1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2 ; RUN: opt < %s -instsimplify -S | FileCheck %s 3 4 define <2 x i1> @nonzero_vec_splat(<2 x i32> %x) { 5 ; CHECK-LABEL: @nonzero_vec_splat( 6 ; CHECK-NEXT: ret <2 x i1> zeroinitializer 7 ; 8 %y = or <2 x i32> %x, <i32 1, i32 1> 9 %c = icmp eq <2 x i32> %y, zeroinitializer 10 ret <2 x i1> %c 11 } 12 13 define <2 x i1> @nonzero_vec_nonsplat(<2 x i32> %x) { 14 ; CHECK-LABEL: @nonzero_vec_nonsplat( 15 ; CHECK-NEXT: ret <2 x i1> <i1 true, i1 true> 16 ; 17 %y = or <2 x i32> %x, <i32 2, i32 1> 18 %c = icmp ne <2 x i32> %y, zeroinitializer 19 ret <2 x i1> %c 20 } 21 22 define <2 x i1> @nonzero_vec_undef_elt(<2 x i32> %x) { 23 ; CHECK-LABEL: @nonzero_vec_undef_elt( 24 ; CHECK-NEXT: ret <2 x i1> zeroinitializer 25 ; 26 %y = or <2 x i32> %x, <i32 undef, i32 1> 27 %c = icmp eq <2 x i32> %y, zeroinitializer 28 ret <2 x i1> %c 29 } 30 31 define <2 x i1> @may_be_zero_vec(<2 x i32> %x) { 32 ; CHECK-LABEL: @may_be_zero_vec( 33 ; CHECK-NEXT: [[Y:%.*]] = or <2 x i32> %x, <i32 0, i32 1> 34 ; CHECK-NEXT: [[C:%.*]] = icmp ne <2 x i32> [[Y]], zeroinitializer 35 ; CHECK-NEXT: ret <2 x i1> [[C]] 36 ; 37 %y = or <2 x i32> %x, <i32 0, i32 1> 38 %c = icmp ne <2 x i32> %y, zeroinitializer 39 ret <2 x i1> %c 40 } 41 42 ; Multiplies of non-zero numbers are non-zero if there is no unsigned overflow. 43 define <2 x i1> @nonzero_vec_mul_nuw(<2 x i32> %x, <2 x i32> %y) { 44 ; CHECK-LABEL: @nonzero_vec_mul_nuw( 45 ; CHECK-NEXT: ret <2 x i1> zeroinitializer 46 ; 47 %xnz = or <2 x i32> %x, <i32 1, i32 2> 48 %ynz = or <2 x i32> %y, <i32 3, i32 undef> 49 %m = mul nuw <2 x i32> %xnz, %ynz 50 %c = icmp eq <2 x i32> %m, zeroinitializer 51 ret <2 x i1> %c 52 } 53 54 ; Multiplies of non-zero numbers are non-zero if there is no signed overflow. 55 define <2 x i1> @nonzero_vec_mul_nsw(<2 x i32> %x, <2 x i32> %y) { 56 ; CHECK-LABEL: @nonzero_vec_mul_nsw( 57 ; CHECK-NEXT: ret <2 x i1> <i1 true, i1 true> 58 ; 59 %xnz = or <2 x i32> %x, <i32 undef, i32 2> 60 %ynz = or <2 x i32> %y, <i32 3, i32 4> 61 %m = mul nsw <2 x i32> %xnz, %ynz 62 %c = icmp ne <2 x i32> %m, zeroinitializer 63 ret <2 x i1> %c 64 } 65 66
