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llvm-project/llvm/test/DebugInfo/X86/discriminator2.ll

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Read discriminators correctly from object file. Summary: This is the follow-up patch for http://reviews.llvm.org/D19436 * Update the discriminator reading algorithm to match the assignment algorithm. * Add test to cover the new algorithm. Reviewers: dnovillo, echristo, dblaikie Subscribers: danielcdh, dblaikie, echristo, llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19522 llvm-svn: 267945
2016-04-29 06:09:37 +08:00
; RUN: llc -mtriple=i386-unknown-unknown -mcpu=core2 %s -o %t -filetype=obj
llvm-dwarfdump: Replace -debug-dump=sect option with individual options. As discussed on llvm-dev in http://lists.llvm.org/pipermail/llvm-dev/2017-September/117301.html this changes the command line interface of llvm-dwarfdump to match the one used by the dwarfdump utility shipping on macOS. In addition to being shorter to type this format also has the advantage of allowing more than one section to be specified at the same time. In a nutshell, with this change $ llvm-dwarfdump --debug-dump=info $ llvm-dwarfdump --debug-dump=apple-objc becomes $ dwarfdump --debug-info --apple-objc Differential Revision: https://reviews.llvm.org/D37714 llvm-svn: 312970
2017-09-12 06:59:45 +08:00
; RUN: llvm-dwarfdump -debug-line %t | FileCheck %s
Read discriminators correctly from object file. Summary: This is the follow-up patch for http://reviews.llvm.org/D19436 * Update the discriminator reading algorithm to match the assignment algorithm. * Add test to cover the new algorithm. Reviewers: dnovillo, echristo, dblaikie Subscribers: danielcdh, dblaikie, echristo, llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19522 llvm-svn: 267945
2016-04-29 06:09:37 +08:00
;
; Generated from:
;
; #1 void foo(int, int);
; #2 int bar();
; #3 void baz() {
; #4 foo/*discriminator 1*/(bar(),
; #5 bar());bar()/*discriminator 1*/;
; #6 }
;
; The intent is to test discriminator 1 generated for both line #4 and #5.
; The instruction sequence in the final binary is:
; line 4 discriminator 0
; line 5 discriminator 0
; line 4 discriminator 1
; line 5 discriminator 1
; We need to ensure that the discriminators for the last two instructions
; are both 1.
; Function Attrs: uwtable
define void @_Z3bazv() #0 !dbg !6 {
%1 = call i32 @_Z3barv(), !dbg !9
%2 = call i32 @_Z3barv(), !dbg !10
call void @_Z3fooii(i32 %1, i32 %2), !dbg !11
%3 = call i32 @_Z3barv(), !dbg !13
ret void, !dbg !14
}
declare void @_Z3fooii(i32, i32) #1
declare i32 @_Z3barv() #1
Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351
2019-12-25 07:52:21 +08:00
attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
Read discriminators correctly from object file. Summary: This is the follow-up patch for http://reviews.llvm.org/D19436 * Update the discriminator reading algorithm to match the assignment algorithm. * Add test to cover the new algorithm. Reviewers: dnovillo, echristo, dblaikie Subscribers: danielcdh, dblaikie, echristo, llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19522 llvm-svn: 267945
2016-04-29 06:09:37 +08:00
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
!llvm.ident = !{!5}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 267219)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
!1 = !DIFile(filename: "test.cc", directory: ".")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{!"clang version 3.9.0 (trunk 267219)"}
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. In order to set breakpoints on labels and list source code around labels, we need collect debug information for labels, i.e., label name, the function label belong, line number in the file, and the address label located. In order to keep these information in LLVM IR and to allow backend to generate debug information correctly. We create a new kind of metadata for labels, DILabel. The format of DILabel is !DILabel(scope: !1, name: "foo", file: !2, line: 3) We hope to keep debug information as much as possible even the code is optimized. So, we create a new kind of intrinsic for label metadata to avoid the metadata is eliminated with basic block. The intrinsic will keep existing if we keep it from optimized out. The format of the intrinsic is llvm.dbg.label(metadata !1) It has only one argument, that is the DILabel metadata. The intrinsic will follow the label immediately. Backend could get the label metadata through the intrinsic's parameter. We also create DIBuilder API for labels to be used by Frontend. Frontend could use createLabel() to allocate DILabel objects, and use insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR. Differential Revision: https://reviews.llvm.org/D45024 Patch by Hsiangkai Wang. llvm-svn: 331841
2018-05-09 10:40:45 +08:00
!6 = distinct !DISubprogram(name: "baz", linkageName: "_Z3bazv", scope: !1, file: !1, line: 3, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
Read discriminators correctly from object file. Summary: This is the follow-up patch for http://reviews.llvm.org/D19436 * Update the discriminator reading algorithm to match the assignment algorithm. * Add test to cover the new algorithm. Reviewers: dnovillo, echristo, dblaikie Subscribers: danielcdh, dblaikie, echristo, llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19522 llvm-svn: 267945
2016-04-29 06:09:37 +08:00
!7 = !DISubroutineType(types: !8)
!8 = !{null}
!9 = !DILocation(line: 4, column: 7, scope: !6)
!10 = !DILocation(line: 5, column: 14, scope: !6)
!11 = !DILocation(line: 4, column: 3, scope: !12)
!12 = !DILexicalBlockFile(scope: !6, file: !1, discriminator: 1)
!13 = !DILocation(line: 5, column: 21, scope: !12)
!14 = !DILocation(line: 6, column: 1, scope: !6)
; CHECK: Address Line Column File ISA Discriminator Flags
; CHECK: ------------------ ------ ------ ------ --- ------------- -------------
; CHECK: {{.*}} 4 3 1 0 1 {{.*}}
; CHECK: {{.*}} 5 21 1 0 1 {{.*}}