| ; RUN: opt < %s -licm -S | FileCheck %s |
| ; RUN: opt < %s -strip-debug -licm -S | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Verify that the sdiv is hoisted out of the loop |
| ; even in the presence of a preceding debug intrinsic. |
| |
| @a = global i32 0 |
| @b = global i32 0 |
| @c = global i32 0 |
| |
| define void @fn1() !dbg !6 { |
| ; CHECK-LABEL: @fn1( |
| ; CHECK-NEXT: [[_TMP2:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: [[_TMP3:%.*]] = load i32, i32* @b, align 4 |
| ; CHECK-NEXT: [[_TMP4:%.*]] = sdiv i32 [[_TMP2]], [[_TMP3]] |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| br label %bb3 |
| |
| bb3: ; preds = %bb3, %0 |
| call void @llvm.dbg.value(metadata i32* @c, metadata !10, metadata !DIExpression(DW_OP_deref)), !dbg !12 |
| %_tmp2 = load i32, i32* @a, align 4 |
| %_tmp3 = load i32, i32* @b, align 4 |
| %_tmp4 = sdiv i32 %_tmp2, %_tmp3 |
| store i32 %_tmp4, i32* @c, align 4 |
| %_tmp6 = load volatile i32, i32* @c, align 4 |
| br label %bb3 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #0 |
| |
| attributes #0 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| !llvm.ident = !{!5} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "foo", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2) |
| !1 = !DIFile(filename: "foo.c", directory: "/") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{!"foo"} |
| !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) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{!9} |
| !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !10 = !DILocalVariable(name: "f", scope: !11, line: 5, type: !9) |
| !11 = distinct !DILexicalBlock(scope: !6, file: !1, line: 4, column: 12) |
| !12 = !DILocation(line: 5, column: 9, scope: !11) |
