1; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -pass-remarks-analysis=asm-printer \
2; RUN:       --debugify-and-strip-all-safe=0 \
3; RUN:       -verify-machineinstrs \
4; RUN:       -pass-remarks-with-hotness=1 -asm-verbose=0 \
5; RUN:       -debug-only=lazy-machine-block-freq,block-freq \
6; RUN:       -debug-pass=Executions 2>&1 | FileCheck %s -check-prefix=HOTNESS
7
8; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -pass-remarks-analysis=asm-printer \
9; RUN:       --debugify-and-strip-all-safe=0 \
10; RUN:       -verify-machineinstrs \
11; RUN:       -pass-remarks-with-hotness=0 -asm-verbose=0 \
12; RUN:       -debug-only=lazy-machine-block-freq,block-freq \
13; RUN:       -debug-pass=Executions 2>&1 | FileCheck %s -check-prefix=NO_HOTNESS
14
15; REQUIRES: asserts
16
17
18; Verify that we don't new populate MachineBFI for passes that already use
19; MBFI, e.g. GreedyRegAlloc.  (This hard-codes the previous pass to the
20; GreedyRegAlloc, please adjust accordingly.)
21
22; HOTNESS:      Executing Pass 'Spill Code Placement Analysis'
23; HOTNESS-NEXT: Executing Pass 'Lazy Machine Block Frequency Analysis'
24; HOTNESS-NEXT: Executing Pass 'Machine Optimization Remark Emitter'
25; HOTNESS-NEXT: MachineBlockFrequencyInfo is available
26; HOTNESS-NEXT: Executing Pass 'Greedy Register Allocator'
27
28
29; Verify that we only populate MachineBFI on behalf of ORE when hotness is
30; requested.  (This hard-codes the previous pass to the Assembly Printer,
31; please adjust accordingly.)
32
33; HOTNESS:      Freeing Pass 'Machine Outliner'
34; HOTNESS-NEXT:  Executing Pass 'Function Pass Manager'
35; HOTNESS-NEXT: Executing Pass 'Verify generated machine code'
36; HOTNESS-NEXT: Freeing Pass 'Verify generated machine code'
37; HOTNESS-NEXT: Executing Pass 'Lazy Machine Block Frequency Analysis'
38; HOTNESS-NEXT: Executing Pass 'Machine Optimization Remark Emitter'
39; HOTNESS-NEXT: Building MachineBlockFrequencyInfo on the fly
40; HOTNESS-NEXT: Building LoopInfo on the fly
41; HOTNESS-NEXT: Building DominatorTree on the fly
42; HOTNESS-NOT: Executing Pass
43; HOTNESS: block-frequency: empty_func
44; HOTNESS-NOT: Executing Pass
45; HOTNESS: Executing Pass 'AArch64 Assembly Printer'
46
47; HOTNESS: arm64-summary-remarks.ll:5:0: 1 instructions in function (hotness: 33)
48
49
50; NO_HOTNESS:      Freeing Pass 'Machine Outliner'
51; NO_HOTNESS-NEXT:  Executing Pass 'Function Pass Manager'
52; NO_HOTNESS-NEXT: Executing Pass 'Verify generated machine code'
53; NO_HOTNESS-NEXT: Freeing Pass 'Verify generated machine code'
54; NO_HOTNESS-NEXT: Executing Pass 'Lazy Machine Block Frequency Analysis'
55; NO_HOTNESS-NEXT: Executing Pass 'Machine Optimization Remark Emitter'
56; NO_HOTNESS-NEXT: Executing Pass 'AArch64 Assembly Printer'
57
58; NO_HOTNESS: arm64-summary-remarks.ll:5:0: 1 instructions in function{{$}}
59
60define void @empty_func() nounwind ssp !dbg !3 !prof !4 {
61  ret void
62}
63
64!llvm.dbg.cu = !{!0}
65!llvm.module.flags = !{!2}
66
67!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1)
68!1 = !DIFile(filename: "arm64-summary-remarks.ll", directory: "")
69!2 = !{i32 2, !"Debug Info Version", i32 3}
70!3 = distinct !DISubprogram(name: "empty_func", scope: !1, file: !1, line: 5, scopeLine: 5, unit: !0)
71!4 = !{!"function_entry_count", i64 33}
72