http://llvm.org/bugs/show_bug.cgi?id=8871
Summary: incorrect alignment for struct containing double
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: LLVM Codegen
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
On x86, the alignment requirement for `double' is 8 bytes and this is correctly
reported by __alignof. However, for a struct containing a double, __alignof
reports 4:
struct hasdouble { double d; }; // alignment = 4
This is a problem on a system with alignment checking turned on. Note that it
correctly aligns the struct on x86_64. Also note that GCC has the same, in my
opinion incorrect, behaviour.
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