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7 Commits

Author SHA1 Message Date
Sanjoy Das 0272be206a Don't force SP-relative addressing for statepoints 
Summary:
...  when the offset is not statically known.

Prioritize addresses relative to the stack pointer in the stackmap, but
fallback gracefully to other modes of addressing if the offset to the
stack pointer is not a known constant.

Patch by Oscar Blumberg!

Reviewers: sanjoy

Subscribers: llvm-commits, majnemer, rnk, sanjoy, thanm

Differential Revision: http://reviews.llvm.org/D21259

llvm-svn: 272756
 2016-06-15 05:35:14 +00:00
Sanjoy Das 731c67fed2 Lower varargs correctly in deopt bundle lowering 
Earlier we were ignoring varargs in LowerCallSiteWithDeoptBundle because
populateCallLoweringInfo does not set CallLoweringInfo::IsVarArg.

llvm-svn: 264354
 2016-03-24 22:37:52 +00:00
Sanjoy Das 8f42b7b3cd Remove unnecessary redirect from test 
llvm-svn: 264308
 2016-03-24 17:18:00 +00:00
Sanjoy Das bfecef5e1b Remove unnecessary branch from test 
(Addresses post commit review by Reid Kleckner)

llvm-svn: 264083
 2016-03-22 18:45:41 +00:00
Sanjoy Das eb5037cadc Allow lowering call sites with both funclets and deopt state 
Lowering funclets is a no-op, so we can just go ahead and lower the
deopt state.

llvm-svn: 264078
 2016-03-22 18:10:39 +00:00
Sanjoy Das dd1d72ce92 Appease the windows buildbots 
The guess is that the stdout/stderr ordering may differ between windows
/ unix.

llvm-svn: 264019
 2016-03-22 02:11:57 +00:00
Sanjoy Das 38bfc22161 Add "first class" lowering for deopt operand bundles 
Summary:
After this change, deopt operand bundles can be lowered directly by
SelectionDAG into STATEPOINT instructions (which are then lowered to a
call or sequence of nop, with an associated __llvm_stackmaps entry0.
This obviates the need to round-trip deoptimization state through
gc.statepoint via RewriteStatepointsForGC.

Reviewers: reames, atrick, majnemer, JosephTremoulet, pgavlin

Subscribers: sanjoy, mcrosier, majnemer, llvm-commits

Differential Revision: http://reviews.llvm.org/D18257

llvm-svn: 264015
 2016-03-22 00:59:13 +00:00