forked from OSchip/llvm-project
76 lines
2.9 KiB
LLVM
76 lines
2.9 KiB
LLVM
|
; RUN: opt -codegenprepare -S %s | FileCheck %s
|
||
|
|
;
|
||
|
|
; Generated from the following source with:
|
||
|
|
; clang -O2 -g -S -emit-llvm -mllvm -stop-after=indirectbr-expand test.cpp
|
||
|
|
;
|
||
|
|
; extern void use(int);
|
||
|
|
; extern int foo(long long);
|
||
|
|
;
|
||
|
|
; void test(int p)
|
||
|
|
; {
|
||
|
|
; int i = p + 4;
|
||
|
|
; (void)foo(i); // sign extension of i
|
||
|
|
; if (p)
|
||
|
|
; return;
|
||
|
|
; use(i); // use of original i
|
||
|
|
; }
|
||
|
|
;
|
||
|
|
; PR39845: Check that CodeGenPrepare does not drop the reference to a local when it is
|
||
|
|
; sign-extended and used later.
|
||
|
|
;
|
||
|
|
; CHECK: define{{.*}}test
|
||
|
|
; CHECK: call{{.*}}dbg.value(metadata i32 %p
|
||
|
|
; CHECK: call{{.*}}dbg.value(metadata i32 %add
|
||
|
|
;
|
||
|
|
define dso_local void @_Z4testi(i32 %p) local_unnamed_addr !dbg !7 {
|
||
|
|
entry:
|
||
|
|
call void @llvm.dbg.value(metadata i32 %p, metadata !12, metadata !DIExpression()), !dbg !14
|
||
|
|
%add = add nsw i32 %p, 4, !dbg !15
|
||
|
|
call void @llvm.dbg.value(metadata i32 %add, metadata !13, metadata !DIExpression()), !dbg !16
|
||
|
|
%conv = sext i32 %add to i64, !dbg !17
|
||
|
|
%call = tail call i32 @_Z3foox(i64 %conv), !dbg !18
|
||
|
|
%tobool = icmp eq i32 %p, 0, !dbg !19
|
||
|
|
br i1 %tobool, label %if.end, label %cleanup, !dbg !21
|
||
|
|
|
||
|
|
if.end:
|
||
|
|
tail call void @_Z3usei(i32 %add), !dbg !22
|
||
|
|
br label %cleanup, !dbg !23
|
||
|
|
|
||
|
|
cleanup:
|
||
|
|
ret void, !dbg !23
|
||
|
|
}
|
||
|
|
|
||
|
|
declare dso_local i32 @_Z3foox(i64) local_unnamed_addr
|
||
|
|
declare dso_local void @_Z3usei(i32) local_unnamed_addr
|
||
|
|
|
||
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata)
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!0}
|
||
|
|
!llvm.module.flags = !{!3, !4, !5}
|
||
|
|
!llvm.ident = !{!6}
|
||
|
|
|
||
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 8.0.0 (trunk 348209)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
|
||
|
|
!1 = !DIFile(filename: "test.cpp", directory: "/home/test/src")
|
||
|
|
!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 8.0.0 (trunk 348209)"}
|
||
|
|
!7 = distinct !DISubprogram(name: "test", linkageName: "_Z4testi", scope: !1, file: !1, line: 4, type: !8, scopeLine: 5, 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: "p", arg: 1, scope: !7, file: !1, line: 4, type: !10)
|
||
|
|
!13 = !DILocalVariable(name: "i", scope: !7, file: !1, line: 6, type: !10)
|
||
|
|
!14 = !DILocation(line: 4, column: 15, scope: !7)
|
||
|
|
!15 = !DILocation(line: 6, column: 13, scope: !7)
|
||
|
|
!16 = !DILocation(line: 6, column: 7, scope: !7)
|
||
|
|
!17 = !DILocation(line: 7, column: 13, scope: !7)
|
||
|
|
!18 = !DILocation(line: 7, column: 9, scope: !7)
|
||
|
|
!19 = !DILocation(line: 8, column: 7, scope: !20)
|
||
|
|
!20 = distinct !DILexicalBlock(scope: !7, file: !1, line: 8, column: 7)
|
||
|
|
!21 = !DILocation(line: 8, column: 7, scope: !7)
|
||
|
|
!22 = !DILocation(line: 10, column: 3, scope: !7)
|
||
|
|
!23 = !DILocation(line: 11, column: 1, scope: !7)
|