diff options
Diffstat (limited to 'llvm/test/Transforms/LoopUnroll/full-unroll-heuristics.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopUnroll/full-unroll-heuristics.ll | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/llvm/test/Transforms/LoopUnroll/full-unroll-heuristics.ll b/llvm/test/Transforms/LoopUnroll/full-unroll-heuristics.ll index 2dab2fbf2e4..904a65a1bc0 100644 --- a/llvm/test/Transforms/LoopUnroll/full-unroll-heuristics.ll +++ b/llvm/test/Transforms/LoopUnroll/full-unroll-heuristics.ll @@ -1,8 +1,8 @@ ; In this test we check how heuristics for complete unrolling work. We have ; three knobs: ; 1) -unroll-threshold -; 2) -unroll-absolute-threshold and -; 3) -unroll-percent-of-optimized-for-complete-unroll +; 3) -unroll-percent-dynamic-cost-saved-threshold and +; 2) -unroll-dynamic-cost-savings-discount ; ; They control loop-unrolling according to the following rules: ; * If size of unrolled loop exceeds the absoulte threshold, we don't unroll @@ -17,10 +17,10 @@ ; optimizations to remove ~55% of the instructions, the loop body size is 9, ; and unrolled size is 65. -; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-absolute-threshold=10 -unroll-threshold=10 -unroll-percent-of-optimized-for-complete-unroll=20 | FileCheck %s -check-prefix=TEST1 -; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-absolute-threshold=100 -unroll-threshold=10 -unroll-percent-of-optimized-for-complete-unroll=20 | FileCheck %s -check-prefix=TEST2 -; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-absolute-threshold=100 -unroll-threshold=10 -unroll-percent-of-optimized-for-complete-unroll=80 | FileCheck %s -check-prefix=TEST3 -; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-absolute-threshold=100 -unroll-threshold=100 -unroll-percent-of-optimized-for-complete-unroll=80 | FileCheck %s -check-prefix=TEST4 +; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-threshold=10 -unroll-percent-dynamic-cost-saved-threshold=20 -unroll-dynamic-cost-savings-discount=0 | FileCheck %s -check-prefix=TEST1 +; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-threshold=10 -unroll-percent-dynamic-cost-saved-threshold=20 -unroll-dynamic-cost-savings-discount=90 | FileCheck %s -check-prefix=TEST2 +; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-threshold=10 -unroll-percent-dynamic-cost-saved-threshold=80 -unroll-dynamic-cost-savings-discount=90 | FileCheck %s -check-prefix=TEST3 +; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=1000 -unroll-threshold=100 -unroll-percent-dynamic-cost-saved-threshold=80 -unroll-dynamic-cost-savings-discount=0 | FileCheck %s -check-prefix=TEST4 ; If the absolute threshold is too low, or if we can't optimize away requested ; percent of instructions, we shouldn't unroll: |
