forked from OSchip/llvm-project
70 lines
2.0 KiB
LLVM
70 lines
2.0 KiB
LLVM
; REQUIRES: x86
|
|
;; Ensure passing --plugin-opt=emit-llvm to lld, LTO should not emit
|
|
;; incomplete optimization remarks for dead functions.
|
|
|
|
; RUN: split-file %s %t.dir
|
|
; RUN: opt -module-summary %t.dir/main.ll -o %t1.o
|
|
; RUN: opt -module-summary %t.dir/other.ll -o %t2.o
|
|
|
|
; RUN: rm -f %t.yaml
|
|
; RUN: ld.lld --plugin-opt=emit-llvm --opt-remarks-filename %t.yaml %t1.o %t2.o -o %t
|
|
; RUN: FileCheck %s --check-prefix=REMARK < %t.yaml
|
|
|
|
; REMARK: Pass: lto
|
|
; REMARK-NEXT: Name: deadfunction
|
|
; REMARK-NEXT: DebugLoc: { File: test.c, Line: 4, Column: 0 }
|
|
; REMARK-NEXT: Function: dead2
|
|
; REMARK-NEXT: Args:
|
|
; REMARK-NEXT: - Function: dead2
|
|
; REMARK-NEXT: DebugLoc: { File: test.c, Line: 4, Column: 0 }
|
|
; REMARK-NEXT: - String: ' not added to the combined module '
|
|
|
|
#--- main.ll
|
|
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
define void @_start() {
|
|
call void @live1()
|
|
ret void
|
|
}
|
|
|
|
declare void @live1()
|
|
|
|
define void @live2() {
|
|
ret void
|
|
}
|
|
|
|
define void @dead2() !dbg !7 {
|
|
ret void
|
|
}
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!3, !4, !5}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, emissionKind: LineTablesOnly, enums: !2)
|
|
!1 = !DIFile(filename: "test.c", directory: "/")
|
|
!2 = !{}
|
|
!3 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!5 = !{i32 1, !"ThinLTO", i32 0}
|
|
!7 = distinct !DISubprogram(name: "dead2", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 4, isOptimized: false, unit: !0, retainedNodes: !2)
|
|
!8 = !DISubroutineType(types: !2)
|
|
|
|
#--- other.ll
|
|
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
define void @live1() {
|
|
call void @live2()
|
|
ret void
|
|
}
|
|
|
|
declare void @live2()
|
|
|
|
define void @dead1() {
|
|
call void @dead2()
|
|
ret void
|
|
}
|
|
|
|
declare void @dead2()
|