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