http://llvm.org/bugs/show_bug.cgi?id=19723
Bug ID: 19723
Summary: Second stage bootstrap failure after r207606
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
r207606 has broken stage2 bootstrap on openSUSE 13.1 i586/x86-64 with
libcxx/libcxxabi enabled:
[ 723s] FAILED: /home/abuild/rpmbuild/BUILD/llvm/stage1/bin/clang++
-DLLVMSupport_EXPORTS -DNDEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -stdlib=libc++ -fPIC
-fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings
-Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default
-Wnon-virtual-dtor -std=c++11 -fcolor-diagnostics -ffunction-sections
-fdata-sections -O2 -g -DNDEBUG -fPIC -Ilib/Support -I../lib/Support -Iinclude
-I../include -fno-exceptions -MMD -MT
lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o -MF
lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o.d -o
lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o -c
../lib/Support/Allocator.cpp
[ 723s] In file included from ../lib/Support/Allocator.cpp:14:
[ 723s] ../include/llvm/Support/Allocator.h:421:65: error: 'S' does not refer
to a value
[ 723s] Size, std::min((size_t)llvm::NextPowerOf2(Size), offsetof(S,
x)));
[ 723s] ^
[ 723s] ../include/llvm/Support/Allocator.h:411:10: note: declared here
[ 723s] struct S {
[ 723s] ^
[ 723s] 1 error generated.
The difference between non-working and working preprocessed file is:
@@ -36617,7 +36628,7 @@
} x;
};
return Allocator.Allocate(
- Size, std::min((size_t)llvm::NextPowerOf2(Size), offsetof(S, x)));
+ Size, std::min((size_t)llvm::NextPowerOf2(Size), __builtin_offsetof(S,
x)));
}
Reverting r207606 fixes the problem.
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