| ; RUN: opt %s -passes='sroa,early-cse' -S | FileCheck %s |
| ; CHECK: DIExpression(DW_OP_constu, 9223372036854775808, DW_OP_minus, DW_OP_stack_value) |
| ; Created from the following C input (and then delta-reduced the IR): |
| ; |
| ; extern unsigned long long use(unsigned long long); |
| ; void f(unsigned long long x) { |
| ; for (; x > 0; x --) { |
| ; unsigned long long y = x + 0x8000000000000000; |
| ; use(x); |
| ; } |
| ; } |
| |
| define void @f(i64 noundef %x) #0 !dbg !9 { |
| entry: |
| %x.addr = alloca i64, align 8 |
| %y = alloca i64, align 8 |
| br label %for.cond |
| for.cond: ; preds = %for.inc, %entry |
| %0 = load i64, ptr %x.addr, align 8 |
| call void @llvm.dbg.declare(metadata ptr %y, metadata !15, metadata !DIExpression()) |
| , !dbg !29 |
| %1 = load i64, ptr %x.addr, align 8 |
| %add = add i64 %1, -9223372036854775808 |
| store i64 %add, ptr %y, align 8 |
| br label %for.cond |
| } |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| !llvm.module.flags = !{!3,!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None, sysroot: "/") |
| !1 = !DIFile(filename: "t.c", directory: "/") |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !7 = !{i32 7, !"frame-pointer", i32 2} |
| !9 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 2, type: !10, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13) |
| !10 = !DISubroutineType(types: !11) |
| !11 = !{null, !12} |
| !12 = !DIBasicType(name: "unsigned long long", size: 64, encoding: DW_ATE_unsigned) |
| !13 = !{} |
| !15 = !DILocalVariable(name: "y", scope: !16, file: !1, line: 4, type: !12) |
| !16 = distinct !DILexicalBlock(scope: !17, file: !1, line: 3, column: 23) |
| !17 = distinct !DILexicalBlock(scope: !18, file: !1, line: 3, column: 3) |
| !18 = distinct !DILexicalBlock(scope: !9, file: !1, line: 3, column: 3) |
| !29 = !DILocation(line: 4, column: 24, scope: !16) |