[Arm64] Use smull/umull for computing 64-bit result of multiplication of two 32-bit ints/uint #47490
Labels
arch-arm64
area-CodeGen-coreclr
CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
optimization
Priority:3
Work that is nice to have
Milestone
Right now the body of the following method
is compiled by the JIT as two sign extensions
sxtw
followed bymul
instruction:As @TamarChristinaArm pointed out in #47362 that could be simplified down to
The same applies to unsigned version of the method
that should be compiled to
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