Commit Graph

5 Commits

Author SHA1 Message Date
Sanjoy Das ab0626e35f Nonnull elements in OperandBundleCallSites are not all Instructions
`CloneAndPruneIntoFromInst` sometimes RAUW's dead instructions with
`undef` before erasing them (to avoid deleting instructions that still
have uses).  This changes the `WeakVH` in `OperandBundleCallSites` to
hold an `undef`, and we need to guard for this situation in eventuality
in `llvm::InlineFunction`.

llvm-svn: 256110
2015-12-19 22:40:28 +00:00
Sanjoy Das b496834f8e [Deopt bundles] Fix a test case
The `CHECK-NOT` line was incorrect, and would not have caught a
breakage.

llvm-svn: 256109
2015-12-19 22:40:22 +00:00
Sanjoy Das 9abfb0b429 Use WeakVH to keep track of calls with operand bundles in CloneCodeInfo
`CloneAndPruneIntoFromInst` can DCE instructions after cloning them into
the new function, and so an AssertingVH is too strong.  This change
switches CloneCodeInfo to use a std::vector<WeakVH>.

llvm-svn: 255148
2015-12-09 20:33:52 +00:00
Sanjoy Das b8dced5dfa Don't drop attributes when inlining through "deopt" operand bundles
Test case attached (test case also checks that we don't drop the calling
convention, but that functionality was correct before this patch).

llvm-svn: 255088
2015-12-09 01:01:28 +00:00
Sanjoy Das 2d16145acf Teach the inliner to track deoptimization state
Summary:
This change teaches LLVM's inliner to track and suitably adjust
deoptimization state (tracked via deoptimization operand bundles) as it
inlines through call sites.  The operation is described in more detail
in the LangRef changes.

Reviewers: reames, majnemer, chandlerc, dexonsmith

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14552

llvm-svn: 253438
2015-11-18 06:23:38 +00:00