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Added SLI reduce

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This commit is contained in:
ceriel
1991-02-19 16:45:57 +00:00
parent e0be1dfe3a
commit 79cb35ec4f
15 changed files with 19 additions and 24 deletions
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4
util/ego/sr/sr.c
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@@ -24,7 +24,7 @@
/* Strength reduction tries to change expensive operators occurring
* in a loop into cheaper operators. The expensive operators considered
* are multiplication and array referencing.
* are multiplication, left-shift and array referencing.
* The transformations can be expressed in C as:
*
* [1]: for (i = e1; i <= e2; i++)
@@ -46,6 +46,7 @@
int ovfl_harmful;
int arrbound_harmful;
int sli_threshold;
int Ssr; /* #optimizations found */
@@ -63,6 +64,7 @@ sr_machinit(f)
}
fscanf(f,"%d",&ovfl_harmful);
fscanf(f,"%d",&arrbound_harmful);
fscanf(f,"%d",&sli_threshold);
}
STATIC del_ivs(ivs)