After the recent data-structure improvements, a couple of debugging statements
were broken (printing pointer values).
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We want vectorization to happen at -g. Ignore calls to the dbg.value intrinsic
and don't transfer them to the vectorized code.
radar://13378964
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The strlen+memcmp was hidden in a call to StringRef::operator==. We check if
there are any null bytes in the string upfront so we can simplify the comparison
Small speedup when compiling code with many function calls.
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it. Fortunately, versions of gcov that predate the extra checksum also ignore
any extra data, so this isn't a problem. There will be a matching commit in
compiler-rt.
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PHIs are allowed to have multiple operand pairs per predecessor, and
this code works just fine when it happens.
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Summary:
Statistics are still available in Release+Asserts (any +Asserts builds),
and stats can also be turned on with LLVM_ENABLE_STATS.
Move some of the FastISel stats that were moved under DEBUG()
back out of DEBUG(), since stats are disabled across the board now.
Many tests depend on grepping "-stats" output. Move those into
a orig_dir/Stats/. so that they can be marked as unsupported
when building without statistics.
Differential Revision: http://llvm-reviews.chandlerc.com/D486
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The getOperandPtr utility already bounds checks, but allows one-off-the-end.
This assert should catch the cases that could previously have been dereferencing
these one-off-the-end pointer. Happily, no cases of this came up with this
change.
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This pass hasn't been touched in two years & would fail with assertions against
the current debug info metadata format (the only test case for it still uses a
many-versions old debug info metadata format)
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To find the last use of a register unit, start from the bottom and scan
upwards until a user is found.
<rdar://problem/13353090>
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fold selectcc (selectcc x, y, a, b, cc), b, a, b, setne ->
selectcc x, y, a, b, cc
Reviewed-by: Christian König <christian.koenig@amd.com>
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Two changes:
1. Prefer SET* instructions when possible
2. Handle the CND*_INT case with floating-point args
Reviewed-by: Christian König <christian.koenig@amd.com>
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LegalizeDAG.cpp uses the value of the comparison operands when checking
the legality of BR_CC, so DAGCombiner should do the same.
v2:
- Expand more BR_CC value types for NVPTX
v3:
- Expand correct BR_CC value types for Hexagon, Mips, and XCore.
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This is certainly not the last word on scheduling for this target, but
right now this allows a few apps to run / finish with radeonsi, most
notably UT2004 / Lightsmark. They fail to compile some shaders with the
default scheduler because it ends up trying to spill registers, which
we don't support yet (and which is probably a bad idea in general for
performance if it can be avoided).
NOTE: This is a candidate for the Mesa stable branch.
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
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This verifies live intervals both before and after scheduling. It's
useful for anyone hacking on live interval update.
Note that we don't yet pass verification all the time. We don't yet
handle updating nonallocatable live intervals perfectly.
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