1 files changed, 82 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SampleProfile/offset.ll b/llvm/test/Transforms/SampleProfile/offset.ll
new file mode 100644
index 00000000000..145763dc9bc
--- /dev/null
+++ b/llvm/test/Transforms/SampleProfile/offset.ll
@@ -0,0 +1,82 @@
+; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/offset.prof | opt -analyze -branch-prob | FileCheck %s
+; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/offset.prof | opt -analyze -branch-prob | FileCheck %s
+
+; Original C++ code for this test case:
+;
+; a.cc:
+; #1
+; #2
+; #3
+; #4
+; #5 int foo(int a) {
+; #6 #include "a.b"
+; #7}
+;
+; a.b:
+; #1 if (a > 0) {
+; #2   return 10;
+; #3 } else {
+; #4   return 20;
+; #5 }
+
+; Function Attrs: nounwind uwtable
+define i32 @_Z3fooi(i32 %a) #0 !dbg !4 {
+entry:
+  %retval = alloca i32, align 4
+  %a.addr = alloca i32, align 4
+  store i32 %a, i32* %a.addr, align 4
+  call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !11, metadata !12), !dbg !13
+  %0 = load i32, i32* %a.addr, align 4, !dbg !14
+  %cmp = icmp sgt i32 %0, 0, !dbg !18
+  br i1 %cmp, label %if.then, label %if.else, !dbg !19
+; CHECK: edge entry -> if.then probability is 0x0167ba82 / 0x80000000 = 1.10%
+; CHECK: edge entry -> if.else probability is 0x7e98457e / 0x80000000 = 98.90% [HOT edge]
+
+if.then:                                          ; preds = %entry
+  store i32 10, i32* %retval, align 4, !dbg !20
+  br label %return, !dbg !20
+
+if.else:                                          ; preds = %entry
+  store i32 20, i32* %retval, align 4, !dbg !22
+  br label %return, !dbg !22
+
+return:                                           ; preds = %if.else, %if.then
+  %1 = load i32, i32* %retval, align 4, !dbg !24
+  ret i32 %1, !dbg !24
+}
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
+
+attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind readnone }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!8, !9}
+!llvm.ident = !{!10}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 250750)", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !2)
+!1 = !DIFile(filename: "a.cc", directory: "/tmp")
+!2 = !{}
+!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !1, file: !1, line: 5, type: !5, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
+!5 = !DISubroutineType(types: !6)
+!6 = !{!7, !7}
+!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!8 = !{i32 2, !"Dwarf Version", i32 4}
+!9 = !{i32 2, !"Debug Info Version", i32 3}
+!10 = !{!"clang version 3.8.0 (trunk 250750)"}
+!11 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 5, type: !7)
+!12 = !DIExpression()
+!13 = !DILocation(line: 5, column: 13, scope: !4)
+!14 = !DILocation(line: 1, column: 5, scope: !15)
+!15 = distinct !DILexicalBlock(scope: !17, file: !16, line: 1, column: 5)
+!16 = !DIFile(filename: "./a.b", directory: "/tmp")
+!17 = !DILexicalBlockFile(scope: !4, file: !16, discriminator: 0)
+!18 = !DILocation(line: 1, column: 7, scope: !15)
+!19 = !DILocation(line: 1, column: 5, scope: !17)
+!20 = !DILocation(line: 2, column: 3, scope: !21)
+!21 = distinct !DILexicalBlock(scope: !15, file: !16, line: 1, column: 12)
+!22 = !DILocation(line: 4, column: 3, scope: !23)
+!23 = distinct !DILexicalBlock(scope: !15, file: !16, line: 3, column: 8)
+!24 = !DILocation(line: 7, column: 1, scope: !25)
+!25 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 0)