kosarev created this revision.
kosarev added reviewers: rjmccall, hfinkel.
kosarev added a project: clang.
The new format requires to specify both the type of the access and its size.
This patch fixes setting access sizes for TBAA tags that denote accesses to
structure members. This fix affects all future TBAA metadata tests for the new
format, so I guess we don't need any special tests for this fix.
Repository:
rL LLVM
https://reviews.llvm.org/D41452
Files:
lib/CodeGen/CGExpr.cpp
Index: lib/CodeGen/CGExpr.cpp
===================================================================
--- lib/CodeGen/CGExpr.cpp
+++ lib/CodeGen/CGExpr.cpp
@@ -3790,8 +3790,10 @@
FieldTBAAInfo.Offset +=
Layout.getFieldOffset(field->getFieldIndex()) / CharWidth;
- // Update the final access type.
+ // Update the final access type and size.
FieldTBAAInfo.AccessType = CGM.getTBAATypeInfo(FieldType);
+ FieldTBAAInfo.Size =
+ getContext().getTypeSizeInChars(FieldType).getQuantity();
}
Address addr = base.getAddress();
Index: lib/CodeGen/CGExpr.cpp
===================================================================
--- lib/CodeGen/CGExpr.cpp
+++ lib/CodeGen/CGExpr.cpp
@@ -3790,8 +3790,10 @@
FieldTBAAInfo.Offset +=
Layout.getFieldOffset(field->getFieldIndex()) / CharWidth;
- // Update the final access type.
+ // Update the final access type and size.
FieldTBAAInfo.AccessType = CGM.getTBAATypeInfo(FieldType);
+ FieldTBAAInfo.Size =
+ getContext().getTypeSizeInChars(FieldType).getQuantity();
}
Address addr = base.getAddress();
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