1; RUN: opt < %s -licm -S | FileCheck %s 2; RUN: opt < %s -strip-debug -licm -S | FileCheck %s 3 4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7; Verify that the sdiv is hoisted out of the loop 8; even in the presence of a preceding debug intrinsic. 9 10@a = global i32 0 11@b = global i32 0 12@c = global i32 0 13 14define void @fn1() !dbg !6 { 15; CHECK-LABEL: @fn1( 16; CHECK-NEXT: [[_TMP2:%.*]] = load i32, i32* @a, align 4 17; CHECK-NEXT: [[_TMP3:%.*]] = load i32, i32* @b, align 4 18; CHECK-NEXT: [[_TMP4:%.*]] = sdiv i32 [[_TMP2]], [[_TMP3]] 19; CHECK-NEXT: br label [[BB3:%.*]] 20 br label %bb3 21 22bb3: ; preds = %bb3, %0 23 call void @llvm.dbg.value(metadata i32* @c, metadata !10, metadata !DIExpression(DW_OP_deref)), !dbg !12 24 %_tmp2 = load i32, i32* @a, align 4 25 %_tmp3 = load i32, i32* @b, align 4 26 %_tmp4 = sdiv i32 %_tmp2, %_tmp3 27 store i32 %_tmp4, i32* @c, align 4 28 %_tmp6 = load volatile i32, i32* @c, align 4 29 br label %bb3 30} 31 32; Function Attrs: nounwind readnone speculatable 33declare void @llvm.dbg.value(metadata, metadata, metadata) #0 34 35attributes #0 = { nounwind readnone speculatable } 36 37!llvm.dbg.cu = !{!0} 38!llvm.module.flags = !{!3, !4} 39!llvm.ident = !{!5} 40 41!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "foo", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2) 42!1 = !DIFile(filename: "foo.c", directory: "/") 43!2 = !{} 44!3 = !{i32 2, !"Dwarf Version", i32 4} 45!4 = !{i32 2, !"Debug Info Version", i32 3} 46!5 = !{!"foo"} 47!6 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 3, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: false, unit: !0, retainedNodes: !2) 48!7 = !DISubroutineType(types: !8) 49!8 = !{!9} 50!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 51!10 = !DILocalVariable(name: "f", scope: !11, line: 5, type: !9) 52!11 = distinct !DILexicalBlock(scope: !6, file: !1, line: 4, column: 12) 53!12 = !DILocation(line: 5, column: 9, scope: !11) 54