source: icGREP/icgrep-devel/llvm-3.6.1.src/test/CodeGen/R600/si-annotate-cf.ll @ 4664

Last change on this file since 4664 was 4664, checked in by cameron, 4 years ago

Upgrade LLVM to 3.6.1

File size: 1.5 KB
Line 
1; RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI --check-prefix=FUNC %s
2; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck --check-prefix=SI --check-prefix=FUNC %s
3
4; FUNC-LABEL: {{^}}break_inserted_outside_of_loop:
5
6; SI: [[LOOP_LABEL:[A-Z0-9]+]]:
7; Lowered break instructin:
8; SI: s_or_b64
9; Lowered Loop instruction:
10; SI: s_andn2_b64
11; s_cbranch_execnz [[LOOP_LABEL]]
12; SI: s_endpgm
13define void @break_inserted_outside_of_loop(i32 addrspace(1)* %out, i32 %a, i32 %b) {
14main_body:
15  %0 = and i32 %a, %b
16  %1 = trunc i32 %0 to i1
17  br label %ENDIF
18
19ENDLOOP:
20  store i32 0, i32 addrspace(1)* %out
21  ret void
22
23ENDIF:
24  br i1 %1, label %ENDLOOP, label %ENDIF
25}
26
27
28; FUNC-LABEL: {{^}}phi_cond_outside_loop:
29; FIXME: This could be folded into the s_or_b64 instruction
30; SI: s_mov_b64 [[ZERO:s\[[0-9]+:[0-9]+\]]], 0
31; SI: [[LOOP_LABEL:[A-Z0-9]+]]
32; SI: v_cmp_ne_i32_e64 [[COND:s\[[0-9]+:[0-9]+\]]], v{{[0-9]+}}, 0
33
34; SI_IF_BREAK instruction:
35; SI: s_or_b64 [[BREAK:s\[[0-9]+:[0-9]+\]]], [[COND]], [[ZERO]]
36
37; SI_LOOP instruction:
38; SI: s_andn2_b64 exec, exec, [[BREAK]]
39; SI: s_cbranch_execnz [[LOOP_LABEL]]
40; SI: s_endpgm
41
42define void @phi_cond_outside_loop(i32 %a, i32 %b) {
43entry:
44  %0 = icmp eq i32 %a , 0
45  br i1 %0, label %if, label %else
46
47if:
48  br label %endif
49
50else:
51  %1 = icmp eq i32 %b, 0
52  br label %endif
53
54endif:
55  %2 = phi i1 [0, %if], [%1, %else]
56  br label %loop
57
58loop:
59  br i1 %2, label %exit, label %loop
60
61exit:
62  ret void
63}
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