4 Commits

Author SHA1 Message Date
Emma Pilkington
4490003a22
[AMDGPU] Rename COV module flag to amdhsa_code_object_version (#79905)
The previous name 'amdgpu_code_object_version', was misleading since
this is really a property of the HSA OS. The new spelling also matches
the asm directive I added in bc82cfb.
2024-03-06 09:51:48 -05:00
Pierre van Houtryve
500846d2f5
[AMDGPU] Introduce Code Object V6 (#76954)
Introduce Code Object V6 in Clang, LLD, Flang and LLVM. This is the same
as V5 except a new "generic version" flag can be present in EFLAGS. This
is related to new generic targets that'll be added in a follow-up patch.
It's also likely V6 will have new changes (possibly new metadata
entries) added later.

Docs change are part of the follow-up patch #76955
2024-02-05 08:19:53 +01:00
Saiyedul Islam
21861991e7
[OpenMP] Cleanup and fixes for ABI agnostic DeviceRTL (#71234)
Fixes the DeviceRTL compilation to ensure it is ABI agnostic. Uses
already available global variable "oclc_ABI_version" instead of
"llvm.amdgcn.abi.verion".

It also adds some minor fields in ImplicitArg structure.
2023-11-09 10:34:35 +05:30
Saiyedul Islam
f616c3eeb4
[OpenMP][DeviceRTL][AMDGPU] Support code object version 5
Update DeviceRTL and the AMDGPU plugin to support code
object version 5. Default is code object version 4.

CodeGen for __builtin_amdgpu_workgroup_size generates code
for cov4 as well as cov5 if -mcode-object-version=none
is specified. DeviceRTL compilation passes this argument
via Xclang option to generate abi-agnostic code.

Generated code for the above builtin uses a clang
control constant "llvm.amdgcn.abi.version" to branch on
the abi version, which is available during linking of
user's OpenMP code. Load of this constant gets eliminated
during linking.

AMDGPU plugin queries the ELF for code object version
and then prepares various implicitargs accordingly.

Differential Revision: https://reviews.llvm.org/D139730

Reviewed By: jhuber6, yaxunl
2023-08-29 06:35:44 -05:00