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Loads and stores (except longs, which are difficult) are now loaded with two

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instructions rather than three.
This commit is contained in:
David Given 2018-09-18 23:38:37 +02:00
parent 52ee317878
commit d23d2dd1b3
1 changed files with 50 additions and 0 deletions
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50
mach/mips/mcg/table
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@ -241,28 +241,58 @@ PATTERNS
emit "sw %value, %addr"
cost 4;
STORE.I(label:LABEL.I, value:(int)reg)
emit "lui at, ha16[$label]"
emit "sw %value, lo16[$label] (at)"
cost 8;
STOREH.I(addr:address, value:(int)ushortX)
emit "sh %value, %addr"
cost 4;
STOREH.I(label:LABEL.I, value:(int)reg)
emit "lui at, ha16[$label]"
emit "sh %value, lo16[$label] (at)"
cost 8;
STOREB.I(addr:address, value:(int)ubyteX)
emit "sb %value, %addr"
cost 4;
STOREB.I(label:LABEL.I, value:(int)reg)
emit "lui at, ha16[$label]"
emit "sb %value, lo16[$label] (at)"
cost 8;
STORE.F(addr:address, value:(float)reg)
emit "swc1 %value, %addr"
cost 4;
STORE.F(label:LABEL.I, value:(int)reg)
emit "lui at, ha16[$label]"
emit "swc1 %value, lo16[$label] (at)"
cost 8;
STORE.D(addr:address, value:(double)reg)
emit "sdc1 %value, %addr"
cost 4;
STORE.D(label:LABEL.I, value:(int)reg)
emit "lui at, ha16[$label]"
emit "sdc1 %value, lo16[$label] (at)"
cost 8;
/* Loads */
out:(int)reg = LOAD.I(addr:address)
emit "lw %out, %addr"
cost 4;
out:(int)reg = LOAD.I(label:LABEL.I)
emit "lui at, ha16[$label]"
emit "lw %out, lo16[$label] (at)"
cost 8;
/* We can't just load directly because %out.0 and %addr might share
* a register, resulting in %addr being corrupted before %out.1 is
* loaded. */
@ -276,18 +306,38 @@ PATTERNS
emit "lhu %out, %addr"
cost 4;
out:(int)ushort0 = LOADH.I(label:LABEL.I)
emit "lui at, ha16[$label]"
emit "lhu %out, lo16[$label] (at)"
cost 8;
out:(int)ubyte0 = LOADB.I(addr:address)
emit "lbu %out, %addr"
cost 4;
out:(int)ubyte0 = LOADB.I(label:LABEL.I)
emit "lui at, ha16[$label]"
emit "lbu %out, lo16[$label] (at)"
cost 8;
out:(float)reg = LOAD.F(addr:address)
emit "lwc1 %out, %addr"
cost 4;
out:(float)reg = LOAD.F(label:LABEL.I)
emit "lui at, ha16[$label]"
emit "lwc1 %out, lo16[$label] (at)"
cost 8;
out:(double)reg = LOAD.D(addr:address)
emit "ldc1 %out, %addr"
cost 4;
out:(double)reg = LOAD.D(label:LABEL.I)
emit "lui at, ha16[$label]"
emit "ldc1 %out, lo16[$label] (at)"
cost 8;
/* ubyte intrinsics */
out:(int)ubyteX = in:(int)ubyte0