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1; RUN: opt -passes=sroa -S %s -o - \2; RUN: | FileCheck %s --implicit-check-not="#dbg_"3 4;; Check that a dbg.assign for a promoted variable becomes a kill location if5;; it used a fragment that can't be split (the first check directive below).6;; NOTE: If createFragmentExpression gets smarter it may be necessary to create7;; a new test case.8;; In some cases a dbg.assign with a poison value is replaced with a non-poison9;; value. This needs reworking, but as a stop-gap we need to ensure this10;; doesn't cause invalid expressions to be created. Check we don't do it when11;; the expression uses more than one location operand (DW_OP_arg n).12 13; CHECK: if.then:14; CHECK: #dbg_value(i32 poison, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 0, 32),15;; FIXME: The value below should be poison. See https://reviews.llvm.org/D147431#4245260.16; CHECK: #dbg_value(i32 %{{.*}}, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 32, 32),17 18; CHECK: if.else:19; CHECK: #dbg_value(i32 2, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 0, 32),20; CHECK: #dbg_value(i32 0, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 32, 32),21 22; CHECK: if.inner:23; CHECK: #dbg_value(i32 poison, ![[#]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_stack_value),24 25; CHECK: end:26; CHECK: #dbg_value(i32 %{{.*}}, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 0, 32),27 28declare i64 @get_i64()29 30define internal fastcc i64 @fun() !dbg !18 {31entry:32 %codepoint = alloca i64, align 4, !DIAssignID !2733 call void @llvm.dbg.assign(metadata i1 poison, metadata !15, metadata !DIExpression(), metadata !27, metadata ptr %codepoint, metadata !DIExpression()), !dbg !2634 %0 = call i64 @get_i64() #235 %1 = add i64 %0, 136 %cmp = icmp ugt i64 %1, 10037 br i1 %cmp, label %if.then, label %if.else38 39if.then:40 store i64 %1, ptr %codepoint, align 4, !DIAssignID !2541 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 !2642 br label %end43 44if.else:45 store i64 2, ptr %codepoint, align 4, !DIAssignID !2846 call void @llvm.dbg.assign(metadata i32 2, metadata !15, metadata !DIExpression(), metadata !28, metadata ptr %codepoint, metadata !DIExpression()), !dbg !2647 br i1 %cmp, label %end, label %if.inner48 49if.inner:50 store i32 3, ptr %codepoint, align 4, !DIAssignID !2951 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 !2652 br label %end53 54end:55 %r = load i32, ptr %codepoint56 %rr = zext i32 %r to i6457 ret i64 %rr58}59 60declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)61 62!llvm.dbg.cu = !{!0}63!llvm.module.flags = !{!13, !14}64 65!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)66!1 = !DIFile(filename: "reduce.cpp", directory: "/")67!2 = !{}68!13 = !{i32 2, !"Debug Info Version", i32 3}69!14 = !{i32 7, !"debug-info-assignment-tracking", i1 true}70!15 = !DILocalVariable(name: "codepoint", scope: !18, file: !1, line: 10, type: !24)71!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)72!19 = distinct !DISubroutineType(types: !2)73!24 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)74!25 = distinct !DIAssignID()75!26 = !DILocation(line: 0, scope: !18)76!27 = distinct !DIAssignID()77!28 = distinct !DIAssignID()78!29 = distinct !DIAssignID()79