Codebase Browser
llvm
Go to App

llvm/llvm/test/Transforms/InstCombine/umin_cttz_ctlz.ll 

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

define i8 @umin_cttz_i8_zero_undefined(i8 %X) {
; CHECK-LABEL: define i8 @umin_cttz_i8_zero_undefined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i8 [[X]], 64
; CHECK-NEXT:    [[RET:%.*]] = call range(i8 0, 7) i8 @llvm.cttz.i8(i8 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i8 [[RET]]
;
  %cttz = call i8 @llvm.cttz.i8(i8 %X, i1 true)
  %ret = call i8 @llvm.umin.i8(i8 %cttz, i8 6)
  ret i8 %ret
}

define i8 @umin_cttz_i8_zero_defined(i8 %X) {
; CHECK-LABEL: define i8 @umin_cttz_i8_zero_defined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i8 [[X]], 64
; CHECK-NEXT:    [[RET:%.*]] = call range(i8 0, 7) i8 @llvm.cttz.i8(i8 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i8 [[RET]]
;
  %cttz = call i8 @llvm.cttz.i8(i8 %X, i1 false)
  %ret = call i8 @llvm.umin.i8(i8 %cttz, i8 6)
  ret i8 %ret
}

define i8 @umin_cttz_i8_commuted_zero_undefined(i8 %X) {
; CHECK-LABEL: define i8 @umin_cttz_i8_commuted_zero_undefined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i8 [[X]], 64
; CHECK-NEXT:    [[RET:%.*]] = call range(i8 0, 7) i8 @llvm.cttz.i8(i8 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i8 [[RET]]
;
  %cttz = call i8 @llvm.cttz.i8(i8 %X, i1 true)
  %ret = call i8 @llvm.umin.i8(i8 6, i8 %cttz)
  ret i8 %ret
}

define i8 @umin_cttz_i8_negative_ge_bitwidth_zero_undefined(i8 %X) {
; CHECK-LABEL: define i8 @umin_cttz_i8_negative_ge_bitwidth_zero_undefined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[CTTZ:%.*]] = call range(i8 0, 9) i8 @llvm.cttz.i8(i8 [[X]], i1 true)
; CHECK-NEXT:    ret i8 [[CTTZ]]
;
  %cttz = call i8 @llvm.cttz.i8(i8 %X, i1 true)
  %ret = call i8 @llvm.umin.i8(i8 %cttz, i8 10)
  ret i8 %ret
}

define i16 @umin_cttz_i16_zero_undefined(i16 %X) {
; CHECK-LABEL: define i16 @umin_cttz_i16_zero_undefined(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i16 [[X]], 64
; CHECK-NEXT:    [[RET:%.*]] = call range(i16 0, 7) i16 @llvm.cttz.i16(i16 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i16 [[RET]]
;
  %cttz = call i16 @llvm.cttz.i16(i16 %X, i1 true)
  %ret = call i16 @llvm.umin.i16(i16 %cttz, i16 6)
  ret i16 %ret
}

define i32 @umin_cttz_i32_zero_undefined(i32 %X) {
; CHECK-LABEL: define i32 @umin_cttz_i32_zero_undefined(
; CHECK-SAME: i32 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i32 [[X]], 64
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 7) i32 @llvm.cttz.i32(i32 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i32 [[RET]]
;
  %cttz = call i32 @llvm.cttz.i32(i32 %X, i1 true)
  %ret = call i32 @llvm.umin.i32(i32 %cttz, i32 6)
  ret i32 %ret
}

define i64 @umin_cttz_i64_zero_undefined(i64 %X) {
; CHECK-LABEL: define i64 @umin_cttz_i64_zero_undefined(
; CHECK-SAME: i64 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i64 [[X]], 64
; CHECK-NEXT:    [[RET:%.*]] = call range(i64 0, 7) i64 @llvm.cttz.i64(i64 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i64 [[RET]]
;
  %cttz = call i64 @llvm.cttz.i64(i64 %X, i1 true)
  %ret = call i64 @llvm.umin.i64(i64 %cttz, i64 6)
  ret i64 %ret
}

define i1 @umin_cttz_i1_zero_undefined(i1 %X) {
; CHECK-LABEL: define i1 @umin_cttz_i1_zero_undefined(
; CHECK-SAME: i1 [[X:%.*]]) {
; CHECK-NEXT:    ret i1 false
;
  %cttz = call i1 @llvm.cttz.i1(i1 %X, i1 true)
  %ret = call i1 @llvm.umin.i1(i1 %cttz, i1 1)
  ret i1 %ret
}

define i1 @umin_cttz_i1_zero_defined(i1 %X) {
; CHECK-LABEL: define i1 @umin_cttz_i1_zero_defined(
; CHECK-SAME: i1 [[X:%.*]]) {
; CHECK-NEXT:    [[CTTZ:%.*]] = xor i1 [[X]], true
; CHECK-NEXT:    ret i1 [[CTTZ]]
;
  %cttz = call i1 @llvm.cttz.i1(i1 %X, i1 false)
  %ret = call i1 @llvm.umin.i1(i1 %cttz, i1 1)
  ret i1 %ret
}

define <2 x i32> @umin_cttz_2xi32_splat_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_cttz_2xi32_splat_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or <2 x i32> [[X]], <i32 64, i32 64>
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 7) <2 x i32> @llvm.cttz.v2i32(<2 x i32> [[TMP1]], i1 true)
; CHECK-NEXT:    ret <2 x i32> [[RET]]
;
  %cttz = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %cttz, <2 x i32> <i32 6, i32 6>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_cttz_2xi32_splat_poison_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_cttz_2xi32_splat_poison_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or <2 x i32> [[X]], <i32 64, i32 poison>
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 7) <2 x i32> @llvm.cttz.v2i32(<2 x i32> [[TMP1]], i1 true)
; CHECK-NEXT:    ret <2 x i32> [[RET]]
;
  %cttz = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %cttz, <2 x i32> <i32 6, i32 poison>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_cttz_2xi32_no_splat_all_lt_bitwidth_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_cttz_2xi32_no_splat_all_lt_bitwidth_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or <2 x i32> [[X]], <i32 64, i32 1>
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.cttz.v2i32(<2 x i32> [[TMP1]], i1 true)
; CHECK-NEXT:    ret <2 x i32> [[RET]]
;
  %cttz = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %cttz, <2 x i32> <i32 6, i32 0>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_cttz_2xi32_negative_no_splat_some_lt_bitwidth_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_cttz_2xi32_negative_no_splat_some_lt_bitwidth_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.cttz.v2i32(<2 x i32> [[X]], i1 true)
; CHECK-NEXT:    [[RET1:%.*]] = call <2 x i32> @llvm.umin.v2i32(<2 x i32> [[RET]], <2 x i32> <i32 6, i32 64>)
; CHECK-NEXT:    ret <2 x i32> [[RET1]]
;
  %cttz = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %cttz, <2 x i32> <i32 6, i32 64>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_cttz_2xi32_negative_no_splat_none_lt_bitwidth_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_cttz_2xi32_negative_no_splat_none_lt_bitwidth_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.cttz.v2i32(<2 x i32> [[X]], i1 true)
; CHECK-NEXT:    [[RET1:%.*]] = call <2 x i32> @llvm.umin.v2i32(<2 x i32> [[RET]], <2 x i32> <i32 32, i32 64>)
; CHECK-NEXT:    ret <2 x i32> [[RET1]]
;
  %cttz = call <2 x i32> @llvm.cttz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %cttz, <2 x i32> <i32 32, i32 64>)
  ret <2 x i32> %ret
}

define i16 @umin_cttz_i16_negative_non_constant(i16 %X, i16 %Y) {
; CHECK-LABEL: define i16 @umin_cttz_i16_negative_non_constant(
; CHECK-SAME: i16 [[X:%.*]], i16 [[Y:%.*]]) {
; CHECK-NEXT:    [[CTTZ:%.*]] = call range(i16 0, 17) i16 @llvm.cttz.i16(i16 [[X]], i1 true)
; CHECK-NEXT:    [[RET:%.*]] = call i16 @llvm.umin.i16(i16 [[CTTZ]], i16 [[Y]])
; CHECK-NEXT:    ret i16 [[RET]]
;
  %cttz = call i16 @llvm.cttz.i16(i16 %X, i1 true)
  %ret = call i16 @llvm.umin.i16(i16 %cttz, i16 %Y)
  ret i16 %ret
}

define i16 @umin_cttz_i16_negative_two_uses(i16 %X) {
; CHECK-LABEL: define i16 @umin_cttz_i16_negative_two_uses(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:    [[CTTZ:%.*]] = call range(i16 0, 17) i16 @llvm.cttz.i16(i16 [[X]], i1 true)
; CHECK-NEXT:    [[OP0:%.*]] = call i16 @llvm.umin.i16(i16 [[CTTZ]], i16 6)
; CHECK-NEXT:    [[RET:%.*]] = add nuw nsw i16 [[CTTZ]], [[OP0]]
; CHECK-NEXT:    ret i16 [[RET]]
;
  %cttz = call i16 @llvm.cttz.i16(i16 %X, i1 true)
  %op0 = call i16 @llvm.umin.i16(i16 %cttz, i16 6)
  %ret = add i16 %cttz, %op0
  ret i16 %ret
}

define i8 @umin_ctlz_i8_zero_undefined(i8 %X) {
; CHECK-LABEL: define i8 @umin_ctlz_i8_zero_undefined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i8 [[X]], 2
; CHECK-NEXT:    [[RET:%.*]] = call range(i8 0, 7) i8 @llvm.ctlz.i8(i8 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i8 [[RET]]
;
  %ctlz = call i8 @llvm.ctlz.i8(i8 %X, i1 true)
  %ret = call i8 @llvm.umin.i8(i8 %ctlz, i8 6)
  ret i8 %ret
}

define i8 @umin_ctlz_i8_zero_defined(i8 %X) {
; CHECK-LABEL: define i8 @umin_ctlz_i8_zero_defined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i8 [[X]], 2
; CHECK-NEXT:    [[RET:%.*]] = call range(i8 0, 7) i8 @llvm.ctlz.i8(i8 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i8 [[RET]]
;
  %ctlz = call i8 @llvm.ctlz.i8(i8 %X, i1 false)
  %ret = call i8 @llvm.umin.i8(i8 %ctlz, i8 6)
  ret i8 %ret
}

define i8 @umin_ctlz_i8_commuted_zero_undefined(i8 %X) {
; CHECK-LABEL: define i8 @umin_ctlz_i8_commuted_zero_undefined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i8 [[X]], 2
; CHECK-NEXT:    [[RET:%.*]] = call range(i8 0, 7) i8 @llvm.ctlz.i8(i8 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i8 [[RET]]
;
  %ctlz = call i8 @llvm.ctlz.i8(i8 %X, i1 true)
  %ret = call i8 @llvm.umin.i8(i8 6, i8 %ctlz)
  ret i8 %ret
}

define i8 @umin_ctlz_i8_negative_ge_bitwidth_zero_undefined(i8 %X) {
; CHECK-LABEL: define i8 @umin_ctlz_i8_negative_ge_bitwidth_zero_undefined(
; CHECK-SAME: i8 [[X:%.*]]) {
; CHECK-NEXT:    [[CTLZ:%.*]] = call range(i8 0, 9) i8 @llvm.ctlz.i8(i8 [[X]], i1 true)
; CHECK-NEXT:    ret i8 [[CTLZ]]
;
  %ctlz = call i8 @llvm.ctlz.i8(i8 %X, i1 true)
  %ret = call i8 @llvm.umin.i8(i8 %ctlz, i8 10)
  ret i8 %ret
}

define i16 @umin_ctlz_i16_zero_undefined(i16 %X) {
; CHECK-LABEL: define i16 @umin_ctlz_i16_zero_undefined(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i16 [[X]], 512
; CHECK-NEXT:    [[RET:%.*]] = call range(i16 0, 7) i16 @llvm.ctlz.i16(i16 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i16 [[RET]]
;
  %ctlz = call i16 @llvm.ctlz.i16(i16 %X, i1 true)
  %ret = call i16 @llvm.umin.i16(i16 %ctlz, i16 6)
  ret i16 %ret
}

define i32 @umin_ctlz_i32_zero_undefined(i32 %X) {
; CHECK-LABEL: define i32 @umin_ctlz_i32_zero_undefined(
; CHECK-SAME: i32 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i32 [[X]], 33554432
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 7) i32 @llvm.ctlz.i32(i32 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i32 [[RET]]
;
  %ctlz = call i32 @llvm.ctlz.i32(i32 %X, i1 true)
  %ret = call i32 @llvm.umin.i32(i32 %ctlz, i32 6)
  ret i32 %ret
}

define i64 @umin_ctlz_i64_zero_undefined(i64 %X) {
; CHECK-LABEL: define i64 @umin_ctlz_i64_zero_undefined(
; CHECK-SAME: i64 [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or i64 [[X]], 144115188075855872
; CHECK-NEXT:    [[RET:%.*]] = call range(i64 0, 7) i64 @llvm.ctlz.i64(i64 [[TMP1]], i1 true)
; CHECK-NEXT:    ret i64 [[RET]]
;
  %ctlz = call i64 @llvm.ctlz.i64(i64 %X, i1 true)
  %ret = call i64 @llvm.umin.i64(i64 %ctlz, i64 6)
  ret i64 %ret
}

define i1 @umin_ctlz_i1_zero_undefined(i1 %X) {
; CHECK-LABEL: define i1 @umin_ctlz_i1_zero_undefined(
; CHECK-SAME: i1 [[X:%.*]]) {
; CHECK-NEXT:    ret i1 false
;
  %ctlz = call i1 @llvm.ctlz.i1(i1 %X, i1 true)
  %ret = call i1 @llvm.umin.i1(i1 %ctlz, i1 1)
  ret i1 %ret
}

define i1 @umin_ctlz_i1_zero_defined(i1 %X) {
; CHECK-LABEL: define i1 @umin_ctlz_i1_zero_defined(
; CHECK-SAME: i1 [[X:%.*]]) {
; CHECK-NEXT:    [[CTLZ:%.*]] = xor i1 [[X]], true
; CHECK-NEXT:    ret i1 [[CTLZ]]
;
  %ctlz = call i1 @llvm.ctlz.i1(i1 %X, i1 false)
  %ret = call i1 @llvm.umin.i1(i1 %ctlz, i1 1)
  ret i1 %ret
}

define <2 x i32> @umin_ctlz_2xi32_splat_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_ctlz_2xi32_splat_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or <2 x i32> [[X]], <i32 33554432, i32 33554432>
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 7) <2 x i32> @llvm.ctlz.v2i32(<2 x i32> [[TMP1]], i1 true)
; CHECK-NEXT:    ret <2 x i32> [[RET]]
;
  %ctlz = call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %ctlz, <2 x i32> <i32 6, i32 6>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_ctlz_2xi32_splat_poison_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_ctlz_2xi32_splat_poison_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or <2 x i32> [[X]], <i32 33554432, i32 poison>
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 7) <2 x i32> @llvm.ctlz.v2i32(<2 x i32> [[TMP1]], i1 true)
; CHECK-NEXT:    ret <2 x i32> [[RET]]
;
  %ctlz = call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %ctlz, <2 x i32> <i32 6, i32 poison>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_ctlz_2xi32_no_splat_all_lt_bitwidth_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_ctlz_2xi32_no_splat_all_lt_bitwidth_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[TMP1:%.*]] = or <2 x i32> [[X]], <i32 33554432, i32 -2147483648>
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.ctlz.v2i32(<2 x i32> [[TMP1]], i1 true)
; CHECK-NEXT:    ret <2 x i32> [[RET]]
;
  %ctlz = call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %ctlz, <2 x i32> <i32 6, i32 0>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_ctlz_2xi32_negative_no_splat_some_lt_bitwidth_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_ctlz_2xi32_negative_no_splat_some_lt_bitwidth_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.ctlz.v2i32(<2 x i32> [[X]], i1 true)
; CHECK-NEXT:    [[RET1:%.*]] = call <2 x i32> @llvm.umin.v2i32(<2 x i32> [[RET]], <2 x i32> <i32 6, i32 64>)
; CHECK-NEXT:    ret <2 x i32> [[RET1]]
;
  %ctlz = call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %ctlz, <2 x i32> <i32 6, i32 64>)
  ret <2 x i32> %ret
}

define <2 x i32> @umin_ctlz_2xi32_negative_no_splat_none_lt_bitwidth_zero_undefined(<2 x i32> %X) {
; CHECK-LABEL: define <2 x i32> @umin_ctlz_2xi32_negative_no_splat_none_lt_bitwidth_zero_undefined(
; CHECK-SAME: <2 x i32> [[X:%.*]]) {
; CHECK-NEXT:    [[RET:%.*]] = call range(i32 0, 33) <2 x i32> @llvm.ctlz.v2i32(<2 x i32> [[X]], i1 true)
; CHECK-NEXT:    [[RET1:%.*]] = call <2 x i32> @llvm.umin.v2i32(<2 x i32> [[RET]], <2 x i32> <i32 32, i32 64>)
; CHECK-NEXT:    ret <2 x i32> [[RET1]]
;
  %ctlz = call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %X, i1 true)
  %ret = call <2 x i32> @llvm.umin.v2i32(<2 x i32> %ctlz, <2 x i32> <i32 32, i32 64>)
  ret <2 x i32> %ret
}

define i16 @umin_ctlz_i16_negative_non_constant(i16 %X, i16 %Y) {
; CHECK-LABEL: define i16 @umin_ctlz_i16_negative_non_constant(
; CHECK-SAME: i16 [[X:%.*]], i16 [[Y:%.*]]) {
; CHECK-NEXT:    [[CTLZ:%.*]] = call range(i16 0, 17) i16 @llvm.ctlz.i16(i16 [[X]], i1 true)
; CHECK-NEXT:    [[RET:%.*]] = call i16 @llvm.umin.i16(i16 [[CTLZ]], i16 [[Y]])
; CHECK-NEXT:    ret i16 [[RET]]
;
  %ctlz = call i16 @llvm.ctlz.i16(i16 %X, i1 true)
  %ret = call i16 @llvm.umin.i16(i16 %ctlz, i16 %Y)
  ret i16 %ret
}

define i16 @umin_ctlz_i16_negative_two_uses(i16 %X) {
; CHECK-LABEL: define i16 @umin_ctlz_i16_negative_two_uses(
; CHECK-SAME: i16 [[X:%.*]]) {
; CHECK-NEXT:    [[CTTZ:%.*]] = call range(i16 0, 17) i16 @llvm.ctlz.i16(i16 [[X]], i1 true)
; CHECK-NEXT:    [[OP0:%.*]] = call i16 @llvm.umin.i16(i16 [[CTTZ]], i16 6)
; CHECK-NEXT:    [[RET:%.*]] = add nuw nsw i16 [[CTTZ]], [[OP0]]
; CHECK-NEXT:    ret i16 [[RET]]
;
  %ctlz = call i16 @llvm.ctlz.i16(i16 %X, i1 true)
  %op0 = call i16 @llvm.umin.i16(i16 %ctlz, i16 6)
  %ret = add i16 %ctlz, %op0
  ret i16 %ret
}