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Author SHA1 Message Date
Tim Northover fb26d9a286 MIR: remove explicit "noVRegs" property. 
We can infer this from the incoming MIR, so there's no reason to
represent it with a special flag.

llvm-svn: 304246
 2017-05-30 21:28:57 +00:00
Adrian Prantl fb31da1306 Don't generate line&scope debug info for meta-instructions. 
MachineInstructions that don't generate any code (such as
IMPLICIT_DEFs) should not generate any debug info either.

Fixes PR33107.

https://bugs.llvm.org/show_bug.cgi?id=33107

This reapplies r303566 without any modifications. The stage2 build
failures persisted even after reverting this patch, and looking back
through history, it looks like these tests are flaky.

llvm-svn: 303575
 2017-05-22 20:47:09 +00:00
Adrian Prantl 334a130a6f Revert "Don't generate line&scope debug info for meta-instructions." 
This reverts commit r303566 while investigating a stage2 buildbot failure.

llvm-svn: 303570
 2017-05-22 18:50:12 +00:00
Adrian Prantl 4c047f8931 Don't generate line&scope debug info for meta-instructions. 
MachineInstructions that don't generate any code (such as
IMPLICIT_DEFs) should not generate any debug info either.

Fixes PR33107.

https://bugs.llvm.org/show_bug.cgi?id=33107

llvm-svn: 303566
 2017-05-22 16:21:02 +00:00