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| author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-04-14 03:20:38 +0000 |
|---|---|---|
| committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-04-14 03:20:38 +0000 |
| commit | e178f469655dd0e1a17318e649848e21ed2f9360 (patch) | |
| tree | 819fba9b0780f554a5f8eb83afe0091545258560 /llvm/test/Transforms/LoopUnroll/runtime-loop.ll | |
| parent | a9f1e27a0493892005c1602ffdf76a3a7ff19d73 (diff) | |
| download | bcm5719-llvm-e178f469655dd0e1a17318e649848e21ed2f9360.tar.gz bcm5719-llvm-e178f469655dd0e1a17318e649848e21ed2f9360.zip | |
[LoopUnrollRuntime] Avoid high-cost trip count computation.
Summary:
Runtime unrolling of loops needs to emit an expression to compute the
loop's runtime trip-count. Avoid runtime unrolling if this computation
will be expensive.
Depends on D8993.
Reviewers: atrick
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8994
llvm-svn: 234846
Diffstat (limited to 'llvm/test/Transforms/LoopUnroll/runtime-loop.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopUnroll/runtime-loop.ll | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopUnroll/runtime-loop.ll b/llvm/test/Transforms/LoopUnroll/runtime-loop.ll index 9e78edfb25e..fea15b65d5a 100644 --- a/llvm/test/Transforms/LoopUnroll/runtime-loop.ll +++ b/llvm/test/Transforms/LoopUnroll/runtime-loop.ll @@ -1,5 +1,7 @@ ; RUN: opt < %s -S -loop-unroll -unroll-runtime=true | FileCheck %s +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" + ; Tests for unrolling loops with run-time trip counts ; CHECK: %xtraiter = and i32 %n |
