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__sync_fetch_and_and
2011 Jul 12
0
[LLVMdev] GCC Atomic NAND implementation
Hey Guys,
I have a newbie question about supporting the GNU atomic
builtin, __sync_fetch_and_nand. It appears that LLVM 29 produces X86
assembly like the GCC versions below v4.4, i.e.
NEGATE and AND
notq %rax
movq 48(%rsp), %rcx
andq %rcx, %rax
I'm looking to produce X86 assembly like GCC v4.4 and greater, i.e.
NOT AND
movq 48(%rsp), %rc...