1; REQUIRES: x86_64-linux 2; RUN: opt < %s -passes='pseudo-probe,loop-unroll-full' -verify-pseudo-probe -S -o %t 2>&1 | FileCheck %s --check-prefix=VERIFY 3; RUN: FileCheck %s < %t 4 5; VERIFY: *** Pseudo Probe Verification After LoopFullUnrollPass *** 6; VERIFY: Function foo: 7; VERIFY-DAG: Probe 5 previous factor 1.00 current factor 5.00 8; VERIFY-DAG: Probe 4 previous factor 1.00 current factor 5.00 9 10declare void @foo2() nounwind 11 12define void @foo(i32 %x) { 13bb: 14; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 1, i32 0, i64 -1) 15 %tmp = alloca [5 x ptr], align 16 16 br label %bb7.preheader 17 18bb3.loopexit: 19 %spec.select.lcssa = phi i32 [ %spec.select, %bb10 ] 20 %tmp5.not = icmp eq i32 %spec.select.lcssa, 0 21 br i1 %tmp5.not, label %bb24, label %bb7.preheader 22 23bb7.preheader: 24; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 3, i32 0, i64 -1) 25 %tmp1.06 = phi i32 [ 5, %bb ], [ %spec.select.lcssa, %bb3.loopexit ] 26 br label %bb10 27 28bb10: 29; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 4, i32 0, i64 -1) 30; CHECK: call void @foo2(), !dbg ![[#PROBE6:]] 31; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 4, i32 0, i64 -1) 32; CHECK: call void @foo2(), !dbg ![[#PROBE6:]] 33; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 4, i32 0, i64 -1) 34; CHECK: call void @foo2(), !dbg ![[#PROBE6:]] 35; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 4, i32 0, i64 -1) 36; CHECK: call void @foo2(), !dbg ![[#PROBE6:]] 37; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 4, i32 0, i64 -1) 38; CHECK: call void @foo2(), !dbg ![[#PROBE6:]] 39; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 2, i32 0, i64 -1) 40 %indvars.iv = phi i64 [ 0, %bb7.preheader ], [ %indvars.iv.next, %bb10 ] 41 %tmp1.14 = phi i32 [ %tmp1.06, %bb7.preheader ], [ %spec.select, %bb10 ] 42 %tmp13 = getelementptr inbounds [5 x ptr], ptr %tmp, i64 0, i64 %indvars.iv 43 %tmp14 = load ptr, ptr %tmp13, align 8 44 %tmp15.not = icmp ne ptr %tmp14, null 45 %tmp18 = sext i1 %tmp15.not to i32 46 %spec.select = add nsw i32 %tmp1.14, %tmp18 47 call void @foo2(), !dbg !12 48 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 49 %exitcond.not = icmp eq i64 %indvars.iv.next, 5 50 br i1 %exitcond.not, label %bb3.loopexit, label %bb10, !llvm.loop !13 51 52bb24: 53; CHECK: call void @llvm.pseudoprobe(i64 [[#GUID:]], i64 6, i32 0, i64 -1) 54 ret void 55} 56 57;; A discriminator of 455082031 which is 0x1b200037 in hexdecimal, stands for a direct call probe 58;; with an index of 6 and a scale of -1%. 59; CHECK: ![[#PROBE6]] = !DILocation(line: 2, column: 20, scope: ![[#SCOPE:]]) 60; CHECK: ![[#SCOPE]] = !DILexicalBlockFile(scope: ![[#]], file: ![[#]], discriminator: 455082031) 61 62!llvm.dbg.cu = !{!0} 63!llvm.module.flags = !{!9, !10} 64 65!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2) 66!1 = !DIFile(filename: "test.c", directory: "") 67!2 = !{} 68!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, unit: !0, retainedNodes: !2) 69!5 = !DISubroutineType(types: !6) 70!6 = !{!7} 71!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 72!9 = !{i32 2, !"Dwarf Version", i32 4} 73!10 = !{i32 2, !"Debug Info Version", i32 3} 74!11 = !{!"clang version 3.9.0"} 75!12 = !DILocation(line: 2, column: 20, scope: !4) 76!13 = distinct !{!13, !14} 77!14 = !{!"llvm.loop.unroll.full"} 78