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[AVX512] Use 256-bit extract instructions for extracting bits [255:128] from a 512-bit register
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Authored by craig.topper on Aug 23 2017, 10:11 PM.

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zvi
igorb
guyblank
RKSimon

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rG48a791707962: [AVX512] Use 256-bit extract instructions for extracting bits [255:128] from a…
rL312100: [AVX512] Use 256-bit extract instructions for extracting bits [255:128] from a…

Summary

This enables the use of a smaller encoding by using a VEX instruction when possible.

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Repository: rL LLVM

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craig.topper created this revision.Aug 23 2017, 10:11 PM

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LGTM

This revision is now accepted and ready to land.Aug 30 2017, 12:09 AM

Closed by commit rL312100: [AVX512] Use 256-bit extract instructions for extracting bits [255:128] from a… (authored by ctopper). · Explain WhyAug 30 2017, 12:29 AM

This revision was automatically updated to reflect the committed changes.

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Path

Size

llvm/

trunk/

lib/

Target/

X86/

X86InstrAVX512.td

58 lines

test/

CodeGen/

X86/

avx512-cvt.ll

4 lines

avx512-insert-extract.ll

20 lines

avx512dq-intrinsics-upgrade.ll

2 lines

avx512vl-vec-masked-cmp.ll

48 lines

pr29112.ll

4 lines

vec_int_to_fp.ll

8 lines

vector-compare-results.ll

168 lines

vector-idiv-sdiv-512.ll

12 lines

vector-idiv-udiv-512.ll

12 lines

vector-shuffle-512-v16.ll

10 lines

vector-shuffle-512-v32.ll

2 lines

vector-shuffle-512-v8.ll

8 lines

vector-shuffle-v1.ll

4 lines

Diff 113200

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llvm/trunk/lib/Target/X86/X86InstrAVX512.td

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llvm/trunk/test/CodeGen/X86/avx512-cvt.ll

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llvm/trunk/test/CodeGen/X86/avx512-insert-extract.ll

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llvm/trunk/test/CodeGen/X86/avx512dq-intrinsics-upgrade.ll

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llvm/trunk/test/CodeGen/X86/avx512vl-vec-masked-cmp.ll

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llvm/trunk/test/CodeGen/X86/pr29112.ll

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llvm/trunk/test/CodeGen/X86/vec_int_to_fp.ll

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llvm/trunk/test/CodeGen/X86/vector-compare-results.ll

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llvm/trunk/test/CodeGen/X86/vector-idiv-sdiv-512.ll

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llvm/trunk/test/CodeGen/X86/vector-idiv-udiv-512.ll

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llvm/trunk/test/CodeGen/X86/vector-shuffle-512-v16.ll

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llvm/trunk/test/CodeGen/X86/vector-shuffle-512-v32.ll

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llvm/trunk/test/CodeGen/X86/vector-shuffle-512-v8.ll

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llvm/trunk/test/CodeGen/X86/vector-shuffle-v1.ll

Please use GitHub pull requests for new patches. Phabricator shutdown timeline

[AVX512] Use 256-bit extract instructions for extracting bits [255:128] from a 512-bit registerClosedPublicActions

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Diff Detail

Event Timeline

Revision ContentsChangeset List

Diff 113200

llvm/trunk/lib/Target/X86/X86InstrAVX512.td

llvm/trunk/test/CodeGen/X86/avx512-cvt.ll

llvm/trunk/test/CodeGen/X86/avx512-insert-extract.ll

llvm/trunk/test/CodeGen/X86/avx512dq-intrinsics-upgrade.ll

llvm/trunk/test/CodeGen/X86/avx512vl-vec-masked-cmp.ll

llvm/trunk/test/CodeGen/X86/pr29112.ll

llvm/trunk/test/CodeGen/X86/vec_int_to_fp.ll

llvm/trunk/test/CodeGen/X86/vector-compare-results.ll

llvm/trunk/test/CodeGen/X86/vector-idiv-sdiv-512.ll

llvm/trunk/test/CodeGen/X86/vector-idiv-udiv-512.ll

llvm/trunk/test/CodeGen/X86/vector-shuffle-512-v16.ll

llvm/trunk/test/CodeGen/X86/vector-shuffle-512-v32.ll

llvm/trunk/test/CodeGen/X86/vector-shuffle-512-v8.ll

llvm/trunk/test/CodeGen/X86/vector-shuffle-v1.ll

[AVX512] Use 256-bit extract instructions for extracting bits [255:128] from a 512-bit register
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Revision Contents
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