| ; RUN: llc -start-after=codegenprepare -stop-before=finalize-isel < %s -o - | FileCheck %s |
| |
| ; Test that stack frame dbg.values are lowered to DBG_VALUEs, in blocks that |
| ; are local to the alloca, and elsewhere. Differs from dbg-value-frame-index.ll |
| ; because this test does not result in the frame-index being in a vreg, |
| ; instead it's exclusively referred to by memory operands of instructions. |
| ; |
| ; Additionally test that we don't re-order with constant values -- both are |
| ; independent of the order the instructions get lowered, but should not |
| ; interleave. |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-unknown" |
| |
| declare void @dud() |
| |
| ; CHECK: [[BARVAR:![0-9]+]] = !DILocalVariable(name: "bar", |
| |
| define i32 @foo() !dbg !6 { |
| ; CHECK-LABEL: body |
| |
| ; CHECK: DBG_VALUE 0, $noreg, [[BARVAR]] |
| ; CHECK-NEXT: MOV32mi %[[STACKLOC:[a-zA-Z0-9\.]+]], 1, $noreg |
| ; CHECK-NEXT: DBG_VALUE %[[STACKLOC]], $noreg, [[BARVAR]] |
| |
| %p1 = alloca i32 |
| call void @llvm.dbg.value(metadata ptr null, metadata !17, metadata !DIExpression()), !dbg !18 |
| store i32 0, ptr %p1 |
| call void @llvm.dbg.value(metadata ptr %p1, metadata !17, metadata !DIExpression()), !dbg !18 |
| br label %foo |
| |
| foo: |
| |
| ; CHECK-LABEL: bb.1.foo |
| ; CHECK: DBG_VALUE %[[STACKLOC]], $noreg, [[BARVAR]] |
| |
| call void @dud() |
| call void @llvm.dbg.value(metadata ptr %p1, metadata !17, metadata !DIExpression()), !dbg !18 |
| br label %bar |
| |
| bar: |
| |
| ; CHECK-LABEL: bb.2.bar |
| ; CHECK: DBG_VALUE %[[STACKLOC]], $noreg, [[BARVAR]] |
| ; CHECK-NEXT: ADJCALLSTACKDOWN |
| ; CHECK-NEXT: CALL |
| ; CHECK-NEXT: ADJCALLSTACKUP |
| ; CHECK-NEXT: DBG_VALUE 0, $noreg, [[BARVAR]] |
| call void @llvm.dbg.value(metadata ptr %p1, metadata !17, metadata !DIExpression()), !dbg !18 |
| call void @dud() |
| call void @llvm.dbg.value(metadata ptr null, metadata !17, metadata !DIExpression()), !dbg !18 |
| %loaded = load i32, ptr %p1 |
| ret i32 %loaded, !dbg !19 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #6 |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| !llvm.ident = !{!5} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2) |
| !1 = !DIFile(filename: "a.c", directory: "b") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{!""} |
| !6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 13, type: !7, isLocal: false, isDefinition: true, scopeLine: 14, isOptimized: false, unit: !0, retainedNodes: !2) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{!140} |
| !140 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !15 = !{!16} |
| !16 = !DISubrange(count: 5) |
| !17 = !DILocalVariable(name: "bar", scope: !6, line: 13, type: !140) |
| !18 = !DILocation(line: 13, column: 23, scope: !6) |
| !19 = !DILocation(line: 15, column: 5, scope: !6) |
| !20 = !DILocation(line: 16, column: 1, scope: !6) |
| !21 = !DILocalVariable(name: "baz", scope: !6, line: 13, type: !140) |