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| author | Nick Lewycky <nicholas@mxc.ca> | 2008-11-02 05:52:50 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2008-11-02 05:52:50 +0000 |
| commit | 579a0246616d76bc536de0e41edf069d091604be (patch) | |
| tree | 2d39570a32af93de6f9d8e9b15240f4b9eb2744a /test | |
| parent | 8e39432ea9751917d5cef1f18f6c32382c384d58 (diff) | |
| download | llvm-579a0246616d76bc536de0e41edf069d091604be.tar.gz llvm-579a0246616d76bc536de0e41edf069d091604be.tar.bz2 llvm-579a0246616d76bc536de0e41edf069d091604be.tar.xz | |
Add a new MergeFunctions pass. It finds identical functions and merges them.
This triggers only 60 times in llvm-test (look at .llvm.bc, not .linked.rbc)
and so it probably wont be turned on by default. Also, may of those are likely
to go away when PR2973 is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58557 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/MergeFunc/dg.exp | 3 | ||||
| -rw-r--r-- | test/Transforms/MergeFunc/phi-speculation1.ll | 29 | ||||
| -rw-r--r-- | test/Transforms/MergeFunc/phi-speculation2.ll | 29 |
3 files changed, 61 insertions, 0 deletions
diff --git a/test/Transforms/MergeFunc/dg.exp b/test/Transforms/MergeFunc/dg.exp new file mode 100644 index 0000000000..f2005891a5 --- /dev/null +++ b/test/Transforms/MergeFunc/dg.exp @@ -0,0 +1,3 @@ +load_lib llvm.exp + +RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,c,cpp}]] diff --git a/test/Transforms/MergeFunc/phi-speculation1.ll b/test/Transforms/MergeFunc/phi-speculation1.ll new file mode 100644 index 0000000000..89f31e3ada --- /dev/null +++ b/test/Transforms/MergeFunc/phi-speculation1.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | opt -mergefunc -stats | not grep {functions merged} + +define i32 @foo1(i32 %x) { +entry: + %A = add i32 %x, 1 + %B = call i32 @foo1(i32 %A) + br label %loop +loop: + %C = phi i32 [%B, %entry], [%D, %loop] + %D = add i32 %x, 2 + %E = icmp ugt i32 %D, 10000 + br i1 %E, label %loopexit, label %loop +loopexit: + ret i32 %D +} + +define i32 @foo2(i32 %x) { +entry: + %0 = add i32 %x, 1 + %1 = call i32 @foo2(i32 %0) + br label %loop +loop: + %2 = phi i32 [%1, %entry], [%3, %loop] + %3 = add i32 %2, 2 + %4 = icmp ugt i32 %3, 10000 + br i1 %4, label %loopexit, label %loop +loopexit: + ret i32 %3 +} diff --git a/test/Transforms/MergeFunc/phi-speculation2.ll b/test/Transforms/MergeFunc/phi-speculation2.ll new file mode 100644 index 0000000000..1649100200 --- /dev/null +++ b/test/Transforms/MergeFunc/phi-speculation2.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | opt -mergefunc -stats |& grep {functions merged} + +define i32 @foo1(i32 %x) { +entry: + %A = add i32 %x, 1 + %B = call i32 @foo1(i32 %A) + br label %loop +loop: + %C = phi i32 [%B, %entry], [%D, %loop] + %D = add i32 %C, 2 + %E = icmp ugt i32 %D, 10000 + br i1 %E, label %loopexit, label %loop +loopexit: + ret i32 %D +} + +define i32 @foo2(i32 %x) { +entry: + %0 = add i32 %x, 1 + %1 = call i32 @foo2(i32 %0) + br label %loop +loop: + %2 = phi i32 [%1, %entry], [%3, %loop] + %3 = add i32 %2, 2 + %4 = icmp ugt i32 %3, 10000 + br i1 %4, label %loopexit, label %loop +loopexit: + ret i32 %3 +} |