diff options
| author | Nick Lewycky <nicholas@mxc.ca> | 2010-01-23 19:19:34 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2010-01-23 19:19:34 +0000 |
| commit | dbeecede809c1bffb016e48674622c5e8cb75a0c (patch) | |
| tree | 556c6a94a4086d041b146f7c1938a9adef9b1424 /test | |
| parent | 2dd7657a5b063e6f77c34f418b7e23654b6fe4a0 (diff) | |
| download | llvm-dbeecede809c1bffb016e48674622c5e8cb75a0c.tar.gz llvm-dbeecede809c1bffb016e48674622c5e8cb75a0c.tar.bz2 llvm-dbeecede809c1bffb016e48674622c5e8cb75a0c.tar.xz | |
Teach DAE that even though it can't modify the function signature of an
externally visible function, it can still find all callers of it and replace
the parameters to a dead argument with undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94322 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/DeadArgElim/deadexternal.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/Transforms/DeadArgElim/deadexternal.ll b/test/Transforms/DeadArgElim/deadexternal.ll new file mode 100644 index 0000000000..84341781da --- /dev/null +++ b/test/Transforms/DeadArgElim/deadexternal.ll @@ -0,0 +1,12 @@ +; RUN: opt -deadargelim -S %s | FileCheck %s + +define void @test(i32) { + ret void +} + +define void @foo() { + call void @test(i32 0) + ret void +; CHECK: @foo +; CHECK: i32 undef +} |