llvm-project

Commit Graph

Author	SHA1	Message	Date
Guy Blank	548e22a1a7	[X86][AVX512] Make i1 illegal in the CodeGen This patch defines the i1 type as illegal in the X86 backend for AVX512. For DAG operations on <N x i1> types (build vector, extract vector element, ...) i8 is used, and should be truncated/extended. This should produce better scalar code for i1 types since GPRs will be used instead of mask registers. Differential Revision: https://reviews.llvm.org/D32273 llvm-svn: 303421	2017-05-19 12:35:15 +00:00
Amjad Aboud	4f97751798	[X86] Generate VZEROUPPER for Skylake-avx512. VZEROUPPER should not be issued on Knights Landing (KNL), but on Skylake-avx512 it should be. Differential Revision: https://reviews.llvm.org/D29874 llvm-svn: 296859	2017-03-03 09:03:24 +00:00
Igor Breger	812f319794	[AVX512] Fix EXTRACT_VECTOR_ELT for v2i1/v4i1/v32i1/v64i1 with variable index. Differential Revision: https://reviews.llvm.org/D30189 llvm-svn: 295718	2017-02-21 14:01:25 +00:00

Author

SHA1

Message

Date

Guy Blank

548e22a1a7

[X86][AVX512] Make i1 illegal in the CodeGen

This patch defines the i1 type as illegal in the X86 backend for AVX512.
For DAG operations on <N x i1> types (build vector, extract vector element, ...) i8 is used, and should be truncated/extended.
This should produce better scalar code for i1 types since GPRs will be used instead of mask registers.

Differential Revision: https://reviews.llvm.org/D32273

llvm-svn: 303421

2017-05-19 12:35:15 +00:00

Amjad Aboud

4f97751798

[X86] Generate VZEROUPPER for Skylake-avx512.

VZEROUPPER should not be issued on Knights Landing (KNL), but on Skylake-avx512 it should be.

Differential Revision: https://reviews.llvm.org/D29874

llvm-svn: 296859

2017-03-03 09:03:24 +00:00

Igor Breger

812f319794

[AVX512] Fix EXTRACT_VECTOR_ELT for v2i1/v4i1/v32i1/v64i1 with variable index.

Differential Revision: https://reviews.llvm.org/D30189

llvm-svn: 295718

2017-02-21 14:01:25 +00:00

3 Commits