1; RUN: llc < %s -mtriple=aarch64-linux-gnu | FileCheck %s 2 3; CHECK-LABEL: t1 4; CHECK: smax 5define <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 13define <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 21define <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 29define <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 37define <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 45define <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 53define <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 61define <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 70define <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 81define <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 92define <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. 101define <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