[LLVMbugs] [Bug 18112] New: arm call generates incorrect code

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Dec 2 08:01:14 PST 2013


            Bug ID: 18112
           Summary: arm call generates incorrect code
           Product: new-bugs
           Version: 3.3
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: johnruble at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 11644
  --> http://llvm.org/bugs/attachment.cgi?id=11644&action=edit
very small testcase demonstrating bug

the third param to a routine (follows a large pass-struct-by-value) doesn't
quite make it:

$ ./test_gcc 

addresses (caller): 0xbee27450 0xbee271f8 0xbee26fa0
addresses (callee): 0xbee27450 0xbee26d44 0xbee26fa0

$ ./test_clang 

addresses (caller): 0xbecfc450 0xbecfc1f8 0xbecfbfa0
addresses (callee): 0xbecfc450 0xbecfbd24 (nil)

(see attached testcase)

possibly related?:


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