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comparison test/CodeGen/AMDGPU/si-annotate-cf.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents
children 1172e4bd9c6f
comparison
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84:f3e34b893a5f 95:afa8332a0e37
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
13 define void @break_inserted_outside_of_loop(i32 addrspace(1)* %out, i32 %a, i32 %b) {
14 main_body:
15 %0 = and i32 %a, %b
16 %1 = trunc i32 %0 to i1
17 br label %ENDIF
18
19 ENDLOOP:
20 store i32 0, i32 addrspace(1)* %out
21 ret void
22
23 ENDIF:
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_e32 vcc, 0, v{{[0-9]+}}
33
34 ; SI_IF_BREAK instruction:
35 ; SI: s_or_b64 [[BREAK:s\[[0-9]+:[0-9]+\]]], vcc, [[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
42 define void @phi_cond_outside_loop(i32 %a, i32 %b) {
43 entry:
44 %0 = icmp eq i32 %a , 0
45 br i1 %0, label %if, label %else
46
47 if:
48 br label %endif
49
50 else:
51 %1 = icmp eq i32 %b, 0
52 br label %endif
53
54 endif:
55 %2 = phi i1 [0, %if], [%1, %else]
56 br label %loop
57
58 loop:
59 br i1 %2, label %exit, label %loop
60
61 exit:
62 ret void
63 }