yabinc wrote:
I am not sure if it is worth using Store instead of memset for 8 bytes or
fewer, as below:
` if (BitSize <= 64) {
Builder.CreateStore(Builder.getIntN(BitSize, 0), Addr);
}`
As shown in https://godbolt.org/z/PEW1zxc1G, memset is not optimized away in
-O2 -emit-llvm, but it is optimized to stores in the arm64/x86_64 backend with
-O2.
https://github.com/llvm/llvm-project/pull/97121
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