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