[LLVMbugs] [Bug 785] NEW: [mac os/x86] Structures <= 8 bytes should be returned in registers

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=785

           Summary: [mac os/x86] Structures <= 8 bytes should be returned in
                    registers
           Product: tools
           Version: 1.7
          Platform: PC
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: llvm-gcc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sabre at nondot.org


Consider this example:
struct X { double D; };
struct Y { struct X x;};

struct Y bar();
void foo(struct Y *P) {
  *P = bar();
}

The result of bar() should be in ST0 on Darwin/x86.

-Chris



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