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| author | Magnus Lång <[email protected]> | 2016-10-02 13:18:51 +0200 |
|---|---|---|
| committer | Magnus Lång <[email protected]> | 2016-11-15 14:59:00 +0100 |
| commit | 921638f8b22479473482bdcaa25f8031ac85e7e8 (patch) | |
| tree | 6aa26ac07bd3cbfe39eaf9f34bfdc5a2d5d45bb5 /lib/hipe/x86/hipe_x86.erl | |
| parent | df04801d5585f52ddc042d30873bdc95da019af6 (diff) | |
| download | otp-921638f8b22479473482bdcaa25f8031ac85e7e8.tar.gz otp-921638f8b22479473482bdcaa25f8031ac85e7e8.tar.bz2 otp-921638f8b22479473482bdcaa25f8031ac85e7e8.zip | |
hipe_rtl_to_x86: Use LEA only for immediate adds
It seems that most 3-address adds of temps can be move coalesced.
Therefore, we limit the behaviour added by 1567585dda8 to only affect
immediate adds.
Also, add conversion of immediate mov+sub to lea.
Diffstat (limited to 'lib/hipe/x86/hipe_x86.erl')
| -rw-r--r-- | lib/hipe/x86/hipe_x86.erl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/hipe/x86/hipe_x86.erl b/lib/hipe/x86/hipe_x86.erl index e7c4497cda..95af3f9c67 100644 --- a/lib/hipe/x86/hipe_x86.erl +++ b/lib/hipe/x86/hipe_x86.erl @@ -37,7 +37,7 @@ mk_imm_from_addr/2, mk_imm_from_atom/1, is_imm/1, - %% imm_value/1, + imm_value/1, mk_mem/3, %% is_mem/1, @@ -241,7 +241,7 @@ mk_imm_from_addr(Addr, Type) -> mk_imm_from_atom(Atom) -> mk_imm(Atom). is_imm(X) -> case X of #x86_imm{} -> true; _ -> false end. -%% imm_value(#x86_imm{value=Value}) -> Value. +imm_value(#x86_imm{value=Value}) -> Value. mk_mem(Base, Off, Type) -> #x86_mem{base=Base, off=Off, type=Type}. %% is_mem(X) -> case X of #x86_mem{} -> true; _ -> false end. |