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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
26 lines
737 B
LLVM
26 lines
737 B
LLVM
; RUN: llc < %s -march=bpf | FileCheck %s
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%struct.key_t = type { i32, [16 x i8] }
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; Function Attrs: nounwind uwtable
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define i32 @test() #0 {
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%key = alloca %struct.key_t, align 4
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%1 = bitcast %struct.key_t* %key to i8*
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; CHECK: r1 = 0
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; CHECK: *(u32 *)(r10 - 8) = r1
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; CHECK: *(u64 *)(r10 - 16) = r1
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; CHECK: *(u64 *)(r10 - 24) = r1
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call void @llvm.memset.p0i8.i64(i8* %1, i8 0, i64 20, i32 4, i1 false)
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; CHECK: r1 = r10
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; CHECK: r1 += -20
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%2 = getelementptr inbounds %struct.key_t, %struct.key_t* %key, i64 0, i32 1, i64 0
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; CHECK: call test1
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call void @test1(i8* %2) #3
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ret i32 0
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}
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; Function Attrs: nounwind argmemonly
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #1
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declare void @test1(i8*) #2
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