1; REQUIRES: asserts
2; XFAIL: *
3; RUN: llc -O0 -verify-machineinstrs -asm-verbose=0 -march=amdgcn -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=COMMON %s
4; RUN: llc -O0 -verify-machineinstrs -asm-verbose=0 -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI -check-prefix=COMMON %s
5; RUN: llc -O0 -verify-machineinstrs -asm-verbose=0 -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=COMMON %s
6
7; SI hits an assertion at -O0, evergreen hits a not implemented unreachable.
8
9; COMMON-LABEL: {{^}}branch_true:
10define void @branch_true(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
11entry:
12  br i1 true, label %for.end, label %for.body.lr.ph
13
14for.body.lr.ph:                                   ; preds = %entry
15  %add.ptr.sum = shl i32 %main_stride, 1
16  %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
17  %add.ptr4.sum = shl i32 %main_stride, 2
18  br label %for.body
19
20for.body:                                         ; preds = %for.body, %for.body.lr.ph
21  %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
22  %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
23  %1 = load i32 addrspace(1)* %0, align 4
24  %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
25  %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
26  %3 = load i32 addrspace(1)* %2, align 4
27  %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
28  %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
29  %5 = load i32 addrspace(1)* %4, align 4
30  %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
31  %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
32  %7 = load i32 addrspace(1)* %6, align 4
33  %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
34  %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
35  %9 = load i32 addrspace(1)* %8, align 4
36  %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
37  br i1 undef, label %for.end, label %for.body
38
39for.end:                                          ; preds = %for.body, %entry
40  ret void
41}
42
43; COMMON-LABEL: {{^}}branch_false:
44; SI: .text
45; SI-NEXT: s_endpgm
46define void @branch_false(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
47entry:
48  br i1 false, label %for.end, label %for.body.lr.ph
49
50for.body.lr.ph:                                   ; preds = %entry
51  %add.ptr.sum = shl i32 %main_stride, 1
52  %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
53  %add.ptr4.sum = shl i32 %main_stride, 2
54  br label %for.body
55
56for.body:                                         ; preds = %for.body, %for.body.lr.ph
57  %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
58  %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
59  %1 = load i32 addrspace(1)* %0, align 4
60  %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
61  %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
62  %3 = load i32 addrspace(1)* %2, align 4
63  %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
64  %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
65  %5 = load i32 addrspace(1)* %4, align 4
66  %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
67  %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
68  %7 = load i32 addrspace(1)* %6, align 4
69  %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
70  %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
71  %9 = load i32 addrspace(1)* %8, align 4
72  %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
73  br i1 undef, label %for.end, label %for.body
74
75for.end:                                          ; preds = %for.body, %entry
76  ret void
77}
78
79; COMMON-LABEL: {{^}}branch_undef:
80; SI: .text
81; SI-NEXT: s_endpgm
82define void @branch_undef(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
83entry:
84  br i1 undef, label %for.end, label %for.body.lr.ph
85
86for.body.lr.ph:                                   ; preds = %entry
87  %add.ptr.sum = shl i32 %main_stride, 1
88  %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
89  %add.ptr4.sum = shl i32 %main_stride, 2
90  br label %for.body
91
92for.body:                                         ; preds = %for.body, %for.body.lr.ph
93  %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
94  %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
95  %1 = load i32 addrspace(1)* %0, align 4
96  %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
97  %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
98  %3 = load i32 addrspace(1)* %2, align 4
99  %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
100  %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
101  %5 = load i32 addrspace(1)* %4, align 4
102  %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
103  %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
104  %7 = load i32 addrspace(1)* %6, align 4
105  %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
106  %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
107  %9 = load i32 addrspace(1)* %8, align 4
108  %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
109  br i1 undef, label %for.end, label %for.body
110
111for.end:                                          ; preds = %for.body, %entry
112  ret void
113}
114
115attributes #0 = { nounwind }
116