xref: /llvm-project/llvm/test/Transforms/LoopDistribute/diagnostics-with-hotness.ll (revision 344930316f4c901673461dcf44ad57ae6ade1015) 
1; RUN: opt -passes=loop-simplify,loop-distribute -enable-loop-distribute -S -pass-remarks-missed=loop-distribute \
2; RUN:     -pass-remarks-analysis=loop-distribute \
3; RUN:     -pass-remarks-with-hotness < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS
4; RUN: opt -passes=loop-simplify,loop-distribute -enable-loop-distribute -S -pass-remarks-missed=loop-distribute \
5; RUN:     -pass-remarks-analysis=loop-distribute \
6; RUN:                                < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS
7
8; RUN: opt -passes='loop-simplify,require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \
9; RUN:     -pass-remarks-analysis=loop-distribute \
10; RUN:     -pass-remarks-with-hotness < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS
11; RUN: opt -passes='loop-simplify,require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \
12; RUN:     -pass-remarks-analysis=loop-distribute \
13; RUN:                                < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS
14
15; This is the input program:
16;
17;     1	void forced (char *A, char *B, char *C, int N) {
18;     2	#pragma clang loop distribute(enable)
19;     3	  for(int i = 0; i < N; i++) {
20;     4	    A[i] = B[i] * C[i];
21;     5	  }
22;     6	}
23
24; HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: use -Rpass-analysis=loop-distribute for more info (hotness: 300)
25; HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: memory operations are safe for vectorization (hotness: 300)
26; NO_HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: use -Rpass-analysis=loop-distribute for more info{{$}}
27; NO_HOTNESS: remark: /tmp/t.c:3:3: loop not distributed: memory operations are safe for vectorization{{$}}
28
29define void @forced(ptr %A, ptr %B, ptr %C, i32 %N) !dbg !7 !prof !22 {
30entry:
31  %cmp12 = icmp sgt i32 %N, 0, !dbg !9
32  br i1 %cmp12, label %ph, label %for.cond.cleanup, !dbg !10, !prof !23
33
34ph:
35  br label %for.body
36
37for.body:
38  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %ph ]
39  %arrayidx = getelementptr inbounds i8, ptr %B, i64 %indvars.iv, !dbg !12
40  %0 = load i8, ptr %arrayidx, align 1, !dbg !12, !tbaa !13
41  %arrayidx2 = getelementptr inbounds i8, ptr %C, i64 %indvars.iv, !dbg !16
42  %1 = load i8, ptr %arrayidx2, align 1, !dbg !16, !tbaa !13
43  %mul = mul i8 %1, %0, !dbg !17
44  %arrayidx6 = getelementptr inbounds i8, ptr %A, i64 %indvars.iv, !dbg !18
45  store i8 %mul, ptr %arrayidx6, align 1, !dbg !19, !tbaa !13
46  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10
47  %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !10
48  %exitcond = icmp eq i32 %lftr.wideiv, %N, !dbg !10
49  br i1 %exitcond, label %for.cond.cleanup, label %for.body, !dbg !10, !llvm.loop !20, !prof !24
50
51for.cond.cleanup:
52  ret void, !dbg !11
53}
54
55!llvm.dbg.cu = !{!0}
56!llvm.module.flags = !{!3, !4}
57
58!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 267633) (llvm/trunk 267675)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
59!1 = !DIFile(filename: "/tmp/t.c", directory: "/tmp")
60!2 = !{}
61!3 = !{i32 2, !"Dwarf Version", i32 2}
62!4 = !{i32 2, !"Debug Info Version", i32 3}
63!7 = distinct !DISubprogram(name: "forced", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
64!8 = !DISubroutineType(types: !2)
65!9 = !DILocation(line: 3, column: 20, scope: !7)
66!10 = !DILocation(line: 3, column: 3, scope: !7)
67!11 = !DILocation(line: 6, column: 1, scope: !7)
68!12 = !DILocation(line: 4, column: 12, scope: !7)
69!13 = !{!14, !14, i64 0}
70!14 = !{!"omnipotent char", !15, i64 0}
71!15 = !{!"Simple C/C++ TBAA"}
72!16 = !DILocation(line: 4, column: 19, scope: !7)
73!17 = !DILocation(line: 4, column: 17, scope: !7)
74!18 = !DILocation(line: 4, column: 5, scope: !7)
75!19 = !DILocation(line: 4, column: 10, scope: !7)
76!20 = distinct !{!20, !21}
77!21 = !{!"llvm.loop.distribute.enable", i1 true}
78!22 = !{!"function_entry_count", i64 3}
79!23 = !{!"branch_weights", i32 2000, i32 1}
80!24 = !{!"branch_weights", i32 1, i32 99}
81