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3 Commits

Author SHA1 Message Date
Matt Arsenault 0d0fce42b0 GlobalISel: Preserve load/store metadata in IRTranslator 
This was dropping the invariant metadata on dead argument loads, so
they weren't deleted.

Atomics still need to be fixed the same way. Also, apparently store
was never preserving dereferencable which should also be fixed.
 2020-01-16 13:49:43 -05:00
Petr Pavlu d336c4eb61 [GlobalISel] Fix test irtranslator-stackprotect-check.ll 
Fix for commit r347862. Use correct AArch64 triple in test
CodeGen/AArch64/GlobalISel/irtranslator-stackprotect-check.ll.

llvm-svn: 348111
 2018-12-03 09:28:28 +00:00
Petr Pavlu 6bb80512db [GlobalISel] Fix insertion of stack-protector epilogue 
* Tell the StackProtector pass to generate the epilogue instrumentation
  when GlobalISel is enabled because GISel currently does not implement
  the same deferred epilogue insertion as SelectionDAG.
* Update StackProtector::InsertStackProtectors() to find a stack guard
  slot by searching for the llvm.stackprotector intrinsic when the
  prologue was not created by StackProtector itself but the pass still
  needs to generate the epilogue instrumentation. This fixes a problem
  when the pass would abort because the stack guard AllocInst pointer
  was null when generating the epilogue -- test
  CodeGen/AArch64/GlobalISel/arm64-irtranslator-stackprotect.ll.

Differential Revision: https://reviews.llvm.org/D54518

llvm-svn: 347862
 2018-11-29 13:22:53 +00:00