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All, I'm working on a new scheduler. I have a basic block for which my scheduler generates bad code. The C code looks like int j, *p; if ((j = *p++) != 0) {...} My scheduler emits (x86, AT&T) mov p, %rax mov (%rax), %rax mov %rax, j addq $0x04, p je ... Notice there is no test instruction. The default list scheduler generates mov p, %rax mov (%rax), %rax mov %rax, j addq $0x04,