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2012-11-26beam_jump: Move bs_context_to_binary/1 + exit instructionBjörn Gustavsson
Generate slightly smaller and faster code.
2012-10-10Break apart tail-recursive call instructionsBjörn Gustavsson
Somewhat reduce the code bloat by eliminating special cases.
2012-10-10Rewrite select_val and select_tuple_arity to a select instructionBjörn Gustavsson
Eliminate some code bloat.
2012-10-09Rewrite binary creation instructions to bs_init instructionsBjörn Gustavsson
Rewrite the five binary creation instructions to a bs_init instruction, in order to somewhat reduce code bloat.
2012-10-09Rewrite bs_add, bs_utf*_size to BIF instructions in optimizationsBjörn Gustavsson
We can remove some code bloat by handling the special instructions as BIF instructions in the optimization passes. Also note that bs_utf*_size was not handled by beam_utils:check_liveness/3 (meaning the conservative answer instead of the correct answer would be returned).
2012-10-09Rewrite bs_put* instructions to a generic bs_put instructionBjörn Gustavsson
Seven bs_put_* instructions can be combined into one generic bs_put instruction to avoid some code bloat. That will also improve some optimizations (such as beam_trim) that did not handle all bs_put* variants.
2012-10-09Refactor removal of unused labelsBjörn Gustavsson
Since we always want to remove unused labels directly after code generation (whether we'll run the optimization passes or not), we can simplify the code by doing it in beam_a.
2012-10-09beam_jump: Don't move a block which can be entered via a fallthroughBjörn Gustavsson
beam_jump moves short code sequences ending in an instruction that causes an exception to the end of the function, in the hope that a jump around the moved blocked can be replaced with a fallthrough. Therefore, moving a block that is entered via a fallthrough defeats the purpose of the optimization. Also add two more test cases for the beam_receive module to ensure that all lines are still covered.
2012-10-09beam_jump: Fix broken optimizationBjörn Gustavsson
A test instruction with the same target label as jump immediately followed it was supposed to be removed, but it was kept anyway. Fix that optimization, but also make sure that the test instruction is kept if the test instruction may have side effects (such as a bit syntax matching instruction). While at it, make the code cleaner by breaking it up into two clauses and don't remove the jump instruction if it is redudant (removal of redundant jump instructions is already handled in another place).
2011-12-09Update copyright yearsBjörn-Egil Dahlberg
2011-08-16compiler: Generate line instructionsBjörn Gustavsson
2010-03-25Merge branch 'bg/compiler-remove-r11-support' into devErlang/OTP
* bg/compiler-remove-r11-support: compiler: Don't support the no_binaries option erts: Don't support the put_string/3 instruction compiler: Don't support the no_constant_pool option compiler: Don't support the r11 option test_server: Don't support communication with R11 nodes binary_SUITE: Don't test bit-level binary roundtrips with R11 nodes erts: Test compatibility of funs with R12 instead of R11 OTP-8531 bg/compiler-remove-r11-support
2010-03-22compiler: Don't support the no_constant_pool optionBjörn Gustavsson
The no_constant_pool option was implied by the r11 option. It turns off the usage of the constant (literal) pool, so that BEAM instructions that use constants can be loaded in an R11 system. Since the r11 option has been removed, there is no need to retain the no_constant_pool option.
2009-11-20The R13B03 release.OTP_R13B03Erlang/OTP