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authorBjörn Gustavsson <[email protected]>2016-04-07 10:06:44 +0200
committerBjörn Gustavsson <[email protected]>2016-04-08 10:28:42 +0200
commit3c0f98c1b0e74eb58a4e4e82a3ec89dc7ecdb579 (patch)
treec7b5544b9a7e506bc641302d265f6e44a468a660 /lib/compiler/src/beam_z.erl
parent0e1e90907ae76aae80f15316c2e43200a70d639b (diff)
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Simplify the raise instruction to reduce code size
The raise/2 instruction is almost always used like this: raise x(2) x(1) Therefore, we can translate it to an internal i_raise/0 instruction that uses x(2) x(1) as its implicit operands. We will also remove the backward compatibility with R10-0. It is unlikely that anyone still is using BEAM files compiled with the R10-0 compiler, especially since most of those modules cannot be loaded. The loader will refuse to load any module that uses the old non-GCIng arithmetic instructions or the non-GCing versions of length/1 or size/1. Doing these changes will reduce both the size of the loaded BEAM code and size of the code in process_main().
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