From 187c774a7650e4bbbaac175cb6509f709edba593 Mon Sep 17 00:00:00 2001 From: Matt Arsenault Date: Tue, 1 Oct 2013 18:05:30 +0000 Subject: Don't merge tiny functions. It's silly to merge functions like these: define void @foo(i32 %x) { ret void } define void @bar(i32 %x) { ret void } to get define void @bar(i32) { tail call void @foo(i32 %0) ret void } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191786 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/MergeFunc/merge-ptr-and-int.ll | 13 +++++++++++-- test/Transforms/MergeFunc/too-small.ll | 14 ++++++++++++++ 2 files changed, 25 insertions(+), 2 deletions(-) create mode 100644 test/Transforms/MergeFunc/too-small.ll (limited to 'test/Transforms') diff --git a/test/Transforms/MergeFunc/merge-ptr-and-int.ll b/test/Transforms/MergeFunc/merge-ptr-and-int.ll index 7a178a2..4e887ce 100644 --- a/test/Transforms/MergeFunc/merge-ptr-and-int.ll +++ b/test/Transforms/MergeFunc/merge-ptr-and-int.ll @@ -1,18 +1,27 @@ ; RUN: opt -S -mergefunc < %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" -; CHECK-LABEL: f0 + +declare void @stuff() + +; CHECK-LABEL: @f0( define void @f0(i64 %p0) { entry: + call void @stuff() + call void @stuff() + call void @stuff() ret void } -; CHECK-LABEL: f1 +; CHECK-LABEL: @f1( ; CHECK: ptrtoint i64* ; CHECK: tail call void @f0(i64 define void @f1(i64* %p0) { entry: + call void @stuff() + call void @stuff() + call void @stuff() ret void } diff --git a/test/Transforms/MergeFunc/too-small.ll b/test/Transforms/MergeFunc/too-small.ll new file mode 100644 index 0000000..1a526ff --- /dev/null +++ b/test/Transforms/MergeFunc/too-small.ll @@ -0,0 +1,14 @@ +; RUN: opt -S -mergefunc < %s | FileCheck %s + +define void @foo(i32 %x) { +; CHECK-LABEL: @foo( +; CHECK-NOT: call + ret void +} + +define void @bar(i32 %x) { +; CHECK-LABEL: @bar( +; CHECK-NOT: call + ret void +} + -- cgit v1.1