inline-asm.ll
7.36 KB
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; 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)
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
;
; RV64I-LABEL: modifier_z_zero:
; RV64I: # %bb.0:
; RV64I-NEXT: #APP
; RV64I-NEXT: add a0, a0, zero
; RV64I-NEXT: #NO_APP
; RV64I-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
;
; RV64I-LABEL: modifier_z_nonzero:
; RV64I: # %bb.0:
; RV64I-NEXT: addi a1, zero, 1
; RV64I-NEXT: #APP
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: #NO_APP
; RV64I-NEXT: ret
%1 = tail call i32 asm "add $0, $1, ${2:z}", "=r,r,r"(i32 %a, i32 1)
ret i32 %1
}
define i32 @modifier_i_imm(i32 %a) nounwind {
; RV32I-LABEL: modifier_i_imm:
; RV32I: # %bb.0:
; RV32I-NEXT: #APP
; RV32I-NEXT: addi a0, a0, 1
; RV32I-NEXT: #NO_APP
; RV32I-NEXT: ret
;
; RV64I-LABEL: modifier_i_imm:
; RV64I: # %bb.0:
; RV64I-NEXT: #APP
; RV64I-NEXT: addi a0, a0, 1
; RV64I-NEXT: #NO_APP
; RV64I-NEXT: ret
%1 = tail call i32 asm "add${2:i} $0, $1, $2", "=r,r,ri"(i32 %a, i32 1)
ret i32 %1
}
define i32 @modifier_i_reg(i32 %a, i32 %b) nounwind {
; RV32I-LABEL: modifier_i_reg:
; RV32I: # %bb.0:
; RV32I-NEXT: #APP
; RV32I-NEXT: add a0, a0, a1
; RV32I-NEXT: #NO_APP
; RV32I-NEXT: ret
;
; RV64I-LABEL: modifier_i_reg:
; RV64I: # %bb.0:
; RV64I-NEXT: #APP
; RV64I-NEXT: add a0, a0, a1
; RV64I-NEXT: #NO_APP
; RV64I-NEXT: ret
%1 = tail call i32 asm "add${2:i} $0, $1, $2", "=r,r,ri"(i32 %a, i32 %b)
ret i32 %1
}
define void @operand_global() nounwind {
; RV32I-LABEL: operand_global:
; RV32I: # %bb.0:
; RV32I-NEXT: #APP
; RV32I-NEXT: .8byte gi
; RV32I-NEXT: #NO_APP
; RV32I-NEXT: ret
;
; RV64I-LABEL: operand_global:
; RV64I: # %bb.0:
; RV64I-NEXT: #APP
; RV64I-NEXT: .8byte gi
; RV64I-NEXT: #NO_APP
; RV64I-NEXT: ret
tail call void asm sideeffect ".8byte $0", "i"(i32* @gi)
ret void
}
define void @operand_block_address() nounwind {
; RV32I-LABEL: operand_block_address:
; RV32I: # %bb.0:
; RV32I-NEXT: #APP
; RV32I-NEXT: j .Ltmp0
; RV32I-NEXT: #NO_APP
; RV32I-NEXT: .Ltmp0: # Block address taken
; RV32I-NEXT: # %bb.1: # %bb
; RV32I-NEXT: ret
;
; RV64I-LABEL: operand_block_address:
; RV64I: # %bb.0:
; RV64I-NEXT: #APP
; RV64I-NEXT: j .Ltmp0
; RV64I-NEXT: #NO_APP
; RV64I-NEXT: .Ltmp0: # Block address taken
; RV64I-NEXT: # %bb.1: # %bb
; RV64I-NEXT: ret
call void asm sideeffect "j $0", "i"(i8* blockaddress(@operand_block_address, %bb))
br label %bb
bb:
ret void
}
; TODO: expand tests for more complex constraints, out of range immediates etc