1; RUN: llc < %s -mtriple=arm64-eabi | 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 8define i32 @t1(i64 %a) { 9; CHECK-LABEL: t1: 10; CHECK: // %bb.0: 11; CHECK-NEXT: lsr x8, x0, #63 12; CHECK-NEXT: eor w0, w8, #0x1 13; CHECK-NEXT: ret 14; 15 %cmp = icmp sgt i64 %a, -1 16 %conv = zext i1 %cmp to i32 17 ret i32 %conv 18} 19