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Reland [AlwaysInliner] Pass callee AAResults to InlineFunction() 

Test copied from noalias-calls.ll with small changes.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D89609
This commit is contained in:
Arthur Eubanks 2020-10-16 17:21:12 -07:00
parent e5766f25c6
commit 42f76e193b
2 changed files with 82 additions and 2 deletions
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5
llvm/lib/Transforms/IPO/AlwaysInliner.cpp
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@ -13,6 +13,7 @@
#include "llvm/Transforms/IPO/AlwaysInliner.h" #include "llvm/Transforms/IPO/AlwaysInliner.h"
#include "llvm/ADT/SetVector.h" #include "llvm/ADT/SetVector.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/AssumptionCache.h" #include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/InlineCost.h" #include "llvm/Analysis/InlineCost.h"
#include "llvm/Analysis/ProfileSummaryInfo.h" #include "llvm/Analysis/ProfileSummaryInfo.h"
@ -73,8 +74,8 @@ PreservedAnalyses AlwaysInlinerPass::run(Module &M,
&FAM.getResult<BlockFrequencyAnalysis>(*(CB->getCaller())), &FAM.getResult<BlockFrequencyAnalysis>(*(CB->getCaller())),
&FAM.getResult<BlockFrequencyAnalysis>(F)); &FAM.getResult<BlockFrequencyAnalysis>(F));
InlineResult Res = InlineResult Res = InlineFunction(
InlineFunction(*CB, IFI, /*CalleeAAR=*/nullptr, InsertLifetime); *CB, IFI, &FAM.getResult<AAManager>(F), InsertLifetime);
assert(Res.isSuccess() && "unexpected failure to inline"); assert(Res.isSuccess() && "unexpected failure to inline");
(void)Res; (void)Res;
Changed = true; Changed = true;

79
llvm/test/Transforms/Inline/noalias-calls-always.ll Normal file
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@ -0,0 +1,79 @@
; RUN: opt -aa-pipeline=basic-aa -passes=always-inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) #0
declare void @hey() #0
define void @hello(i8* noalias nocapture %a, i8* noalias nocapture readonly %c, i8* nocapture %b) #1 {
entry:
%l = alloca i8, i32 512, align 1
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 0)
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 0)
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 0)
call void @hey()
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %l, i8* align 16 %c, i64 16, i1 0)
ret void
}
define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #2 {
entry:
tail call void @hello(i8* %a, i8* %c, i8* %b)
ret void
}
define void @hello_cs(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #1 {
entry:
%l = alloca i8, i32 512, align 1
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 0)
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 0)
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 0)
call void @hey()
call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %l, i8* align 16 %c, i64 16, i1 0)
ret void
}
define void @foo_cs(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #2 {
entry:
tail call void @hello_cs(i8* noalias %a, i8* noalias %c, i8* %b)
ret void
}
; CHECK: define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b)
; CHECK: entry:
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 false) #4, !noalias !0
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 false) #4, !noalias !3
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 false) #4, !alias.scope !5
; CHECK: call void @hey() #4, !noalias !5
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %{{.*}}, i8* align 16 %c, i64 16, i1 false) #4, !noalias !3
; CHECK: ret void
; CHECK: }
; CHECK: define void @foo_cs(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b)
; CHECK: entry:
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 false) #4, !noalias !6
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 false) #4, !noalias !9
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 false) #4, !alias.scope !11
; CHECK: call void @hey() #4, !noalias !11
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %{{.*}}, i8* align 16 %c, i64 16, i1 false) #4, !noalias !9
; CHECK: ret void
; CHECK: }
attributes #0 = { nounwind argmemonly willreturn }
attributes #1 = { nounwind alwaysinline }
attributes #2 = { nounwind uwtable }
; CHECK: !0 = !{!1}
; CHECK: !1 = distinct !{!1, !2, !"hello: %c"}
; CHECK: !2 = distinct !{!2, !"hello"}
; CHECK: !3 = !{!4}
; CHECK: !4 = distinct !{!4, !2, !"hello: %a"}
; CHECK: !5 = !{!4, !1}
; CHECK: !6 = !{!7}
; CHECK: !7 = distinct !{!7, !8, !"hello_cs: %c"}
; CHECK: !8 = distinct !{!8, !"hello_cs"}
; CHECK: !9 = !{!10}
; CHECK: !10 = distinct !{!10, !8, !"hello_cs: %a"}
; CHECK: !11 = !{!10, !7}