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instruction: 0.683
runtime: 0.164
syscall: 0.153
Performance improvement when using "QEMU_FLATTEN" with softfloat type conversions
Attached below is a matrix multiplication program for double data
types. The program performs the casting operation "(double)rand()"
when generating random numbers.
This operation calls the integer to float softfloat conversion
function "int32_to_float_64".
Adding the "QEMU_FLATTEN" attribute to the function definition
decreases the instructions per call of the function by about 63%.
Attached are before and after performance screenshots from
KCachegrind.
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