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; RUN: llc -march=bpfel -filetype=obj -o - %s | llvm-objdump -d - | FileCheck %s
; Function Attrs: nounwind uwtable
define i32 @ld_b(i64 %foo, i64* nocapture %bar, i8* %ctx, i8* %ctx2) #0 {
%1 = tail call i64 @llvm.bpf.load.byte(i8* %ctx, i64 123) #2
%2 = add i64 %1, %foo
%3 = load volatile i64, i64* %bar, align 8
%4 = add i64 %2, %3
%5 = tail call i64 @llvm.bpf.load.byte(i8* %ctx2, i64 %foo) #2
%6 = add i64 %4, %5
%7 = load volatile i64, i64* %bar, align 8
%8 = add i64 %6, %7
%9 = trunc i64 %8 to i32
ret i32 %9
; CHECK-LABEL: ld_b:
; CHECK: r0 = *(u8 *)skb[123]
; CHECK: r0 = *(u8 *)skb[r
}
declare i64 @llvm.bpf.load.byte(i8*, i64) #1
; Function Attrs: nounwind uwtable
define i32 @ld_h(i8* %ctx, i8* %ctx2, i32 %foo) #0 {
%1 = tail call i64 @llvm.bpf.load.half(i8* %ctx, i64 123) #2
%2 = sext i32 %foo to i64
%3 = tail call i64 @llvm.bpf.load.half(i8* %ctx2, i64 %2) #2
%4 = add i64 %3, %1
%5 = trunc i64 %4 to i32
ret i32 %5
; CHECK-LABEL: ld_h:
; CHECK: r0 = *(u16 *)skb[r
; CHECK: r0 = *(u16 *)skb[123]
}
declare i64 @llvm.bpf.load.half(i8*, i64) #1
; Function Attrs: nounwind uwtable
define i32 @ld_w(i8* %ctx, i8* %ctx2, i32 %foo) #0 {
%1 = tail call i64 @llvm.bpf.load.word(i8* %ctx, i64 123) #2
%2 = sext i32 %foo to i64
%3 = tail call i64 @llvm.bpf.load.word(i8* %ctx2, i64 %2) #2
%4 = add i64 %3, %1
%5 = trunc i64 %4 to i32
ret i32 %5
; CHECK-LABEL: ld_w:
; CHECK: r0 = *(u32 *)skb[r
; CHECK: r0 = *(u32 *)skb[123]
}
declare i64 @llvm.bpf.load.word(i8*, i64) #1
define i32 @ld_pseudo() #0 {
entry:
%call = tail call i64 @llvm.bpf.pseudo(i64 2, i64 3)
tail call void inttoptr (i64 4 to void (i64, i32)*)(i64 %call, i32 4) #2
ret i32 0
; CHECK-LABEL: ld_pseudo:
; CHECK: ld_pseudo r1, 2, 3
}
declare i64 @llvm.bpf.pseudo(i64, i64) #2
define i32 @bswap(i64 %a, i64 %b, i64 %c) #0 {
entry:
%0 = tail call i64 @llvm.bswap.i64(i64 %a)
%conv = trunc i64 %b to i32
%1 = tail call i32 @llvm.bswap.i32(i32 %conv)
%conv1 = zext i32 %1 to i64
%add = add i64 %conv1, %0
%conv2 = trunc i64 %c to i16
%2 = tail call i16 @llvm.bswap.i16(i16 %conv2)
%conv3 = zext i16 %2 to i64
%add4 = add i64 %add, %conv3
%conv5 = trunc i64 %add4 to i32
ret i32 %conv5
; CHECK-LABEL: bswap:
; CHECK: bswap64 r1
; CHECK: bswap32 r2
; CHECK: r2 += r1
; CHECK: bswap16 r3
; CHECK: r2 += r3
}
declare i64 @llvm.bswap.i64(i64) #1
declare i32 @llvm.bswap.i32(i32) #1
declare i16 @llvm.bswap.i16(i16) #1
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