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| author | Andrew Stubbs <ams@codesourcery.com> | 2021-07-08 15:47:53 +0100 |
|---|---|---|
| committer | Andrew Stubbs <ams@codesourcery.com> | 2021-07-19 17:34:21 +0100 |
| commit | aad32a00b7d2b64ae158b2b167768a9ae3e20f6e (patch) | |
| tree | ceb45863886ead20793426024e2772d60571f8b2 /gcc/doc/invoke.texi | |
| parent | db95ac7745b284d1fd667ee6262b4afc778fe074 (diff) | |
| download | gcc-aad32a00b7d2b64ae158b2b167768a9ae3e20f6e.zip gcc-aad32a00b7d2b64ae158b2b167768a9ae3e20f6e.tar.gz gcc-aad32a00b7d2b64ae158b2b167768a9ae3e20f6e.tar.bz2 | |
amdgcn: Add -mxnack and -msram-ecc [PR 100208]
gcc/ChangeLog:
PR target/100208
* config/gcn/gcn-hsa.h (DRIVER_SELF_SPECS): New.
(ASM_SPEC): Set -mattr for xnack and sram-ecc.
* config/gcn/gcn-opts.h (enum sram_ecc_type): New.
* config/gcn/gcn-valu.md: Add a warning comment.
* config/gcn/gcn.c (gcn_option_override): Add "sorry" for -mxnack.
(output_file_start): Add xnack and sram-ecc state to ".amdgcn_target".
* config/gcn/gcn.md: Add a warning comment.
* config/gcn/gcn.opt: Add -mxnack and -msram-ecc.
* config/gcn/mkoffload.c (EF_AMDGPU_MACH_AMDGCN_GFX908): Remove
SRAM-ECC flag.
(EF_AMDGPU_XNACK): New.
(EF_AMDGPU_SRAM_ECC): New.
(elf_flags): New.
(copy_early_debug_info): Use elf_flags.
(main): Handle -mxnack and -msram-ecc options.
* doc/invoke.texi: Document -mxnack and -msram-ecc.
gcc/testsuite/ChangeLog:
PR target/100208
* gcc.target/gcn/sram-ecc-1.c: New test.
* gcc.target/gcn/sram-ecc-2.c: New test.
* gcc.target/gcn/sram-ecc-3.c: New test.
* gcc.target/gcn/sram-ecc-4.c: New test.
* gcc.target/gcn/sram-ecc-5.c: New test.
* gcc.target/gcn/sram-ecc-6.c: New test.
* gcc.target/gcn/sram-ecc-7.c: New test.
* gcc.target/gcn/sram-ecc-8.c: New test.
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index b16176e..32697e6 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -18847,6 +18847,15 @@ Compile for GCN5 Vega 20 devices (gfx906). @end table +@item -msram-ecc=on +@itemx -msram-ecc=off +@itemx -msram-ecc=any +@opindex msram-ecc +Compile binaries suitable for devices with the SRAM-ECC feature enabled, +disabled, or either mode. This feature can be enabled per-process on some +devices. The compiled code must match the device mode. The default is +@samp{any}, for devices that support it. + @item -mstack-size=@var{bytes} @opindex mstack-size Specify how many @var{bytes} of stack space will be requested for each GPU @@ -18855,6 +18864,14 @@ available. The size of the stack allocation may also have an impact on run-time performance. The default is 32KB when using OpenACC or OpenMP, and 1MB otherwise. +@item -mxnack +@opindex mxnack +Compile binaries suitable for devices with the XNACK feature enabled. Some +devices always require XNACK and some allow the user to configure XNACK. The +compiled code must match the device mode. The default is @samp{-mno-xnack}. +At present this option is a placeholder for support that is not yet +implemented. + @end table @node ARC Options |