llvm-project

Author SHA1 Message Date

Author	SHA1	Message	Date
Tianqing Wang	12fa608af4	[X86] Add CRC32 feature. `d8faf03807` implemented general-regs-only for X86 by disabling all features with vector instructions. But the CRC32 instruction in SSE4.2 ISA, which uses only GPRs, also becomes unavailable. This patch adds a CRC32 feature for this instruction and allows it to be used with general-regs-only. Reviewed By: pengfei Differential Revision: https://reviews.llvm.org/D105462	2021-09-06 17:24:30 +08:00
Simon Pilgrim	ae85da86ad	[Codegen][X86] Begin moving X86 specific codegen tests into X86 subfolder. Discussed with @craig.topper and @spatel - this is to try and tidyup the codegen folder and move the x86 specific tests (as opposed to general tests that just happen to use x86 triples) into subfolders. Its up to other targets if they follow suit. It also helps speed up test iterations as using wildcards on lit commands often misses some filenames.	2020-09-08 13:01:24 +01:00

Tianqing Wang

12fa608af4

[X86] Add CRC32 feature.

d8faf03807 implemented general-regs-only for X86 by disabling all features
with vector instructions. But the CRC32 instruction in SSE4.2 ISA, which uses
only GPRs, also becomes unavailable. This patch adds a CRC32 feature for this
instruction and allows it to be used with general-regs-only.

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D105462

2021-09-06 17:24:30 +08:00

Simon Pilgrim

ae85da86ad

[Codegen][X86] Begin moving X86 specific codegen tests into X86 subfolder.

Discussed with @craig.topper and @spatel - this is to try and tidyup the codegen folder and move the x86 specific tests (as opposed to general tests that just happen to use x86 triples) into subfolders. Its up to other targets if they follow suit.

It also helps speed up test iterations as using wildcards on lit commands often misses some filenames.

2020-09-08 13:01:24 +01:00

2 Commits