vsapsai added a comment.
On release build with assertions disabled and LLVM_ENABLE_STATS being 0 the
impact on the compile time is the following
Metric: compile_time
Program output0jM4H6 output_KEgWj diff
test-suite...tTests/2003-05-07-VarArgs.test 0.03 0.02
-25.2%
test-suite...sts/2003-05-31-CastToBool.test 0.02 0.02
22.1%
test-suite...ing-flt/Equivalencing-flt.test 0.61 0.73
20.7%
test-suite...s/2009-12-07-StructReturn.test 0.02 0.02
17.1%
test-suite...ts/2003-07-06-IntOverflow.test 0.02 0.02
17.0%
test-suite...ts/block-copied-in-cxxobj.test 0.03 0.03
16.2%
test-suite...e/UnitTests/ObjC/messages.test 0.03 0.04
15.9%
test-suite...r-algebra/kernels/2mm/2mm.test 0.08 0.06
-14.7%
test-suite.../instance-method-metadata.test 0.37 0.42
14.0%
test-suite...ource/UnitTests/printargs.test 0.02 0.02
12.4%
test-suite...itTests/2003-05-26-Shorts.test 0.02 0.02
-12.2%
test-suite...-06-20-StaticBitfieldInit.test 0.02 0.02
12.2%
test-suite...tTests/2002-05-03-NotTest.test 0.02 0.02
11.5%
test-suite...tTests/C++11/stdthreadbug.test 0.28 0.26
-10.3%
test-suite...e/Benchmarks/Misc/flops-7.test 0.03 0.02
-10.2%
Geomean difference
nan%
output0jM4H6 output_KEgWj diff
count 542.000000 542.000000 424.000000
mean 0.550511 0.547688 -0.001379
std 2.215555 2.205268 0.045026
min 0.000000 0.000000 -0.252280
25% 0.015875 0.016725 -0.021092
50% 0.040950 0.040000 -0.000875
75% 0.350750 0.355700 0.017304
max 30.343300 30.326700 0.220588
To me it looks that the change in compile time is within the noise.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D68252/new/
https://reviews.llvm.org/D68252
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