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8e66c2eabb
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312970 91177308-0d34-0410-b5e6-96231b3b80d8
161 lines
6.9 KiB
LLVM
161 lines
6.9 KiB
LLVM
; RUN: llvm-link %s %S/Inputs/subprogram-linkonce-weak.ll -S -o %t1
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; RUN: FileCheck %s -check-prefix=LW -check-prefix=CHECK <%t1
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; RUN: llvm-link %S/Inputs/subprogram-linkonce-weak.ll %s -S -o %t2
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; RUN: FileCheck %s -check-prefix=WL -check-prefix=CHECK <%t2
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; REQUIRES: default_triple
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; This testcase tests the following flow:
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; - File A defines a linkonce version of @foo which has inlined into @bar.
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; - File B defines a weak version of @foo (different definition).
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; - Linkage rules state File B version of @foo wins.
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; - @bar still has inlined debug info related to the linkonce @foo.
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;
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; This should fix PR22792, although the testcase was hand-written. There's a
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; RUN line with a crasher for llc at the end with checks for the DWARF output.
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; The LW prefix means linkonce (this file) first, then weak (the other file).
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; The WL prefix means weak (the other file) first, then linkonce (this file).
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; We'll see @bar before @foo if this file is first.
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; LW: define i32 @bar({{.*}} !dbg ![[BARSP:[0-9]+]]
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; LW: %sum = add i32 %a, %b, !dbg ![[FOOINBAR:[0-9]+]]
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; LW: ret i32 %sum, !dbg ![[BARRET:[0-9]+]]
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; LW: define weak i32 @foo({{.*}} !dbg ![[WEAKFOOSP:[0-9]+]]
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; LW: %sum = call i32 @fastadd(i32 %a, i32 %b), !dbg ![[FOOCALL:[0-9]+]]
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; LW: ret i32 %sum, !dbg ![[FOORET:[0-9]+]]
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; We'll see @foo before @bar if this file is second.
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; WL: define weak i32 @foo({{.*}} !dbg ![[WEAKFOOSP:[0-9]+]]
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; WL: %sum = call i32 @fastadd(i32 %a, i32 %b), !dbg ![[FOOCALL:[0-9]+]]
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; WL: ret i32 %sum, !dbg ![[FOORET:[0-9]+]]
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; WL: define i32 @bar({{.*}} !dbg ![[BARSP:[0-9]+]]
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; WL: %sum = add i32 %a, %b, !dbg ![[FOOINBAR:[0-9]+]]
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; WL: ret i32 %sum, !dbg ![[BARRET:[0-9]+]]
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define i32 @bar(i32 %a, i32 %b) !dbg !3 {
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entry:
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%sum = add i32 %a, %b, !dbg !DILocation(line: 2, scope: !4,
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inlinedAt: !DILocation(line: 12, scope: !3))
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ret i32 %sum, !dbg !DILocation(line: 13, scope: !3)
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}
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define linkonce i32 @foo(i32 %a, i32 %b) !dbg !4 {
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entry:
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%sum = add i32 %a, %b, !dbg !DILocation(line: 2, scope: !4)
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ret i32 %sum, !dbg !DILocation(line: 3, scope: !4)
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}
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!llvm.module.flags = !{!0}
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!0 = !{i32 2, !"Debug Info Version", i32 3}
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; CHECK-LABEL: !llvm.dbg.cu =
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; LW-SAME: !{![[LCU:[0-9]+]], ![[WCU:[0-9]+]]}
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; WL-SAME: !{![[WCU:[0-9]+]], ![[LCU:[0-9]+]]}
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!llvm.dbg.cu = !{!1}
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; LW: ![[LCU]] = distinct !DICompileUnit(
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; LW: ![[WCU]] = distinct !DICompileUnit(
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; LW: ![[BARSP]] = distinct !DISubprogram(name: "bar",{{.*}} unit: ![[LCU]]
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; LW: ![[FOOINBAR]] = !DILocation(line: 2, scope: ![[FOOSP:.*]], inlinedAt: ![[BARIA:[0-9]+]])
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; LW: ![[FOOSP]] = distinct !DISubprogram(name: "foo",{{.*}} unit: ![[LCU]]
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; LW: ![[BARIA]] = !DILocation(line: 12, scope: ![[BARSP]])
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; LW: ![[BARRET]] = !DILocation(line: 13, scope: ![[BARSP]])
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; LW: ![[WEAKFOOSP]] = distinct !DISubprogram(name: "foo",{{.*}} unit: ![[WCU]]
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; LW: ![[FOOCALL]] = !DILocation(line: 52, scope: ![[WEAKFOOSP]])
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; LW: ![[FOORET]] = !DILocation(line: 53, scope: ![[WEAKFOOSP]])
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; Same as above, but reordered.
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; WL: ![[WCU]] = distinct !DICompileUnit(
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; WL: ![[LCU]] = distinct !DICompileUnit(
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; WL: ![[WEAKFOOSP]] = distinct !DISubprogram(name: "foo",{{.*}} unit: ![[WCU]]
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; WL: ![[FOOCALL]] = !DILocation(line: 52, scope: ![[WEAKFOOSP]])
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; WL: ![[FOORET]] = !DILocation(line: 53, scope: ![[WEAKFOOSP]])
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; WL: ![[BARSP]] = distinct !DISubprogram(name: "bar",{{.*}} unit: ![[LCU]]
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; WL: ![[FOOINBAR]] = !DILocation(line: 2, scope: ![[FOOSP:.*]], inlinedAt: ![[BARIA:[0-9]+]])
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; WL: ![[FOOSP]] = distinct !DISubprogram(name: "foo",{{.*}} unit: ![[LCU]]
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; WL: ![[BARIA]] = !DILocation(line: 12, scope: ![[BARSP]])
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; WL: ![[BARRET]] = !DILocation(line: 13, scope: ![[BARSP]])
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!1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, emissionKind: FullDebug)
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!2 = !DIFile(filename: "bar.c", directory: "/path/to/dir")
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!3 = distinct !DISubprogram(file: !2, scope: !2, line: 11, name: "bar", type: !5, unit: !1)
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!4 = distinct !DISubprogram(file: !2, scope: !2, line: 1, name: "foo", type: !5, unit: !1)
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!5 = !DISubroutineType(types: !{})
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; Crasher for llc.
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; REQUIRES: object-emission
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; RUN: %llc_dwarf -filetype=obj -O0 %t1 -o %t1.o
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; RUN: llvm-dwarfdump %t1.o --all | FileCheck %s -check-prefix=DWLW -check-prefix=DW
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; RUN: %llc_dwarf -filetype=obj -O0 %t2 -o %t2.o
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; RUN: llvm-dwarfdump %t2.o --all | FileCheck %s -check-prefix=DWWL -check-prefix=DW
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; Check that the debug info for the discarded linkonce version of @foo doesn't
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; reference any code, and that the other subprograms look correct.
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; DW-LABEL: .debug_info contents:
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; DWLW: DW_TAG_compile_unit
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; DWLW: DW_AT_name {{.*}}"bar.c"
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; DWLW: DW_TAG_subprogram
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; DWLW-NOT: DW_AT_low_pc
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; DWLW-NOT: DW_AT_high_pc
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; DWLW: DW_AT_name {{.*}}foo
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; DWLW: DW_AT_decl_file {{.*}}"/path/to/dir{{/|\\}}bar.c"
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; DWLW: DW_AT_decl_line {{.*}}(1)
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; DWLW: DW_TAG_subprogram
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; DWLW: DW_AT_low_pc
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; DWLW: DW_AT_high_pc
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; DWLW: DW_AT_name {{.*}}bar
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; DWLW: DW_AT_decl_file {{.*}}"/path/to/dir{{/|\\}}bar.c"
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; DWLW: DW_AT_decl_line {{.*}}(11)
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; DWLW: DW_TAG_inlined_subroutine
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; DWLW: DW_AT_abstract_origin
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; DWLW: DW_TAG_compile_unit
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; DWLW: DW_AT_name {{.*}}"foo.c"
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; DWLW: DW_TAG_subprogram
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; DWLW: DW_AT_low_pc
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; DWLW: DW_AT_high_pc
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; DWLW: DW_AT_name {{.*}}foo
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; DWLW: DW_AT_decl_file {{.*}}"/path/to/dir{{/|\\}}foo.c"
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; DWLW: DW_AT_decl_line {{.*}}(51)
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; The DWARF output is already symmetric (just reordered).
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; DWWL: DW_TAG_compile_unit
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; DWWL: DW_AT_name {{.*}}"foo.c"
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; DWWL: DW_TAG_subprogram
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; DWWL: DW_AT_low_pc
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; DWWL: DW_AT_high_pc
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; DWWL: DW_AT_name {{.*}}foo
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; DWWL: DW_AT_decl_file {{.*}}"/path/to/dir{{/|\\}}foo.c"
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; DWWL: DW_AT_decl_line {{.*}}(51)
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; DWWL: DW_TAG_compile_unit
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; DWWL: DW_AT_name {{.*}}"bar.c"
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; DWWL: DW_TAG_subprogram
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; DWWL-NOT: DW_AT_low_pc
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; DWWL-NOT: DW_AT_high_pc
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; DWWL: DW_AT_name {{.*}}foo
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; DWWL: DW_AT_decl_file {{.*}}"/path/to/dir{{/|\\}}bar.c"
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; DWWL: DW_AT_decl_line {{.*}}(1)
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; DWWL: DW_TAG_subprogram
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; DWWL: DW_AT_low_pc
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; DWWL: DW_AT_high_pc
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; DWWL: DW_AT_name {{.*}}bar
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; DWWL: DW_AT_decl_file {{.*}}"/path/to/dir{{/|\\}}bar.c"
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; DWWL: DW_AT_decl_line {{.*}}(11)
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; DWWL: DW_TAG_inlined_subroutine
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; DWWL: DW_AT_abstract_origin
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; DW-LABEL: .debug_line contents:
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; Check that we have the right things in the line table as well.
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; DWLW-LABEL: file_names[{{ *}}1]{{.*}} bar.c
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; DWLW: 2 0 1 0 0 is_stmt prologue_end
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; DWLW-LABEL: file_names[{{ *}}1]{{.*}} foo.c
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; DWLW: 52 0 1 0 0 is_stmt prologue_end
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; DWLW-NOT: prologue_end
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; DWWL-LABEL: file_names[{{ *}}1]{{.*}} foo.c
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; DWWL: 52 0 1 0 0 is_stmt prologue_end
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; DWWL-LABEL: file_names[{{ *}}1]{{.*}} bar.c
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; DWWL: 2 0 1 0 0 is_stmt prologue_end
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; DWWL-NOT: prologue_end
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