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| author | Kenneth Uildriks <kennethuil@gmail.com> | 2010-10-09 22:06:36 +0000 |
|---|---|---|
| committer | Kenneth Uildriks <kennethuil@gmail.com> | 2010-10-09 22:06:36 +0000 |
| commit | 74fa7327d690e6ceda6ce77e4e5b8ef75cb12538 (patch) | |
| tree | 7ccda8d95ec34025c4695626a629f0a0d6ff2e25 /test/Transforms | |
| parent | ea1fe2c0a79e7984da5d4fbd538a0bdb2cd1d149 (diff) | |
| download | external_llvm-74fa7327d690e6ceda6ce77e4e5b8ef75cb12538.zip external_llvm-74fa7327d690e6ceda6ce77e4e5b8ef75cb12538.tar.gz external_llvm-74fa7327d690e6ceda6ce77e4e5b8ef75cb12538.tar.bz2 | |
Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116158 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/PartialSpecialize/heuristics.ll | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/Transforms/PartialSpecialize/heuristics.ll b/test/Transforms/PartialSpecialize/heuristics.ll new file mode 100644 index 0000000..5ccf9ad --- /dev/null +++ b/test/Transforms/PartialSpecialize/heuristics.ll @@ -0,0 +1,49 @@ +; If there are not enough callsites for a particular specialization to +; justify its existence, the specialization shouldn't be created. +; +; RUN: opt -S -partialspecialization -disable-inlining %s | FileCheck %s +declare void @callback1() +declare void @callback2() + +declare void @othercall() + +define internal void @UseCallback(void()* %pCallback) { + call void %pCallback() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + call void @othercall() + ret void +} + +define void @foo(void()* %pNonConstCallback) +{ +Entry: +; CHECK: Entry +; CHECK-NOT: call void @UseCallback(void ()* @callback1) +; CHECK: call void @UseCallback(void ()* @callback2) +; CHECK-NEXT: call void @UseCallback(void ()* @callback2) +; CHECK-NEXT: ret void + call void @UseCallback(void()* @callback1) + call void @UseCallback(void()* @callback1) + call void @UseCallback(void()* @callback1) + call void @UseCallback(void()* @callback1) + call void @UseCallback(void()* @callback2) + call void @UseCallback(void()* @callback2) + + ret void +} |