; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=riscv32 -mattr=+f -verify-machineinstrs < %s \ ; RUN: | FileCheck -check-prefix=RV32IF %s ; RUN: llc -mtriple=riscv64 -mattr=+f -verify-machineinstrs < %s \ ; RUN: | FileCheck -check-prefix=RV64IF %s ; For RV64F, fcvt.l.s is semantically equivalent to fcvt.w.s in this case ; because fptosi will produce poison if the result doesn't fit into an i32. define i32 @fcvt_w_s(float %a) nounwind { ; RV32IF-LABEL: fcvt_w_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a0 ; RV32IF-NEXT: fcvt.w.s a0, ft0, rtz ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_w_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fcvt.l.s a0, ft0, rtz ; RV64IF-NEXT: ret %1 = fptosi float %a to i32 ret i32 %1 } ; For RV64F, fcvt.lu.s is semantically equivalent to fcvt.wu.s in this case ; because fptoui will produce poison if the result doesn't fit into an i32. define i32 @fcvt_wu_s(float %a) nounwind { ; RV32IF-LABEL: fcvt_wu_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a0 ; RV32IF-NEXT: fcvt.wu.s a0, ft0, rtz ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_wu_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fcvt.lu.s a0, ft0, rtz ; RV64IF-NEXT: ret %1 = fptoui float %a to i32 ret i32 %1 } define i32 @fmv_x_w(float %a, float %b) nounwind { ; RV32IF-LABEL: fmv_x_w: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a1 ; RV32IF-NEXT: fmv.w.x ft1, a0 ; RV32IF-NEXT: fadd.s ft0, ft1, ft0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmv_x_w: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a1 ; RV64IF-NEXT: fmv.w.x ft1, a0 ; RV64IF-NEXT: fadd.s ft0, ft1, ft0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret ; Ensure fmv.x.w is generated even for a soft float calling convention %1 = fadd float %a, %b %2 = bitcast float %1 to i32 ret i32 %2 } define float @fcvt_s_w(i32 %a) nounwind { ; RV32IF-LABEL: fcvt_s_w: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fcvt.s.w ft0, a0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_s_w: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fcvt.s.w ft0, a0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = sitofp i32 %a to float ret float %1 } define float @fcvt_s_wu(i32 %a) nounwind { ; RV32IF-LABEL: fcvt_s_wu: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fcvt.s.wu ft0, a0 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_s_wu: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fcvt.s.wu ft0, a0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = uitofp i32 %a to float ret float %1 } define float @fmv_w_x(i32 %a, i32 %b) nounwind { ; RV32IF-LABEL: fmv_w_x: ; RV32IF: # %bb.0: ; RV32IF-NEXT: fmv.w.x ft0, a0 ; RV32IF-NEXT: fmv.w.x ft1, a1 ; RV32IF-NEXT: fadd.s ft0, ft0, ft1 ; RV32IF-NEXT: fmv.x.w a0, ft0 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fmv_w_x: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fmv.w.x ft1, a1 ; RV64IF-NEXT: fadd.s ft0, ft0, ft1 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret ; Ensure fmv.w.x is generated even for a soft float calling convention %1 = bitcast i32 %a to float %2 = bitcast i32 %b to float %3 = fadd float %1, %2 ret float %3 } define i64 @fcvt_l_s(float %a) nounwind { ; RV32IF-LABEL: fcvt_l_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: addi sp, sp, -16 ; RV32IF-NEXT: sw ra, 12(sp) ; RV32IF-NEXT: call __fixsfdi ; RV32IF-NEXT: lw ra, 12(sp) ; RV32IF-NEXT: addi sp, sp, 16 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_l_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fcvt.l.s a0, ft0, rtz ; RV64IF-NEXT: ret %1 = fptosi float %a to i64 ret i64 %1 } define i64 @fcvt_lu_s(float %a) nounwind { ; RV32IF-LABEL: fcvt_lu_s: ; RV32IF: # %bb.0: ; RV32IF-NEXT: addi sp, sp, -16 ; RV32IF-NEXT: sw ra, 12(sp) ; RV32IF-NEXT: call __fixunssfdi ; RV32IF-NEXT: lw ra, 12(sp) ; RV32IF-NEXT: addi sp, sp, 16 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_lu_s: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fmv.w.x ft0, a0 ; RV64IF-NEXT: fcvt.lu.s a0, ft0, rtz ; RV64IF-NEXT: ret %1 = fptoui float %a to i64 ret i64 %1 } define float @fcvt_s_l(i64 %a) nounwind { ; RV32IF-LABEL: fcvt_s_l: ; RV32IF: # %bb.0: ; RV32IF-NEXT: addi sp, sp, -16 ; RV32IF-NEXT: sw ra, 12(sp) ; RV32IF-NEXT: call __floatdisf ; RV32IF-NEXT: lw ra, 12(sp) ; RV32IF-NEXT: addi sp, sp, 16 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_s_l: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fcvt.s.l ft0, a0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = sitofp i64 %a to float ret float %1 } define float @fcvt_s_lu(i64 %a) nounwind { ; RV32IF-LABEL: fcvt_s_lu: ; RV32IF: # %bb.0: ; RV32IF-NEXT: addi sp, sp, -16 ; RV32IF-NEXT: sw ra, 12(sp) ; RV32IF-NEXT: call __floatundisf ; RV32IF-NEXT: lw ra, 12(sp) ; RV32IF-NEXT: addi sp, sp, 16 ; RV32IF-NEXT: ret ; ; RV64IF-LABEL: fcvt_s_lu: ; RV64IF: # %bb.0: ; RV64IF-NEXT: fcvt.s.lu ft0, a0 ; RV64IF-NEXT: fmv.x.w a0, ft0 ; RV64IF-NEXT: ret %1 = uitofp i64 %a to float ret float %1 }