# RUN: llvm-mc -triple riscv32 -show-encoding -mattr=+c,+relax \ # RUN: -M no-aliases %s | FileCheck -check-prefixes=CHECK-ASM,CHECK-INST %s # RUN: llvm-mc -triple riscv32 -filetype=obj -mattr=+c,+relax %s \ # RUN: | llvm-objdump --triple=riscv32 --mattr=+c -dr --no-print-imm-hex -M no-aliases - \ # RUN: | FileCheck -check-prefixes=CHECK-OBJDUMP,CHECK-INST %s # RUN: llvm-mc -triple riscv64 -show-encoding \ # RUN: -M no-aliases -mattr=+c,+relax %s \ # RUN: | FileCheck -check-prefixes=CHECK-ASM %s # RUN: llvm-mc -triple riscv64 -filetype=obj -mattr=+c,+relax %s \ # RUN: | llvm-objdump --triple=riscv64 --mattr=+c -dr --no-print-imm-hex -M no-aliases - \ # RUN: | FileCheck -check-prefixes=CHECK-OBJDUMP,CHECK-INST %s ## `.option exact` disables a variety of assembler behaviour: ## - automatic compression ## - branch relaxation (of short branches to longer equivalent sequences) ## - linker relaxation (emitting R_RISCV_RELAX) ## `.option noexact` enables these behaviours again. It is also the default. # CHECK-OBJDUMP: 4108 # CHECK-INST: c.lw a0, 0(a0) # CHECK-ASM: # encoding: [0x08,0x41] lw a0, 0(a0) # CHECK-OBJDUMP: 4108 # CHECK-INST: c.lw a0, 0(a0) # CHECK-ASM: # encoding: [0x08,0x41] c.lw a0, 0(a0) # CHECK-ASM: call undefined # CHECK-ASM-SAME: # encoding: [0x97'A',A,A,A,0xe7'A',0x80'A',A,A] # CHECK-OBJDUMP: auipc ra, 0 # CHECK-OBJDUMP-NEXT: R_RISCV_CALL_PLT undefined # CHECK-OBJDUMP-NEXT: R_RISCV_RELAX *ABS* # CHECK-OBJDUMP-NEXT: jalr ra call undefined@plt # CHECK-ASM: beq a0, a1, undefined # CHECK-ASM-SAME: # encoding: [0x63'A',A,0xb5'A',A] # CHECK-OBJDUMP: bne a0, a1, 0x14 # CHECK-OBJDUMP-NEXT: jal zero, 0x10 # CHECK-OBJDUMP-NEXT: R_RISCV_JAL undefined beq a0, a1, undefined # CHECK-ASM: c.j undefined # CHECK-ASM-SAME: # encoding: [0bAAAAAA01,0b101AAAAA] # CHECK-OBJDUMP: jal zero, 0x14 # CHECK-OBJDUMP-NEXT: R_RISCV_JAL undefined c.j undefined # CHECK-ASM: .option exact .option exact # CHECK-OBJDUMP: 00052503 # CHECK-INST: lw a0, 0(a0) # CHECK-ASM: # encoding: [0x03,0x25,0x05,0x00] lw a0, 0(a0) # CHECK-OBJDUMP: 4108 # CHECK-INST: c.lw a0, 0(a0) # CHECK-ASM: # encoding: [0x08,0x41] c.lw a0, 0(a0) # CHECK-ASM: call undefined # CHECK-ASM-SAME: # encoding: [0x97'A',A,A,A,0xe7'A',0x80'A',A,A] # CHECK-OBJDUMP: auipc ra, 0 # CHECK-OBJDUMP-NEXT: R_RISCV_CALL_PLT undefined # CHECK-OBJDUMP-NOT: R_RISCV_RELAX # CHECK-OBJDUMP-NEXT: jalr ra, 0(ra) call undefined@plt # CHECK-ASM: beq a0, a1, undefined # CHECK-ASM-SAME: # encoding: [0x63'A',A,0xb5'A',A] # CHECK-OBJDUMP: beq a0, a1, 0x26 # CHECK-OBJDUMP-NEXT: R_RISCV_BRANCH undefined beq a0, a1, undefined # CHECK-ASM: c.j undefined # CHECK-ASM-SAME: # encoding: [0bAAAAAA01,0b101AAAAA] # CHECK-OBJDUMP: c.j 0x2a # CHECK-OBJDUMP-NEXT: R_RISCV_RVC_JUMP undefined c.j undefined # CHECK-ASM: .option noexact .option noexact # CHECK-OBJDUMP: 4108 # CHECK-INST: c.lw a0, 0(a0) # CHECK-ASM: # encoding: [0x08,0x41] lw a0, 0(a0) # CHECK-OBJDUMP: 4108 # CHECK-INST: c.lw a0, 0(a0) # CHECK-ASM: # encoding: [0x08,0x41] c.lw a0, 0(a0) # CHECK-ASM: call undefined # CHECK-ASM-SAME: # encoding: [0x97'A',A,A,A,0xe7'A',0x80'A',A,A] # CHECK-OBJDUMP: auipc ra, 0 # CHECK-OBJDUMP-NEXT: R_RISCV_CALL_PLT undefined # CHECK-OBJDUMP-NEXT: R_RISCV_RELAX *ABS* # CHECK-OBJDUMP-NEXT: jalr ra, 0(ra) call undefined@plt # CHECK-ASM: beq a0, a1, undefined # CHECK-ASM-SAME: # encoding: [0x63'A',A,0xb5'A',A] # CHECK-OBJDUMP: bne a0, a1, 0x40 # CHECK-OBJDUMP-NEXT: jal zero, 0x3c # CHECK-OBJDUMP-NEXT: R_RISCV_JAL undefined beq a0, a1, undefined # CHECK-ASM: c.j undefined # CHECK-ASM-SAME: # encoding: [0bAAAAAA01,0b101AAAAA] # CHECK-OBJDUMP: jal zero, 0x40 # CHECK-OBJDUMP-NEXT: R_RISCV_JAL undefined c.j undefined