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07bbffd274
Implement microMIPS 16-bit unconditional branch instruction B. Implemented 16-bit microMIPS unconditional instruction has real name B16, and B is an alias which expands to either B16 or BEQ according to the rules: b 256 --> b16 256 # R_MICROMIPS_PC10_S1 b 12256 --> beq $zero, $zero, 12256 # R_MICROMIPS_PC16_S1 b label --> beq $zero, $zero, label # R_MICROMIPS_PC16_S1 Differential Revision: http://reviews.llvm.org/D3514 llvm-svn: 226657
92 lines
4.8 KiB
ArmAsm
92 lines
4.8 KiB
ArmAsm
# RUN: llvm-mc %s -triple=mipsel-unknown-linux -show-encoding \
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# RUN: -mattr=micromips | FileCheck %s -check-prefix=CHECK-FIXUP
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# RUN: llvm-mc %s -filetype=obj -triple=mipsel-unknown-linux \
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# RUN: -mattr=micromips | llvm-readobj -r \
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# RUN: | FileCheck %s -check-prefix=CHECK-ELF
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#------------------------------------------------------------------------------
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# Check that the assembler can handle the documented syntax
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# for relocations.
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#------------------------------------------------------------------------------
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# CHECK-FIXUP: beqz16 $6, bar # encoding: [0b0AAAAAAA,0x8f]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC7_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: bnez16 $6, bar # encoding: [0b0AAAAAAA,0xaf]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC7_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: b16 bar # encoding: [A,0b110011AA]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC10_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: b bar # encoding: [A,0x94'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x0c]
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# CHECK-FIXUP: beq $3, $4, bar # encoding: [0x83'A',0x94'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: bne $3, $4, bar # encoding: [0x83'A',0xb4'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: bgez $4, bar # encoding: [0x44'A',0x40'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: bgtz $4, bar # encoding: [0xc4'A',0x40'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: blez $4, bar # encoding: [0x84'A',0x40'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: bltz $4, bar # encoding: [0x04'A',0x40'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: bgezal $4, bar # encoding: [0x64'A',0x40'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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# CHECK-FIXUP: bltzal $4, bar # encoding: [0x24'A',0x40'A',0x00,0x00]
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# CHECK-FIXUP: # fixup A - offset: 0,
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# CHECK-FIXUP: value: bar, kind: fixup_MICROMIPS_PC16_S1
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# CHECK-FIXUP: nop # encoding: [0x00,0x00,0x00,0x00]
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#------------------------------------------------------------------------------
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# Check that the appropriate relocations were created.
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#------------------------------------------------------------------------------
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# CHECK-ELF: Relocations [
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC7_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC7_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC10_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: 0x{{[0-9,A-F]+}} R_MICROMIPS_PC16_S1
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# CHECK-ELF: ]
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.text
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.type main, @function
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.set micromips
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main:
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beqz16 $6, bar
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bnez16 $6, bar
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b16 bar
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b bar
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beq $3, $4, bar
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bne $3, $4, bar
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bgez $4, bar
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bgtz $4, bar
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blez $4, bar
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bltz $4, bar
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bgezal $4, bar
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bltzal $4, bar
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