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| author | Serguei Katkov <serguei.katkov@azul.com> | 2019-09-19 06:57:29 +0000 |
|---|---|---|
| committer | Serguei Katkov <serguei.katkov@azul.com> | 2019-09-19 06:57:29 +0000 |
| commit | a44768858c75ae3e020bb2951af00743ae48742e (patch) | |
| tree | 5f934af7543697cf3860211658ccc3ee70f067c4 /llvm/test/Transforms/LoopUnroll | |
| parent | c2d25ed1b36d1c9cd02421b09635c1ee55b8099d (diff) | |
| download | bcm5719-llvm-a44768858c75ae3e020bb2951af00743ae48742e.tar.gz bcm5719-llvm-a44768858c75ae3e020bb2951af00743ae48742e.zip | |
[Unroll] Add an option to control complete unrolling
Add an ability to specify the max full unroll count for LoopUnrollPass pass
in pass options.
Reviewers: fhahn, fedor.sergeev
Reviewed By: fedor.sergeev
Subscribers: hiraditya, zzheng, dmgreen, llvm-commits
Differential Revision: https://reviews.llvm.org/D67701
llvm-svn: 372305
Diffstat (limited to 'llvm/test/Transforms/LoopUnroll')
| -rw-r--r-- | llvm/test/Transforms/LoopUnroll/disable-full-unroll-by-opt.ll | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopUnroll/disable-full-unroll-by-opt.ll b/llvm/test/Transforms/LoopUnroll/disable-full-unroll-by-opt.ll new file mode 100644 index 00000000000..c89948ad52c --- /dev/null +++ b/llvm/test/Transforms/LoopUnroll/disable-full-unroll-by-opt.ll @@ -0,0 +1,35 @@ +; Default behavior +; RUN: opt < %s -passes='unroll' -S | FileCheck %s -check-prefixes=ENABLE,COMMON + +; Pass option +; RUN: opt < %s -passes='unroll<full-unroll-max=0>' -S | FileCheck %s -check-prefixes=DISABLE,COMMON +; RUN: opt < %s -passes='unroll<full-unroll-max=30>' -S | FileCheck %s -check-prefixes=DISABLE,COMMON +; RUN: opt < %s -passes='unroll<full-unroll-max=36>' -S | FileCheck %s -check-prefixes=ENABLE,COMMON + +; cl::opt option +; RUN: opt < %s -passes='unroll' -unroll-full-max-count=0 -S | FileCheck %s -check-prefixes=DISABLE,COMMON +; RUN: opt < %s -passes='unroll' -unroll-full-max-count=30 -S | FileCheck %s -check-prefixes=DISABLE,COMMON +; RUN: opt < %s -passes='unroll' -unroll-full-max-count=36 -S | FileCheck %s -check-prefixes=ENABLE,COMMON + +; Pass option has a priority over cl::opt +; RUN: opt < %s -passes='unroll<full-unroll-max=30>' -unroll-full-max-count=36 -S | FileCheck %s -check-prefixes=DISABLE,COMMON +; RUN: opt < %s -passes='unroll<full-unroll-max=36>' -unroll-full-max-count=30 -S | FileCheck %s -check-prefixes=ENABLE,COMMON + +define void @test() { +; COMMON-LABEL: @test( + entry: + br label %loop + + loop: + %idx = phi i32 [ 0, %entry ], [ %idx.inc, %loop ] + %idx.inc = add i32 %idx, 1 + %be = icmp slt i32 %idx, 32 + br i1 %be, label %loop, label %exit + +; COMMON: loop: +; DISABLE: %be = icmp slt i32 %idx, 32 +; ENABLE-NOT: %be = icmp slt i32 %idx, 32 + + exit: + ret void +} |
