diff options
Diffstat (limited to 'llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch-nested2.ll')
| -rw-r--r-- | llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch-nested2.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch-nested2.ll b/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch-nested2.ll index 7e669f1b7f8..e8879e79c53 100644 --- a/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch-nested2.ll +++ b/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch-nested2.ll @@ -15,8 +15,16 @@ ; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=16 \ ; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1 ; +; RUN: opt < %s -enable-unswitch-cost-multiplier=true \ +; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=1 \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1 +; +; RUN: opt < %s -enable-unswitch-cost-multiplier=true \ +; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=16 \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1 ; ; When we relax the candidates part of a multiplier formula +; When we relax the candidates part of a multiplier formula ; (unscaled candidates == 2) we start getting some unswitches in outer loops, ; which leads to siblings multiplier kicking in. ; @@ -25,6 +33,11 @@ ; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | \ ; RUN: sort -b -k 1 | FileCheck %s --check-prefixes=LOOP-UNSCALE3-DIV1 ; +; RUN: opt < %s -enable-unswitch-cost-multiplier=true \ +; RUN: -unswitch-num-initial-unscaled-candidates=3 -unswitch-siblings-toplevel-div=1 \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | \ +; RUN: sort -b -k 1 | FileCheck %s --check-prefixes=LOOP-UNSCALE3-DIV1 +; ; NB: sort -b is essential here and below, otherwise blanks might lead to different ; order depending on locale. ; @@ -33,12 +46,21 @@ ; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | \ ; RUN: sort -b -k 1 | FileCheck %s --check-prefixes=LOOP-UNSCALE3-DIV2 ; +; RUN: opt < %s -enable-unswitch-cost-multiplier=true \ +; RUN: -unswitch-num-initial-unscaled-candidates=3 -unswitch-siblings-toplevel-div=2 \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | \ +; RUN: sort -b -k 1 | FileCheck %s --check-prefixes=LOOP-UNSCALE3-DIV2 +; ; With disabled cost-multiplier we get maximal possible amount of unswitches. ; ; RUN: opt < %s -enable-unswitch-cost-multiplier=false \ ; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | \ ; RUN: sort -b -k 1 | FileCheck %s --check-prefixes=LOOP-MAX ; +; RUN: opt < %s -enable-unswitch-cost-multiplier=false \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | \ +; RUN: sort -b -k 1 | FileCheck %s --check-prefixes=LOOP-MAX +; ; Single loop nest, not unswitched ; LOOP1: Loop at depth 1 containing: ; LOOP1-NOT: Loop at depth 1 containing: |
