1 ; RUN: opt < %s -instcombine -S > %t 2 ; RUN: not grep zext %t 3 ; RUN: not grep slt %t 4 ; RUN: grep "icmp ult" %t 5 6 ; Instcombine should convert the zext+slt into a simple ult. 7 8 define void @foo(double* %p) nounwind { 9 entry: 10 br label %bb 11 12 bb: 13 %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %bb ] 14 %t0 = and i64 %indvar, 65535 15 %t1 = getelementptr double* %p, i64 %t0 16 %t2 = load double* %t1, align 8 17 %t3 = fmul double %t2, 2.2 18 store double %t3, double* %t1, align 8 19 %i.04 = trunc i64 %indvar to i16 20 %t4 = add i16 %i.04, 1 21 %t5 = zext i16 %t4 to i32 22 %t6 = icmp slt i32 %t5, 500 23 %indvar.next = add i64 %indvar, 1 24 br i1 %t6, label %bb, label %return 25 26 return: 27 ret void 28 } 29
