1 ; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s 2 3 ; These tests could be improved by 'movs r0, #0' being rematerialized below the 4 ; test as 'mov.w r0, #0'. 5 6 define i32 @f1(i32 %a, i32 %b) { 7 %nb = sub i32 0, %b 8 %tmp = icmp ne i32 %a, %nb 9 %ret = select i1 %tmp, i32 42, i32 24 10 ret i32 %ret 11 } 12 ; CHECK-LABEL: f1: 13 ; CHECK: cmn {{.*}}, r1 14 15 define i32 @f2(i32 %a, i32 %b) { 16 %nb = sub i32 0, %b 17 %tmp = icmp ne i32 %nb, %a 18 %ret = select i1 %tmp, i32 42, i32 24 19 ret i32 %ret 20 } 21 ; CHECK-LABEL: f2: 22 ; CHECK: cmn {{.*}}, r1 23 24 define i32 @f3(i32 %a, i32 %b) { 25 %nb = sub i32 0, %b 26 %tmp = icmp eq i32 %a, %nb 27 %ret = select i1 %tmp, i32 42, i32 24 28 ret i32 %ret 29 } 30 ; CHECK-LABEL: f3: 31 ; CHECK: cmn {{.*}}, r1 32 33 define i32 @f4(i32 %a, i32 %b) { 34 %nb = sub i32 0, %b 35 %tmp = icmp eq i32 %nb, %a 36 %ret = select i1 %tmp, i32 42, i32 24 37 ret i32 %ret 38 } 39 ; CHECK-LABEL: f4: 40 ; CHECK: cmn {{.*}}, r1 41 42 define i32 @f5(i32 %a, i32 %b) { 43 %tmp = shl i32 %b, 5 44 %nb = sub i32 0, %tmp 45 %tmp1 = icmp eq i32 %nb, %a 46 %ret = select i1 %tmp1, i32 42, i32 24 47 ret i32 %ret 48 } 49 ; CHECK-LABEL: f5: 50 ; CHECK: cmn.w {{.*}}, r1, lsl #5 51 52 define i32 @f6(i32 %a, i32 %b) { 53 %tmp = lshr i32 %b, 6 54 %nb = sub i32 0, %tmp 55 %tmp1 = icmp ne i32 %nb, %a 56 %ret = select i1 %tmp1, i32 42, i32 24 57 ret i32 %ret 58 } 59 ; CHECK-LABEL: f6: 60 ; CHECK: cmn.w {{.*}}, r1, lsr #6 61 62 define i32 @f7(i32 %a, i32 %b) { 63 %tmp = ashr i32 %b, 7 64 %nb = sub i32 0, %tmp 65 %tmp1 = icmp eq i32 %a, %nb 66 %ret = select i1 %tmp1, i32 42, i32 24 67 ret i32 %ret 68 } 69 ; CHECK-LABEL: f7: 70 ; CHECK: cmn.w {{.*}}, r1, asr #7 71 72 define i32 @f8(i32 %a, i32 %b) { 73 %l8 = shl i32 %a, 24 74 %r8 = lshr i32 %a, 8 75 %tmp = or i32 %l8, %r8 76 %nb = sub i32 0, %tmp 77 %tmp1 = icmp ne i32 %a, %nb 78 %ret = select i1 %tmp1, i32 42, i32 24 79 ret i32 %ret 80 } 81 ; CHECK-LABEL: f8: 82 ; CHECK: cmn.w {{.*}}, {{.*}}, ror #8 83 84 85 define void @f9(i32 %a, i32 %b) nounwind optsize { 86 tail call void asm sideeffect "cmn.w r0, r1", ""() nounwind, !srcloc !0 87 ret void 88 } 89 90 !0 = !{i32 81} 91 92 ; CHECK-LABEL: f9: 93 ; CHECK: cmn.w r0, r1 94
