2018-02-09 22:03:26 +08:00
|
|
|
; RUN: llc -mtriple mips64-unknown-freebsd12.0 -relocation-model pic -mcpu=mips4 -target-abi n64 -O2 -verify-machineinstrs -o - %s
|
2017-10-26 18:58:36 +08:00
|
|
|
|
|
|
|
|
; Test that the long branch pass does not crash due to the control flow
|
|
|
|
|
; optimizer producing malformed basic block operands due to the backend
|
|
|
|
|
; failing to handle debug information around branch instructions.
|
|
|
|
|
|
|
|
|
|
define void @f() !dbg !5 {
|
|
|
|
|
entry:
|
|
|
|
|
%cmp = icmp eq i32 undef, 0, !dbg !16
|
|
|
|
|
%conv = zext i1 %cmp to i32, !dbg !16
|
|
|
|
|
tail call void @llvm.dbg.value(metadata i32 %conv, metadata !11, metadata !DIExpression()), !dbg !17
|
|
|
|
|
%tobool = icmp eq i32 undef, 0, !dbg !18
|
|
|
|
|
br i1 %tobool, label %if.end, label %cleanup7.critedge, !dbg !21
|
|
|
|
|
|
|
|
|
|
if.end: ; preds = %entry
|
|
|
|
|
%call6 = call i32 bitcast (i32 (...)* @j to i32 (i32)*)(i32 signext %conv)
|
|
|
|
|
#4, !dbg !22
|
|
|
|
|
br label %cleanup7, !dbg !23
|
|
|
|
|
|
|
|
|
|
cleanup7.critedge: ; preds = %entry
|
|
|
|
|
call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull undef) #4, !dbg !24
|
|
|
|
|
br label %cleanup7
|
|
|
|
|
|
|
|
|
|
cleanup7: ; preds = %cleanup7.critedge,
|
|
|
|
|
ret void
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
|
|
|
|
|
|
|
|
|
|
declare i32 @j(...)
|
|
|
|
|
|
|
|
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #3
|
|
|
|
|
attributes #1 = { argmemonly nounwind }
|
|
|
|
|
attributes #3 = { nounwind readnone speculatable }
|
|
|
|
|
attributes #4 = { nounwind }
|
|
|
|
|
|
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
|
|
|
!llvm.module.flags = !{!3, !4}
|
|
|
|
|
|
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang
|
|
|
|
|
version 6.0.0", isOptimized: true, runtimeVersion:
|
|
|
|
|
0, emissionKind: FullDebug, enums: !2)
|
|
|
|
|
!1 = !DIFile(filename:
|
|
|
|
|
"/tmp//<stdin>", directory:
|
|
|
|
|
"/tmp/")
|
|
|
|
|
!2 = !{}
|
|
|
|
|
!3 = !{i32 2, !"Debug Info Version", i32 3}
|
|
|
|
|
!4 = !{i32 7, !"PIC Level", i32 2}
|
|
|
|
|
!5 = distinct !DISubprogram(name: "f", scope: !6, file: !6, line: 8, type: !7,
|
|
|
|
|
isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !0,
|
|
|
|
|
variables: !10)
|
|
|
|
|
!6 = !DIFile(filename:
|
|
|
|
|
"/tmp/test.c",
|
|
|
|
|
directory: "/tmp")
|
|
|
|
|
!7 = !DISubroutineType(types: !8)
|
|
|
|
|
!8 = !{!9}
|
|
|
|
|
!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
|
|
|
!10 = !{!11, !12, !14}
|
|
|
|
|
!11 = !DILocalVariable(name: "e", scope: !5, file: !6, line: 9, type: !9)
|
|
|
|
|
!12 = !DILocalVariable(name: "g", scope: !13, file: !6, line: 11, type: !9)
|
|
|
|
|
!13 = distinct !DILexicalBlock(scope: !5, file: !6, line: 10, column: 3)
|
|
|
|
|
!14 = !DILocalVariable(name: "d", scope: !13, file: !6, line: 12, type: !15)
|
|
|
|
|
!15 = !DIDerivedType(tag: DW_TAG_typedef, name: "a", file: !6, line: 2,
|
|
|
|
|
baseType: !9)
|
|
|
|
|
!16 = !DILocation(line: 9, column: 15, scope: !5)
|
|
|
|
|
!17 = !DILocation(line: 9, column: 7, scope: !5)
|
|
|
|
|
!18 = !DILocation(line: 12, column: 5, scope: !19)
|
|
|
|
|
!19 = distinct !DILexicalBlock(scope: !20, file: !6, line: 12, column: 5)
|
|
|
|
|
!20 = distinct !DILexicalBlock(scope: !5, file: !6, line: 10, column: 3)
|
|
|
|
|
!21 = !DILocation(line: 12, column: 5, scope: !20)
|
|
|
|
|
!22 = !DILocation(line: 16, column: 3, scope: !5)
|
|
|
|
|
!23 = !DILocation(line: 17, column: 1, scope: !5)
|
|
|
|
|
!24 = !DILocation(line: 15, column: 3, scope: !5)
|
