Michael Kuperstein 098cd9fba7 [X86] Fix emitEpilogue() to make less assumptions about pops ...

This is the mirror image of r242395.
When X86FrameLowering::emitEpilogue() looks for where to insert the %esp addition that
deallocates stack space used for local allocations, it assumes that any sequence of pop
instructions from function exit backwards consists purely of restoring callee-save registers.

This may be false, since from some point backward, the pops may be clean-up of stack space
allocated for arguments to a call.

Patch by: amjad.aboud@intel.com
Differential Revision: http://reviews.llvm.org/D12688

llvm-svn: 247784

2015-09-16 11:18:25 +00:00

69 KiB

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