; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --version 6
; RUN: opt -S -mtriple=x86_64-- -passes='require<libcall-lowering-info>,expand-ir-insts' -expand-fp-convert-bits=0 < %s | FileCheck %s

; Test small bit widths that can be verified by alive2.

define half @uitofp_i32_f16(i32 %x) {
; CHECK-LABEL: define half @uitofp_i32_f16(
; CHECK-SAME: i32 [[X:%.*]]) {
; CHECK-NEXT:  [[ITOFP_ENTRY:.*]]:
; CHECK-NEXT:    [[TMP8:%.*]] = freeze i32 [[X]]
; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq i32 [[TMP8]], 0
; CHECK-NEXT:    br i1 [[TMP0]], label %[[ITOFP_RETURN:.*]], label %[[ITOFP_IF_END:.*]], !prof [[PROF0:![0-9]+]]
; CHECK:       [[ITOFP_IF_END]]:
; CHECK-NEXT:    [[TMP1:%.*]] = ashr i32 [[TMP8]], 31
; CHECK-NEXT:    [[TMP2:%.*]] = xor i32 [[TMP1]], [[TMP8]]
; CHECK-NEXT:    [[TMP3:%.*]] = sub i32 [[TMP2]], [[TMP1]]
; CHECK-NEXT:    [[TMP4:%.*]] = call i32 @llvm.ctlz.i32(i32 [[TMP8]], i1 true)
; CHECK-NEXT:    [[TMP5:%.*]] = sub i32 32, [[TMP4]]
; CHECK-NEXT:    [[TMP6:%.*]] = sub i32 31, [[TMP4]]
; CHECK-NEXT:    [[TMP7:%.*]] = icmp sgt i32 [[TMP5]], 24
; CHECK-NEXT:    br i1 [[TMP7]], label %[[ITOFP_IF_THEN4:.*]], label %[[ITOFP_IF_ELSE:.*]], !prof [[PROF1:![0-9]+]]
; CHECK:       [[ITOFP_IF_THEN4]]:
; CHECK-NEXT:    switch i32 [[TMP5]], label %[[ITOFP_SW_DEFAULT:.*]] [
; CHECK-NEXT:      i32 25, label %[[ITOFP_SW_BB:.*]]
; CHECK-NEXT:      i32 26, label %[[ITOFP_SW_EPILOG:.*]]
; CHECK-NEXT:    ], !prof [[PROF2:![0-9]+]]
; CHECK:       [[ITOFP_SW_BB]]:
; CHECK-NEXT:    [[TMP41:%.*]] = shl i32 [[TMP8]], 1
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_DEFAULT]]:
; CHECK-NEXT:    [[TMP9:%.*]] = sub i32 6, [[TMP4]]
; CHECK-NEXT:    [[TMP10:%.*]] = lshr i32 [[TMP8]], [[TMP9]]
; CHECK-NEXT:    [[TMP11:%.*]] = add i32 [[TMP4]], 26
; CHECK-NEXT:    [[TMP12:%.*]] = lshr i32 -1, [[TMP11]]
; CHECK-NEXT:    [[TMP13:%.*]] = and i32 [[TMP12]], [[TMP8]]
; CHECK-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0
; CHECK-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32
; CHECK-NEXT:    [[TMP16:%.*]] = or i32 [[TMP10]], [[TMP15]]
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_EPILOG]]:
; CHECK-NEXT:    [[TMP17:%.*]] = phi i32 [ [[TMP16]], %[[ITOFP_SW_DEFAULT]] ], [ [[TMP8]], %[[ITOFP_IF_THEN4]] ], [ [[TMP41]], %[[ITOFP_SW_BB]] ]
; CHECK-NEXT:    [[TMP18:%.*]] = lshr i32 [[TMP17]], 2
; CHECK-NEXT:    [[TMP19:%.*]] = and i32 [[TMP18]], 1
; CHECK-NEXT:    [[TMP20:%.*]] = or i32 [[TMP17]], [[TMP19]]
; CHECK-NEXT:    [[TMP21:%.*]] = add i32 [[TMP20]], 1
; CHECK-NEXT:    [[TMP22:%.*]] = lshr i32 [[TMP21]], 2
; CHECK-NEXT:    [[A3:%.*]] = and i32 [[TMP21]], 67108864
; CHECK-NEXT:    [[TMP23:%.*]] = icmp eq i32 [[A3]], 0
; CHECK-NEXT:    [[TMP24:%.*]] = lshr i32 [[TMP22]], 32
; CHECK-NEXT:    br i1 [[TMP23]], label %[[ITOFP_IF_END26:.*]], label %[[ITOFP_IF_THEN20:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN20]]:
; CHECK-NEXT:    [[TMP25:%.*]] = lshr i32 [[TMP21]], 3
; CHECK-NEXT:    [[TMP26:%.*]] = lshr i32 [[TMP25]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_ELSE]]:
; CHECK-NEXT:    [[TMP27:%.*]] = add i32 [[TMP4]], -8
; CHECK-NEXT:    [[TMP28:%.*]] = shl i32 [[TMP8]], [[TMP27]]
; CHECK-NEXT:    [[TMP29:%.*]] = lshr i32 [[TMP28]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_END26]]:
; CHECK-NEXT:    [[TMP30:%.*]] = phi i32 [ [[TMP25]], %[[ITOFP_IF_THEN20]] ], [ [[TMP22]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP28]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP31:%.*]] = phi i32 [ [[TMP5]], %[[ITOFP_IF_THEN20]] ], [ [[TMP6]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP6]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP32:%.*]] = and i32 [[TMP1]], -2147483648
; CHECK-NEXT:    [[TMP33:%.*]] = shl i32 [[TMP31]], 23
; CHECK-NEXT:    [[TMP34:%.*]] = add i32 [[TMP33]], 1065353216
; CHECK-NEXT:    [[TMP35:%.*]] = and i32 [[TMP30]], 8388607
; CHECK-NEXT:    [[TMP36:%.*]] = or i32 [[TMP35]], [[TMP32]]
; CHECK-NEXT:    [[TMP37:%.*]] = or i32 [[TMP35]], [[TMP34]]
; CHECK-NEXT:    [[TMP38:%.*]] = bitcast i32 [[TMP37]] to float
; CHECK-NEXT:    [[TMP39:%.*]] = fptrunc float [[TMP38]] to half
; CHECK-NEXT:    br label %[[ITOFP_RETURN]]
; CHECK:       [[ITOFP_RETURN]]:
; CHECK-NEXT:    [[TMP40:%.*]] = phi half [ [[TMP39]], %[[ITOFP_IF_END26]] ], [ 0.000000e+00, %[[ITOFP_ENTRY]] ]
; CHECK-NEXT:    ret half [[TMP40]]
;
  %res = uitofp i32 %x to half
  ret half %res
}

define half @uitofp_i32_f16_noundef(i32 noundef %x) {
; CHECK-LABEL: define half @uitofp_i32_f16_noundef(
; CHECK-SAME: i32 noundef [[X:%.*]]) {
; CHECK-NEXT:  [[ITOFP_ENTRY:.*]]:
; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq i32 [[X]], 0
; CHECK-NEXT:    br i1 [[TMP0]], label %[[ITOFP_RETURN:.*]], label %[[ITOFP_IF_END:.*]], !prof [[PROF0]]
; CHECK:       [[ITOFP_IF_END]]:
; CHECK-NEXT:    [[TMP1:%.*]] = ashr i32 [[X]], 31
; CHECK-NEXT:    [[TMP2:%.*]] = xor i32 [[TMP1]], [[X]]
; CHECK-NEXT:    [[TMP3:%.*]] = sub i32 [[TMP2]], [[TMP1]]
; CHECK-NEXT:    [[TMP4:%.*]] = call i32 @llvm.ctlz.i32(i32 [[X]], i1 true)
; CHECK-NEXT:    [[TMP5:%.*]] = sub i32 32, [[TMP4]]
; CHECK-NEXT:    [[TMP6:%.*]] = sub i32 31, [[TMP4]]
; CHECK-NEXT:    [[TMP7:%.*]] = icmp sgt i32 [[TMP5]], 24
; CHECK-NEXT:    br i1 [[TMP7]], label %[[ITOFP_IF_THEN4:.*]], label %[[ITOFP_IF_ELSE:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN4]]:
; CHECK-NEXT:    switch i32 [[TMP5]], label %[[ITOFP_SW_DEFAULT:.*]] [
; CHECK-NEXT:      i32 25, label %[[ITOFP_SW_BB:.*]]
; CHECK-NEXT:      i32 26, label %[[ITOFP_SW_EPILOG:.*]]
; CHECK-NEXT:    ], !prof [[PROF2]]
; CHECK:       [[ITOFP_SW_BB]]:
; CHECK-NEXT:    [[TMP8:%.*]] = shl i32 [[X]], 1
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_DEFAULT]]:
; CHECK-NEXT:    [[TMP9:%.*]] = sub i32 6, [[TMP4]]
; CHECK-NEXT:    [[TMP10:%.*]] = lshr i32 [[X]], [[TMP9]]
; CHECK-NEXT:    [[TMP11:%.*]] = add i32 [[TMP4]], 26
; CHECK-NEXT:    [[TMP12:%.*]] = lshr i32 -1, [[TMP11]]
; CHECK-NEXT:    [[TMP13:%.*]] = and i32 [[TMP12]], [[X]]
; CHECK-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0
; CHECK-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32
; CHECK-NEXT:    [[TMP16:%.*]] = or i32 [[TMP10]], [[TMP15]]
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_EPILOG]]:
; CHECK-NEXT:    [[TMP17:%.*]] = phi i32 [ [[TMP16]], %[[ITOFP_SW_DEFAULT]] ], [ [[X]], %[[ITOFP_IF_THEN4]] ], [ [[TMP8]], %[[ITOFP_SW_BB]] ]
; CHECK-NEXT:    [[TMP18:%.*]] = lshr i32 [[TMP17]], 2
; CHECK-NEXT:    [[TMP19:%.*]] = and i32 [[TMP18]], 1
; CHECK-NEXT:    [[TMP20:%.*]] = or i32 [[TMP17]], [[TMP19]]
; CHECK-NEXT:    [[TMP21:%.*]] = add i32 [[TMP20]], 1
; CHECK-NEXT:    [[TMP22:%.*]] = lshr i32 [[TMP21]], 2
; CHECK-NEXT:    [[A3:%.*]] = and i32 [[TMP21]], 67108864
; CHECK-NEXT:    [[TMP23:%.*]] = icmp eq i32 [[A3]], 0
; CHECK-NEXT:    [[TMP24:%.*]] = lshr i32 [[TMP22]], 32
; CHECK-NEXT:    br i1 [[TMP23]], label %[[ITOFP_IF_END26:.*]], label %[[ITOFP_IF_THEN20:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN20]]:
; CHECK-NEXT:    [[TMP25:%.*]] = lshr i32 [[TMP21]], 3
; CHECK-NEXT:    [[TMP26:%.*]] = lshr i32 [[TMP25]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_ELSE]]:
; CHECK-NEXT:    [[TMP27:%.*]] = add i32 [[TMP4]], -8
; CHECK-NEXT:    [[TMP28:%.*]] = shl i32 [[X]], [[TMP27]]
; CHECK-NEXT:    [[TMP29:%.*]] = lshr i32 [[TMP28]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_END26]]:
; CHECK-NEXT:    [[TMP30:%.*]] = phi i32 [ [[TMP25]], %[[ITOFP_IF_THEN20]] ], [ [[TMP22]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP28]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP31:%.*]] = phi i32 [ [[TMP5]], %[[ITOFP_IF_THEN20]] ], [ [[TMP6]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP6]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP32:%.*]] = and i32 [[TMP1]], -2147483648
; CHECK-NEXT:    [[TMP33:%.*]] = shl i32 [[TMP31]], 23
; CHECK-NEXT:    [[TMP34:%.*]] = add i32 [[TMP33]], 1065353216
; CHECK-NEXT:    [[TMP35:%.*]] = and i32 [[TMP30]], 8388607
; CHECK-NEXT:    [[TMP36:%.*]] = or i32 [[TMP35]], [[TMP32]]
; CHECK-NEXT:    [[TMP37:%.*]] = or i32 [[TMP35]], [[TMP34]]
; CHECK-NEXT:    [[TMP38:%.*]] = bitcast i32 [[TMP37]] to float
; CHECK-NEXT:    [[TMP39:%.*]] = fptrunc float [[TMP38]] to half
; CHECK-NEXT:    br label %[[ITOFP_RETURN]]
; CHECK:       [[ITOFP_RETURN]]:
; CHECK-NEXT:    [[TMP40:%.*]] = phi half [ [[TMP39]], %[[ITOFP_IF_END26]] ], [ 0.000000e+00, %[[ITOFP_ENTRY]] ]
; CHECK-NEXT:    ret half [[TMP40]]
;
  %res = uitofp i32 %x to half
  ret half %res
}

define half @uitofp_i16_f16(i16 %x) {
; CHECK-LABEL: define half @uitofp_i16_f16(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:  [[ITOFP_ENTRY:.*]]:
; CHECK-NEXT:    [[TMP42:%.*]] = freeze i16 [[X]]
; CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[TMP42]] to i32
; CHECK-NEXT:    [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 0
; CHECK-NEXT:    br i1 [[TMP1]], label %[[ITOFP_RETURN:.*]], label %[[ITOFP_IF_END:.*]], !prof [[PROF0]]
; CHECK:       [[ITOFP_IF_END]]:
; CHECK-NEXT:    [[TMP2:%.*]] = ashr i32 [[TMP0]], 31
; CHECK-NEXT:    [[TMP3:%.*]] = xor i32 [[TMP2]], [[TMP0]]
; CHECK-NEXT:    [[TMP4:%.*]] = sub i32 [[TMP3]], [[TMP2]]
; CHECK-NEXT:    [[TMP5:%.*]] = call i32 @llvm.ctlz.i32(i32 [[TMP0]], i1 true)
; CHECK-NEXT:    [[TMP6:%.*]] = sub i32 32, [[TMP5]]
; CHECK-NEXT:    [[TMP7:%.*]] = sub i32 31, [[TMP5]]
; CHECK-NEXT:    [[TMP8:%.*]] = icmp sgt i32 [[TMP6]], 24
; CHECK-NEXT:    br i1 [[TMP8]], label %[[ITOFP_IF_THEN4:.*]], label %[[ITOFP_IF_ELSE:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN4]]:
; CHECK-NEXT:    switch i32 [[TMP6]], label %[[ITOFP_SW_DEFAULT:.*]] [
; CHECK-NEXT:      i32 25, label %[[ITOFP_SW_BB:.*]]
; CHECK-NEXT:      i32 26, label %[[ITOFP_SW_EPILOG:.*]]
; CHECK-NEXT:    ], !prof [[PROF2]]
; CHECK:       [[ITOFP_SW_BB]]:
; CHECK-NEXT:    [[TMP9:%.*]] = shl i32 [[TMP0]], 1
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_DEFAULT]]:
; CHECK-NEXT:    [[TMP10:%.*]] = sub i32 6, [[TMP5]]
; CHECK-NEXT:    [[TMP11:%.*]] = lshr i32 [[TMP0]], [[TMP10]]
; CHECK-NEXT:    [[TMP12:%.*]] = add i32 [[TMP5]], 26
; CHECK-NEXT:    [[TMP13:%.*]] = lshr i32 -1, [[TMP12]]
; CHECK-NEXT:    [[TMP14:%.*]] = and i32 [[TMP13]], [[TMP0]]
; CHECK-NEXT:    [[TMP15:%.*]] = icmp ne i32 [[TMP14]], 0
; CHECK-NEXT:    [[TMP16:%.*]] = zext i1 [[TMP15]] to i32
; CHECK-NEXT:    [[TMP17:%.*]] = or i32 [[TMP11]], [[TMP16]]
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_EPILOG]]:
; CHECK-NEXT:    [[TMP18:%.*]] = phi i32 [ [[TMP17]], %[[ITOFP_SW_DEFAULT]] ], [ [[TMP0]], %[[ITOFP_IF_THEN4]] ], [ [[TMP9]], %[[ITOFP_SW_BB]] ]
; CHECK-NEXT:    [[TMP19:%.*]] = lshr i32 [[TMP18]], 2
; CHECK-NEXT:    [[TMP20:%.*]] = and i32 [[TMP19]], 1
; CHECK-NEXT:    [[TMP21:%.*]] = or i32 [[TMP18]], [[TMP20]]
; CHECK-NEXT:    [[TMP22:%.*]] = add i32 [[TMP21]], 1
; CHECK-NEXT:    [[TMP23:%.*]] = lshr i32 [[TMP22]], 2
; CHECK-NEXT:    [[A3:%.*]] = and i32 [[TMP22]], 67108864
; CHECK-NEXT:    [[TMP24:%.*]] = icmp eq i32 [[A3]], 0
; CHECK-NEXT:    [[TMP25:%.*]] = lshr i32 [[TMP23]], 32
; CHECK-NEXT:    br i1 [[TMP24]], label %[[ITOFP_IF_END26:.*]], label %[[ITOFP_IF_THEN20:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN20]]:
; CHECK-NEXT:    [[TMP26:%.*]] = lshr i32 [[TMP22]], 3
; CHECK-NEXT:    [[TMP27:%.*]] = lshr i32 [[TMP26]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_ELSE]]:
; CHECK-NEXT:    [[TMP28:%.*]] = add i32 [[TMP5]], -8
; CHECK-NEXT:    [[TMP29:%.*]] = shl i32 [[TMP0]], [[TMP28]]
; CHECK-NEXT:    [[TMP30:%.*]] = lshr i32 [[TMP29]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_END26]]:
; CHECK-NEXT:    [[TMP31:%.*]] = phi i32 [ [[TMP26]], %[[ITOFP_IF_THEN20]] ], [ [[TMP23]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP29]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP32:%.*]] = phi i32 [ [[TMP6]], %[[ITOFP_IF_THEN20]] ], [ [[TMP7]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP7]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP33:%.*]] = and i32 [[TMP2]], -2147483648
; CHECK-NEXT:    [[TMP34:%.*]] = shl i32 [[TMP32]], 23
; CHECK-NEXT:    [[TMP35:%.*]] = add i32 [[TMP34]], 1065353216
; CHECK-NEXT:    [[TMP36:%.*]] = and i32 [[TMP31]], 8388607
; CHECK-NEXT:    [[TMP37:%.*]] = or i32 [[TMP36]], [[TMP33]]
; CHECK-NEXT:    [[TMP38:%.*]] = or i32 [[TMP36]], [[TMP35]]
; CHECK-NEXT:    [[TMP39:%.*]] = bitcast i32 [[TMP38]] to float
; CHECK-NEXT:    [[TMP40:%.*]] = fptrunc float [[TMP39]] to half
; CHECK-NEXT:    br label %[[ITOFP_RETURN]]
; CHECK:       [[ITOFP_RETURN]]:
; CHECK-NEXT:    [[TMP41:%.*]] = phi half [ [[TMP40]], %[[ITOFP_IF_END26]] ], [ 0.000000e+00, %[[ITOFP_ENTRY]] ]
; CHECK-NEXT:    ret half [[TMP41]]
;
  %res = uitofp i16 %x to half
  ret half %res
}

define half @sitofp_i32_f16(i32 %x) {
; CHECK-LABEL: define half @sitofp_i32_f16(
; CHECK-SAME: i32 [[X:%.*]]) {
; CHECK-NEXT:  [[ITOFP_ENTRY:.*]]:
; CHECK-NEXT:    [[TMP41:%.*]] = freeze i32 [[X]]
; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq i32 [[TMP41]], 0
; CHECK-NEXT:    br i1 [[TMP0]], label %[[ITOFP_RETURN:.*]], label %[[ITOFP_IF_END:.*]], !prof [[PROF0]]
; CHECK:       [[ITOFP_IF_END]]:
; CHECK-NEXT:    [[TMP1:%.*]] = ashr i32 [[TMP41]], 31
; CHECK-NEXT:    [[TMP2:%.*]] = xor i32 [[TMP1]], [[TMP41]]
; CHECK-NEXT:    [[TMP3:%.*]] = sub i32 [[TMP2]], [[TMP1]]
; CHECK-NEXT:    [[TMP4:%.*]] = call i32 @llvm.ctlz.i32(i32 [[TMP3]], i1 true)
; CHECK-NEXT:    [[TMP5:%.*]] = sub i32 32, [[TMP4]]
; CHECK-NEXT:    [[TMP6:%.*]] = sub i32 31, [[TMP4]]
; CHECK-NEXT:    [[TMP7:%.*]] = icmp sgt i32 [[TMP5]], 24
; CHECK-NEXT:    br i1 [[TMP7]], label %[[ITOFP_IF_THEN4:.*]], label %[[ITOFP_IF_ELSE:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN4]]:
; CHECK-NEXT:    switch i32 [[TMP5]], label %[[ITOFP_SW_DEFAULT:.*]] [
; CHECK-NEXT:      i32 25, label %[[ITOFP_SW_BB:.*]]
; CHECK-NEXT:      i32 26, label %[[ITOFP_SW_EPILOG:.*]]
; CHECK-NEXT:    ], !prof [[PROF2]]
; CHECK:       [[ITOFP_SW_BB]]:
; CHECK-NEXT:    [[TMP8:%.*]] = shl i32 [[TMP3]], 1
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_DEFAULT]]:
; CHECK-NEXT:    [[TMP9:%.*]] = sub i32 6, [[TMP4]]
; CHECK-NEXT:    [[TMP10:%.*]] = lshr i32 [[TMP3]], [[TMP9]]
; CHECK-NEXT:    [[TMP11:%.*]] = add i32 [[TMP4]], 26
; CHECK-NEXT:    [[TMP12:%.*]] = lshr i32 -1, [[TMP11]]
; CHECK-NEXT:    [[TMP13:%.*]] = and i32 [[TMP12]], [[TMP3]]
; CHECK-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0
; CHECK-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32
; CHECK-NEXT:    [[TMP16:%.*]] = or i32 [[TMP10]], [[TMP15]]
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_EPILOG]]:
; CHECK-NEXT:    [[TMP17:%.*]] = phi i32 [ [[TMP16]], %[[ITOFP_SW_DEFAULT]] ], [ [[TMP3]], %[[ITOFP_IF_THEN4]] ], [ [[TMP8]], %[[ITOFP_SW_BB]] ]
; CHECK-NEXT:    [[TMP18:%.*]] = lshr i32 [[TMP17]], 2
; CHECK-NEXT:    [[TMP19:%.*]] = and i32 [[TMP18]], 1
; CHECK-NEXT:    [[TMP20:%.*]] = or i32 [[TMP17]], [[TMP19]]
; CHECK-NEXT:    [[TMP21:%.*]] = add i32 [[TMP20]], 1
; CHECK-NEXT:    [[TMP22:%.*]] = ashr i32 [[TMP21]], 2
; CHECK-NEXT:    [[A3:%.*]] = and i32 [[TMP21]], 67108864
; CHECK-NEXT:    [[TMP23:%.*]] = icmp eq i32 [[A3]], 0
; CHECK-NEXT:    [[TMP24:%.*]] = lshr i32 [[TMP22]], 32
; CHECK-NEXT:    br i1 [[TMP23]], label %[[ITOFP_IF_END26:.*]], label %[[ITOFP_IF_THEN20:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN20]]:
; CHECK-NEXT:    [[TMP25:%.*]] = ashr i32 [[TMP21]], 3
; CHECK-NEXT:    [[TMP26:%.*]] = lshr i32 [[TMP25]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_ELSE]]:
; CHECK-NEXT:    [[TMP27:%.*]] = add i32 [[TMP4]], -8
; CHECK-NEXT:    [[TMP28:%.*]] = shl i32 [[TMP3]], [[TMP27]]
; CHECK-NEXT:    [[TMP29:%.*]] = lshr i32 [[TMP28]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_END26]]:
; CHECK-NEXT:    [[TMP30:%.*]] = phi i32 [ [[TMP25]], %[[ITOFP_IF_THEN20]] ], [ [[TMP22]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP28]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP31:%.*]] = phi i32 [ [[TMP5]], %[[ITOFP_IF_THEN20]] ], [ [[TMP6]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP6]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP32:%.*]] = and i32 [[TMP1]], -2147483648
; CHECK-NEXT:    [[TMP33:%.*]] = shl i32 [[TMP31]], 23
; CHECK-NEXT:    [[TMP34:%.*]] = add i32 [[TMP33]], 1065353216
; CHECK-NEXT:    [[TMP35:%.*]] = and i32 [[TMP30]], 8388607
; CHECK-NEXT:    [[TMP36:%.*]] = or i32 [[TMP35]], [[TMP32]]
; CHECK-NEXT:    [[TMP37:%.*]] = or i32 [[TMP36]], [[TMP34]]
; CHECK-NEXT:    [[TMP38:%.*]] = bitcast i32 [[TMP37]] to float
; CHECK-NEXT:    [[TMP39:%.*]] = fptrunc float [[TMP38]] to half
; CHECK-NEXT:    br label %[[ITOFP_RETURN]]
; CHECK:       [[ITOFP_RETURN]]:
; CHECK-NEXT:    [[TMP40:%.*]] = phi half [ [[TMP39]], %[[ITOFP_IF_END26]] ], [ 0.000000e+00, %[[ITOFP_ENTRY]] ]
; CHECK-NEXT:    ret half [[TMP40]]
;
  %res = sitofp i32 %x to half
  ret half %res
}

define half @sitofp_i16_f16(i16 %x) {
; CHECK-LABEL: define half @sitofp_i16_f16(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:  [[ITOFP_ENTRY:.*]]:
; CHECK-NEXT:    [[TMP42:%.*]] = freeze i16 [[X]]
; CHECK-NEXT:    [[TMP1:%.*]] = sext i16 [[TMP42]] to i32
; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq i32 [[TMP1]], 0
; CHECK-NEXT:    br i1 [[TMP0]], label %[[ITOFP_RETURN:.*]], label %[[ITOFP_IF_END:.*]], !prof [[PROF0]]
; CHECK:       [[ITOFP_IF_END]]:
; CHECK-NEXT:    [[TMP2:%.*]] = ashr i32 [[TMP1]], 31
; CHECK-NEXT:    [[TMP3:%.*]] = xor i32 [[TMP2]], [[TMP1]]
; CHECK-NEXT:    [[TMP4:%.*]] = sub i32 [[TMP3]], [[TMP2]]
; CHECK-NEXT:    [[TMP5:%.*]] = call i32 @llvm.ctlz.i32(i32 [[TMP4]], i1 true)
; CHECK-NEXT:    [[TMP6:%.*]] = sub i32 32, [[TMP5]]
; CHECK-NEXT:    [[TMP8:%.*]] = sub i32 31, [[TMP5]]
; CHECK-NEXT:    [[TMP7:%.*]] = icmp sgt i32 [[TMP6]], 24
; CHECK-NEXT:    br i1 [[TMP7]], label %[[ITOFP_IF_THEN4:.*]], label %[[ITOFP_IF_ELSE:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN4]]:
; CHECK-NEXT:    switch i32 [[TMP6]], label %[[ITOFP_SW_DEFAULT:.*]] [
; CHECK-NEXT:      i32 25, label %[[ITOFP_SW_BB:.*]]
; CHECK-NEXT:      i32 26, label %[[ITOFP_SW_EPILOG:.*]]
; CHECK-NEXT:    ], !prof [[PROF2]]
; CHECK:       [[ITOFP_SW_BB]]:
; CHECK-NEXT:    [[TMP9:%.*]] = shl i32 [[TMP4]], 1
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_DEFAULT]]:
; CHECK-NEXT:    [[TMP10:%.*]] = sub i32 6, [[TMP5]]
; CHECK-NEXT:    [[TMP11:%.*]] = lshr i32 [[TMP4]], [[TMP10]]
; CHECK-NEXT:    [[TMP12:%.*]] = add i32 [[TMP5]], 26
; CHECK-NEXT:    [[TMP13:%.*]] = lshr i32 -1, [[TMP12]]
; CHECK-NEXT:    [[TMP14:%.*]] = and i32 [[TMP13]], [[TMP4]]
; CHECK-NEXT:    [[TMP15:%.*]] = icmp ne i32 [[TMP14]], 0
; CHECK-NEXT:    [[TMP16:%.*]] = zext i1 [[TMP15]] to i32
; CHECK-NEXT:    [[TMP17:%.*]] = or i32 [[TMP11]], [[TMP16]]
; CHECK-NEXT:    br label %[[ITOFP_SW_EPILOG]]
; CHECK:       [[ITOFP_SW_EPILOG]]:
; CHECK-NEXT:    [[TMP18:%.*]] = phi i32 [ [[TMP17]], %[[ITOFP_SW_DEFAULT]] ], [ [[TMP4]], %[[ITOFP_IF_THEN4]] ], [ [[TMP9]], %[[ITOFP_SW_BB]] ]
; CHECK-NEXT:    [[TMP19:%.*]] = lshr i32 [[TMP18]], 2
; CHECK-NEXT:    [[TMP20:%.*]] = and i32 [[TMP19]], 1
; CHECK-NEXT:    [[TMP21:%.*]] = or i32 [[TMP18]], [[TMP20]]
; CHECK-NEXT:    [[TMP22:%.*]] = add i32 [[TMP21]], 1
; CHECK-NEXT:    [[TMP24:%.*]] = ashr i32 [[TMP22]], 2
; CHECK-NEXT:    [[A3:%.*]] = and i32 [[TMP22]], 67108864
; CHECK-NEXT:    [[TMP23:%.*]] = icmp eq i32 [[A3]], 0
; CHECK-NEXT:    [[TMP25:%.*]] = lshr i32 [[TMP24]], 32
; CHECK-NEXT:    br i1 [[TMP23]], label %[[ITOFP_IF_END26:.*]], label %[[ITOFP_IF_THEN20:.*]], !prof [[PROF1]]
; CHECK:       [[ITOFP_IF_THEN20]]:
; CHECK-NEXT:    [[TMP26:%.*]] = ashr i32 [[TMP22]], 3
; CHECK-NEXT:    [[TMP27:%.*]] = lshr i32 [[TMP26]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_ELSE]]:
; CHECK-NEXT:    [[TMP28:%.*]] = add i32 [[TMP5]], -8
; CHECK-NEXT:    [[TMP29:%.*]] = shl i32 [[TMP4]], [[TMP28]]
; CHECK-NEXT:    [[TMP30:%.*]] = lshr i32 [[TMP29]], 32
; CHECK-NEXT:    br label %[[ITOFP_IF_END26]]
; CHECK:       [[ITOFP_IF_END26]]:
; CHECK-NEXT:    [[TMP31:%.*]] = phi i32 [ [[TMP26]], %[[ITOFP_IF_THEN20]] ], [ [[TMP24]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP29]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP32:%.*]] = phi i32 [ [[TMP6]], %[[ITOFP_IF_THEN20]] ], [ [[TMP8]], %[[ITOFP_SW_EPILOG]] ], [ [[TMP8]], %[[ITOFP_IF_ELSE]] ]
; CHECK-NEXT:    [[TMP33:%.*]] = and i32 [[TMP2]], -2147483648
; CHECK-NEXT:    [[TMP34:%.*]] = shl i32 [[TMP32]], 23
; CHECK-NEXT:    [[TMP35:%.*]] = add i32 [[TMP34]], 1065353216
; CHECK-NEXT:    [[TMP36:%.*]] = and i32 [[TMP31]], 8388607
; CHECK-NEXT:    [[TMP37:%.*]] = or i32 [[TMP36]], [[TMP33]]
; CHECK-NEXT:    [[TMP41:%.*]] = or i32 [[TMP37]], [[TMP35]]
; CHECK-NEXT:    [[TMP38:%.*]] = bitcast i32 [[TMP41]] to float
; CHECK-NEXT:    [[TMP39:%.*]] = fptrunc float [[TMP38]] to half
; CHECK-NEXT:    br label %[[ITOFP_RETURN]]
; CHECK:       [[ITOFP_RETURN]]:
; CHECK-NEXT:    [[TMP40:%.*]] = phi half [ [[TMP39]], %[[ITOFP_IF_END26]] ], [ 0.000000e+00, %[[ITOFP_ENTRY]] ]
; CHECK-NEXT:    ret half [[TMP40]]
;
  %res = sitofp i16 %x to half
  ret half %res
}
;.
; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
;.
; CHECK: [[PROF0]] = !{!"branch_weights", i32 1, i32 1048575}
; CHECK: [[PROF1]] = !{!"branch_weights", i32 1048575, i32 1}
; CHECK: [[PROF2]] = !{!"branch_weights", i32 1048575, i32 1, i32 1}
;.