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| author | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
| commit | cee313d288a4faf0355d76fb6e0e927e211d08a5 (patch) | |
| tree | d386075318d761197779a96e5d8fc0dc7b06342b /llvm/test/Transforms/SimpleLoopUnswitch/exponential-behavior.ll | |
| parent | c3d6a929fdd92fd06d4304675ade8d7210ee711a (diff) | |
| download | bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.tar.gz bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.zip | |
Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
Diffstat (limited to 'llvm/test/Transforms/SimpleLoopUnswitch/exponential-behavior.ll')
| -rw-r--r-- | llvm/test/Transforms/SimpleLoopUnswitch/exponential-behavior.ll | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimpleLoopUnswitch/exponential-behavior.ll b/llvm/test/Transforms/SimpleLoopUnswitch/exponential-behavior.ll new file mode 100644 index 00000000000..1c46ddbf51a --- /dev/null +++ b/llvm/test/Transforms/SimpleLoopUnswitch/exponential-behavior.ll @@ -0,0 +1,52 @@ +; RUN: opt -simple-loop-unswitch -S < %s | FileCheck %s +; RUN: opt -simple-loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -S < %s | FileCheck %s + +define void @f(i32 %n, i32* %ptr) { +; CHECK-LABEL: @f( +entry: + br label %loop + +loop: + %iv = phi i32 [ 0, %entry ], [ %iv.inc, %be ] + %iv.inc = add i32 %iv, 1 + %unswitch_cond_root = icmp ne i32 %iv.inc, 42 + %us.0 = and i1 %unswitch_cond_root, %unswitch_cond_root + %us.1 = and i1 %us.0, %us.0 + %us.2 = and i1 %us.1, %us.1 + %us.3 = and i1 %us.2, %us.2 + %us.4 = and i1 %us.3, %us.3 + %us.5 = and i1 %us.4, %us.4 + %us.6 = and i1 %us.5, %us.5 + %us.7 = and i1 %us.6, %us.6 + %us.8 = and i1 %us.7, %us.7 + %us.9 = and i1 %us.8, %us.8 + %us.10 = and i1 %us.9, %us.9 + %us.11 = and i1 %us.10, %us.10 + %us.12 = and i1 %us.11, %us.11 + %us.13 = and i1 %us.12, %us.12 + %us.14 = and i1 %us.13, %us.13 + %us.15 = and i1 %us.14, %us.14 + %us.16 = and i1 %us.15, %us.15 + %us.17 = and i1 %us.16, %us.16 + %us.18 = and i1 %us.17, %us.17 + %us.19 = and i1 %us.18, %us.18 + %us.20 = and i1 %us.19, %us.19 + %us.21 = and i1 %us.20, %us.20 + %us.22 = and i1 %us.21, %us.21 + %us.23 = and i1 %us.22, %us.22 + %us.24 = and i1 %us.23, %us.23 + %us.25 = and i1 %us.24, %us.24 + %us.26 = and i1 %us.25, %us.25 + %us.27 = and i1 %us.26, %us.26 + %us.28 = and i1 %us.27, %us.27 + %us.29 = and i1 %us.28, %us.28 + br i1 %us.29, label %leave, label %be + +be: + store volatile i32 0, i32* %ptr + %becond = icmp ult i32 %iv.inc, %n + br i1 %becond, label %leave, label %loop + +leave: + ret void +} |
