1 ; Test population-count instruction 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s 4 5 declare i32 @llvm.ctpop.i32(i32 %a) 6 declare i64 @llvm.ctpop.i64(i64 %a) 7 8 define i32 @f1(i32 %a) { 9 ; CHECK-LABEL: f1: 10 ; CHECK: popcnt %r0, %r2 11 ; CHECK: sllk %r1, %r0, 16 12 ; CHECK: ar %r1, %r0 13 ; CHECK: sllk %r2, %r1, 8 14 ; CHECK: ar %r2, %r1 15 ; CHECK: srl %r2, 24 16 ; CHECK: br %r14 17 18 %popcnt = call i32 @llvm.ctpop.i32(i32 %a) 19 ret i32 %popcnt 20 } 21 22 define i32 @f2(i32 %a) { 23 ; CHECK-LABEL: f2: 24 ; CHECK: llhr %r0, %r2 25 ; CHECK: popcnt %r0, %r0 26 ; CHECK: risblg %r2, %r0, 16, 151, 8 27 ; CHECK: ar %r2, %r0 28 ; CHECK: srl %r2, 8 29 ; CHECK: br %r14 30 %and = and i32 %a, 65535 31 %popcnt = call i32 @llvm.ctpop.i32(i32 %and) 32 ret i32 %popcnt 33 } 34 35 define i32 @f3(i32 %a) { 36 ; CHECK-LABEL: f3: 37 ; CHECK: llcr %r0, %r2 38 ; CHECK: popcnt %r2, %r0 39 ; CHECK: br %r14 40 %and = and i32 %a, 255 41 %popcnt = call i32 @llvm.ctpop.i32(i32 %and) 42 ret i32 %popcnt 43 } 44 45 define i64 @f4(i64 %a) { 46 ; CHECK-LABEL: f4: 47 ; CHECK: popcnt %r0, %r2 48 ; CHECK: sllg %r1, %r0, 32 49 ; CHECK: agr %r1, %r0 50 ; CHECK: sllg %r0, %r1, 16 51 ; CHECK: agr %r0, %r1 52 ; CHECK: sllg %r1, %r0, 8 53 ; CHECK: agr %r1, %r0 54 ; CHECK: srlg %r2, %r1, 56 55 ; CHECK: br %r14 56 %popcnt = call i64 @llvm.ctpop.i64(i64 %a) 57 ret i64 %popcnt 58 } 59 60 define i64 @f5(i64 %a) { 61 ; CHECK-LABEL: f5: 62 ; CHECK: llgfr %r0, %r2 63 ; CHECK: popcnt %r0, %r0 64 ; CHECK: sllg %r1, %r0, 16 65 ; CHECK: algfr %r0, %r1 66 ; CHECK: sllg %r1, %r0, 8 67 ; CHECK: algfr %r0, %r1 68 ; CHECK: srlg %r2, %r0, 24 69 %and = and i64 %a, 4294967295 70 %popcnt = call i64 @llvm.ctpop.i64(i64 %and) 71 ret i64 %popcnt 72 } 73 74 define i64 @f6(i64 %a) { 75 ; CHECK-LABEL: f6: 76 ; CHECK: llghr %r0, %r2 77 ; CHECK: popcnt %r0, %r0 78 ; CHECK: risbg %r1, %r0, 48, 183, 8 79 ; CHECK: agr %r1, %r0 80 ; CHECK: srlg %r2, %r1, 8 81 ; CHECK: br %r14 82 %and = and i64 %a, 65535 83 %popcnt = call i64 @llvm.ctpop.i64(i64 %and) 84 ret i64 %popcnt 85 } 86 87 define i64 @f7(i64 %a) { 88 ; CHECK-LABEL: f7: 89 ; CHECK: llgcr %r0, %r2 90 ; CHECK: popcnt %r2, %r0 91 ; CHECK: br %r14 92 %and = and i64 %a, 255 93 %popcnt = call i64 @llvm.ctpop.i64(i64 %and) 94 ret i64 %popcnt 95 } 96 97
