RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 03:02:36 +01:00
Code Issues Projects Releases Wiki Activity

LTO: Hash type identifier resolutions for WholeProgramDevirt.

Browse Source 
Differential Revision: https://reviews.llvm.org/D30555

llvm-svn: 297514
This commit is contained in:
Peter Collingbourne 2017-03-10 21:37:10 +00:00
parent a48c2d285c
commit 1f89d06175
5 changed files with 74 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/LTO/LTO.cpp
View File

@ -189,6 +189,22 @@ static void computeCacheKey(
AddUnsigned(S.TTRes.TheKind);
AddUnsigned(S.TTRes.SizeM1BitWidth);
AddUint64(S.WPDRes.size());
for (auto &WPD : S.WPDRes) {
AddUnsigned(WPD.first);
AddUnsigned(WPD.second.TheKind);
AddString(WPD.second.SingleImplName);
AddUint64(WPD.second.ResByArg.size());
for (auto &ByArg : WPD.second.ResByArg) {
AddUint64(ByArg.first.size());
for (uint64_t Arg : ByArg.first)
AddUint64(Arg);
AddUnsigned(ByArg.second.TheKind);
AddUint64(ByArg.second.Info);
}
}
};
// Include the hash for all type identifiers used by this module.

6
test/ThinLTO/X86/Inputs/cache-typeid-resolutions-import.ll
View File

@ -6,4 +6,10 @@ define i1 @importf1(i8* %p) {
ret i1 %x
}
define i1 @importf2(i8* %p) {
%x = call i1 @f2(i8* %p)
ret i1 %x
}
declare i1 @f1(i8* %p)
declare i1 @f2(i8* %p)

10
test/ThinLTO/X86/Inputs/cache-typeid-resolutions2.ll Normal file
View File

@ -0,0 +1,10 @@
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@vt2 = constant i1 (i8*)* @vf2, !type !0
define internal i1 @vf2(i8* %this) {
ret i1 0
}
!0 = !{i32 0, !"typeid2"}

15
test/ThinLTO/X86/Inputs/cache-typeid-resolutions3.ll Normal file
View File

@ -0,0 +1,15 @@
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@vt2a = constant i1 (i8*)* @vf2a, !type !0
@vt2b = constant i1 (i8*)* @vf2b, !type !0
define internal i1 @vf2a(i8* %this) {
ret i1 0
}
define internal i1 @vf2b(i8* %this) {
ret i1 1
}
!0 = !{i32 0, !"typeid2"}

29
test/ThinLTO/X86/cache-typeid-resolutions.ll
View File

@ -2,15 +2,26 @@
; RUN: opt -module-hash -module-summary %S/Inputs/cache-typeid-resolutions-import.ll -o %t-import.bc
; RUN: llvm-as -o %t1.bc %S/Inputs/cache-typeid-resolutions1.ll
; RUN: llvm-as -o %t2.bc %S/Inputs/cache-typeid-resolutions2.ll
; RUN: llvm-as -o %t3.bc %S/Inputs/cache-typeid-resolutions3.ll
; Two resolutions for typeid1: Unsat, Single
; where both t and t-import are sensitive to typeid1's resolution
; so 4 distinct objects in total.
; RUN: rm -rf %t.cache
; RUN: llvm-lto2 -o %t.o %t.bc %t-import.bc -cache-dir %t.cache -r=%t.bc,f1,plx -r=%t-import.bc,importf1,plx -r=%t-import.bc,f1,lx
; RUN: llvm-lto2 -o %t.o %t.bc %t-import.bc %t1.bc -cache-dir %t.cache -r=%t.bc,f1,plx -r=%t-import.bc,importf1,plx -r=%t-import.bc,f1,lx -r=%t1.bc,vt1,plx
; RUN: llvm-lto2 -o %t.o %t.bc %t-import.bc -cache-dir %t.cache -r=%t.bc,f1,plx -r=%t.bc,f2,plx -r=%t-import.bc,importf1,plx -r=%t-import.bc,f1,lx -r=%t-import.bc,importf2,plx -r=%t-import.bc,f2,lx
; RUN: llvm-lto2 -o %t.o %t.bc %t-import.bc %t1.bc -cache-dir %t.cache -r=%t.bc,f1,plx -r=%t.bc,f2,plx -r=%t-import.bc,importf1,plx -r=%t-import.bc,f1,lx -r=%t-import.bc,importf2,plx -r=%t-import.bc,f2,lx -r=%t1.bc,vt1,plx
; RUN: ls %t.cache | count 4
; Three resolutions for typeid2: Indir, SingleImpl, UniqueRetVal
; where both t and t-import are sensitive to typeid2's resolution
; so 6 distinct objects in total.
; RUN: rm -rf %t.cache
; RUN: llvm-lto2 -o %t.o %t.bc %t-import.bc -cache-dir %t.cache -r=%t.bc,f1,plx -r=%t.bc,f2,plx -r=%t-import.bc,importf1,plx -r=%t-import.bc,f1,lx -r=%t-import.bc,importf2,plx -r=%t-import.bc,f2,lx
; RUN: llvm-lto2 -o %t.o %t.bc %t-import.bc %t2.bc -cache-dir %t.cache -r=%t.bc,f1,plx -r=%t.bc,f2,plx -r=%t2.bc,vt2,plx -r=%t-import.bc,importf1,plx -r=%t-import.bc,f1,lx -r=%t-import.bc,importf2,plx -r=%t-import.bc,f2,lx
; RUN: llvm-lto2 -o %t.o %t.bc %t-import.bc %t3.bc -cache-dir %t.cache -r=%t.bc,f1,plx -r=%t.bc,f2,plx -r=%t3.bc,vt2a,plx -r=%t3.bc,vt2b,plx -r=%t-import.bc,importf1,plx -r=%t-import.bc,f1,lx -r=%t-import.bc,importf2,plx -r=%t-import.bc,f2,lx
; RUN: ls %t.cache | count 6
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@ -19,4 +30,18 @@ define i1 @f1(i8* %p) {
ret i1 %x
}
define i1 @f2(i8* %obj) {
%vtableptr = bitcast i8* %obj to [3 x i8*]**
%vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
%vtablei8 = bitcast [3 x i8*]* %vtable to i8*
%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid2")
call void @llvm.assume(i1 %p)
%fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0
%fptr = load i8*, i8** %fptrptr
%fptr_casted = bitcast i8* %fptr to i1 (i8*)*
%result = call i1 %fptr_casted(i8* %obj)
ret i1 %result
}
declare i1 @llvm.type.test(i8*, metadata)
declare void @llvm.assume(i1)