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Re-commit r247405: [mips] Add missing MIPS-I disassembler tests.

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These tests were found by llvm-mc-fuzzer (see http://reviews.llvm.org/D12723)
and verified by checking the disassembler output is accepted by GAS.

The problematic tests from the previous commit have been moved to
valid-xfail.txt for now.

Also, give invalid instructions some coverage. invalid-xfail.txt contains
instructions that should be invalid but successfully disassemble.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247407 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Sanders 2015-09-11 12:59:03 +00:00
parent 0207031d90
commit f9c4a2d3bf
4 changed files with 67 additions and 0 deletions
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11
test/MC/Disassembler/Mips/mips1/invalid-xfail.txt Normal file
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@ -0,0 +1,11 @@
# RUN: llvm-mc %s -triple=mips-unknown-linux -disassemble -mcpu=mips1 | FileCheck %s
# XFAIL: *
# Start with a valid instruction. Otherwise llvm-mc gives up immediately.
0x00 0x00 0x00 0x00
# CHECK: .text
0x45 0x08 0x14 0x02 # bc1f $fcc2, 20488 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x45 0x09 0x01 0x01 # bc1t $fcc2, 1028 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x48 0x00 0x00 0x01 # mfc2 $zero, $0, 1 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x48 0x86 0x00 0x04 # mtc2 $6, $0, 4 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding

45
test/MC/Disassembler/Mips/mips1/invalid.txt Normal file
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@ -0,0 +1,45 @@
# RUN: llvm-mc %s -triple=mips-unknown-linux -disassemble -mcpu=mips1 |& FileCheck %s
# Start with a valid instruction. Otherwise llvm-mc gives up immediately.
0x00 0x00 0x00 0x00
0x00 0x11 0x00 0x0f # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x00 0x30 0xc0 0x42 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x00 0xab 0x09 0x4a # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x02 0x80 0x44 0xf0 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x02 0xc5 0x40 0x01 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x03 0x21 0x22 0xd5 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x03 0xa0 0x08 0x13 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x04 0x1c 0x63 0xee # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x40 0x3c 0x00 0x5d # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x42 0x02 0x00 0x27 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x42 0x1d 0x60 0x25 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x43 0xa2 0x00 0x18 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x44 0x20 0x86 0x06 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x44 0xe6 0xd0 0x04 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x45 0x03 0x80 0x00 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x45 0xe9 0xce 0x01 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x00 0x03 0x7a # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x00 0x1a 0xa5 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x00 0x78 0x4f # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x00 0xe5 0xe1 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x00 0xe6 0xcc # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x20 0x75 0x46 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x21 0xaa 0x00 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x21 0xaa 0x11 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x30 0x14 0xc1 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x46 0x3c 0xe8 0x3b # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x4c 0x00 0x3b 0x00 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x4d 0x09 0x92 0x01 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x4d 0x20 0x03 0x21 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x4d 0x20 0x03 0x8d # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x56 0x28 0x40 0x0d # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x5e 0x03 0xc8 0x13 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x73 0x11 0x00 0x01 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x75 0x68 0x90 0xf3 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0x7d 0x00 0xa0 0x71 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0xbe 0x03 0x46 0x40 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0xd8 0x07 0x44 0x00 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0xde 0xe3 0x06 0xef # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0xe0 0x46 0x3b 0x29 # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding
0xf7 0x06 0xdc 0xef # CHECK: :[[@LINE]]:1: warning: invalid instruction encoding

3
test/MC/Disassembler/Mips/mips1/valid-mips1.txt
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@ -45,6 +45,9 @@
0x04 0x11 0x14 0x9b # CHECK: bal 21104
0x04 0xd0 0x14 0x9b # CHECK: bltzal $6, 21104
0x04 0xd1 0x14 0x9b # CHECK: bgezal $6, 21104
0x08 0x00 0x00 0x01 # CHECK: j 4
0x09 0x33 0x00 0x2a # CHECK: j 80478376
0x0b 0x2a 0xd1 0x44 # CHECK: j 212550928
0x21 0x08 0xff 0xfe # CHECK: addi $8, $8, -2
0x21 0x2d 0x66 0xd2 # CHECK: addi $13, $9, 26322
0x21 0xad 0xe6 0x90 # CHECK: addi $13, $13, -6512

8
test/MC/Disassembler/Mips/mips1/valid-xfail.txt
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@ -1,4 +1,12 @@
# RUN: llvm-mc %s -triple=mips-unknown-linux -disassemble -mcpu=mips1 | FileCheck %s
# XFAIL: *
0x10 0x00 0x00 0x02 # CHECK: b 8
0x10 0x00 0x00 0x05 # CHECK: b 20
0x10 0x00 0x28 0x09 # CHECK: b 40996
0x10 0x04 0x14 0xe1 # CHECK: beq $zero, $4, 21380
0x11 0x00 0x00 0xc3 # CHECK: beqz $8, 780
0x12 0x88 0x00 0x16 # CHECK: beq $20, $8, 88
0x15 0x00 0x88 0x13 # CHECK: bnez $8, -122804
0x15 0x8a 0x9f 0x89 # CHECK: bne $12, $10, -98780
0xc2 0x44 0xe3 0x67 # CHECK: lwc0 $4, -7321($18)
0xe2 0x64 0x49 0xd8 # CHECK: swc0 $4, 18904($19)