From a89a14ef5da44684a16b204e7a70460cc8c4922a Mon Sep 17 00:00:00 2001 From: Thomas Voss Date: Fri, 21 Jun 2024 23:36:36 +0200 Subject: Basic constant folding implementation --- vendor/gmp-6.3.0/mpn/x86_64/bd1/README | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 vendor/gmp-6.3.0/mpn/x86_64/bd1/README (limited to 'vendor/gmp-6.3.0/mpn/x86_64/bd1/README') 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. -- cgit v1.2.3