derek.holloway
7502bf64a4
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102 lines
3.6 KiB
ArmAsm
102 lines
3.6 KiB
ArmAsm
# RUN: llvm-mc --triple=riscv32be %s --show-encoding \
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# RUN: | FileCheck --check-prefixes=CHECK-FIXUP,CHECK-ENCODING %s
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# RUN: llvm-mc --filetype=obj --triple=riscv32be %s \
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# RUN: | llvm-objdump -d - | FileCheck --check-prefix=CHECK-INSTR %s
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# RUN: llvm-mc --filetype=obj --triple=riscv32be %s \
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# RUN: | llvm-readobj -r - | FileCheck --check-prefix=CHECK-REL %s
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# RUN: llvm-mc --triple=riscv64be %s --show-encoding \
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# RUN: | FileCheck --check-prefixes=CHECK-FIXUP,CHECK-ENCODING %s
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# RUN: llvm-mc --filetype=obj --triple=riscv64be %s \
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# RUN: | llvm-objdump -d - | FileCheck --check-prefix=CHECK-INSTR %s
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# RUN: llvm-mc --filetype=obj --triple=riscv64be %s \
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# RUN: | llvm-readobj -r - | FileCheck --check-prefix=CHECK-REL %s
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## Checks that fixups that can be resolved within the same object file are
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## applied correctly on big-endian RISC-V targets.
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##
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## This test verifies that RISC-V instructions remain little-endian even on
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## big-endian systems. This is a fundamental property of RISC-V:
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## - Instructions are always little-endian
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## - Data can be big-endian or little-endian depending on the system
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.LBB0:
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addi t0, t0, 1
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# CHECK-ENCODING: encoding: [0x93,0x82,0x12,0x00]
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# CHECK-INSTR: addi t0, t0, 0x1
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lui t1, %hi(val)
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# CHECK-ENCODING: encoding: [0x37,0bAAAA0011,A,A]
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# CHECK-FIXUP: fixup A - offset: 0, value: %hi(val), kind: fixup_riscv_hi20
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# CHECK-INSTR: lui t1, 0x12345
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lw a0, %lo(val)(t1)
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# CHECK-ENCODING: encoding: [0x03,0x25,0bAAAA0011,A]
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# CHECK-FIXUP: fixup A - offset: 0, value: %lo(val), kind: fixup_riscv_lo12_i
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# CHECK-INSTR: lw a0, 0x678(t1)
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addi a1, t1, %lo(val)
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# CHECK-ENCODING: encoding: [0x93,0x05,0bAAAA0011,A]
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# CHECK-FIXUP: fixup A - offset: 0, value: %lo(val), kind: fixup_riscv_lo12_i
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# CHECK-INSTR: addi a1, t1, 0x678
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sw a0, %lo(val)(t1)
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# CHECK-ENCODING: encoding: [0x23'A',0x20'A',0xa3'A',A]
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# CHECK-FIXUP: fixup A - offset: 0, value: %lo(val), kind: fixup_riscv_lo12_s
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# CHECK-INSTR: sw a0, 0x678(t1)
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1:
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auipc t1, %pcrel_hi(.LBB0)
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# CHECK-ENCODING: encoding: [0x17,0bAAAA0011,A,A]
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# CHECK-FIXUP: fixup A - offset: 0, value: %pcrel_hi(.LBB0), kind: fixup_riscv_pcrel_hi20
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# CHECK-INSTR: auipc t1, 0
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addi t1, t1, %pcrel_lo(1b)
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# CHECK-ENCODING: encoding: [0x13,0x03,0bAAAA0011,A]
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# CHECK-FIXUP: fixup A - offset: 0, value: %pcrel_lo({{.*}}), kind: fixup_riscv_pcrel_lo12_i
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# CHECK-INSTR: addi t1, t1, -0x14
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sw t1, %pcrel_lo(1b)(t1)
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# CHECK-ENCODING: encoding: [0x23'A',0x20'A',0x63'A',A]
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# CHECK-FIXUP: fixup A - offset: 0, value: %pcrel_lo({{.*}}), kind: fixup_riscv_pcrel_lo12_s
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# CHECK-INSTR: sw t1, -0x14(t1)
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jal zero, .LBB0
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# CHECK-ENCODING: encoding: [0x6f,0bAAAA0000,A,A]
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# CHECK-FIXUP: fixup A - offset: 0, value: .LBB0, kind: fixup_riscv_jal
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# CHECK-INSTR: j 0x0 <.text>
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jal zero, .LBB2
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# CHECK-ENCODING: encoding: [0x6f,0bAAAA0000,A,A]
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# CHECK-FIXUP: fixup A - offset: 0, value: .LBB2, kind: fixup_riscv_jal
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# CHECK-INSTR: j 0x50d18 <.text+0x50d18>
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beq a0, a1, .LBB0
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# CHECK-ENCODING: encoding: [0x63'A',A,0xb5'A',A]
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# CHECK-FIXUP: fixup A - offset: 0, value: .LBB0, kind: fixup_riscv_branch
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# CHECK-INSTR: beq a0, a1, 0x0 <.text>
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blt a0, a1, .LBB1
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# CHECK-ENCODING: encoding: [0x63'A',0x40'A',0xb5'A',A]
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# CHECK-FIXUP: fixup A - offset: 0, value: .LBB1, kind: fixup_riscv_branch
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# CHECK-INSTR: blt a0, a1, 0x480 <.text+0x480>
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.fill 1104
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.LBB1:
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.fill 329876
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addi zero, zero, 0
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.LBB2:
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.set val, 0x12345678
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# CHECK-REL-NOT: R_RISCV
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.data
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.align 3
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data_label:
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.word val # On BE: 0x12345678 stored as [0x12, 0x34, 0x56, 0x78]
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.long val # On BE: 0x12345678 stored as [0x12, 0x34, 0x56, 0x78]
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.quad val # On BE: 0x0000000012345678 stored as [0x00, 0x00, 0x00, 0x00, 0x12, 0x34, 0x56, 0x78]
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