; RUN: opt -passes=sroa -S %s -o - \ ; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg" ; RUN: opt --try-experimental-debuginfo-iterators -passes=sroa -S %s -o - \ ; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg" ;; Check that a dbg.assign for a promoted variable becomes a kill location if ;; it used a fragment that can't be split (the first check directive below). ;; NOTE: If createFragmentExpression gets smarter it may be necessary to create ;; a new test case. ;; In some cases a dbg.assign with a poison value is replaced with a non-poison ;; value. This needs reworking, but as a stop-gap we need to ensure this ;; doesn't cause invalid expressions to be created. Check we don't do it when ;; the expression uses more than one location operand (DW_OP_arg n). ; CHECK: if.then: ; CHECK: dbg.value(metadata i32 poison, metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)) ;; FIXME: The value below should be poison. See https://reviews.llvm.org/D147431#4245260. ; CHECK: dbg.value(metadata i32 %{{.*}}, metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32)) ; CHECK: if.else: ; CHECK: dbg.value(metadata i32 2, metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)) ; CHECK: dbg.value(metadata i32 0, metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32)) ; CHECK: if.inner: ; CHECK: call void @llvm.dbg.value(metadata i32 poison, metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_stack_value)) ; CHECK: end: ; CHECK: dbg.value(metadata i32 %{{.*}}, metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)) declare i64 @get_i64() define internal fastcc i64 @fun() !dbg !18 { entry: %codepoint = alloca i64, align 4, !DIAssignID !27 call void @llvm.dbg.assign(metadata i1 poison, metadata !15, metadata !DIExpression(), metadata !27, metadata ptr %codepoint, metadata !DIExpression()), !dbg !26 %0 = call i64 @get_i64() #2 %1 = add i64 %0, 1 %cmp = icmp ugt i64 %1, 100 br i1 %cmp, label %if.then, label %if.else if.then: store i64 %1, ptr %codepoint, align 4, !DIAssignID !25 call void @llvm.dbg.assign(metadata i64 %1, metadata !15, metadata !DIExpression(DW_OP_plus_uconst, 1, DW_OP_stack_value), metadata !25, metadata ptr %codepoint, metadata !DIExpression()), !dbg !26 br label %end if.else: store i64 2, ptr %codepoint, align 4, !DIAssignID !28 call void @llvm.dbg.assign(metadata i32 2, metadata !15, metadata !DIExpression(), metadata !28, metadata ptr %codepoint, metadata !DIExpression()), !dbg !26 br i1 %cmp, label %end, label %if.inner if.inner: store i32 3, ptr %codepoint, align 4, !DIAssignID !29 call void @llvm.dbg.assign(metadata i32 poison, metadata !15, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_stack_value), metadata !29, metadata ptr %codepoint, metadata !DIExpression()), !dbg !26 br label %end end: %r = load i32, ptr %codepoint %rr = zext i32 %r to i64 ret i64 %rr } declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!13, !14} !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 17.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, imports: !2, splitDebugInlining: false, nameTableKind: None) !1 = !DIFile(filename: "reduce.cpp", directory: "/") !2 = !{} !13 = !{i32 2, !"Debug Info Version", i32 3} !14 = !{i32 7, !"debug-info-assignment-tracking", i1 true} !15 = !DILocalVariable(name: "codepoint", scope: !18, file: !1, line: 10, type: !24) !18 = distinct !DISubprogram(name: "fun", linkageName: "fun", scope: !1, file: !1, line: 4, type: !19, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) !19 = distinct !DISubroutineType(types: !2) !24 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) !25 = distinct !DIAssignID() !26 = !DILocation(line: 0, scope: !18) !27 = distinct !DIAssignID() !28 = distinct !DIAssignID() !29 = distinct !DIAssignID()