llvm/test/CodeGen/RISCV/bf16-promote.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv64 -mattr=+d -target-abi=lp64d < %s | FileCheck --check-prefixes=CHECK,RV64 %s
; RUN: llc -mtriple=riscv32 -mattr=+d -target-abi=ilp32d < %s | FileCheck --check-prefixes=CHECK,RV32 %s

define void @test_load_store(ptr %p, ptr %q) nounwind {
; CHECK-LABEL: test_load_store:
; CHECK:       # %bb.0:
; CHECK-NEXT:    lh a0, 0(a0)
; CHECK-NEXT:    sh a0, 0(a1)
; CHECK-NEXT:    ret
  %a = load bfloat, ptr %p
  store bfloat %a, ptr %q
  ret void
}

define float @test_fpextend_float(ptr %p) nounwind {
; CHECK-LABEL: test_fpextend_float:
; CHECK:       # %bb.0:
; CHECK-NEXT:    lhu a0, 0(a0)
; CHECK-NEXT:    slli a0, a0, 16
; CHECK-NEXT:    fmv.w.x fa0, a0
; CHECK-NEXT:    ret
  %a = load bfloat, ptr %p
  %r = fpext bfloat %a to float
  ret float %r
}

define double @test_fpextend_double(ptr %p) nounwind {
; CHECK-LABEL: test_fpextend_double:
; CHECK:       # %bb.0:
; CHECK-NEXT:    lhu a0, 0(a0)
; CHECK-NEXT:    slli a0, a0, 16
; CHECK-NEXT:    fmv.w.x fa5, a0
; CHECK-NEXT:    fcvt.d.s fa0, fa5
; CHECK-NEXT:    ret
  %a = load bfloat, ptr %p
  %r = fpext bfloat %a to double
  ret double %r
}

define void @test_fptrunc_float(float %f, ptr %p) nounwind {
; RV64-LABEL: test_fptrunc_float:
; RV64:       # %bb.0:
; RV64-NEXT:    addi sp, sp, -16
; RV64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT:    sd s0, 0(sp) # 8-byte Folded Spill
; RV64-NEXT:    mv s0, a0
; RV64-NEXT:    call __truncsfbf2
; RV64-NEXT:    fmv.x.w a0, fa0
; RV64-NEXT:    sh a0, 0(s0)
; RV64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT:    ld s0, 0(sp) # 8-byte Folded Reload
; RV64-NEXT:    addi sp, sp, 16
; RV64-NEXT:    ret
;
; RV32-LABEL: test_fptrunc_float:
; RV32:       # %bb.0:
; RV32-NEXT:    addi sp, sp, -16
; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
; RV32-NEXT:    mv s0, a0
; RV32-NEXT:    call __truncsfbf2
; RV32-NEXT:    fmv.x.w a0, fa0
; RV32-NEXT:    sh a0, 0(s0)
; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
; RV32-NEXT:    addi sp, sp, 16
; RV32-NEXT:    ret
  %a = fptrunc float %f to bfloat
  store bfloat %a, ptr %p
  ret void
}

define void @test_fptrunc_double(double %d, ptr %p) nounwind {
; RV64-LABEL: test_fptrunc_double:
; RV64:       # %bb.0:
; RV64-NEXT:    addi sp, sp, -16
; RV64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT:    sd s0, 0(sp) # 8-byte Folded Spill
; RV64-NEXT:    mv s0, a0
; RV64-NEXT:    call __truncdfbf2
; RV64-NEXT:    fmv.x.w a0, fa0
; RV64-NEXT:    sh a0, 0(s0)
; RV64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT:    ld s0, 0(sp) # 8-byte Folded Reload
; RV64-NEXT:    addi sp, sp, 16
; RV64-NEXT:    ret
;
; RV32-LABEL: test_fptrunc_double:
; RV32:       # %bb.0:
; RV32-NEXT:    addi sp, sp, -16
; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
; RV32-NEXT:    mv s0, a0
; RV32-NEXT:    call __truncdfbf2
; RV32-NEXT:    fmv.x.w a0, fa0
; RV32-NEXT:    sh a0, 0(s0)
; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
; RV32-NEXT:    addi sp, sp, 16
; RV32-NEXT:    ret
  %a = fptrunc double %d to bfloat
  store bfloat %a, ptr %p
  ret void
}

define void @test_fadd(ptr %p, ptr %q) nounwind {
; RV64-LABEL: test_fadd:
; RV64:       # %bb.0:
; RV64-NEXT:    addi sp, sp, -16
; RV64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
; RV64-NEXT:    sd s0, 0(sp) # 8-byte Folded Spill
; RV64-NEXT:    mv s0, a0
; RV64-NEXT:    lhu a0, 0(a1)
; RV64-NEXT:    lhu a1, 0(s0)
; RV64-NEXT:    slli a0, a0, 16
; RV64-NEXT:    slli a1, a1, 16
; RV64-NEXT:    fmv.w.x fa5, a0
; RV64-NEXT:    fmv.w.x fa4, a1
; RV64-NEXT:    fadd.s fa0, fa4, fa5
; RV64-NEXT:    call __truncsfbf2
; RV64-NEXT:    fmv.x.w a0, fa0
; RV64-NEXT:    sh a0, 0(s0)
; RV64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
; RV64-NEXT:    ld s0, 0(sp) # 8-byte Folded Reload
; RV64-NEXT:    addi sp, sp, 16
; RV64-NEXT:    ret
;
; RV32-LABEL: test_fadd:
; RV32:       # %bb.0:
; RV32-NEXT:    addi sp, sp, -16
; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
; RV32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
; RV32-NEXT:    mv s0, a0
; RV32-NEXT:    lhu a0, 0(a1)
; RV32-NEXT:    lhu a1, 0(s0)
; RV32-NEXT:    slli a0, a0, 16
; RV32-NEXT:    slli a1, a1, 16
; RV32-NEXT:    fmv.w.x fa5, a0
; RV32-NEXT:    fmv.w.x fa4, a1
; RV32-NEXT:    fadd.s fa0, fa4, fa5
; RV32-NEXT:    call __truncsfbf2
; RV32-NEXT:    fmv.x.w a0, fa0
; RV32-NEXT:    sh a0, 0(s0)
; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
; RV32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
; RV32-NEXT:    addi sp, sp, 16
; RV32-NEXT:    ret
  %a = load bfloat, ptr %p
  %b = load bfloat, ptr %q
  %r = fadd bfloat %a, %b
  store bfloat %r, ptr %p
  ret void
}