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| author | Björn Gustavsson <[email protected]> | 2012-09-04 10:53:40 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2012-10-09 15:24:40 +0200 |
| commit | 8c9863948b440f2741b6df3ffda2c6dd2b7b363c (patch) | |
| tree | 68f08d615672add70c701bf6bf796513228d9367 /lib/compiler/src/compile.erl | |
| parent | e38dc4aaeb769aaf531c66e508f475ed24c25ffd (diff) | |
| download | otp-8c9863948b440f2741b6df3ffda2c6dd2b7b363c.tar.gz otp-8c9863948b440f2741b6df3ffda2c6dd2b7b363c.tar.bz2 otp-8c9863948b440f2741b6df3ffda2c6dd2b7b363c.zip | |
Introduce the mandatory beam_a and beam_z passes
Introduce the mandary beam_a pass that will be run directly after code
generation, and the mandatory beam_z pass that will be run just before
beam_asm. Since these passes surround the optimizations, beam_a can
(for example) do instruction renaming to simplify the optimization
passes and beam_z can undo those renamings.
Diffstat (limited to 'lib/compiler/src/compile.erl')
| -rw-r--r-- | lib/compiler/src/compile.erl | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl index 2f374e6fb0..0346c0441a 100644 --- a/lib/compiler/src/compile.erl +++ b/lib/compiler/src/compile.erl @@ -632,7 +632,8 @@ kernel_passes() -> asm_passes() -> %% Assembly level optimisations. [{delay, - [{unless,no_postopt, + [{pass,beam_a}, + {unless,no_postopt, [{pass,beam_block}, {iff,dblk,{listing,"block"}}, {unless,no_except,{pass,beam_except}}, @@ -666,6 +667,7 @@ asm_passes() -> [?pass(beam_unused_labels), {pass,beam_clean}]}, + {pass,beam_z}, {iff,dopt,{listing,"optimize"}}, {iff,'S',{listing,"S"}}, {iff,'to_asm',{done,"S"}}]}, |