39 lines
1.4 KiB
Plaintext
39 lines
1.4 KiB
Plaintext
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## Handle unrecognized arch attributes.
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## Encode an unrecognized arch feature into an object file and try to decode it.
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## The expected behavior is to ignore the unrecognized arch feature and
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## continue to process the following arch features.
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##
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## The object file has the "rv32i2p0_x1p0_m2p0" arch feature. "x1p0" is an
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## unrecognized architecture extension. llvm-objdump will ignore it and decode
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## "mul" instruction correctly according to "m2p0" in the arch feature.
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##
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## This test cannot be assembly because the test needs an unrecognized arch
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## feature and `llvm-mc` will filter out the unrecognized arch feature.
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# RUN: yaml2obj %s -D BITS=32 -o %t.32.o
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# RUN: llvm-objdump -d %t.32.o \
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# RUN: | FileCheck %s --check-prefixes=DISASM
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# RUN: yaml2obj %s -D BITS=64 -o %t.64.o
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# RUN: llvm-objdump -d %t.64.o \
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# RUN: | FileCheck %s --check-prefixes=DISASM
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# DISASM: mul a0, a1, a2
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--- !ELF
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FileHeader:
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Class: ELFCLASS[[BITS]]
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_RISCV
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
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## The content is the encoding of "mul a0, a1, a2".
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## The encoding could be decoded only when the "m" extension is enabled.
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Content: 3385C502
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- Name: .riscv.attributes
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Type: SHT_RISCV_ATTRIBUTES
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## The content is the encoding of the arch feature "rv32i2p0_x1p0_m2p0"
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Content: 412300000072697363760001190000000572763332693270305F783170305F6D32703000
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