Commit Graph

10 Commits

Author SHA1 Message Date
Frank Laub fffea2842d [MLIR] LLVM Dialect: add llvm.cmpxchg and improve llvm.atomicrmw custom parser
Summary:
Add a `llvm.cmpxchg` op as a counterpart to LLVM IR's `cmpxchg` instruction.
Note that the `weak`, `volatile`, and `syncscope` attributes are not yet supported.

This will be useful for upcoming parallel versions of affine.for and generally
for reduction-like semantics (especially for reductions that can't make use
of `atomicrmw`, e.g. `fmax`).

Reviewers: ftynse, nicolasvasilache

Reviewed By: ftynse

Subscribers: merge_guards_bot, jfb, mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, arpith-jacob, mgester, lucyrfox, liufengdb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D72995
2020-01-21 01:09:42 -08:00
Frank Laub 60a0c612df [MLIR] LLVM dialect: Add llvm.atomicrmw
Summary:
This op is the counterpart to LLVM's atomicrmw instruction. Note that
volatile and syncscope attributes are not yet supported.

This will be useful for upcoming parallel versions of `affine.for` and generally
for reduction-like semantics.

Differential Revision: https://reviews.llvm.org/D72741
2020-01-17 21:17:14 +01:00
MLIR Team 1012c492f0 Allow LLVM::ExtractElementOp to have non-i32 indices.
Also change the text format a bit, so that indices are braced by squares.

PiperOrigin-RevId: 282437095
2019-11-25 14:44:52 -08:00
Eric Schweitz 0d545921ea Add support for the LLVM FNeg instruction
Closes tensorflow/mlir#216

COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/mlir/pull/216 from schweitzpgi:llvmir-fneg-op f9b5f185845d671b745ab6fc213d5d9aff044b34
PiperOrigin-RevId: 278795325
2019-11-06 00:02:10 -08:00
James Molloy 96531e2f87 [mlir][llvm] Add missing cast ops
Also adds a builder method for fcmp, identical to that for icmp.

PiperOrigin-RevId: 277923158
2019-11-01 07:32:09 -07:00
Kazuaki Ishizaki f28c5aca17 Fix minor spelling tweaks (NFC)
Closes tensorflow/mlir#175

PiperOrigin-RevId: 275726876
2019-10-20 09:44:36 -07:00
Lei Zhang 057dc41bf6 Allow '_' when pretty printing dialect symbols
'_' is used frequently enough as the separator of words in symbols.
We should allow it in dialect symbols when considering pretty printing.

Also updated LangRef.md regarding pretty form.

PiperOrigin-RevId: 275312494
2019-10-17 12:24:18 -07:00
Eric Schweitz a3d084848d Add LLVM IR dialect hooks for FP128 and X86_FP80 types
Closes tensorflow/mlir#184

COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/mlir/pull/184 from schweitzpgi:more-float-types ca27d00510a86ffc9c79c65fb3a0193b5ea097a0
PiperOrigin-RevId: 274288813
2019-10-11 18:35:33 -07:00
Alex Zinenko 71b82bcbf6 LLVM Dialect: introduce llvm.mlir.null operation
Similarly to `llvm.mlir.undef`, this auxiliary operation creates an SSA value
that corresponds to `null` in LLVM IR.  This operation is necessary to model
sizeof(<...>) behavior when allocating memory.

PiperOrigin-RevId: 274158760
2019-10-11 06:32:24 -07:00
Alex Zinenko c6f8adad8e Move LLVMIR dialect tests from test/LLVMIR to test/Dialect and test/Conversion
This follows up on the recent restructuring that moved the dialects under
lib/Dialect and inter-dialect conversions to lib/Conversion. Originally, the
tests for both the LLVMIR dialect itself and the conversion from Standard to
LLVMIR dialect lived under test/LLVMIR.  This no longer reflects the code
structure.  Move the tests to either test/Dialect/LLVMIR or
test/Conversion/StandardToLLVM depending on the features they exercise.

PiperOrigin-RevId: 267159219
2019-09-04 08:38:18 -07:00