diff options
Diffstat (limited to 'release_23/test/Transforms/ScalarRepl/phinodepromote.ll')
| -rw-r--r-- | release_23/test/Transforms/ScalarRepl/phinodepromote.ll | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/release_23/test/Transforms/ScalarRepl/phinodepromote.ll b/release_23/test/Transforms/ScalarRepl/phinodepromote.ll deleted file mode 100644 index 4eb8743bd1cf..000000000000 --- a/release_23/test/Transforms/ScalarRepl/phinodepromote.ll +++ /dev/null @@ -1,34 +0,0 @@ -; RUN: llvm-as < %s | opt -simplifycfg -instcombine -mem2reg | llvm-dis | not grep alloca -; -; This tests to see if mem2reg can promote alloca instructions whose addresses -; are used by PHI nodes that are immediately loaded. The LLVM C++ front-end -; often generates code that looks like this (when it codegen's ?: exprs as -; lvalues), so handling this simple extension is quite useful. -; -; This testcase is what the following program looks like when it reaches -; instcombine: -; -; template<typename T> -; const T& max(const T& a1, const T& a2) { return a1 < a2 ? a1 : a2; } -; int main() { return max(0, 1); } -; -; This test checks to make sure the combination of instcombine and mem2reg -; perform the transformation. - -define i32 @main() { -entry: - %mem_tmp.0 = alloca i32 ; <i32*> [#uses=3] - %mem_tmp.1 = alloca i32 ; <i32*> [#uses=3] - store i32 0, i32* %mem_tmp.0 - store i32 1, i32* %mem_tmp.1 - %tmp.1.i = load i32* %mem_tmp.1 ; <i32> [#uses=1] - %tmp.3.i = load i32* %mem_tmp.0 ; <i32> [#uses=1] - %tmp.4.i = icmp sle i32 %tmp.1.i, %tmp.3.i ; <i1> [#uses=1] - br i1 %tmp.4.i, label %cond_true.i, label %cond_continue.i -cond_true.i: ; preds = %entry - br label %cond_continue.i -cond_continue.i: ; preds = %cond_true.i, %entry - %mem_tmp.i.0 = phi i32* [ %mem_tmp.1, %cond_true.i ], [ %mem_tmp.0, %entry ] ; <i32*> [#uses=1] - %tmp.3 = load i32* %mem_tmp.i.0 ; <i32> [#uses=1] - ret i32 %tmp.3 -} |