diff options
Diffstat (limited to 'llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch.ll')
| -rw-r--r-- | llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch.ll b/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch.ll index 142974c5b81..2644796332a 100644 --- a/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch.ll +++ b/llvm/test/Transforms/SimpleLoopUnswitch/exponential-nontrivial-unswitch.ll @@ -10,6 +10,16 @@ ; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=8 \ ; 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=8 \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1 +; +; With relaxed candidates multiplier (unscaled candidates == 8) we should allow +; some unswitches to happen until siblings multiplier starts kicking in: ; With relaxed candidates multiplier (unscaled candidates == 8) we should allow ; some unswitches to happen until siblings multiplier starts kicking in: ; @@ -17,6 +27,10 @@ ; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=1 \ ; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP5 ; +; RUN: opt < %s -enable-unswitch-cost-multiplier=true \ +; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=1 \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP5 +; ; With relaxed candidates multiplier (unscaled candidates == 8) and with relaxed ; siblings multiplier for top-level loops (toplevel-div == 8) we should get ; 2^(num conds) == 2^5 == 32 @@ -26,6 +40,10 @@ ; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=8 \ ; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32 ; +; RUN: opt < %s -enable-unswitch-cost-multiplier=true \ +; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=8 \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32 +; ; Similarly get ; 2^(num conds) == 2^5 == 32 ; copies of the loop when cost multiplier is disabled: @@ -33,6 +51,8 @@ ; RUN: opt < %s -enable-unswitch-cost-multiplier=false \ ; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32 ; +; RUN: opt < %s -enable-unswitch-cost-multiplier=false \ +; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32 ; ; Single loop, not unswitched ; LOOP1: Loop at depth 1 containing: |
