RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-21 03:53:04 +02:00
Code Issues Projects Releases Wiki Activity
fe32b980b3
llvm-mirror/test/Linker/subprogram-linkonce-weak.ll
Mehdi Amini fe32b980b3 Make the default triple optional by allowing an empty string 
When building LLVM as a (potentially dynamic) library that can be linked against
by multiple compilers, the default triple is not really meaningful.
We allow to explicitely set it to an empty string when configuring LLVM.
In this case, said "target independent" tests in the test suite that are using
the default triple are disabled by matching the newly available feature
"default_triple".

Reviewers: probinson, echristo
Differential Revision: http://reviews.llvm.org/D12660

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 247775
2015-09-16 05:34:32 +00:00

173 lines
7.4 KiB
LLVM
Raw Blame History

; 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-LABEL: define i32 @bar(
; LW: %sum = add i32 %a, %b, !dbg ![[FOOINBAR:[0-9]+]]
; LW: ret i32 %sum, !dbg ![[BARRET:[0-9]+]]
; LW-LABEL: define weak i32 @foo(
; 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-LABEL: define weak i32 @foo(
; WL: %sum = call i32 @fastadd(i32 %a, i32 %b), !dbg ![[FOOCALL:[0-9]+]]
; WL: ret i32 %sum, !dbg ![[FOORET:[0-9]+]]
; WL-LABEL: define i32 @bar(
; 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) {
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) {
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({{.*}} subprograms: ![[LSPs:[0-9]+]]
; LW: ![[LSPs]] = !{![[BARSP:[0-9]+]], ![[FOOSP:[0-9]+]]}
; LW: ![[BARSP]] = distinct !DISubprogram(name: "bar",
; LW-SAME: function: i32 (i32, i32)* @bar
; LW: ![[FOOSP]] = distinct !DISubprogram(name: "foo",
; LW-NOT: function:
; LW-SAME: ){{$}}
; LW: ![[WCU]] = distinct !DICompileUnit({{.*}} subprograms: ![[WSPs:[0-9]+]]
; LW: ![[WSPs]] = !{![[WEAKFOOSP:[0-9]+]]}
; LW: ![[WEAKFOOSP]] = distinct !DISubprogram(name: "foo",
; LW-SAME: function: i32 (i32, i32)* @foo
; LW: ![[FOOINBAR]] = !DILocation(line: 2, scope: ![[FOOSP]], inlinedAt: ![[BARIA:[0-9]+]])
; LW: ![[BARIA]] = !DILocation(line: 12, scope: ![[BARSP]])
; LW: ![[BARRET]] = !DILocation(line: 13, scope: ![[BARSP]])
; LW: ![[FOOCALL]] = !DILocation(line: 52, scope: ![[WEAKFOOSP]])
; LW: ![[FOORET]] = !DILocation(line: 53, scope: ![[WEAKFOOSP]])
; Same as above, but reordered.
; WL: ![[WCU]] = distinct !DICompileUnit({{.*}} subprograms: ![[WSPs:[0-9]+]]
; WL: ![[WSPs]] = !{![[WEAKFOOSP:[0-9]+]]}
; WL: ![[WEAKFOOSP]] = distinct !DISubprogram(name: "foo",
; WL-SAME: function: i32 (i32, i32)* @foo
; WL: ![[LCU]] = distinct !DICompileUnit({{.*}} subprograms: ![[LSPs:[0-9]+]]
; WL: ![[LSPs]] = !{![[BARSP:[0-9]+]], ![[FOOSP:[0-9]+]]}
; WL: ![[BARSP]] = distinct !DISubprogram(name: "bar",
; WL-SAME: function: i32 (i32, i32)* @bar
; WL: ![[FOOSP]] = distinct !DISubprogram(name: "foo",
; Note, for symmetry, this should be "NOT: function:" and "SAME: ){{$}}".
; WL-SAME: function: i32 (i32, i32)* @foo
; WL: ![[FOOCALL]] = !DILocation(line: 52, scope: ![[WEAKFOOSP]])
; WL: ![[FOORET]] = !DILocation(line: 53, scope: ![[WEAKFOOSP]])
; WL: ![[FOOINBAR]] = !DILocation(line: 2, scope: ![[FOOSP]], inlinedAt: ![[BARIA:[0-9]+]])
; WL: ![[BARIA]] = !DILocation(line: 12, scope: ![[BARSP]])
; WL: ![[BARRET]] = !DILocation(line: 13, scope: ![[BARSP]])
!1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, subprograms: !{!3, !4}, emissionKind: 1)
!2 = !DIFile(filename: "bar.c", directory: "/path/to/dir")
!3 = distinct !DISubprogram(file: !2, scope: !2, line: 11, name: "bar", function: i32 (i32, i32)* @bar, type: !5)
!4 = distinct !DISubprogram(file: !2, scope: !2, line: 1, name: "foo", function: i32 (i32, i32)* @foo, type: !5)
!5 = !DISubroutineType(types: !{})
; Crasher for llc.
; REQUIRES: object-emission
; RUN: %llc_dwarf -filetype=obj -O0 %t1 -o %t1.o
; RUN: llvm-dwarfdump %t1.o -debug-dump=all | FileCheck %s -check-prefix=DWLW -check-prefix=DW
; RUN: %llc_dwarf -filetype=obj -O0 %t2 -o %t2.o
; RUN: llvm-dwarfdump %t2.o -debug-dump=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]{{.*}} bar.c
; DWLW: 2 0 1 0 0 is_stmt prologue_end
; DWLW-LABEL: file_names[{{ *}}1]{{.*}} foo.c
; DWLW: 52 0 1 0 0 is_stmt prologue_end
; DWLW-NOT: prologue_end
; DWWL-LABEL: file_names[{{ *}}1]{{.*}} foo.c
; DWWL: 52 0 1 0 0 is_stmt prologue_end
; DWWL-LABEL: file_names[{{ *}}1]{{.*}} bar.c
; DWWL: 2 0 1 0 0 is_stmt prologue_end
; DWWL-NOT: prologue_end
Reference in New Issue View Git Blame Copy Permalink