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llvm-project/llvm/test/DebugInfo/ARM/prologue_end.ll

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Remove windows line endings introduced by r252177. NFC. llvm-svn: 252217
2015-11-06 05:54:58 +08:00
; RUN: llc -disable-fp-elim -O0 %s -mtriple armv7-apple-darwin -o - | FileCheck %s
test/DebugInfo/ARM/prologue_end.ll references thumbv1, which is invalid. The committer didn't respond at http://reviews.llvm.org/D14338, so we've got to fix this for them. This test doesn't pass with thumbv6, so I suppose what they meant is thumbv7. llvm-svn: 252754
2015-11-12 01:22:18 +08:00
; RUN: llc -disable-fp-elim -O0 %s -mtriple thumbv7-apple-darwin -o - | FileCheck %s
Remove windows line endings introduced by r252177. NFC. llvm-svn: 252217
2015-11-06 05:54:58 +08:00
; int func(void);
; void prologue_end_test() {
; func();
; func();
; }
DI: Reverse direction of subprogram -> function edge. Previously, subprograms contained a metadata reference to the function they described. Because most clients need to get or set a subprogram for a given function rather than the other way around, this created unneeded inefficiency. For example, many passes needed to call the function llvm::makeSubprogramMap() to build a mapping from functions to subprograms, and the IR linker needed to fix up function references in a way that caused quadratic complexity in the IR linking phase of LTO. This change reverses the direction of the edge by storing the subprogram as function-level metadata and removing DISubprogram's function field. Since this is an IR change, a bitcode upgrade has been provided. Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is attached to the PR. Differential Revision: http://reviews.llvm.org/D14265 llvm-svn: 252219
2015-11-06 06:03:56 +08:00
define void @prologue_end_test() nounwind uwtable !dbg !4 {
Remove windows line endings introduced by r252177. NFC. llvm-svn: 252217
2015-11-06 05:54:58 +08:00
; CHECK: prologue_end_test:
; CHECK: push {r7, lr}
; CHECK: {{mov r7, sp|add r7, sp}}
; CHECK: sub sp
; CHECK: .loc 1 3 3 prologue_end
; CHECK: bl {{_func|Ltmp}}
; CHECK: bl {{_func|Ltmp}}
entry:
%call = call i32 @func(), !dbg !13
%call1 = call i32 @func(), !dbg !14
ret void, !dbg !15
}
declare i32 @func()
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!7, !8, !9, !10, !11}
!llvm.ident = !{!12}
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (trunk 242129)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
Remove windows line endings introduced by r252177. NFC. llvm-svn: 252217
2015-11-06 05:54:58 +08:00
!1 = !DIFile(filename: "foo.c", directory: "/tmp")
!2 = !{}
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
!4 = distinct !DISubprogram(name: "prologue_end_test", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, unit: !0, variables: !2)
Remove windows line endings introduced by r252177. NFC. llvm-svn: 252217
2015-11-06 05:54:58 +08:00
!5 = !DISubroutineType(types: !6)
!6 = !{null}
!7 = !{i32 2, !"Dwarf Version", i32 2}
!8 = !{i32 2, !"Debug Info Version", i32 3}
!9 = !{i32 1, !"wchar_size", i32 4}
!10 = !{i32 1, !"min_enum_size", i32 4}
!11 = !{i32 1, !"PIC Level", i32 2}
!12 = !{!"clang version 3.7.0 (trunk 242129)"}
!13 = !DILocation(line: 3, column: 3, scope: !4)
!14 = !DILocation(line: 4, column: 3, scope: !4)
!15 = !DILocation(line: 5, column: 1, scope: !4)