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23a0199f05
the same as setcc. Optimize ADDC(0,0,FLAGS) -> SET_CARRY(FLAGS). This is a step towards finishing off PR5443. In the testcase in that bug we now get: movq %rdi, %rax addq %rsi, %rax sbbq %rcx, %rcx testb $1, %cl setne %dl ret instead of: movq %rdi, %rax addq %rsi, %rax movl $0, %ecx adcq $0, %rcx testq %rcx, %rcx setne %dl ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122219 91177308-0d34-0410-b5e6-96231b3b80d8
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