awarzynski added inline comments.
================
Comment at: flang/test/Driver/mllvm_vs_mmlir.f90:17
+! MLLVM: flang (LLVM option parsing) [options]
+! MLLVM: --print-ir-after-all
+! MLLVM-NOT: --mlir-{{.*}}
----------------
awarzynski wrote:
> rriddle wrote:
> > awarzynski wrote:
> > > awarzynski wrote:
> > > > rovka wrote:
> > > > > rovka wrote:
> > > > > > Is this the most llvm-ish option we have? I'm concerned that MLIR
> > > > > > might also decide to add an option that sounds like this (and for
> > > > > > sure -print-ir-before-all is mentioned in the [[
> > > > > > https://mlir.llvm.org/getting_started/Debugging/ | MLIR docs ]]).
> > > > > > Is this the most llvm-ish option we have? I'm concerned that MLIR
> > > > > > might also decide to add an option that sounds like this (and for
> > > > > > sure -print-ir-before-all is mentioned in the [[
> > > > > > https://mlir.llvm.org/getting_started/Debugging/ | MLIR docs ]]).
> > > > >
> > > > > Right, I think that might be why the premerge tests are failing...
> > > > > Is this the most llvm-ish option we have?
> > > >
> > > > Sadly, most LLVM options have rather generic names that could at some
> > > > point be added in MLIR. Perhaps you'll spot something more suitable:
> > > >
> > > > ```lang=bash
> > > > USAGE: flang (LLVM option parsing) [options]
> > > >
> > > > OPTIONS:
> > > >
> > > > Color Options:
> > > >
> > > > --color - Use colors in
> > > > output (default=autodetect)
> > > >
> > > > General options:
> > > >
> > > > --aarch64-neon-syntax=<value> - Choose style of
> > > > NEON code to emit from AArch64 backend:
> > > > =generic - Emit generic
> > > > NEON assembly
> > > > =apple - Emit
> > > > Apple-style NEON assembly
> > > > --aarch64-use-aa - Enable the use of
> > > > AA during codegen.
> > > > --abort-on-max-devirt-iterations-reached - Abort when the
> > > > max iterations for devirtualization CGSCC repeat pass is reached
> > > > --allow-ginsert-as-artifact - Allow G_INSERT to
> > > > be considered an artifact. Hack around AMDGPU test infinite loops.
> > > > --always-execute-loop-body - force the body of
> > > > a loop to execute at least once
> > > > --array-constructor-initial-buffer-size=<uint> - set the
> > > > incremental array construction buffer size (default=32)
> > > > --cfg-hide-cold-paths=<number> - Hide blocks with
> > > > relative frequency below the given value
> > > > --cfg-hide-deoptimize-paths -
> > > > --cfg-hide-unreachable-paths -
> > > > --cost-kind=<value> - Target cost kind
> > > > =throughput - Reciprocal
> > > > throughput
> > > > =latency - Instruction
> > > > latency
> > > > =code-size - Code size
> > > > =size-latency - Code size and
> > > > latency
> > > > --debugify-level=<value> - Kind of debug
> > > > info to add
> > > > =locations - Locations only
> > > > =location+variables - Locations and
> > > > Variables
> > > > --debugify-quiet - Suppress verbose
> > > > debugify output
> > > > --default-kinds=<default-kind-string> - string to set
> > > > default kind values
> > > > --disable-i2p-p2i-opt - Disables
> > > > inttoptr/ptrtoint roundtrip optimization
> > > > --dot-cfg-mssa=<file name for generated dot file> - file name for
> > > > generated dot file
> > > > --enable-cse-in-irtranslator - Should enable CSE
> > > > in irtranslator
> > > > --enable-cse-in-legalizer - Should enable CSE
> > > > in Legalizer
> > > > --enable-gvn-memdep -
> > > > --enable-load-in-loop-pre -
> > > > --enable-load-pre -
> > > > --enable-loop-simplifycfg-term-folding -
> > > > --enable-name-compression - Enable
> > > > name/filename string compression
> > > > --enable-split-backedge-in-load-pre -
> > > > --experimental-debug-variable-locations - Use experimental
> > > > new value-tracking variable locations
> > > > --fdebug-dump-pre-fir - dump the Pre-FIR
> > > > tree prior to FIR generation
> > > > --fs-profile-debug-bw-threshold=<uint> - Only show debug
> > > > message if the source branch weight is greater than this value.
> > > > --fs-profile-debug-prob-diff-threshold=<uint> - Only show debug
> > > > message if the branch probility is greater than this value (in
> > > > percentage).
> > > > --gen-array-coor - in lowering
> > > > create ArrayCoorOp instead of CoordinateOp
> > > > --generate-merged-base-profiles - When generating
> > > > nested context-sensitive profiles, always generate extra base profile
> > > > for function with all its context profiles merged into it.
> > > > --inline-all - aggressively
> > > > inline everything
> > > > --instcombine-code-sinking - Enable code
> > > > sinking
> > > > --instcombine-guard-widening-window=<uint> - How wide an
> > > > instruction window to bypass looking for another guard
> > > > --instcombine-max-iterations=<uint> - Limit the maximum
> > > > number of instruction combining iterations
> > > > --instcombine-max-num-phis=<uint> - Maximum number
> > > > phis to handle in intptr/ptrint folding
> > > > --instcombine-max-sink-users=<uint> - Maximum number of
> > > > undroppable users for instruction sinking
> > > > --instcombine-maxarray-size=<uint> - Maximum array
> > > > size considered when doing a combine
> > > > --instcombine-negator-enabled - Should we attempt
> > > > to sink negations?
> > > > --instcombine-negator-max-depth=<uint> - What is the
> > > > maximal lookup depth when trying to check for viability of negation
> > > > sinking.
> > > > --kind-mapping=<kind-mapping-string> - kind mapping
> > > > string to set kind precision
> > > > --length-to-hash-string-literal=<ulong> - string literals
> > > > that exceed this length will use a hash value as their symbol name
> > > > --main-entry-name=<string> - override the name
> > > > of the default PROGRAM entry (may be helpful for using other runtimes)
> > > > --math-runtime=<value> - Select math
> > > > runtime version:
> > > > =fast - use pgmath fast
> > > > runtime
> > > > =relaxed - use pgmath
> > > > relaxed runtime
> > > > =precise - use pgmath
> > > > precise runtime
> > > > =llvm - only use LLVM
> > > > intrinsics (may be incomplete)
> > > > --matrix-default-layout=<value> - Sets the default
> > > > matrix layout
> > > > =column-major - Use
> > > > column-major layout
> > > > =row-major - Use row-major
> > > > layout
> > > > --mir-strip-debugify-only - Should
> > > > mir-strip-debug only strip debug info from debugified modules by default
> > > > --no-discriminators - Disable
> > > > generation of discriminator information.
> > > > --non-recursive-procedures - Make procedures
> > > > non-recursive by default. This was the default for all Fortran
> > > > standards prior to 2018.
> > > > --opaque-pointers - Use opaque
> > > > pointers
> > > > --outline-intrinsics - Lower all
> > > > intrinsic procedure implementation in their own functions
> > > > --safepoint-ir-verifier-print-only -
> > > > --sample-profile-check-record-coverage=<N> - Emit a warning if
> > > > less than N% of records in the input profile are matched to the IR.
> > > > --sample-profile-check-sample-coverage=<N> - Emit a warning if
> > > > less than N% of samples in the input profile are matched to the IR.
> > > > --sample-profile-max-propagate-iterations=<uint> - Maximum number of
> > > > iterations to go through when propagating sample block/edge weights
> > > > through the CFG.
> > > > --use-alloc-runtime - Lower allocations
> > > > to fortran runtime calls
> > > > --use-desc-for-alloc - Always use
> > > > descriptors for POINTER and ALLOCATABLE
> > > > --verify-legalizer-debug-locs=<value> - Verify that debug
> > > > locations are handled
> > > > =none - No verification
> > > > =legalizations - Verify
> > > > legalizations
> > > > =legalizations+artifactcombiners - Verify
> > > > legalizations and artifact combines
> > > > --verify-region-info - Verify region
> > > > info (time consuming)
> > > >
> > > > Generic Options:
> > > >
> > > > --help - Display available
> > > > options (--help-hidden for more)
> > > > --help-list - Display list of
> > > > available options (--help-list-hidden for more)
> > > > --version - Display the
> > > > version of this program
> > > > ```
> > > > Right, I think that might be why the premerge tests are failing...
> > >
> > > Doh, I updated the test before sending this, but forgot to re-run it :(
> > > Should be fixed now.
> > I'd be alright with a patch to MLIR that prefixed the pass manager options
> > with `mlir-`. The rest of our options (that are provided by libraries)
> > should already be prefixed with that AFAIK.
> Sounds like a plan, thanks for the suggestion!
See https://reviews.llvm.org/D123495
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D123297/new/
https://reviews.llvm.org/D123297
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