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Telling the compiler that error is rare we get another performance improvement:

Benchmark Perf (sec)
3d-cube.js 1.166 -> 1.168 : -0.110%
3d-raytrace.js 1.404 -> 1.397 : +0.495%
access-binary-trees.js 0.714 -> 0.707 : +1.002%
access-fannkuch.js 2.831 -> 2.815 : +0.583%
access-nbody.js 1.404 -> 1.390 : +0.999%
bitops-3bit-bits-in-byte.js 0.650 -> 0.642 : +1.246%
bitops-bits-in-byte.js 0.947 -> 0.926 : +2.233%
bitops-bitwise-and.js 1.980 -> 1.847 : +6.726%
bitops-nsieve-bits.js 2.242 -> 2.250 : -0.336%
controlflow-recursive.js 0.495 -> 0.488 : +1.339%
crypto-aes.js 1.288 -> 1.302 : -1.086%
crypto-md5.js 0.877 -> 0.854 : +2.649%
crypto-sha1.js 0.814 -> 0.799 : +1.935%
date-format-tofte.js 1.083 -> 1.079 : +0.352%
date-format-xparb.js 0.563 -> 0.547 : +2.865%
math-cordic.js 1.730 -> 1.666 : +3.734%
math-partial-sums.js 0.981 -> 0.964 : +1.723%
math-spectral-norm.js 0.713 -> 0.719 : -0.894%
string-base64.js 4.631 -> 4.602 : +0.613%
string-fasta.js 2.170 -> 2.154 : +0.751%
Geometric mean: +1.356%

Binary size not changed.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
@dbatyai
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dbatyai commented Jun 14, 2016

LGTM

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@LaszloLango
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LGTM

@zherczeg zherczeg merged commit b828d4a into jerryscript-project:master Jun 14, 2016
@zherczeg zherczeg deleted the is_value_error branch June 14, 2016 12:22
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3 participants