[LLVMbugs] [Bug 22756] movaps used for unaligned memory -march=slm -m32
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Mon Mar 2 18:45:29 PST 2015
http://llvm.org/bugs/show_bug.cgi?id=22756
Chih-Hung Hsieh <chh at google.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Chih-Hung Hsieh <chh at google.com> ---
Actually the error was not in the movaps instruction but the stack alignment.
The test case was reduced from Android Open Source, which has some module not
compiled with 16-byte stack alignment. Although the local variable tmp was
allocated with 16-byte alignment on the stack, the stack pointer was not.
The way to make such case work is to compile with the -mstackrealign flag.
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