Commit Graph

18 Commits

Author SHA1 Message Date
serge-sans-paille 71c3a5519d Cleanup includes: LLVMAnalysis
Number of lines output by preprocessor:
before: 1065940348
after:  1065307662

Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-cleanup
Differential Revision: https://reviews.llvm.org/D120659
2022-03-01 18:01:54 +01:00
Markus Lavin 1ac209ed76 [NPM] Added -print-pipeline-passes print params for a few passes.
Added '-print-pipeline-passes' printing of parameters for those passes
declared with *_WITH_PARAMS macro in PassRegistry.def.

Note that it only prints the parameters declared inside *_WITH_PARAMS as
in a few cases there appear to be additional parameters not parsable.

The following passes are now covered (i.e. all of those with *_WITH_PARAMS in
PassRegistry.def).

LoopExtractorPass - loop-extract
HWAddressSanitizerPass - hwsan
EarlyCSEPass - early-cse
EntryExitInstrumenterPass - ee-instrument
LowerMatrixIntrinsicsPass - lower-matrix-intrinsics
LoopUnrollPass - loop-unroll
AddressSanitizerPass - asan
MemorySanitizerPass - msan
SimplifyCFGPass - simplifycfg
LoopVectorizePass - loop-vectorize
MergedLoadStoreMotionPass - mldst-motion
GVN - gvn
StackLifetimePrinterPass - print<stack-lifetime>
SimpleLoopUnswitchPass - simple-loop-unswitch

Differential Revision: https://reviews.llvm.org/D109310
2021-09-15 08:34:04 +02:00
Peter Collingbourne 6f85225ef3 StackLifetime: Remove asserts for multiple lifetime intrinsics.
According to the langref, it is valid to have multiple consecutive
lifetime start or end intrinsics on the same object.

For llvm.lifetime.start:
"If ptr [...] is a stack object that is already alive, it simply
fills all bytes of the object with poison."

For llvm.lifetime.end:
"Calling llvm.lifetime.end on an already dead alloca is no-op."

However, we currently fail an assertion in such cases. I've observed
the assertion failure when the loop vectorization pass duplicates
the intrinsic.

We can conservatively handle these intrinsics by ignoring all but
the first one, which can be implemented by removing the assertions.

Differential Revision: https://reviews.llvm.org/D108337
2021-08-18 18:45:28 -07:00
dongAxis 1fd7dc4074 When dumping results of StackLifetime, it will print the following
log:

BB  [7, 8): begin {}, end {}, livein {}, liveout {}
BB  [1, 2): begin {}, end {}, livein {}, liveout {}
...

But it is not convenient to know what the basic block is.
So I add the basic block name to it.

Reviewed By: vitalybuka
TestPlan: check-llvm
Differential Revision: https://reviews.llvm.org/D87152
2020-09-07 11:43:16 +08:00
Vitaly Buka a40660551e [StackSafety] Ignore allocas with partial lifetime markers
Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D86672
2020-08-27 13:54:41 -07:00
Vitaly Buka e10e7829bf [StackSafety] Skip ambiguous lifetime analysis
If we can't identify alloca used in lifetime marker we
need to assume to worst case scenario.

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D84630
2020-08-16 18:05:52 -07:00
Vitaly Buka 7547508b7a Revert "[StackSafety] Skip ambiguous lifetime analysis"
This reverts commit 0b2616a804.

Crashes with safe-stack.
2020-08-07 14:02:50 -07:00
Vitaly Buka 0b2616a804 [StackSafety] Skip ambiguous lifetime analysis
If we can't identify alloca used in lifetime marker we
need to assume to worst case scenario.

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D84630
2020-08-06 19:10:33 -07:00
Vitaly Buka 3d8149db3c [StackSafety,NFC] Don't rerun on LiveIn change 2020-06-19 21:29:31 -07:00
Vitaly Buka 0e1bdeafc9 [StackSafety,NFC] Fix comment 2020-06-19 03:11:13 -07:00
Vitaly Buka f224f3d0f2 [StackSafety] Add StackLifetime::isAliveAfter
This function is going to be added into StackSafety checks.
This patch uses function in ::print implementation to make sure
that it works as expected.
2020-06-19 02:32:17 -07:00
Vitaly Buka 306c257b00 [SafeStack,NFC] Print liveness for all instrunctions 2020-06-19 02:32:17 -07:00
Vitaly Buka 20b1094a04 [StackSafety,NFC] Replace map with vector
We don't need to lookup InstructionNumbering by number, so
we can use vector with index as assigned number.
2020-06-19 02:32:17 -07:00
Vitaly Buka 7b27c09f63 [StackSafety,NFC] Don't test terminators
Code does not track terminators and do not expose them through interface.
State there is just a state of the last instruction or entry.
So this information is just redundant and doesn't need to be tested.
2020-06-19 02:32:17 -07:00
Vitaly Buka fcd67665a8 [StackSafety] Add "Must Live" logic
Summary:
Extend StackLifetime with option to calculate liveliness
where alloca is only considered alive on basic block entry
if all non-dead predecessors had it alive at terminators.

Depends on D82043.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D82124
2020-06-18 16:53:37 -07:00
Vitaly Buka f672791e08 [StackSafety] Add pass for StackLifetime testing
Summary: lifetime.ll is a copy of SafeStack/X86/coloring2.ll

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: hiraditya, mgrang, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D82043
2020-06-18 16:34:18 -07:00
Vitaly Buka d812efb121 [SafeStack,NFC] Fix names after files move
Summary: Depends on D81831.

Reviewers: eugenis, pcc

Reviewed By: eugenis

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D81832
2020-06-17 01:08:40 -07:00
Vitaly Buka 6754a0e2ed [SafeStack,NFC] Move SafeStackColoring code
Summary:
This code is going to be used in StackSafety.
This patch is file move with minimal changes. Identifiers
will be fixed in the followup patch.

Reviewers: eugenis, pcc

Reviewed By: eugenis

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D81831
2020-06-17 01:07:47 -07:00