llvm-project/llvm/test/CodeGen/RISCV/float-br-fcmp.ll

; 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

declare void @abort()
declare void @exit(i32)
declare float @dummy(float)

define void @br_fcmp_false(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_false:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    addi a0, zero, 1
; RV32IF-NEXT:    bnez a0, .LBB0_2
; RV32IF-NEXT:  # %bb.1: # %if.then
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB0_2: # %if.else
; RV32IF-NEXT:    call abort
  %1 = fcmp false float %a, %b
  br i1 %1, label %if.then, label %if.else
if.then:
  ret void
if.else:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_oeq(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_oeq:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    feq.s a0, ft1, ft0
; RV32IF-NEXT:    bnez a0, .LBB1_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB1_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp oeq float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

; TODO: generated code quality for this is very poor due to
; DAGCombiner::visitXOR converting the legal setoeq to setune, which requires
; expansion.
define void @br_fcmp_oeq_alt(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_oeq_alt:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    feq.s a0, ft1, ft0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    beqz a0, .LBB2_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB2_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp oeq float %a, %b
  br i1 %1, label %if.then, label %if.else
if.then:
  tail call void @abort()
  unreachable
if.else:
  ret void
}

define void @br_fcmp_ogt(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_ogt:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    fmv.w.x ft1, a1
; RV32IF-NEXT:    flt.s a0, ft1, ft0
; RV32IF-NEXT:    bnez a0, .LBB3_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB3_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp ogt float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_oge(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_oge:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    fmv.w.x ft1, a1
; RV32IF-NEXT:    fle.s a0, ft1, ft0
; RV32IF-NEXT:    bnez a0, .LBB4_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB4_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp oge float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_olt(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_olt:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    flt.s a0, ft1, ft0
; RV32IF-NEXT:    bnez a0, .LBB5_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB5_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp olt float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_ole(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_ole:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    fle.s a0, ft1, ft0
; RV32IF-NEXT:    bnez a0, .LBB6_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB6_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp ole float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

; TODO: feq.s+sltiu+bne -> feq.s+beq
define void @br_fcmp_one(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_one:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    fmv.w.x ft1, a1
; RV32IF-NEXT:    feq.s a0, ft1, ft1
; RV32IF-NEXT:    feq.s a1, ft0, ft0
; RV32IF-NEXT:    and a0, a1, a0
; RV32IF-NEXT:    feq.s a1, ft0, ft1
; RV32IF-NEXT:    not a1, a1
; RV32IF-NEXT:    seqz a0, a0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    and a0, a1, a0
; RV32IF-NEXT:    bnez a0, .LBB7_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB7_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp one float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_ord(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_ord:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    feq.s a1, ft0, ft0
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    feq.s a0, ft0, ft0
; RV32IF-NEXT:    and a0, a0, a1
; RV32IF-NEXT:    seqz a0, a0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    bnez a0, .LBB8_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB8_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp ord float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_ueq(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_ueq:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    feq.s a0, ft1, ft0
; RV32IF-NEXT:    feq.s a1, ft0, ft0
; RV32IF-NEXT:    feq.s a2, ft1, ft1
; RV32IF-NEXT:    and a1, a2, a1
; RV32IF-NEXT:    seqz a1, a1
; RV32IF-NEXT:    or a0, a0, a1
; RV32IF-NEXT:    bnez a0, .LBB9_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB9_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp ueq float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_ugt(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_ugt:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    fle.s a0, ft1, ft0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    bnez a0, .LBB10_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB10_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp ugt float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_uge(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_uge:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    flt.s a0, ft1, ft0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    bnez a0, .LBB11_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB11_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp uge float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_ult(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_ult:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    fmv.w.x ft1, a1
; RV32IF-NEXT:    fle.s a0, ft1, ft0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    bnez a0, .LBB12_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB12_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp ult float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_ule(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_ule:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    fmv.w.x ft1, a1
; RV32IF-NEXT:    flt.s a0, ft1, ft0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    bnez a0, .LBB13_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB13_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp ule float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_une(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_une:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    fmv.w.x ft1, a0
; RV32IF-NEXT:    feq.s a0, ft1, ft0
; RV32IF-NEXT:    xori a0, a0, 1
; RV32IF-NEXT:    bnez a0, .LBB14_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB14_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp une float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_uno(float %a, float %b) nounwind {
; TODO: sltiu+bne -> beq
; RV32IF-LABEL: br_fcmp_uno:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    fmv.w.x ft0, a1
; RV32IF-NEXT:    feq.s a1, ft0, ft0
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    feq.s a0, ft0, ft0
; RV32IF-NEXT:    and a0, a0, a1
; RV32IF-NEXT:    seqz a0, a0
; RV32IF-NEXT:    bnez a0, .LBB15_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB15_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp uno float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

define void @br_fcmp_true(float %a, float %b) nounwind {
; RV32IF-LABEL: br_fcmp_true:
; RV32IF:       # %bb.0:
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    addi a0, zero, 1
; RV32IF-NEXT:    bnez a0, .LBB16_2
; RV32IF-NEXT:  # %bb.1: # %if.else
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB16_2: # %if.then
; RV32IF-NEXT:    call abort
  %1 = fcmp true float %a, %b
  br i1 %1, label %if.then, label %if.else
if.else:
  ret void
if.then:
  tail call void @abort()
  unreachable
}

; This test exists primarily to trigger RISCVInstrInfo::storeRegToStackSlot
; and RISCVInstrInfo::loadRegFromStackSlot
define i32 @br_fcmp_store_load_stack_slot(float %a, float %b) nounwind {
; TODO: addi %lo(.LCPI17_0) should be merged in to the following flw
; RV32IF-LABEL: br_fcmp_store_load_stack_slot:
; RV32IF:       # %bb.0: # %entry
; RV32IF-NEXT:    addi sp, sp, -16
; RV32IF-NEXT:    sw ra, 12(sp)
; RV32IF-NEXT:    mv a0, zero
; RV32IF-NEXT:    call dummy
; RV32IF-NEXT:    lui a1, %hi(.LCPI17_0)
; RV32IF-NEXT:    addi a1, a1, %lo(.LCPI17_0)
; RV32IF-NEXT:    flw ft1, 0(a1)
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    fsw ft1, 8(sp)
; RV32IF-NEXT:    feq.s a0, ft0, ft1
; RV32IF-NEXT:    beqz a0, .LBB17_3
; RV32IF-NEXT:  # %bb.1: # %if.end
; RV32IF-NEXT:    mv a0, zero
; RV32IF-NEXT:    call dummy
; RV32IF-NEXT:    fmv.w.x ft0, a0
; RV32IF-NEXT:    flw ft1, 8(sp)
; RV32IF-NEXT:    feq.s a0, ft0, ft1
; RV32IF-NEXT:    beqz a0, .LBB17_3
; RV32IF-NEXT:  # %bb.2: # %if.end4
; RV32IF-NEXT:    mv a0, zero
; RV32IF-NEXT:    lw ra, 12(sp)
; RV32IF-NEXT:    addi sp, sp, 16
; RV32IF-NEXT:    ret
; RV32IF-NEXT:  .LBB17_3: # %if.then
; RV32IF-NEXT:    call abort
entry:
  %call = call float @dummy(float 0.000000e+00)
  %cmp = fcmp une float %call, 0.000000e+00
  br i1 %cmp, label %if.then, label %if.end

if.then:
  call void @abort()
  unreachable

if.end:
  %call1 = call float @dummy(float 0.000000e+00)
  %cmp2 = fcmp une float %call1, 0.000000e+00
  br i1 %cmp2, label %if.then3, label %if.end4

if.then3:
  call void @abort()
  unreachable

if.end4:
  ret i32 0
}