[LLVMbugs] [Bug 10138] New: Assertion with aggregate minimization

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Jun 14 17:19:41 PDT 2011


           Summary: Assertion with aggregate minimization
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: Pidgeot18 at gmail.com
                CC: llvmbugs at cs.uiuc.edu

The following file causes an error when compiling with clang++:
#include <string>
class outer {
    typedef struct {
        bool a;
        std::string b;
    } Aggregate;

    Aggregate getAgg() {
        return (Aggregate){false, ""};

int main() {
    outer tower;
    outer::Aggregate res = tower.getAgg();

clang: /src/llvm/tools/clang/lib/CodeGen/CGExprAgg.cpp:910: void
clang::CodeGen::CodeGenFunction::EmitAggregateCopy(llvm::Value*, llvm::Value*,
clang::QualType, bool): Assertion `(Record->hasTrivialCopyConstructor() ||
Record->hasTrivialCopyAssignment()) && "Trying to aggregate-copy a type without
a trivial copy " "constructor or assignment operator"' failed.

I'm not entirely sure which svn revision I'm on, but this is the output from
svn info:
jcranmer at xochiquetzal /src/llvm/tools/clang $ svn info
Path: .
URL: http://llvm.org/svn/llvm-project/cfe/trunk
Repository Root: http://llvm.org/svn/llvm-project
Repository UUID: 91177308-0d34-0410-b5e6-96231b3b80d8
Revision: 132484
Node Kind: directory
Schedule: normal
Last Changed Author: akirtzidis
Last Changed Rev: 132481
Last Changed Date: 2011-06-02 13:01:46 -0700 (Thu, 02 Jun 2011)

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