1; RUN: opt < %s -strip-debug -passes=licm -S | FileCheck %s 2; RUN: opt < %s -passes=licm -verify-memoryssa -S | FileCheck %s 3; RUN: opt < %s -passes=licm -verify-memoryssa -S --try-experimental-debuginfo-iterators | FileCheck %s 4 5target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 6target triple = "x86_64-unknown-linux-gnu" 7 8; Verify that the sdiv is hoisted out of the loop 9; even in the presence of a preceding debug intrinsic. 10 11@a = global i32 0 12@b = global i32 0 13@c = global i32 0 14 15define void @fn1() !dbg !6 { 16; CHECK-LABEL: @fn1( 17; CHECK-NEXT: [[_TMP2:%.*]] = load i32, ptr @a, align 4 18; CHECK-NEXT: [[_TMP3:%.*]] = load i32, ptr @b, align 4 19; CHECK-NEXT: [[_TMP4:%.*]] = sdiv i32 [[_TMP2]], [[_TMP3]] 20; CHECK-NEXT: br label [[BB3:%.*]] 21 22 br label %bb3 23 24bb3: ; preds = %bb3, %0 25 call void @llvm.dbg.value(metadata ptr @c, metadata !10, metadata !DIExpression(DW_OP_deref)), !dbg !12 26 %_tmp2 = load i32, ptr @a, align 4 27 %_tmp3 = load i32, ptr @b, align 4 28 %_tmp4 = sdiv i32 %_tmp2, %_tmp3 29 store i32 %_tmp4, ptr @c, align 4 30 %_tmp6 = load volatile i32, ptr @c, align 4 31 br label %bb3 32} 33 34; Function Attrs: nounwind readnone speculatable 35declare void @llvm.dbg.value(metadata, metadata, metadata) #0 36 37attributes #0 = { nounwind readnone speculatable } 38 39!llvm.dbg.cu = !{!0} 40!llvm.module.flags = !{!3, !4} 41!llvm.ident = !{!5} 42 43!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "foo", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2) 44!1 = !DIFile(filename: "foo.c", directory: "/") 45!2 = !{} 46!3 = !{i32 2, !"Dwarf Version", i32 4} 47!4 = !{i32 2, !"Debug Info Version", i32 3} 48!5 = !{!"foo"} 49!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) 50!7 = !DISubroutineType(types: !8) 51!8 = !{!9} 52!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 53!10 = !DILocalVariable(name: "f", scope: !11, line: 5, type: !9) 54!11 = distinct !DILexicalBlock(scope: !6, file: !1, line: 4, column: 12) 55!12 = !DILocation(line: 5, column: 9, scope: !11) 56