[Bug 49495] New: save_fpu: Conditional jump or move depends on uninitialized values

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49495

            Bug ID: 49495
           Summary: save_fpu: Conditional jump or move depends on
                    uninitialized values
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ntdll
          Assignee: wine-bugs at winehq.org
          Reporter: jeffersoncarpenter2 at gmail.com
      Distribution: ---

Created attachment 67624
  --> https://bugs.winehq.org/attachment.cgi?id=67624
Configure output.

Steps to reproduce

* Build wine commit 8a169390c9 -- or commit 359ee2ecc2 with patch
https://bugs.winehq.org/attachment.cgi?id=67623 applied for bug 49494. 
Configure output attached for the latter attached.
* Build 'int main() { return 0; }' with i686-w64-mingw-gcc
* Run under valgrind.  Valgrind output attached.

The first error is:

==26416== Conditional jump or move depends on uninitialised value(s)
==26416==    at 0x7BC84A16: save_fpu (signal_i386.c:274)
==26416==    by 0x7BC84F7B: raise_exception_full_context (signal_i386.c:476)
==26416==    by 0x7BC8503F: ??? (signal_i386.c:488)
==26416==    by 0x7B033DEB: RaiseException (debug.c:315)
==26416==    by 0x5CEFC70: RpcRaiseException (rpcrt4_main.c:214)
==26416==    by 0x5CB26A0: NdrSendReceive (ndr_clientserver.c:217)
==26416==    by 0x52B46B7: plugplay_send_event (plugplay_c.c:407)
==26416==    by 0x52AF612: send_devicechange (pnp.c:675)
==26416==    by 0x52AFB7D: IoSetDeviceInterfaceState (pnp.c:790)
==26416==    by 0x63D03FC: PNP_RemoveDevice (pnp.c:217)
==26416==    by 0x63D085A: HID_PNP_Dispatch (pnp.c:312)
==26416==    by 0x52A6EDC: IoCallDriver (ntoskrnl.c:1706)

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