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| author | Björn Gustavsson <[email protected]> | 2015-01-13 10:39:44 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2015-01-21 10:01:21 +0100 |
| commit | c03889dcbce713c4dbf70b9415aeb7f0b904929c (patch) | |
| tree | 242b9325e324b809a3442db1f38528a947b0ee81 /lib/compiler/src/beam_utils.erl | |
| parent | 266cb7db1e78cdfdda87d2fa954ce229228dcb73 (diff) | |
| download | otp-c03889dcbce713c4dbf70b9415aeb7f0b904929c.tar.gz otp-c03889dcbce713c4dbf70b9415aeb7f0b904929c.tar.bz2 otp-c03889dcbce713c4dbf70b9415aeb7f0b904929c.zip | |
beam_utils: Remove unreachable clauses in live_opt/4
beam_utils:live_opt() is only invoked on code that has been
blockified by beam_block. Therefore the allocate/3 and
allocate_heap/4 instructions only occur in their transformed
form inside a block.
While we are it, correct a comment. 'asm' has been replaced
by 'from_asm'.
Diffstat (limited to 'lib/compiler/src/beam_utils.erl')
| -rw-r--r-- | lib/compiler/src/beam_utils.erl | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl index e82ba82d38..84a2b782e9 100644 --- a/lib/compiler/src/beam_utils.erl +++ b/lib/compiler/src/beam_utils.erl @@ -758,13 +758,9 @@ live_opt([{line,_}=I|Is], Regs, D, Acc) -> live_opt(Is, Regs, D, [I|Acc]); %% The following instructions can occur if the "compilation" has been -%% started from a .S file using the 'asm' option. +%% started from a .S file using the 'from_asm' option. live_opt([{trim,_,_}=I|Is], Regs, D, Acc) -> live_opt(Is, Regs, D, [I|Acc]); -live_opt([{allocate,_,Live}=I|Is], _, D, Acc) -> - live_opt(Is, live_call(Live), D, [I|Acc]); -live_opt([{allocate_heap,_,_,Live}=I|Is], _, D, Acc) -> - live_opt(Is, live_call(Live), D, [I|Acc]); live_opt([{'%',_}=I|Is], Regs, D, Acc) -> live_opt(Is, Regs, D, [I|Acc]); live_opt([{recv_set,_}=I|Is], Regs, D, Acc) -> |