1 ; RUN: llc < %s -march=bpfel -show-mc-encoding | FileCheck %s 2 3 ; Function Attrs: nounwind uwtable 4 define i32 @ld_b(i64 %foo, i64* nocapture %bar, i8* %ctx, i8* %ctx2) #0 { 5 %1 = tail call i64 @llvm.bpf.load.byte(i8* %ctx, i64 123) #2 6 %2 = add i64 %1, %foo 7 %3 = load volatile i64, i64* %bar, align 8 8 %4 = add i64 %2, %3 9 %5 = tail call i64 @llvm.bpf.load.byte(i8* %ctx2, i64 %foo) #2 10 %6 = add i64 %4, %5 11 %7 = load volatile i64, i64* %bar, align 8 12 %8 = add i64 %6, %7 13 %9 = trunc i64 %8 to i32 14 ret i32 %9 15 ; CHECK-LABEL: ld_b: 16 ; CHECK: ldabs_b r0, r6.data + 123 17 ; CHECK: ldind_b r0, r6.data 18 } 19 20 declare i64 @llvm.bpf.load.byte(i8*, i64) #1 21 22 ; Function Attrs: nounwind uwtable 23 define i32 @ld_h(i8* %ctx, i8* %ctx2, i32 %foo) #0 { 24 %1 = tail call i64 @llvm.bpf.load.half(i8* %ctx, i64 123) #2 25 %2 = sext i32 %foo to i64 26 %3 = tail call i64 @llvm.bpf.load.half(i8* %ctx2, i64 %2) #2 27 %4 = add i64 %3, %1 28 %5 = trunc i64 %4 to i32 29 ret i32 %5 30 ; CHECK-LABEL: ld_h: 31 ; CHECK: ldind_h r0, r6.data 32 ; CHECK: ldabs_h r0, r6.data + 123 33 } 34 35 declare i64 @llvm.bpf.load.half(i8*, i64) #1 36 37 ; Function Attrs: nounwind uwtable 38 define i32 @ld_w(i8* %ctx, i8* %ctx2, i32 %foo) #0 { 39 %1 = tail call i64 @llvm.bpf.load.word(i8* %ctx, i64 123) #2 40 %2 = sext i32 %foo to i64 41 %3 = tail call i64 @llvm.bpf.load.word(i8* %ctx2, i64 %2) #2 42 %4 = add i64 %3, %1 43 %5 = trunc i64 %4 to i32 44 ret i32 %5 45 ; CHECK-LABEL: ld_w: 46 ; CHECK: ldind_w r0, r6.data 47 ; CHECK: ldabs_w r0, r6.data + 123 48 } 49 50 declare i64 @llvm.bpf.load.word(i8*, i64) #1 51 52 define i32 @ld_pseudo() #0 { 53 entry: 54 %call = tail call i64 @llvm.bpf.pseudo(i64 2, i64 3) 55 tail call void @bar(i64 %call, i32 4) #2 56 ret i32 0 57 ; CHECK-LABEL: ld_pseudo: 58 ; CHECK: ld_pseudo r1, 2, 3 # encoding: [0x18,0x21,0x00,0x00,0x03,0x00 59 } 60 61 declare void @bar(i64, i32) #1 62 63 declare i64 @llvm.bpf.pseudo(i64, i64) #2 64 65 define i32 @bswap(i64 %a, i64 %b, i64 %c) #0 { 66 entry: 67 %0 = tail call i64 @llvm.bswap.i64(i64 %a) 68 %conv = trunc i64 %b to i32 69 %1 = tail call i32 @llvm.bswap.i32(i32 %conv) 70 %conv1 = zext i32 %1 to i64 71 %add = add i64 %conv1, %0 72 %conv2 = trunc i64 %c to i16 73 %2 = tail call i16 @llvm.bswap.i16(i16 %conv2) 74 %conv3 = zext i16 %2 to i64 75 %add4 = add i64 %add, %conv3 76 %conv5 = trunc i64 %add4 to i32 77 ret i32 %conv5 78 ; CHECK-LABEL: bswap: 79 ; CHECK: bswap64 r1 # encoding: [0xdc,0x01,0x00,0x00,0x40,0x00,0x00,0x00] 80 ; CHECK: bswap32 r2 # encoding: [0xdc,0x02,0x00,0x00,0x20,0x00,0x00,0x00] 81 ; CHECK: add r2, r1 # encoding: [0x0f,0x12,0x00,0x00,0x00,0x00,0x00,0x00] 82 ; CHECK: bswap16 r3 # encoding: [0xdc,0x03,0x00,0x00,0x10,0x00,0x00,0x00] 83 ; CHECK: add r2, r3 # encoding: [0x0f,0x32,0x00,0x00,0x00,0x00,0x00,0x00] 84 } 85 86 declare i64 @llvm.bswap.i64(i64) #1 87 declare i32 @llvm.bswap.i32(i32) #1 88 declare i16 @llvm.bswap.i16(i16) #1 89
