1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
3; PR2165
4
5define <1 x i64> @test1() {
6; CHECK-LABEL: @test1(
7; CHECK-NEXT:    ret <1 x i64> <i64 63>
8;
9  %A = bitcast i64 63 to <1 x i64>
10  ret <1 x i64> %A
11}
12
13; Ensure that a FP source operand isn't propagated to an icmp.
14
15@a = external global i16, align 1
16@b = external global i16, align 1
17
18define i1 @bad_icmp_constexpr_bitcast() {
19; CHECK-LABEL: @bad_icmp_constexpr_bitcast(
20; CHECK-NEXT:    [[FADD:%.*]] = fadd float bitcast (i32 ptrtoint (ptr @b to i32) to float), 2.000000e+00
21; CHECK-NEXT:    [[BITCAST:%.*]] = bitcast float [[FADD]] to i32
22; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 ptrtoint (ptr @a to i32), [[BITCAST]]
23; CHECK-NEXT:    ret i1 [[CMP]]
24;
25  %fadd = fadd float bitcast (i32 ptrtoint (ptr @b to i32) to float), 2.0
26  %bitcast = bitcast float %fadd to i32
27  %cmp = icmp eq i32 ptrtoint (ptr @a to i32), %bitcast
28  ret i1 %cmp
29}
30
31; Ensure that an integer source operand isn't propagated to a fcmp.
32
33@c = external global i16, align 1
34@d = external global i16, align 1
35
36define i1 @bad_fcmp_constexpr_bitcast() {
37; CHECK-LABEL: @bad_fcmp_constexpr_bitcast(
38; CHECK-NEXT:    ret i1 fcmp oeq (float bitcast (i32 ptrtoint (ptr @c to i32) to float), float bitcast (i32 add (i32 ptrtoint (ptr @d to i32), i32 2) to float))
39;
40  %cmp = fcmp oeq float bitcast (i32 ptrtoint (ptr @c to i32) to float), bitcast (i32 add (i32 ptrtoint (ptr @d to i32), i32 2) to float)
41  ret i1 %cmp
42}
43
44; Ensure that an "ordered and equal" fcmp of a ConstantExpr to itself is not folded, since the ConstantExpr may be a NaN.
45
46define i1 @fcmp_constexpr_oeq(float %conv) {
47; CHECK-LABEL: @fcmp_constexpr_oeq(
48; CHECK-NEXT:    ret i1 fcmp oeq (float bitcast (i32 ptrtoint (ptr @a to i32) to float), float bitcast (i32 ptrtoint (ptr @a to i32) to float))
49;
50  %cmp = fcmp oeq float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float)
51  ret i1 %cmp
52}
53
54; Ensure that an "unordered or not equal" fcmp of a ConstantExpr to itself is not folded, since the ConstantExpr may be a NaN.
55
56define i1 @fcmp_constexpr_une(float %conv) {
57; CHECK-LABEL: @fcmp_constexpr_une(
58; CHECK-NEXT:    ret i1 fcmp une (float bitcast (i32 ptrtoint (ptr @a to i32) to float), float bitcast (i32 ptrtoint (ptr @a to i32) to float))
59;
60  %cmp = fcmp une float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float)
61  ret i1 %cmp
62}
63
64define i1 @fcmp_constexpr_ueq(float %conv) {
65; CHECK-LABEL: @fcmp_constexpr_ueq(
66; CHECK-NEXT:    ret i1 true
67;
68  %cmp = fcmp ueq float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float)
69  ret i1 %cmp
70}
71
72define i1 @fcmp_constexpr_one(float %conv) {
73; CHECK-LABEL: @fcmp_constexpr_one(
74; CHECK-NEXT:    ret i1 false
75;
76  %cmp = fcmp one float bitcast (i32 ptrtoint (ptr @a to i32) to float), bitcast (i32 ptrtoint (ptr @a to i32) to float)
77  ret i1 %cmp
78}
79
80%T = type { i8 }
81@G = external global %T
82
83define ptr @bitcast_to_gep() {
84; CHECK-LABEL: @bitcast_to_gep(
85; CHECK-NEXT:    ret ptr @G
86;
87  ret ptr @G
88}
89
90define ptr addrspace(1) @addrspacecast_to_gep() {
91; CHECK-LABEL: @addrspacecast_to_gep(
92; CHECK-NEXT:    ret ptr addrspace(1) addrspacecast (ptr @G to ptr addrspace(1))
93;
94  %p = addrspacecast ptr @G to ptr addrspace(1)
95  ret ptr addrspace(1) %p
96}
97