1 ; RUN: llc < %s -march=arm64 | FileCheck %s 2 3 ; Optimize (x > -1) to (x >= 0) etc. 4 ; Optimize (cmp (add / sub), 0): eliminate the subs used to update flag 5 ; for comparison only 6 ; rdar://10233472 7 8 define i32 @t1(i64 %a) nounwind ssp { 9 entry: 10 ; CHECK-LABEL: t1: 11 ; CHECK-NOT: movn 12 ; CHECK: cmp x0, #0 13 ; CHECK: cset w0, ge 14 %cmp = icmp sgt i64 %a, -1 15 %conv = zext i1 %cmp to i32 16 ret i32 %conv 17 } 18
