]] // CHECK: %[[VBOFFSET:.*]] = add nsw i32 0, %[[VBOFFSET32]] // CHECK: %[[VBASE_i8:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 %[[VBOFFSET]] @@ -195,10 +191,9 @@ void delete_B(B *obj) { // // CHECK: %[[OBJ_i8:.*]] = bitcast %struct.B* %[[OBJ]] to i8* // CHECK: %[[VBPTR:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 0 -// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i8** -// CHECK: %[[VBTABLE:.*]] = load i8** %[[VBPTR8]] -// CHECK: %[[VBENTRY8:.*]] = getelementptr inbounds i8* %[[VBTABLE]], i32 4 -// CHECK: %[[VBENTRY:.*]] = bitcast i8* %[[VBENTRY8]] to i32* +// CHECK: %[[VBPTR8:.*]] = bitcast i8* %[[VBPTR]] to i32** +// CHECK: %[[VBTABLE:.*]] = load i32** %[[VBPTR8]] +// CHECK: %[[VBENTRY:.*]] = getelementptr inbounds i32* %[[VBTABLE]], i32 1 // CHECK: %[[VBOFFSET32:.*]] = load i32* %[[VBENTRY]] // CHECK: %[[VBOFFSET:.*]] = add nsw i32 0, %[[VBOFFSET32]] // CHECK: %[[VBASE_i8:.*]] = getelementptr inbounds i8* %[[OBJ_i8]], i32 %[[VBOFFSET]] |