1 files changed, 82 insertions, 0 deletions
diff --git a/test/Transforms/LoopDistribute/diagnostics-with-hotness-lazy-BFI.ll b/test/Transforms/LoopDistribute/diagnostics-with-hotness-lazy-BFI.ll
new file mode 100644
index 000000000000..819c002e282e
--- /dev/null
+++ b/test/Transforms/LoopDistribute/diagnostics-with-hotness-lazy-BFI.ll
@@ -0,0 +1,82 @@
+; Check that BFI is not computed when -pass-remarks-with-hotness is off
+
+; RUN: opt -loop-distribute -S -pass-remarks-missed=loop-distribute \
+; RUN:     -debug-only=block-freq -pass-remarks-with-hotness < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS
+; RUN: opt -loop-distribute -S -pass-remarks-missed=loop-distribute \
+; RUN:     -debug-only=block-freq                            < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS
+
+; RUN: opt -passes='require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \
+; RUN:     -debug-only=block-freq -pass-remarks-with-hotness < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS
+; RUN: opt -passes='require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \
+; RUN:     -debug-only=block-freq                            < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS
+
+; REQUIRES: asserts
+
+; HOTNESS: block-frequency: forced
+; NO_HOTNESS-NOT: block-frequency: forced
+
+; This is the input program:
+;
+;     1	void forced (char *A, char *B, char *C, int N) {
+;     2	#pragma clang loop distribute(enable)
+;     3	  for(int i = 0; i < N; i++) {
+;     4	    A[i] = B[i] * C[i];
+;     5	  }
+;     6	}
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.11.0"
+
+
+define void @forced(i8* %A, i8* %B, i8* %C, i32 %N) !dbg !7 !prof !22 {
+entry:
+  %cmp12 = icmp sgt i32 %N, 0, !dbg !9
+  br i1 %cmp12, label %ph, label %for.cond.cleanup, !dbg !10, !prof !23
+
+ph:
+  br label %for.body
+
+for.body:
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %ph ]
+  %arrayidx = getelementptr inbounds i8, i8* %B, i64 %indvars.iv, !dbg !12
+  %0 = load i8, i8* %arrayidx, align 1, !dbg !12, !tbaa !13
+  %arrayidx2 = getelementptr inbounds i8, i8* %C, i64 %indvars.iv, !dbg !16
+  %1 = load i8, i8* %arrayidx2, align 1, !dbg !16, !tbaa !13
+  %mul = mul i8 %1, %0, !dbg !17
+  %arrayidx6 = getelementptr inbounds i8, i8* %A, i64 %indvars.iv, !dbg !18
+  store i8 %mul, i8* %arrayidx6, align 1, !dbg !19, !tbaa !13
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10
+  %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !10
+  %exitcond = icmp eq i32 %lftr.wideiv, %N, !dbg !10
+  br i1 %exitcond, label %for.cond.cleanup, label %for.body, !dbg !10, !llvm.loop !20, !prof !24
+
+for.cond.cleanup:
+  ret void, !dbg !11
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4}
+
+!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)
+!1 = !DIFile(filename: "/tmp/t.c", directory: "/tmp")
+!2 = !{}
+!3 = !{i32 2, !"Dwarf Version", i32 2}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!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, variables: !2)
+!8 = !DISubroutineType(types: !2)
+!9 = !DILocation(line: 3, column: 20, scope: !7)
+!10 = !DILocation(line: 3, column: 3, scope: !7)
+!11 = !DILocation(line: 6, column: 1, scope: !7)
+!12 = !DILocation(line: 4, column: 12, scope: !7)
+!13 = !{!14, !14, i64 0}
+!14 = !{!"omnipotent char", !15, i64 0}
+!15 = !{!"Simple C/C++ TBAA"}
+!16 = !DILocation(line: 4, column: 19, scope: !7)
+!17 = !DILocation(line: 4, column: 17, scope: !7)
+!18 = !DILocation(line: 4, column: 5, scope: !7)
+!19 = !DILocation(line: 4, column: 10, scope: !7)
+!20 = distinct !{!20, !21}
+!21 = !{!"llvm.loop.distribute.enable", i1 true}
+!22 = !{!"function_entry_count", i64 3}
+!23 = !{!"branch_weights", i32 99, i32 1}
+!24 = !{!"branch_weights", i32 1, i32 99}