| Commit message (Collapse) | Author | Age |
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PR19608 was filed to find a suitable testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207569 91177308-0d34-0410-b5e6-96231b3b80d8
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clang directly from the LLVM test suite! That doesn't work. I've
followed up on the review thread to try and get a viable solution sorted
out, but trying to get the tree clean here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207462 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207394 91177308-0d34-0410-b5e6-96231b3b80d8
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more than 1 instruction. The caller need to be aware of this
and adjust instruction iterators accordingly.
rdar://16679376
Repaired r207302.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207309 91177308-0d34-0410-b5e6-96231b3b80d8
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have been reported.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207303 91177308-0d34-0410-b5e6-96231b3b80d8
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more than 1 instruction. The caller need to be aware of this
and adjust instruction iterators accordingly.
rdar://16679376
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207302 91177308-0d34-0410-b5e6-96231b3b80d8
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Consider this use from the new testcase:
LSR Use: Kind=ICmpZero, Offsets={0}, widest fixup type: i32
reg({1000,+,-1}<nw><%for.body>)
-3003 + reg({3,+,3}<nw><%for.body>)
-1001 + reg({1,+,1}<nuw><nsw><%for.body>)
-1000 + reg({0,+,1}<nw><%for.body>)
-3000 + reg({0,+,3}<nuw><%for.body>)
reg({-1000,+,1}<nw><%for.body>)
reg({-3000,+,3}<nsw><%for.body>)
This is the last use we consider for a solution in SolveRecurse, so CurRegs is
a large set. (CurRegs is the set of registers that are needed by the
previously visited uses in the in-progress solution.)
ReqRegs is {
{3,+,3}<nw><%for.body>,
{1,+,1}<nuw><nsw><%for.body>
}
This is the intersection of the regs used by any of the formulas for the
current use and CurRegs.
Now, the code requires a formula to contain *all* these regs (the comment is
simply wrong), otherwise the formula is immediately disqualified. Obviously,
no formula for this use contains two regs so they will all get disqualified.
The fix modifies the check to allow the formula in this case. The idea is
that neither of these formulae is introducing any new registers which is the
point of this early pruning as far as I understand.
In terms of set arithmetic, we now allow formulas whose used regs are a subset
of the required regs not just the other way around.
There are few more loops in the test-suite that are now successfully LSRed. I
have benchmarked those and found very minimal change.
Fixes <rdar://problem/13965777>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207271 91177308-0d34-0410-b5e6-96231b3b80d8
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It's fishy to be changing the `std::vector<>` owned by the iterator, and
no one actual does it, so I'm going to remove the ability in a
subsequent commit. First, update the users.
<rdar://problem/14292693>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207252 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207196 91177308-0d34-0410-b5e6-96231b3b80d8
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These places are inconsequential in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207021 91177308-0d34-0410-b5e6-96231b3b80d8
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In the case where the constant comes from a cloned cast instruction, the
materialization code has to go before the cloned cast instruction.
This commit fixes the method that finds the materialization insertion point
by making it aware of this case.
This fixes <rdar://problem/15532441>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206913 91177308-0d34-0410-b5e6-96231b3b80d8
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debugging. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206912 91177308-0d34-0410-b5e6-96231b3b80d8
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definition below all of the header #include lines, lib/Transforms/...
edition.
This one is tricky for two reasons. We again have a couple of passes
that define something else before the includes as well. I've sunk their
name macros with the DEBUG_TYPE.
Also, InstCombine contains headers that need DEBUG_TYPE, so now those
headers #define and #undef DEBUG_TYPE around their code, leaving them
well formed modular headers. Fixing these headers was a large motivation
for all of these changes, as "leaky" macros of this form are hard on the
modules implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206844 91177308-0d34-0410-b5e6-96231b3b80d8
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The -tailcallelim pass should be checking if byval or inalloca args can
be captured before marking calls as tail calls. This was the real root
cause of PR7272.
With a better fix in place, revert the inliner change from r105255. The
test case it introduced still passes and has been moved to
test/Transforms/Inline/byval-tail-call.ll.
Reviewers: chandlerc
Differential Revision: http://reviews.llvm.org/D3403
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206789 91177308-0d34-0410-b5e6-96231b3b80d8
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Cleanup only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206710 91177308-0d34-0410-b5e6-96231b3b80d8
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lib/Analysis/IPA/InlineCost.cpp | 18 ------------------
lib/Analysis/RegionPass.cpp | 1 -
lib/Analysis/TypeBasedAliasAnalysis.cpp | 1 -
lib/Transforms/Scalar/LoopUnswitch.cpp | 21 ---------------------
lib/Transforms/Utils/LCSSA.cpp | 2 --
lib/Transforms/Utils/LoopSimplify.cpp | 6 ------
utils/TableGen/AsmWriterEmitter.cpp | 13 -------------
utils/TableGen/DFAPacketizerEmitter.cpp | 7 -------
utils/TableGen/IntrinsicEmitter.cpp | 2 --
9 files changed, 71 deletions(-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206506 91177308-0d34-0410-b5e6-96231b3b80d8
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Implement DebugInfoVerifier, which steals verification relying on
DebugInfoFinder from Verifier.
- Adds LegacyDebugInfoVerifierPassPass, a ModulePass which wraps
DebugInfoVerifier. Uses -verify-di command-line flag.
- Change verifyModule() to invoke DebugInfoVerifier as well as
Verifier.
- Add a call to createDebugInfoVerifierPass() wherever there was a
call to createVerifierPass().
This implementation as a module pass should sidestep efficiency issues,
allowing us to turn debug info verification back on.
<rdar://problem/15500563>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206300 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206266 91177308-0d34-0410-b5e6-96231b3b80d8
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Also updated as many loops as I could find using df_begin/idf_begin -
strangely I found no uses of idf_begin. Is that just used out of tree?
Also a few places couldn't use df_begin because either they used the
member functions of the depth first iterators or had specific ordering
constraints (I added a comment in the latter case).
Based on a patch by Jim Grosbach. (Jim - you just had iterator_range<T>
where you needed iterator_range<idf_iterator<T>>)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206016 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205899 91177308-0d34-0410-b5e6-96231b3b80d8
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This code is no longer usefull, because we only compute and use the
IDom once. There is no benefit in caching it anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205498 91177308-0d34-0410-b5e6-96231b3b80d8
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In preparation for an upcoming commit implementing unrolling preferences for
x86, this adds additional fields to the UnrollingPreferences structure:
- PartialThreshold and PartialOptSizeThreshold - Like Threshold and
OptSizeThreshold, but used when not fully unrolling. These are necessary
because we need different thresholds for full unrolling from those used when
partially unrolling (the full unrolling thresholds are generally going to be
larger).
- MaxCount - A cap on the unrolling factor when partially unrolling. This can
be used by a target to prevent the unrolled loop from exceeding some
resource limit independent of the loop size (such as number of branches).
There should be no functionality change for any in-tree targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205347 91177308-0d34-0410-b5e6-96231b3b80d8
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The generic (concatenation) loop unroller is currently placed early in the
standard optimization pipeline. This is a good place to perform full unrolling,
but not the right place to perform partial/runtime unrolling. However, most
targets don't enable partial/runtime unrolling, so this never mattered.
However, even some x86 cores benefit from partial/runtime unrolling of very
small loops, and follow-up commits will enable this. First, we need to move
partial/runtime unrolling late in the optimization pipeline (importantly, this
is after SLP and loop vectorization, as vectorization can drastically change
the size of a loop), while keeping the full unrolling where it is now. This
change does just that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205264 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts commit r203553, and follow-up commits r203558 and r203574.
I will follow this up on the mailinglist to do it in a way that won't
cause subtle PRE bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205009 91177308-0d34-0410-b5e6-96231b3b80d8
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by Björn Steinbrink!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204876 91177308-0d34-0410-b5e6-96231b3b80d8
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collectConstantCandidates method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204758 91177308-0d34-0410-b5e6-96231b3b80d8
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found with a smarter version of -Wunused-member-function that I'm playwing with.
Appologies in advance if I removed someone's WIP code.
include/llvm/CodeGen/MachineSSAUpdater.h | 1
include/llvm/IR/DebugInfo.h | 3
lib/CodeGen/MachineSSAUpdater.cpp | 10 --
lib/CodeGen/PostRASchedulerList.cpp | 1
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 10 --
lib/IR/DebugInfo.cpp | 12 --
lib/MC/MCAsmStreamer.cpp | 2
lib/Support/YAMLParser.cpp | 39 ---------
lib/TableGen/TGParser.cpp | 16 ---
lib/TableGen/TGParser.h | 1
lib/Target/AArch64/AArch64TargetTransformInfo.cpp | 9 --
lib/Target/ARM/ARMCodeEmitter.cpp | 12 --
lib/Target/ARM/ARMFastISel.cpp | 84 --------------------
lib/Target/Mips/MipsCodeEmitter.cpp | 11 --
lib/Target/Mips/MipsConstantIslandPass.cpp | 12 --
lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp | 21 -----
lib/Target/NVPTX/NVPTXISelDAGToDAG.h | 2
lib/Target/PowerPC/PPCFastISel.cpp | 1
lib/Transforms/Instrumentation/AddressSanitizer.cpp | 2
lib/Transforms/Instrumentation/BoundsChecking.cpp | 2
lib/Transforms/Instrumentation/MemorySanitizer.cpp | 1
lib/Transforms/Scalar/LoopIdiomRecognize.cpp | 8 -
lib/Transforms/Scalar/SCCP.cpp | 1
utils/TableGen/CodeEmitterGen.cpp | 2
24 files changed, 2 insertions(+), 261 deletions(-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204560 91177308-0d34-0410-b5e6-96231b3b80d8
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The cleanup code that removes dead cast instructions only removed them from the
basic block, but didn't delete them. This fix erases them now too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204538 91177308-0d34-0410-b5e6-96231b3b80d8
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A PHI node usually has only one value/basic block pair per incoming basic block.
In the case of a switch statement it is possible that a following PHI node may
have more than one such pair per incoming basic block. E.g.:
%0 = phi i64 [ 123456, %case2 ], [ 654321, %Entry ], [ 654321, %Entry ]
This is valid and the verfier doesn't complain, because both values are the
same.
Constant hoisting materializes the constant for each operand separately and the
value is still the same, but the variable names have changed. As a result the
verfier can't recognize anymore that they are the same value and complains.
This fix adds special update code for PHI node in constant hoisting to prevent
this corner case.
This fixes <rdar://problem/16394449>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204537 91177308-0d34-0410-b5e6-96231b3b80d8
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CodeGen treats allocas outside the entry block as dynamically sized
stack objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204473 91177308-0d34-0410-b5e6-96231b3b80d8
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Extend the target hook to take also the operand index into account when
calculating the cost of the constant materialization.
Related to <rdar://problem/16381500>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204435 91177308-0d34-0410-b5e6-96231b3b80d8
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Related to <rdar://problem/16381500>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204434 91177308-0d34-0410-b5e6-96231b3b80d8
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instructions.
Originally the algorithm would search for expensive constants and track their
users, which could be instructions and constant expressions. This change only
tracks the constants for instructions, but constant expressions are indirectly
covered too. If an operand is an constant expression, then we look through the
expression to find anny expensive constants.
The algorithm keep now track of the instruction and the operand index where the
constant is used. This allows more precise hoisting of constant materialization
code for PHI instructions, because we only hoist to the basic block of the
incoming operand. Before we had to find the idom of all PHI operands and hoist
the materialization code there.
This also makes updating of instructions easier. Before we had to keep track of
the original constant, find it in the instructions, and then replace it. Now we
can just simply update the operand.
Related to <rdar://problem/16381500>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204433 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204432 91177308-0d34-0410-b5e6-96231b3b80d8
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keep track of constant candidates.
This simplifies working with the constant candidates and removes the tight
coupling between the map and the vector.
Related to <rdar://problem/16381500>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204431 91177308-0d34-0410-b5e6-96231b3b80d8
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I will break this up into smaller pieces for review and recommit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204393 91177308-0d34-0410-b5e6-96231b3b80d8
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This commit extends the coverage of the constant hoisting pass, adds additonal
debug output and updates the function names according to the style guide.
Related to <rdar://problem/16381500>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204389 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The compiler does not always generate linkage names. If a function
has been inlined and its body elided, its linkage name may not be
generated.
When the binary executes, the profiler will use its unmangled name
when attributing samples. This results in unmangled names in the
input profile.
We are currently failing hard when this happens. However, in this case
all that happens is that we fail to attribute samples to the inlined
function. While this means fewer optimization opportunities, it should
not cause a compilation failure.
This patch accepts all valid function names, regardless of whether
they were mangled or not.
Reviewers: chandlerc
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D3087
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204142 91177308-0d34-0410-b5e6-96231b3b80d8
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The "noduplicate" attribute of call instructions is sometimes queried directly
and sometimes through the cannotDuplicate() predicate. This patch streamlines
all queries to use the cannotDuplicate() predicate. It also adds this predicate
to InvokeInst, to mirror what CallInst has.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204049 91177308-0d34-0410-b5e6-96231b3b80d8
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While technically correct, we generally disallow any instance of named
Twines due to their subtlety.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204016 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204013 91177308-0d34-0410-b5e6-96231b3b80d8
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Also convert a horrible hash function to use our hashing infrastructure.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204008 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203996 91177308-0d34-0410-b5e6-96231b3b80d8
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Twine was too short.
FIXME: DiagnosticInfoSampleProfile should not hold Twine&.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203990 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203977 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The sample profiler pass emits several error messages. Instead of
just aborting the compiler with report_fatal_error, we can emit
better messages using DiagnosticInfo.
This adds a new sub-class of DiagnosticInfo to handle the sample
profiler.
Reviewers: chandlerc, qcolombet
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D3086
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203976 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203739 91177308-0d34-0410-b5e6-96231b3b80d8
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After r203553 overflow intrinsics and their non-intrinsic (normal)
instruction get hashed to the same value. This patch prevents PRE from
moving an instruction into a predecessor block, and trying to add a phi
node that gets two different types (the intrinsic result and the
non-intrinsic result), resulting in a failing assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203574 91177308-0d34-0410-b5e6-96231b3b80d8
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My last commit did not add the indexes to the hashed value for
extractvalue. Adding that back in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203558 91177308-0d34-0410-b5e6-96231b3b80d8
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When an overflow intrinsic is followed by a non-overflow instruction,
replace the latter with an extract. For example:
%sadd = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
%sadd3 = add i32 %a, %b
Here the add statement will be replaced by an extract.
When an overflow intrinsic follows a non-overflow instruction, a clone
of the intrinsic is inserted before the normal instruction, which makes
it the same as the previous case. Subsequent runs of GVN can then clean
up the duplicate instructions and insert the extract.
This fixes PR8817.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203553 91177308-0d34-0410-b5e6-96231b3b80d8
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