This was coming in weird debug info that had variables (and hence
debug_locs) but was in GMLT mode (because it was missing the 13th field
of the compile_unit metadata) so no ranges were constructed. We should
always have at least one range for any CU with a debug_loc in it -
because the range should cover the debug_loc.
The assertion just ensures that the "!= 1" range case inside the
subsequent loop doesn't get entered for the case where there are no
ranges at all, which should never reach here in the first place.
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A bunch of test cases needed to be cleaned up for this, many my fault -
when implementid imported modules I updated test cases by simply
duplicating the prior metadata field - which wasn't always the empty
metadata entry.
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optional DWARF sections, so compiling with -g does not result in
different code being generated for PC-relative loads.
This is reapplying a diet r197922 (__TEXT-only).
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Cut back on the cargo cult. The order of __DATA sections doesn't affect
generated code.
This reverts commit r197922.
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(optional) DWARF sections, so compiling with -g does not result in
different code being generated.
rdar://problem/15623193
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We are going to drop debug info without a version number or with a different
version number, to make sure we don't crash when we see bitcode files with
different debug info metadata format.
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lowering only for load/stores to scalar allocas. The resulting values
confuse the backend and don't add anything because we can describe
array-allocas with a dbg.declare intrinsic just fine.
rdar://problem/15464571
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pointed to by a dbg_value belonging to a function argument is eliminated
during instruction selection.
rdar://problem/15094721.
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A DBG_VALUE is register-indirect iff the first operand is a register
_and_ the second operand is an immediate.
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the ARM build bots, and it adds a weird case to the test suite where
a test uses as inputs files in the parent directory.
Talked about this with Dave on IRC and he's fine with this approach even
though it isn't optimal.
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