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[PartialInlining] Add more early filtering

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This is a follow up to the previous
inline cost patch for quicker filtering.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301959 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Xinliang David Li 2017-05-02 18:43:21 +00:00
parent 5c95b810cb
commit 1d482c01f6
2 changed files with 29 additions and 0 deletions
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10
lib/Transforms/IPO/PartialInlining.cpp
View File

@ -337,6 +337,16 @@ Function *PartialInlinerImpl::unswitchFunction(Function *F) {
if (F->hasAddressTaken())
return nullptr;
// Let inliner handle it
if (F->hasFnAttribute(Attribute::AlwaysInline))
return nullptr;
if (F->hasFnAttribute(Attribute::NoInline))
return nullptr;
if (PSI->isFunctionEntryCold(F))
return nullptr;
std::unique_ptr<FunctionOutliningInfo> OutliningInfo =
computeOutliningInfo(F);

19
test/Transforms/CodeExtractor/PartialInlineOptRemark.ll
View File

@ -64,6 +64,22 @@ bb2: ; preds = %bb1, %bb
ret i32 %tmp3, !dbg !19
}
define i32 @bar_cold(i32 %arg) local_unnamed_addr #3 !dbg !5 {
bb:
%tmp = icmp slt i32 %arg, 0, !dbg !7
br i1 %tmp, label %bb1, label %bb2, !dbg !8
bb1: ; preds = %bb
tail call void (...) @foo() #0, !dbg !9
tail call void (...) @foo() #0, !dbg !10
tail call void (...) @foo() #0, !dbg !11
br label %bb2, !dbg !18
bb2: ; preds = %bb1, %bb
%tmp3 = phi i32 [ 0, %bb1 ], [ 1, %bb ]
ret i32 %tmp3, !dbg !19
}
; Function Attrs: nounwind
declare void @foo(...) local_unnamed_addr #0
@ -73,16 +89,19 @@ bb:
; CHECK:remark{{.*}}bar partially inlined into dummy_caller
; CHECK-NOT:remark{{.*}}bar_noinline partially inlined into dummy_caller
; CHECK-NOT:remark{{.*}}bar_alwaysinline partially inlined into dummy_caller
; CHECK-NOT:remark{{.*}}bar_cold partially inlined into dummy_caller
; LIMIT-NOT:remark{{.*}}bar partially inlined into dummy_caller
%tmp = tail call i32 @bar(i32 %arg), !dbg !21
%tmp2 = tail call i32 @bar_noinline(i32 %arg), !dbg !21
%tmp3 = tail call i32 @bar_alwaysinline(i32 %arg), !dbg !21
%tmp4 = tail call i32 @bar_cold(i32 %arg), !dbg !21
ret i32 %tmp, !dbg !22
}
attributes #0 = { nounwind }
attributes #1 = { noinline nounwind }
attributes #2 = { alwaysinline nounwind }
attributes #3 = { cold nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3}