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Commit Graph

Author	SHA1	Message	Date
Fangrui Song	012dd42e02	[X86] Support -march=x86-64-v[234] PR47686. These micro-architecture levels are defined in the x86-64 psABI: https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/77566eb03bc6a326811cb7e9 GCC 11 will support these levels. Note, -mtune=x86-64-v[234] are invalid and __builtin_cpu_is cannot be used on them. Reviewed By: craig.topper, RKSimon Differential Revision: https://reviews.llvm.org/D89197	2020-10-12 10:29:46 -07:00
Craig Topper	699ae0c173	[X86] Implement __builtin_cpu_is This patch adds support for __builtin_cpu_is. I've tried to match the strings supported to the latest version of gcc. Differential Revision: https://reviews.llvm.org/D35449 llvm-svn: 310657	2017-08-10 20:28:30 +00:00
Eric Christopher	d983270976	Add support for the x86 builtin __builtin_cpu_supports. This matches the implementation of the gcc support for the same feature, including checking the values set up by libgcc at runtime. The structure looks like this: unsigned int __cpu_vendor; unsigned int __cpu_type; unsigned int __cpu_subtype; unsigned int __cpu_features[1]; with a set of enums to match various fields that are field out after parsing the output of the cpuid instruction. This also adds a set of errors checking for valid input (and cpu). compiler-rt support for this and the other builtins in this family (__builtin_cpu_init and __builtin_cpu_is) are forthcoming. llvm-svn: 240994	2015-06-29 21:00:05 +00:00

Author

SHA1

Message

Date

Fangrui Song

012dd42e02

[X86] Support -march=x86-64-v[234]

PR47686. These micro-architecture levels are defined in the x86-64 psABI:

https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/77566eb03bc6a326811cb7e9

GCC 11 will support these levels.

Note, -mtune=x86-64-v[234] are invalid and __builtin_cpu_is cannot be
used on them.

Reviewed By: craig.topper, RKSimon

Differential Revision: https://reviews.llvm.org/D89197

2020-10-12 10:29:46 -07:00

Craig Topper

699ae0c173

[X86] Implement __builtin_cpu_is

This patch adds support for __builtin_cpu_is. I've tried to match the strings supported to the latest version of gcc.

Differential Revision: https://reviews.llvm.org/D35449

llvm-svn: 310657

2017-08-10 20:28:30 +00:00

Eric Christopher

d983270976

Add support for the x86 builtin __builtin_cpu_supports.

This matches the implementation of the gcc support for the same
feature, including checking the values set up by libgcc at runtime.
The structure looks like this:

  unsigned int __cpu_vendor;
  unsigned int __cpu_type;
  unsigned int __cpu_subtype;
  unsigned int __cpu_features[1];

with a set of enums to match various fields that are field out after
parsing the output of the cpuid instruction.
This also adds a set of errors checking for valid input (and cpu).

compiler-rt support for this and the other builtins in this family
(__builtin_cpu_init and __builtin_cpu_is) are forthcoming.

llvm-svn: 240994

2015-06-29 21:00:05 +00:00

3 Commits