1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=loop-rotate -S | FileCheck %s 3 4define dso_local i16 @main() local_unnamed_addr #0 !dbg !7 { 5; CHECK-LABEL: @main( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: #dbg_value(i16 9, [[META12:![0-9]+]], !DIExpression(), [[META13:![0-9]+]]) 8; CHECK-NEXT: br label [[BB2:%.*]], !dbg [[DBG14:![0-9]+]] 9; CHECK: bb2: 10; CHECK-NEXT: [[TMP1:%.*]] = phi i16 [ 9, [[ENTRY:%.*]] ], [ [[TMP5:%.*]], [[BB2]] ] 11; CHECK-NEXT: #dbg_value(i16 [[TMP1]], [[META12]], !DIExpression(), [[META13]]) 12; CHECK-NEXT: [[TMP4:%.*]] = call i16 @wibble(i16 [[TMP1]]), !dbg [[DBG14]] 13; CHECK-NEXT: [[TMP5]] = add nsw i16 [[TMP4]], [[TMP1]], !dbg [[DBG14]] 14; CHECK-NEXT: #dbg_value(i16 [[TMP5]], [[META12]], !DIExpression(), [[META13]]) 15; CHECK-NEXT: [[TMP6:%.*]] = call i16 @wibble(i16 [[TMP4]]), !dbg [[DBG14]] 16; CHECK-NEXT: [[TMP7:%.*]] = mul nsw i16 [[TMP6]], 3, !dbg [[DBG14]] 17; CHECK-NEXT: [[TMP8:%.*]] = call i16 @wibble(i16 [[TMP7]]), !dbg [[DBG14]] 18; CHECK-NEXT: [[TMP2:%.*]] = icmp slt i16 [[TMP5]], 17, !dbg [[DBG14]] 19; CHECK-NEXT: br i1 [[TMP2]], label [[BB2]], label [[BB3:%.*]], !dbg [[DBG14]] 20; CHECK: bb3: 21; CHECK-NEXT: [[TMP10:%.*]] = call i16 @wibble(i16 8), !dbg [[DBG14]] 22; CHECK-NEXT: ret i16 [[TMP10]], !dbg [[DBG14]] 23; 24entry: 25 call void @llvm.dbg.value(metadata i16 9, metadata !12, metadata !DIExpression()), !dbg !13 26 br label %bb1, !dbg !14 27 28bb1: 29 %tmp = phi i16 [ 9, %entry ], [ %tmp5, %bb2 ], !dbg !13 30 call void @llvm.dbg.value(metadata i16 %tmp, metadata !12, metadata !DIExpression()), !dbg !13 31 %tmp2 = icmp slt i16 %tmp, 17, !dbg !16 32 br i1 %tmp2, label %bb2, label %bb3, !dbg !16 33 34bb2: 35 %tmp4 = call i16 @wibble(i16 %tmp), !dbg !16 36 %tmp5 = add nsw i16 %tmp4, %tmp, !dbg !16 37 call void @llvm.dbg.value(metadata i16 %tmp5, metadata !12, metadata !DIExpression()), !dbg !13 38 %tmp6 = call i16 @wibble(i16 %tmp4), !dbg !16 39 %tmp7 = mul nsw i16 %tmp6, 3, !dbg !16 40 %tmp8 = call i16 @wibble(i16 %tmp7), !dbg !16 41 br label %bb1, !dbg !16 42 43bb3: 44 %tmp10 = call i16 @wibble(i16 8), !dbg !16 45 ret i16 %tmp10, !dbg !16 46} 47 48declare void @llvm.dbg.value(metadata, metadata, metadata) #1 49 50declare i16 @wibble(i16) #2 51 52attributes #0 = { noinline nounwind } 53attributes #1 = { nounwind readnone speculatable willreturn } 54attributes #2 = { noinline nounwind readnone } 55 56!llvm.dbg.cu = !{!0} 57!llvm.module.flags = !{!3, !4, !5} 58!llvm.ident = !{!6} 59 60!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2, nameTableKind: None) 61!1 = !DIFile(filename: "foo.c", directory: "") 62!2 = !{} 63!3 = !{i32 7, !"Dwarf Version", i32 4} 64!4 = !{i32 2, !"Debug Info Version", i32 3} 65!5 = !{i32 1, !"wchar_size", i32 1} 66!6 = !{!"clang version 10.0.0"} 67!7 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 8, type: !8, scopeLine: 8, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 68!8 = !DISubroutineType(types: !9) 69!9 = !{!10} 70!10 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed) 71!11 = !{!12} 72!12 = !DILocalVariable(name: "x", scope: !7, file: !1, line: 9, type: !10) 73!13 = !DILocation(line: 0, scope: !7) 74!14 = !DILocation(line: 11, column: 8, scope: !15) 75!15 = distinct !DILexicalBlock(scope: !7, file: !1, line: 11, column: 3) 76!16 = !DILocation(line: 11, column: 21, scope: !17) 77!17 = distinct !DILexicalBlock(scope: !15, file: !1, line: 11, column: 3) 78