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authorBjörn Gustavsson <[email protected]>2015-04-15 09:59:05 +0200
committerBjörn Gustavsson <[email protected]>2015-04-22 10:14:55 +0200
commit37225949b6cf177934848fff21a1a551b7f6faee (patch)
tree090c584959ca6736df3ccd79e5df6dbebf50be87 /lib/compiler/src/beam_utils.erl
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beam_block: Optimize matching of binary literals
When matching a binary literal as in: <<"abc">> = Bin the compiler will produce a sequence of three instructions (some details in the instructions removed for simplicity): bs_start_match2 Fail BinReg CtxtReg bs_match_string Fail CtxtReg "abc" bs_test_tail2 Fail CtxtReg 0 The sequence can be replaced with: is_eq_exact Fail BinReg "abc"
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