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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -mattr=+d -verify-machineinstrs < %s \
; RUN: | FileCheck -check-prefix=RV32IFD %s
; RUN: llc -mtriple=riscv64 -mattr=+d -verify-machineinstrs < %s \
; RUN: | FileCheck -check-prefix=RV64IFD %s
define double @func(double %d, i32 %n) nounwind {
; RV32IFD-LABEL: func:
; RV32IFD: # %bb.0: # %entry
; RV32IFD-NEXT: addi sp, sp, -32
; RV32IFD-NEXT: sw ra, 28(sp) # 4-byte Folded Spill
; RV32IFD-NEXT: sw a0, 16(sp)
; RV32IFD-NEXT: sw a1, 20(sp)
; RV32IFD-NEXT: fld ft0, 16(sp)
; RV32IFD-NEXT: beqz a2, .LBB0_2
; RV32IFD-NEXT: # %bb.1: # %if.else
; RV32IFD-NEXT: addi a2, a2, -1
; RV32IFD-NEXT: fsd ft0, 16(sp)
; RV32IFD-NEXT: lw a0, 16(sp)
; RV32IFD-NEXT: lw a1, 20(sp)
; RV32IFD-NEXT: fsd ft0, 8(sp) # 8-byte Folded Spill
; RV32IFD-NEXT: call func@plt
; RV32IFD-NEXT: sw a0, 16(sp)
; RV32IFD-NEXT: sw a1, 20(sp)
; RV32IFD-NEXT: fld ft0, 16(sp)
; RV32IFD-NEXT: fld ft1, 8(sp) # 8-byte Folded Reload
; RV32IFD-NEXT: fadd.d ft0, ft0, ft1
; RV32IFD-NEXT: .LBB0_2: # %return
; RV32IFD-NEXT: fsd ft0, 16(sp)
; RV32IFD-NEXT: lw a0, 16(sp)
; RV32IFD-NEXT: lw a1, 20(sp)
; RV32IFD-NEXT: lw ra, 28(sp) # 4-byte Folded Reload
; RV32IFD-NEXT: addi sp, sp, 32
; RV32IFD-NEXT: ret
;
; RV64IFD-LABEL: func:
; RV64IFD: # %bb.0: # %entry
; RV64IFD-NEXT: addi sp, sp, -16
; RV64IFD-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
; RV64IFD-NEXT: sext.w a2, a1
; RV64IFD-NEXT: fmv.d.x ft0, a0
; RV64IFD-NEXT: beqz a2, .LBB0_2
; RV64IFD-NEXT: # %bb.1: # %if.else
; RV64IFD-NEXT: addiw a1, a1, -1
; RV64IFD-NEXT: fmv.x.d a0, ft0
; RV64IFD-NEXT: fsd ft0, 0(sp) # 8-byte Folded Spill
; RV64IFD-NEXT: call func@plt
; RV64IFD-NEXT: fmv.d.x ft0, a0
; RV64IFD-NEXT: fld ft1, 0(sp) # 8-byte Folded Reload
; RV64IFD-NEXT: fadd.d ft0, ft0, ft1
; RV64IFD-NEXT: .LBB0_2: # %return
; RV64IFD-NEXT: fmv.x.d a0, ft0
; RV64IFD-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
; RV64IFD-NEXT: addi sp, sp, 16
; RV64IFD-NEXT: ret
entry:
%cmp = icmp eq i32 %n, 0
br i1 %cmp, label %return, label %if.else
if.else:
%sub = add i32 %n, -1
%call = tail call double @func(double %d, i32 %sub)
%add = fadd double %call, %d
ret double %add
return:
ret double %d
}
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