1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -instcombine -S | FileCheck %s
3
4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
5
6define i16 @test1(i16 %a) {
7; CHECK-LABEL: @test1(
8; CHECK-NEXT:    [[C:%.*]] = lshr i16 [[A:%.*]], 8
9; CHECK-NEXT:    [[D:%.*]] = mul i16 [[A]], 5
10; CHECK-NEXT:    [[E:%.*]] = or i16 [[C]], [[D]]
11; CHECK-NEXT:    ret i16 [[E]]
12;
13  %b = zext i16 %a to i32    ; <i32> [#uses=2]
14  %c = lshr i32 %b, 8        ; <i32> [#uses=1]
15  %d = mul i32 %b, 5         ; <i32> [#uses=1]
16  %e = or i32 %c, %d         ; <i32> [#uses=1]
17  %f = trunc i32 %e to i16   ; <i16> [#uses=1]
18  ret i16 %f
19}
20
21define <2 x i16> @test1_vec(<2 x i16> %a) {
22; CHECK-LABEL: @test1_vec(
23; CHECK-NEXT:    [[C:%.*]] = lshr <2 x i16> [[A:%.*]], <i16 8, i16 8>
24; CHECK-NEXT:    [[D:%.*]] = mul <2 x i16> [[A]], <i16 5, i16 5>
25; CHECK-NEXT:    [[E:%.*]] = or <2 x i16> [[C]], [[D]]
26; CHECK-NEXT:    ret <2 x i16> [[E]]
27;
28  %b = zext <2 x i16> %a to <2 x i32>
29  %c = lshr <2 x i32> %b, <i32 8, i32 8>
30  %d = mul <2 x i32> %b, <i32 5, i32 5>
31  %e = or <2 x i32> %c, %d
32  %f = trunc <2 x i32> %e to <2 x i16>
33  ret <2 x i16> %f
34}
35
36define <2 x i16> @test1_vec_nonuniform(<2 x i16> %a) {
37; CHECK-LABEL: @test1_vec_nonuniform(
38; CHECK-NEXT:    [[C:%.*]] = lshr <2 x i16> [[A:%.*]], <i16 8, i16 9>
39; CHECK-NEXT:    [[D:%.*]] = mul <2 x i16> [[A]], <i16 5, i16 6>
40; CHECK-NEXT:    [[E:%.*]] = or <2 x i16> [[C]], [[D]]
41; CHECK-NEXT:    ret <2 x i16> [[E]]
42;
43  %b = zext <2 x i16> %a to <2 x i32>
44  %c = lshr <2 x i32> %b, <i32 8, i32 9>
45  %d = mul <2 x i32> %b, <i32 5, i32 6>
46  %e = or <2 x i32> %c, %d
47  %f = trunc <2 x i32> %e to <2 x i16>
48  ret <2 x i16> %f
49}
50
51define <2 x i16> @test1_vec_undef(<2 x i16> %a) {
52; CHECK-LABEL: @test1_vec_undef(
53; CHECK-NEXT:    [[B:%.*]] = zext <2 x i16> [[A:%.*]] to <2 x i32>
54; CHECK-NEXT:    [[C:%.*]] = lshr <2 x i32> [[B]], <i32 8, i32 undef>
55; CHECK-NEXT:    [[D:%.*]] = mul <2 x i32> [[B]], <i32 5, i32 undef>
56; CHECK-NEXT:    [[E:%.*]] = or <2 x i32> [[C]], [[D]]
57; CHECK-NEXT:    [[F:%.*]] = trunc <2 x i32> [[E]] to <2 x i16>
58; CHECK-NEXT:    ret <2 x i16> [[F]]
59;
60  %b = zext <2 x i16> %a to <2 x i32>
61  %c = lshr <2 x i32> %b, <i32 8, i32 undef>
62  %d = mul <2 x i32> %b, <i32 5, i32 undef>
63  %e = or <2 x i32> %c, %d
64  %f = trunc <2 x i32> %e to <2 x i16>
65  ret <2 x i16> %f
66}
67