** Attachment added: "before.png" https://bugs.launchpad.net/qemu/+bug/1892081/+attachment/5402578/+files/before.png
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1892081 Title: Performance improvement when using "QEMU_FLATTEN" with softfloat type conversions Status in QEMU: New Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1892081/+subscriptions
