Commit Graph

3 Commits

Author SHA1 Message Date
Quentin Colombet 545e558b82 [MIR] Print on the given output instead of stderr.
Currently the MIR framework prints all its outputs (errors and actual
representation) on stderr.

This patch fixes that by printing the regular output in the output
specified with -o.

Differential Revision: http://reviews.llvm.org/D22251

llvm-svn: 275314
2016-07-13 20:36:03 +00:00
Tim Northover 1d106c5fc2 tests: accept different TargetOpcode values.
These tests don't actually care about the internal opcode number, but have to
be updated whenever we add a new one for GlobalISel. That's bad.

llvm-svn: 274774
2016-07-07 17:51:42 +00:00
Sanjoy Das e57bf680ec [ImplicitNullChecks] Hoist trivial depdendencies if possible
When trying to convert a loading instruction into a FAULTING_LOAD, we
sometimes face code like this:

  if %R10 is not null:
    %R9<def> = MOV32ri Immediate
    %R9<def, tied> = AND32rm %R9, 0x20(%R10)
  else:
    goto TRAP

In these cases we would like to use the AND32rm instruction as the
faulting operation by hoisting the "depedency" def-ing %R9 also above
the control flow, transforming the program into:

  %R9<def> = MOV32ri Immediate
  %R9<def, tied> = FAULTING_LOAD_OP(AND32rm %R9, 0x20(%R10), FailPath: TRAP)

This change teaches ImplicitNullChecks to do the above, when safe.

llvm-svn: 273501
2016-06-22 22:16:51 +00:00