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RedBear-OS/local/recipes/dev/libclc/source/llvm/test/Linker/subprogram-linkonce-weak.ll
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vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

167 lines
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LLVM
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; 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: object-emission
;
; Bug 47131
; XFAIL: target=sparc{{.*}}
;
; 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.
; 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 0 is_stmt prologue_end
; DWLW-LABEL: file_names[ 1]:
; DWLW-NEXT: name: "foo.c"
; DWLW: 52 0 1 0 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 0 is_stmt prologue_end
; DWWL-LABEL: file_names[ 1]:
; DWWL-NEXT: name: "bar.c"
; DWWL: 2 0 1 0 0 0 is_stmt prologue_end
; DWWL-NOT: prologue_end
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