[SYCL][FPGA] Add support for loop count attribute. #3438

zahiraam · 2021-03-29T12:06:00Z

This patch adds support of loop_min, loop_max and loop_avg attributes. They specify the minimum, maximum, or average number of iterations of a for loop.

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

clang/include/clang/Basic/Attr.td

clang/test/SemaSYCL/intel-fpga-loops.cpp

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

clang/include/clang/Basic/Attr.td

clang/include/clang/Basic/AttrDocs.td

clang/include/clang/Sema/Sema.h

clang/lib/Sema/SemaStmtAttr.cpp

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

zahiraam · 2021-04-14T11:54:24Z

I need to write the loop_count_min and loop_count_max too. I am trying to find out if there is a way to represent this attribute as a single one, loop_count with option min, max, avg instead of having an entry for each one.

smanna12 · 2021-04-14T12:10:32Z

I need to write the loop_count_min and loop_count_max too. I am trying to find out if there is a way to represent this attribute as a single one, loop_count with option min, max, avg instead of having an entry for each one.

I think you can use Accessors here like
let Accessors =
[Accessor<"isMin", [CXX11<"intel", "loop_count_min">]>];

Same for Max or Avg

This was you can represent this attribute as a single one.
}

@AaronBallman, what is your opinion?

zahiraam · 2021-04-14T12:18:56Z

I need to write the loop_count_min and loop_count_max too. I am trying to find out if there is a way to represent this attribute as a single one, loop_count with option min, max, avg instead of having an entry for each one.

I think you can use Accessors here like
let Accessors =
[Accessor<"isMin", [CXX11<"intel", "loop_count_min">]>];

Same for Max or Avg

This was you can represent this attribute as a single one.
}

@AaronBallman, what is your opinion?

It looks like it is the way to go.

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

AaronBallman · 2021-04-14T12:40:55Z

I need to write the loop_count_min and loop_count_max too. I am trying to find out if there is a way to represent this attribute as a single one, loop_count with option min, max, avg instead of having an entry for each one.

I think you can use Accessors here like
let Accessors =
[Accessor<"isMin", [CXX11<"intel", "loop_count_min">]>];
Same for Max or Avg
This was you can represent this attribute as a single one.
}
@AaronBallman, what is your opinion?

It looks like it is the way to go.

Yeah, I think that would be the right approach.

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

smanna12 · 2021-04-26T19:15:10Z

@zahiraam, could you please update title and add brief summary about the support. Thanks.

zahiraam · 2021-04-27T11:28:09Z

Review please?

smanna12

LGTM. @AaronBallman, could you please take a look at the support? Thanks.

AaronBallman

Can you update the review title and description (this adds multiple attributes, none of which are named loop_count)?

clang/include/clang/Basic/Attr.td

AaronBallman · 2021-04-27T11:45:09Z

clang/include/clang/Basic/AttrDocs.td

+  let Category = DocCatVariable;
+  let Heading = "intel::loop_count_min, intel::loop_count_max, intel::loop_count_avg";
+  let Content = [{
+The "loop_count" attribute specifies the minimum, maximum, or average number of


Suggested change

The "loop_count" attribute specifies the minimum, maximum, or average number of

The loop count attributes specify the minimum, maximum, or average number of

clang/include/clang/Basic/AttrDocs.td

clang/lib/CodeGen/CGLoopInfo.h

clang/lib/Sema/SemaStmtAttr.cpp

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

clang/include/clang/Basic/AttrDocs.td

clang/lib/CodeGen/CGLoopInfo.cpp

AaronBallman · 2021-04-27T18:49:56Z

clang/lib/CodeGen/CGLoopInfo.h

+  void setSYCLIntelFPGAVariantCount(const char *var, unsigned int C) {
+    StagedAttrs.SYCLIntelFPGAVariantCount.push_back({var, C});


Suggested change

void setSYCLIntelFPGAVariantCount(const char *var, unsigned int C) {

StagedAttrs.SYCLIntelFPGAVariantCount.push_back({var, C});

void setSYCLIntelFPGAVariantCount(const char *Var, unsigned int Count) {

StagedAttrs.SYCLIntelFPGAVariantCount.push_back({Var, Count});

clang/lib/CodeGen/CGLoopInfo.cpp

clang/lib/CodeGen/CGLoopInfo.h

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

AaronBallman

LGTM aside from a super small grammar nit with the documentation.

clang/include/clang/Basic/AttrDocs.td

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

AaronBallman

LGTM!

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

premanandrao

LGTM

The original implementation of this attribute in intel#3438, did not support the [[intel::loop_count()]] attribute spelling. This patch adds support for that spelling. Signed-off-by: Soumi Manna <soumi.manna@intel.com>

The original implementation of this attribute in #3438, did not support the [[intel::loop_count()]] attribute spelling. This patch adds support for that spelling. Signed-off-by: Soumi Manna <soumi.manna@intel.com>

Brand-new spec: #12497 Signed-off-by: Dmitry Sidorov <dmitry.sidorov@intel.com> Co-authored-by: Viktoria Maximova <viktoria.maksimova@intel.com> Original commit: KhronosGroup/SPIRV-LLVM-Translator@60d78aa6d1d98cb

zahiraam added 12 commits March 29, 2021 08:02

[SYCL] Implementation of loop attribute control_avg.

488dfb9

Merge remote-tracking branch 'remote/sycl' into control-avg-attr

b0f255e

Fixing Attr name

0324f5f

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Complete implementation

a3a8613

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Merge remote-tracking branch 'remote/sycl' into control-avg-attr

5abbbe6

Adding test cases

48d6df0

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Merge remote-tracking branch 'remote/sycl' into control-avg-attr

61fba57

Merge remote-tracking branch 'remote/sycl' into control-avg-attr

99cb85f

Indent

44b8681

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Indent

7622568

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Indent

c3d8c59

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

CodeGen impl

4dba2ea

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

zahiraam requested a review from smanna12 April 12, 2021 16:24

smanna12 reviewed Apr 12, 2021

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smanna12 reviewed Apr 12, 2021

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clang/test/SemaSYCL/intel-fpga-loops.cpp Outdated Show resolved Hide resolved

smanna12 reviewed Apr 12, 2021

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zahiraam added 4 commits April 12, 2021 12:55

After review comments

50a06c7

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Changing name

1bb84bc

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Format

40a3279

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Merge remote-tracking branch 'remote/sycl' into control-avg-attr

1f84add

AaronBallman reviewed Apr 13, 2021

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After review

6ab3b07

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Merge remote-tracking branch 'remote/sycl' into control-avg-attr

a5ad650

Formatting

fd34d55

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

zahiraam added 2 commits April 14, 2021 09:38

Formatting

d812fa4

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

Looks like the HasCustomTypeTransform is needed

fd74842

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

zahiraam marked this pull request as ready for review April 25, 2021 01:16

zahiraam requested review from elizabethandrews and premanandrao as code owners April 25, 2021 01:16

zahiraam changed the title ~~Control avg attr~~ Adding loop control count attribute. Apr 26, 2021

zahiraam changed the title ~~Adding loop control count attribute.~~ Adding loop_count attribute. Apr 26, 2021

smanna12 previously approved these changes Apr 27, 2021

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AaronBallman reviewed Apr 27, 2021

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Merge remote-tracking branch 'remote/sycl' into control-avg-attr

a44e1ce

zahiraam changed the title ~~Adding loop_count attribute.~~ Adding support for loop count attribute. Apr 27, 2021

Fixes after review

1a20635

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

zahiraam dismissed smanna12’s stale review via 1a20635 April 27, 2021 16:26

Identation

c10bfaf

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

AaronBallman reviewed Apr 27, 2021

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Fixes after review

cefac8a

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

AaronBallman previously approved these changes Apr 27, 2021

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clang/include/clang/Basic/AttrDocs.td Outdated Show resolved Hide resolved

Fixes after review

6ddf9ce

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

zahiraam dismissed AaronBallman’s stale review via 6ddf9ce April 27, 2021 19:31

AaronBallman previously approved these changes Apr 27, 2021

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Fixes after review

d0ddcdd

Signed-off-by: Zahira Ammarguellat <zahira.ammarguellat@intel.com>

zahiraam dismissed AaronBallman’s stale review via d0ddcdd April 27, 2021 19:46

smanna12 approved these changes Apr 27, 2021

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premanandrao approved these changes Apr 28, 2021

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bader changed the title ~~Adding support for loop count attribute.~~ [SYCL][FPGA] Add support for loop count attribute. Apr 29, 2021

bader merged commit f74b4ef into intel:sycl Apr 29, 2021

smanna12 mentioned this pull request Feb 9, 2022

[SYCL][FPGA] Add support for [[intel::loop_count()]] attribute #5520

Merged

	The "loop_count" attribute specifies the minimum, maximum, or average number of
	The loop count attributes specify the minimum, maximum, or average number of

		void setSYCLIntelFPGAVariantCount(const char *var, unsigned int C) {
		StagedAttrs.SYCLIntelFPGAVariantCount.push_back({var, C});

[SYCL][FPGA] Add support for loop count attribute. #3438

[SYCL][FPGA] Add support for loop count attribute. #3438

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