| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefix=RV32I %s |
| ; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \ |
| ; RUN: | FileCheck -check-prefix=RV64I %s |
| |
| @gi = external global i32 |
| |
| define i32 @constraint_r(i32 %a) nounwind { |
| ; RV32I-LABEL: constraint_r: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: lui a1, %hi(gi) |
| ; RV32I-NEXT: lw a1, %lo(gi)(a1) |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: add a0, a0, a1 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_r: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: lui a1, %hi(gi) |
| ; RV64I-NEXT: lwu a1, %lo(gi)(a1) |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: add a0, a0, a1 |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| %1 = load i32, i32* @gi |
| %2 = tail call i32 asm "add $0, $1, $2", "=r,r,r"(i32 %a, i32 %1) |
| ret i32 %2 |
| } |
| |
| define i32 @constraint_i(i32 %a) nounwind { |
| ; RV32I-LABEL: constraint_i: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: addi a0, a0, 113 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_i: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: addi a0, a0, 113 |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| %1 = load i32, i32* @gi |
| %2 = tail call i32 asm "addi $0, $1, $2", "=r,r,i"(i32 %a, i32 113) |
| ret i32 %2 |
| } |
| |
| define void @constraint_m(i32* %a) nounwind { |
| ; RV32I-LABEL: constraint_m: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_m: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| call void asm sideeffect "", "=*m"(i32* %a) |
| ret void |
| } |
| |
| define i32 @constraint_m2(i32* %a) nounwind { |
| ; RV32I-LABEL: constraint_m2: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: lw a0, 0(a0) |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_m2: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: lw a0, 0(a0) |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| %1 = tail call i32 asm "lw $0, $1", "=r,*m"(i32* %a) nounwind |
| ret i32 %1 |
| } |
| |
| define void @constraint_I() nounwind { |
| ; RV32I-LABEL: constraint_I: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: addi a0, a0, 2047 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: addi a0, a0, -2048 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_I: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: addi a0, a0, 2047 |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: addi a0, a0, -2048 |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| tail call void asm sideeffect "addi a0, a0, $0", "I"(i32 2047) |
| tail call void asm sideeffect "addi a0, a0, $0", "I"(i32 -2048) |
| ret void |
| } |
| |
| define void @constraint_J() nounwind { |
| ; RV32I-LABEL: constraint_J: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: addi a0, a0, 0 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_J: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: addi a0, a0, 0 |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| tail call void asm sideeffect "addi a0, a0, $0", "J"(i32 0) |
| ret void |
| } |
| |
| define void @constraint_K() nounwind { |
| ; RV32I-LABEL: constraint_K: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: csrwi mstatus, 31 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: csrwi mstatus, 0 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_K: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: csrwi mstatus, 31 |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: csrwi mstatus, 0 |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| tail call void asm sideeffect "csrwi mstatus, $0", "K"(i32 31) |
| tail call void asm sideeffect "csrwi mstatus, $0", "K"(i32 0) |
| ret void |
| } |
| |
| define void @constraint_A(i8* %a) nounwind { |
| ; RV32I-LABEL: constraint_A: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: sb s0, 0(a0) |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: lb s1, 0(a0) |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| ; |
| ; RV64I-LABEL: constraint_A: |
| ; RV64I: # %bb.0: |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: sb s0, 0(a0) |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: #APP |
| ; RV64I-NEXT: lb s1, 0(a0) |
| ; RV64I-NEXT: #NO_APP |
| ; RV64I-NEXT: ret |
| tail call void asm sideeffect "sb s0, $0", "*A"(i8* %a) |
| tail call void asm sideeffect "lb s1, $0", "*A"(i8* %a) |
| ret void |
| } |
| |
| define i32 @modifier_z_zero(i32 %a) nounwind { |
| ; RV32I-LABEL: modifier_z_zero: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: add a0, a0, zero |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| %1 = tail call i32 asm "add $0, $1, ${2:z}", "=r,r,r"(i32 %a, i32 0) |
| ret i32 %1 |
| } |
| |
| define i32 @modifier_z_nonzero(i32 %a) nounwind { |
| ; RV32I-LABEL: modifier_z_nonzero: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: addi a1, zero, 1 |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: add a0, a0, a1 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| %1 = tail call i32 asm "add $0, $1, ${2:z}", "=r,r,r"(i32 %a, i32 1) |
| ret i32 %1 |
| } |
| |
| define i32 @modifier_i_imm(i32 %a) nounwind { |
| ; RV32I-LABEL: modifier_i_imm: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: addi a0, a0, 1 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| %1 = tail call i32 asm "add${2:i} $0, $1, $2", "=r,r,ri"(i32 %a, i32 1) |
| ret i32 %1 |
| } |
| |
| define i32 @modifier_i_reg(i32 %a, i32 %b) nounwind { |
| ; RV32I-LABEL: modifier_i_reg: |
| ; RV32I: # %bb.0: |
| ; RV32I-NEXT: #APP |
| ; RV32I-NEXT: add a0, a0, a1 |
| ; RV32I-NEXT: #NO_APP |
| ; RV32I-NEXT: ret |
| %1 = tail call i32 asm "add${2:i} $0, $1, $2", "=r,r,ri"(i32 %a, i32 %b) |
| ret i32 %1 |
| } |
| |
| ; TODO: expend tests for more complex constraints, out of range immediates etc |