mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 11:02:59 +02:00
fce7fffc39
Summary: Keep track of all methods for which we have devirtualized at least one call and then print them sorted alphabetically. That allows to avoid duplicates and also makes the order deterministic. Add optimization names into the remarks, so that it's easier to understand how has each method been devirtualized. Fix a bug when wrong methods could have been reported for tryVirtualConstProp. Reviewers: kcc, mehdi_amini Differential Revision: https://reviews.llvm.org/D23297 llvm-svn: 278389
48 lines
2.0 KiB
LLVM
48 lines
2.0 KiB
LLVM
; RUN: opt -S -wholeprogramdevirt -pass-remarks=wholeprogramdevirt %s 2>&1 | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; CHECK: remark: devirt-single.cc:30:32: single-impl: devirtualized a call to vf
|
|
; CHECK: remark: devirt-single.cc:13:0: devirtualized vf
|
|
; CHECK-NOT: devirtualized
|
|
|
|
@vt1 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !8
|
|
@vt2 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !8
|
|
|
|
define void @vf(i8* %this) #0 !dbg !7 {
|
|
ret void
|
|
}
|
|
|
|
; CHECK: define void @call
|
|
define void @call(i8* %obj) #1 !dbg !5 {
|
|
%vtableptr = bitcast i8* %obj to [1 x i8*]**
|
|
%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
|
|
%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
|
|
%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
|
|
call void @llvm.assume(i1 %p)
|
|
%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
|
|
%fptr = load i8*, i8** %fptrptr
|
|
%fptr_casted = bitcast i8* %fptr to void (i8*)*
|
|
; CHECK: call void @vf(
|
|
call void %fptr_casted(i8* %obj), !dbg !6
|
|
ret void
|
|
}
|
|
|
|
declare i1 @llvm.type.test(i8*, metadata)
|
|
declare void @llvm.assume(i1)
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!2, !3}
|
|
!llvm.ident = !{!4}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 4.0.0 (trunk 278098)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
|
|
!1 = !DIFile(filename: "devirt-single.cc", directory: ".")
|
|
!2 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!3 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!4 = !{!"clang version 4.0.0 (trunk 278098)"}
|
|
!5 = distinct !DISubprogram(name: "call", linkageName: "_Z4callPv", scope: !1, file: !1, line: 29, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: false, unit: !0)
|
|
!6 = !DILocation(line: 30, column: 32, scope: !5)
|
|
!7 = distinct !DISubprogram(name: "vf", linkageName: "_ZN3vt12vfEv", scope: !1, file: !1, line: 13, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: false, unit: !0)
|
|
!8 = !{i32 0, !"typeid"}
|