[LLVMbugs] [Bug 13504] New: INLINEASM doesn't implement mayLoad and mayStore

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13504

             Bug #: 13504
           Summary: INLINEASM doesn't implement mayLoad and mayStore
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: sergey.galanov at intel.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 8981
  --> http://llvm.org/bugs/attachment.cgi?id=8981
Example code

mayLoad and mayStore always return false for INLINEASM instructions, even when
there is a memory constraint.
One consequence is that post-RA instruction scheduler builds incorrect graph
for an example from attachment (it lacks the required MOV32mr->INLINEASM
dependence).

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