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| author | Evan Cheng <evan.cheng@apple.com> | 2011-01-28 02:19:21 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-01-28 02:19:21 +0000 |
| commit | 40f64cb0de40802ddd2f928b62e9564e1e721ff3 (patch) | |
| tree | e94f9f5d77d86efd85ac2d6f0ad8a3ced55ca5ee /test/Transforms/JumpThreading/and-and-cond.ll | |
| parent | c3a20bab7571ff95525252c379198e67b65d0f1d (diff) | |
| download | llvm-40f64cb0de40802ddd2f928b62e9564e1e721ff3.tar.gz llvm-40f64cb0de40802ddd2f928b62e9564e1e721ff3.tar.bz2 llvm-40f64cb0de40802ddd2f928b62e9564e1e721ff3.tar.xz | |
- Stop simplifycfg from duplicating "ret" instructions into unconditional
branches. PR8575, rdar://5134905, rdar://8911460.
- Allow codegen tail duplication to dup small return blocks after register
allocation is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124462 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/JumpThreading/and-and-cond.ll')
| -rw-r--r-- | test/Transforms/JumpThreading/and-and-cond.ll | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/test/Transforms/JumpThreading/and-and-cond.ll b/test/Transforms/JumpThreading/and-and-cond.ll index e6db9ee5a3..765d940cc7 100644 --- a/test/Transforms/JumpThreading/and-and-cond.ll +++ b/test/Transforms/JumpThreading/and-and-cond.ll @@ -1,14 +1,14 @@ -; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg -S | grep {ret i32 %v1} -; There should be no uncond branches left. -; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg -S | not grep {br label} +; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg -S | FileCheck %s declare i32 @f1() declare i32 @f2() declare void @f3() define i32 @test(i1 %cond, i1 %cond2, i1 %cond3) { +; CHECK: test br i1 %cond, label %T1, label %F1 +; CHECK-NOT: T1: T1: %v1 = call i32 @f1() br label %Merge @@ -18,6 +18,10 @@ F1: br label %Merge Merge: +; CHECK: Merge: +; CHECK: %v1 = call i32 @f1() +; CHECK-NEXT: %D = and i1 %cond2, %cond3 +; CHECK-NEXT: br i1 %D %A = phi i1 [true, %T1], [false, %F1] %B = phi i32 [%v1, %T1], [%v2, %F1] %C = and i1 %A, %cond2 |