[LLVMbugs] [Bug 11770] New: missing sret in some cases

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Jan 16 08:21:08 PST 2012


             Bug #: 11770
           Summary: missing sret in some cases
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: rafael.espindola at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


typedef struct
  long long int quot;
  long long int rem;
} lldiv_t;

#ifdef foo
lldiv_t lldiv(long long int num) __attribute__ ((weak, alias ("_lldiv")));

lldiv_t _lldiv(long long num)

without -Dfoo produces

define void @_lldiv(%struct.lldiv_t* noalias nocapture sret %agg.result,....

and with -Dfoo:
define void @_lldiv(%struct.lldiv_t* noalias nocapture %agg.result,...

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