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| author | Thomas Voss <mail@thomasvoss.com> | 2024-06-21 23:36:36 +0200 |
|---|---|---|
| committer | Thomas Voss <mail@thomasvoss.com> | 2024-06-21 23:42:26 +0200 |
| commit | a89a14ef5da44684a16b204e7a70460cc8c4922a (patch) | |
| tree | b23b4c6b155977909ef508fdae2f48d33d802813 /vendor/gmp-6.3.0/mpn/x86_64/bd1/README | |
| parent | 1db63fcedab0b288820d66e100b1877b1a5a8851 (diff) | |
Basic constant folding implementation
Diffstat (limited to 'vendor/gmp-6.3.0/mpn/x86_64/bd1/README')
| -rw-r--r-- | vendor/gmp-6.3.0/mpn/x86_64/bd1/README | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/vendor/gmp-6.3.0/mpn/x86_64/bd1/README b/vendor/gmp-6.3.0/mpn/x86_64/bd1/README new file mode 100644 index 0000000..ccd210e --- /dev/null +++ b/vendor/gmp-6.3.0/mpn/x86_64/bd1/README @@ -0,0 +1,11 @@ +This directory contains code for AMD bulldozer including its piledriver update. + +We currently make limited use of SIMD instructions, both via the MPN_PATH and +via inclusion of x86_64/fastsse files. + +The bd1 cores share one SIMD/FPU pipeline for two integer units. This probably +means that an all-core GMP load (such as a HPC load) might run slower if there +is significant SIMD dependency. + +We should perhaps allow a special 'bd1nosimd' pseudo cpu-name excluding any +SIMD code. |