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719b0399a8
since bpf instruction set was introduced people learned to read and understand kernel verifier output whereas llvm asm output stayed obscure and unknown. Convert llvm to emit assembler text similar to kernel to avoid this discrepancy Signed-off-by: Alexei Starovoitov <ast@kernel.org> llvm-svn: 287300
46 lines
1.2 KiB
LLVM
46 lines
1.2 KiB
LLVM
; RUN: llc -march=bpfel -show-mc-encoding < %s | FileCheck %s
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define i8 @mov(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: mov:
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; CHECK: r0 = r2 # encoding: [0xbf,0x20,0x00,0x00,0x00,0x00,0x00,0x00]
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; CHECK: exit # encoding: [0x95,0x00,0x00,0x00,0x00,0x00,0x00,0x00]
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ret i8 %b
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}
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define i8 @add(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: add:
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; CHECK: r1 += r2 # encoding: [0x0f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
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; CHECK: r0 = r1 # encoding: [0xbf,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = add i8 %a, %b
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ret i8 %1
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}
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define i8 @and(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: and:
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; CHECK: r1 &= r2 # encoding: [0x5f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = and i8 %a, %b
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ret i8 %1
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}
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define i8 @bis(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: bis:
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; CHECK: r1 |= r2 # encoding: [0x4f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = or i8 %a, %b
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ret i8 %1
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}
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define i8 @xorand(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: xorand:
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; CHECK: r2 ^= -1 # encoding: [0xa7,0x02,0x00,0x00,0xff,0xff,0xff,0xff]
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%1 = xor i8 %b, -1
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%2 = and i8 %a, %1
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ret i8 %2
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}
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define i8 @xor(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: xor:
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; CHECK: r1 ^= r2 # encoding: [0xaf,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = xor i8 %a, %b
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ret i8 %1
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}
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