11 Commits

Author SHA1 Message Date
Slava Zakharin
ffe1661fab [flang] Propagate fastmath flags during intrinsics simplification.
In general, the meaning of fastmath flags on a call during inlining
is that the call's operation flags must be ignored. For user functions
that means that the fastmath flags used for the function definition
override any call site's fastmath flags. For intrinsic functions
we can use the call site's fastmath flags, but we have to make sure
that the call sites with different flags produce/use different
simplified versions of the same intrinsic function.

Differential Revision: https://reviews.llvm.org/D138048
2022-11-17 10:16:47 -08:00
Slava Zakharin
8bd76ac151 [flang] Support multidimensional reductions in SimplifyIntrinsicsPass.
Create simplified functions for each rank with "x<rank>" suffix
that implement multidimensional reductions. To enable this I had to fix
an issue with taking incorrect box shape in cases of sliced embox/rebox.

Differential Revision: https://reviews.llvm.org/D133820
2022-09-19 12:16:23 -07:00
Slava Zakharin
2b138567e0 [flang] Support more data types for reduction in SimplifyIntrinsicsPass.
All floating point (not complex) and integer types should be supported now.

Differential Revision: https://reviews.llvm.org/D133818
2022-09-19 12:16:22 -07:00
Mats Petersson
5653884e34 [FLANG]Remove experimental flag from SUM simplification
The SUM function does appear to be safe to use, so remove the
experimental flag for the SUM operation.

Reviewed By: vzakhari, awarzynski

Differential Revision: https://reviews.llvm.org/D132567
2022-08-25 14:11:41 +01:00
Mats Petersson
afa520ab34 [FLANG]Add maxval simplification support
Add simplifcation pass for MAXVAL intrinsic function

This refactors some of the code to allow variation on the
initialization value and operation performed within the loop,
reusing the majority of code for both SUM and MAXVAL.

Adding tests for the test-cases that produce different output
than the SUM function.

Reviewed By: vzakhari

Differential Revision: https://reviews.llvm.org/D132234
2022-08-24 14:08:19 +01:00
Mats Petersson
72e599197c [Flang]Fix another way to crash SimplifyIntrinsics
Under some conditions, the defining op may be NULL, so
accept that rahter than try to use it and crash!

Adds test to prevent regression

Fixes github issue #57201

Reviewed By: vzakhari

Differential Revision: https://reviews.llvm.org/D132238
2022-08-19 19:00:30 +01:00
Slava Zakharin
11db65bab8 [flang] Control SUM simplification with a pass option.
The current code may not always work correctly, e.g.:
https://github.com/llvm/llvm-project/issues/57201

I added 'enable-experimental' pass option so that SUM simplification
may be enabled in LIT tests, but it is not enabled when the pass
is added to the passes pipeline.

Differential Revision: https://reviews.llvm.org/D131640
2022-08-17 13:37:44 -07:00
Mats Petersson
726786083f [flang]Avoid asking for operands when there are none
Fix one encountered (issue #57072) and two potential scenarios where the
code would ask for an operand that isn't there.

Add test for the encountered case.

Reviewed By: vzakhari

Differential Revision: https://reviews.llvm.org/D131671
2022-08-17 12:31:42 +01:00
Slava Zakharin
56eda98f0c [flang] Handle mixed types in DOT_PRODUCT simplification.
Fortran runtime supports mixed types by casting the loaded values
to the result type, so DOT_PRODUCT simplification has to do the same.

Differential Revision: https://reviews.llvm.org/D131726
2022-08-15 09:03:38 -07:00
Slava Zakharin
1d5e7a498f [flang] Support DOT_PRODUCT in late inlining.
This change inlines DOT_PRODUCT calls for real and integer types.

Differential Revision: https://reviews.llvm.org/D131538
2022-08-10 16:30:35 -07:00
Mats Petersson
6e193b5cbb Prepare for inlining of SUM intrinsic
Find calls to FortranASum{Real8,Integer4}, check for dim and mask
arguments being absent - then produce an inlineable simple
version of the sum function.

(No longer a prototype, please review for push to llvm/main - not sure how to make Phabricator update the review with actual commit message)

Reviewed By: peixin, awarzynski

Differential Revision: https://reviews.llvm.org/D125407
2022-08-04 20:56:19 +01:00