llvm-6502/test/CodeGen/AArch64/arm64-icmp-opt.ll

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; RUN: llc < %s -march=arm64 | FileCheck %s
; Optimize (x > -1) to (x >= 0) etc.
; Optimize (cmp (add / sub), 0): eliminate the subs used to update flag
; for comparison only
; rdar://10233472
define i32 @t1(i64 %a) nounwind ssp {
entry:
; CHECK-LABEL: t1:
; CHECK-NOT: movn
; CHECK: cmp x0, #0
; CHECK: cset w0, ge
%cmp = icmp sgt i64 %a, -1
%conv = zext i1 %cmp to i32
ret i32 %conv
}