1 ; RUN: llc < %s -mtriple=aarch64-linux-gnu | FileCheck %s 2 3 ; CHECK-LABEL: t1 4 ; CHECK: smax 5 define <4 x i32> @t1(<4 x i32> %a, <4 x i32> %b) { 6 %t1 = icmp sgt <4 x i32> %a, %b 7 %t2 = select <4 x i1> %t1, <4 x i32> %a, <4 x i32> %b 8 ret <4 x i32> %t2 9 } 10 11 ; CHECK-LABEL: t2 12 ; CHECK: smin 13 define <4 x i32> @t2(<4 x i32> %a, <4 x i32> %b) { 14 %t1 = icmp slt <4 x i32> %a, %b 15 %t2 = select <4 x i1> %t1, <4 x i32> %a, <4 x i32> %b 16 ret <4 x i32> %t2 17 } 18 19 ; CHECK-LABEL: t3 20 ; CHECK: umax 21 define <4 x i32> @t3(<4 x i32> %a, <4 x i32> %b) { 22 %t1 = icmp ugt <4 x i32> %a, %b 23 %t2 = select <4 x i1> %t1, <4 x i32> %a, <4 x i32> %b 24 ret <4 x i32> %t2 25 } 26 27 ; CHECK-LABEL: t4 28 ; CHECK: umin 29 define <8 x i8> @t4(<8 x i8> %a, <8 x i8> %b) { 30 %t1 = icmp ult <8 x i8> %a, %b 31 %t2 = select <8 x i1> %t1, <8 x i8> %a, <8 x i8> %b 32 ret <8 x i8> %t2 33 } 34 35 ; CHECK-LABEL: t5 36 ; CHECK: smin 37 define <4 x i16> @t5(<4 x i16> %a, <4 x i16> %b) { 38 %t1 = icmp sgt <4 x i16> %b, %a 39 %t2 = select <4 x i1> %t1, <4 x i16> %a, <4 x i16> %b 40 ret <4 x i16> %t2 41 } 42 43 ; CHECK-LABEL: t6 44 ; CHECK: smax 45 define <2 x i32> @t6(<2 x i32> %a, <2 x i32> %b) { 46 %t1 = icmp slt <2 x i32> %b, %a 47 %t2 = select <2 x i1> %t1, <2 x i32> %a, <2 x i32> %b 48 ret <2 x i32> %t2 49 } 50 51 ; CHECK-LABEL: t7 52 ; CHECK: umin 53 define <16 x i8> @t7(<16 x i8> %a, <16 x i8> %b) { 54 %t1 = icmp ugt <16 x i8> %b, %a 55 %t2 = select <16 x i1> %t1, <16 x i8> %a, <16 x i8> %b 56 ret <16 x i8> %t2 57 } 58 59 ; CHECK-LABEL: t8 60 ; CHECK: umax 61 define <8 x i16> @t8(<8 x i16> %a, <8 x i16> %b) { 62 %t1 = icmp ult <8 x i16> %b, %a 63 %t2 = select <8 x i1> %t1, <8 x i16> %a, <8 x i16> %b 64 ret <8 x i16> %t2 65 } 66 67 ; CHECK-LABEL: t9 68 ; CHECK: umin 69 ; CHECK: smax 70 define <4 x i32> @t9(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { 71 %t1 = icmp ugt <4 x i32> %b, %a 72 %t2 = select <4 x i1> %t1, <4 x i32> %a, <4 x i32> %b 73 %t3 = icmp sge <4 x i32> %t2, %c 74 %t4 = select <4 x i1> %t3, <4 x i32> %t2, <4 x i32> %c 75 ret <4 x i32> %t4 76 } 77 78 ; CHECK-LABEL: t10 79 ; CHECK: smax 80 ; CHECK: smax 81 define <8 x i32> @t10(<8 x i32> %a, <8 x i32> %b) { 82 %t1 = icmp sgt <8 x i32> %a, %b 83 %t2 = select <8 x i1> %t1, <8 x i32> %a, <8 x i32> %b 84 ret <8 x i32> %t2 85 } 86 87 ; CHECK-LABEL: t11 88 ; CHECK: smin 89 ; CHECK: smin 90 ; CHECK: smin 91 ; CHECK: smin 92 define <16 x i32> @t11(<16 x i32> %a, <16 x i32> %b) { 93 %t1 = icmp sle <16 x i32> %a, %b 94 %t2 = select <16 x i1> %t1, <16 x i32> %a, <16 x i32> %b 95 ret <16 x i32> %t2 96 } 97 98 ; CHECK-LABEL: t12 99 ; CHECK-NOT: umin 100 ; The icmp is used by two instructions, so don't produce a umin node. 101 define <16 x i8> @t12(<16 x i8> %a, <16 x i8> %b) { 102 %t1 = icmp ugt <16 x i8> %b, %a 103 %t2 = select <16 x i1> %t1, <16 x i8> %a, <16 x i8> %b 104 %t3 = zext <16 x i1> %t1 to <16 x i8> 105 %t4 = add <16 x i8> %t3, %t2 106 ret <16 x i8> %t4 107 } 108
