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llvm-mirror/test/DebugInfo/X86/dbg-value-funcarg.ll
Matt Arsenault 23c462a8b5 Rename ExpandISelPseudo->FinalizeISel, delay register reservation 
This allows targets to make more decisions about reserved registers
after isel. For example, now it should be certain there are calls or
stack objects in the frame or not, which could have been introduced by
legalization.

Patch by Matthias Braun

llvm-svn: 363757
2019-06-19 00:25:39 +00:00

166 lines
7.3 KiB
LLVM
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -start-after=codegenprepare -stop-before=finalize-isel -o - %s | FileCheck %s
; Input to this test looked like this and was compiled using: clang -g -O1 -mllvm -stop-after=codegenprepare -S
;
; extern void bar(int);
;
; void foo_local(int t1a) {
; int local = 123;
; bar(local);
; local = t1a;
; bar(local);
; }
;
; void foo_other_param(int t2a, int t2b) {
; bar(t2b);
; t2b = 123;
; bar(t2b);
; t2b = t2a;
; bar(t2b);
; }
;
; void foo_same_param(int t3a) {
; bar(t3a);
; int tmp = t3a;
; t3a = 123;
; bar(t3a);
; t3a = tmp;
; bar(t3a);
; }
;
; Catch metadata references for involved variables.
;
; CHECK-DAG: ![[T1A:.*]] = !DILocalVariable(name: "t1a"
; CHECK-DAG: ![[LOCAL:.*]] = !DILocalVariable(name: "local"
; CHECK-DAG: ![[T2A:.*]] = !DILocalVariable(name: "t2a"
; CHECK-DAG: ![[T2B:.*]] = !DILocalVariable(name: "t2b"
; CHECK-DAG: ![[T3A:.*]] = !DILocalVariable(name: "t3a"
; CHECK-DAG: ![[TMP:.*]] = !DILocalVariable(name: "tmp"
define dso_local void @foo_local(i32 %t1a) local_unnamed_addr #0 !dbg !7 {
; CHECK-LABEL: name: foo_local
; CHECK-NOT: DBG_VALUE
; CHECK: DBG_VALUE $edi, $noreg, ![[T1A]], !DIExpression(),
; CHECK-NEXT: %0:gr32 = COPY $edi
; CHECK-NEXT: DBG_VALUE %0, $noreg, ![[T1A]], !DIExpression(),
; CHECK-NEXT: DBG_VALUE 123, $noreg, ![[LOCAL]], !DIExpression(),
; CHECK-NOT: DBG_VALUE
; CHECK: CALL64pcrel32 @bar,
; CHECK: DBG_VALUE %0, $noreg, ![[LOCAL]], !DIExpression(),
; CHECK: DBG_VALUE $edi, $noreg, ![[T1A]], !DIExpression(),
; CHECK-NOT: DBG_VALUE
; CHECK: TCRETURNdi64 @bar,
entry:
call void @llvm.dbg.value(metadata i32 %t1a, metadata !12, metadata !DIExpression()), !dbg !14
call void @llvm.dbg.value(metadata i32 123, metadata !13, metadata !DIExpression()), !dbg !15
tail call void @bar(i32 123) #3, !dbg !16
call void @llvm.dbg.value(metadata i32 %t1a, metadata !13, metadata !DIExpression()), !dbg !15
tail call void @bar(i32 %t1a) #3, !dbg !17
ret void, !dbg !18
}
define dso_local void @foo_other_param(i32 %t2a, i32 %t2b) local_unnamed_addr #0 !dbg !19 {
; CHECK-LABEL: name: foo_other_param
; CHECK: DBG_VALUE $edi, $noreg, ![[T2A]], !DIExpression(),
; CHECK: DBG_VALUE $esi, $noreg, ![[T2B]], !DIExpression(),
; CHECK: %1:gr32 = COPY $esi
; CHECK: DBG_VALUE %1, $noreg, ![[T2B]], !DIExpression(),
; CHECK: %0:gr32 = COPY $edi
; CHECK: DBG_VALUE %0, $noreg, ![[T2A]], !DIExpression(),
; CHECK: DBG_VALUE $edi, $noreg, ![[T2B]], !DIExpression(),
; CHECK: CALL64pcrel32 @bar,
; CHECK: DBG_VALUE 123, $noreg, ![[T2B]], !DIExpression(),
; CHECK: CALL64pcrel32 @bar,
; CHECK: DBG_VALUE %0, $noreg, ![[T2B]], !DIExpression(),
; CHECK: DBG_VALUE $edi, $noreg, ![[T2A]], !DIExpression(),
; CHECK: TCRETURNdi64 @bar,
entry:
call void @llvm.dbg.value(metadata i32 %t2a, metadata !23, metadata !DIExpression()), !dbg !25
call void @llvm.dbg.value(metadata i32 %t2b, metadata !24, metadata !DIExpression()), !dbg !26
tail call void @bar(i32 %t2b) #3, !dbg !27
call void @llvm.dbg.value(metadata i32 123, metadata !24, metadata !DIExpression()), !dbg !26
tail call void @bar(i32 123) #3, !dbg !28
call void @llvm.dbg.value(metadata i32 %t2a, metadata !24, metadata !DIExpression()), !dbg !26
tail call void @bar(i32 %t2a) #3, !dbg !29
ret void, !dbg !30
}
define dso_local void @foo_same_param(i32 %t3a) local_unnamed_addr #0 !dbg !31 {
; CHECK-LABEL: name: foo_same_param
; CHECK: DBG_VALUE $edi, $noreg, ![[T3A]], !DIExpression(),
; CHECK: %0:gr32 = COPY $edi
; CHECK: DBG_VALUE %0, $noreg, ![[T3A]], !DIExpression(),
; CHECK: CALL64pcrel32 @bar,
; CHECK: DBG_VALUE %0, $noreg, ![[TMP]], !DIExpression(),
; CHECK: DBG_VALUE 123, $noreg, ![[T3A]], !DIExpression(),
; CHECK: CALL64pcrel32 @bar,
; CHECK: DBG_VALUE %0, $noreg, ![[T3A]], !DIExpression(),
; CHECK: TCRETURNdi64 @bar,
entry:
call void @llvm.dbg.value(metadata i32 %t3a, metadata !33, metadata !DIExpression()), !dbg !35
tail call void @bar(i32 %t3a) #3, !dbg !36
call void @llvm.dbg.value(metadata i32 %t3a, metadata !34, metadata !DIExpression()), !dbg !37
call void @llvm.dbg.value(metadata i32 123, metadata !33, metadata !DIExpression()), !dbg !35
tail call void @bar(i32 123) #3, !dbg !38
call void @llvm.dbg.value(metadata i32 %t3a, metadata !33, metadata !DIExpression()), !dbg !35
tail call void @bar(i32 %t3a) #3, !dbg !39
ret void, !dbg !40
}
declare void @llvm.dbg.value(metadata, metadata, metadata) #2
declare dso_local void @bar(i32) local_unnamed_addr
attributes #0 = { nounwind uwtable }
attributes #2 = { nounwind readnone speculatable }
attributes #3 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 9.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
!1 = !DIFile(filename: "foo.c", directory: "")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{!"clang version 9.0.0"}
!7 = distinct !DISubprogram(name: "foo_local", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
!8 = !DISubroutineType(types: !9)
!9 = !{null, !10}
!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!11 = !{!12, !13}
!12 = !DILocalVariable(name: "t1a", arg: 1, scope: !7, file: !1, line: 3, type: !10)
!13 = !DILocalVariable(name: "local", scope: !7, file: !1, line: 4, type: !10)
!14 = !DILocation(line: 3, column: 20, scope: !7)
!15 = !DILocation(line: 4, column: 7, scope: !7)
!16 = !DILocation(line: 5, column: 3, scope: !7)
!17 = !DILocation(line: 7, column: 3, scope: !7)
!18 = !DILocation(line: 8, column: 1, scope: !7)
!19 = distinct !DISubprogram(name: "foo_other_param", scope: !1, file: !1, line: 10, type: !20, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !22)
!20 = !DISubroutineType(types: !21)
!21 = !{null, !10, !10}
!22 = !{!23, !24}
!23 = !DILocalVariable(name: "t2a", arg: 1, scope: !19, file: !1, line: 10, type: !10)
!24 = !DILocalVariable(name: "t2b", arg: 2, scope: !19, file: !1, line: 10, type: !10)
!25 = !DILocation(line: 10, column: 26, scope: !19)
!26 = !DILocation(line: 10, column: 35, scope: !19)
!27 = !DILocation(line: 11, column: 3, scope: !19)
!28 = !DILocation(line: 13, column: 3, scope: !19)
!29 = !DILocation(line: 15, column: 3, scope: !19)
!30 = !DILocation(line: 16, column: 1, scope: !19)
!31 = distinct !DISubprogram(name: "foo_same_param", scope: !1, file: !1, line: 18, type: !8, scopeLine: 18, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !32)
!32 = !{!33, !34}
!33 = !DILocalVariable(name: "t3a", arg: 1, scope: !31, file: !1, line: 18, type: !10)
!34 = !DILocalVariable(name: "tmp", scope: !31, file: !1, line: 20, type: !10)
!35 = !DILocation(line: 18, column: 25, scope: !31)
!36 = !DILocation(line: 19, column: 3, scope: !31)
!37 = !DILocation(line: 20, column: 7, scope: !31)
!38 = !DILocation(line: 22, column: 3, scope: !31)
!39 = !DILocation(line: 24, column: 3, scope: !31)
!40 = !DILocation(line: 25, column: 1, scope: !31)
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