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complete a crude register allocator

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This commit is contained in:
Quentin Carbonneaux 2015-07-27 14:34:22 -04:00
parent ee784dbfcd
commit 8899449c39
4 changed files with 124 additions and 37 deletions
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5
lisc/parse.c
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@ -18,9 +18,10 @@ OpDesc opdesc[OLast] = {
[ORem] = { 2, 0, "rem" },
[OStore] = { 2, 0, "store" },
[OLoad] = { 1, 0, "load" },
[OCopy] = { 1, 0, "copy" },
[OSwap] = { 2, 1, "swap" },
[OIADiv] = { 1, 0, "iadiv" },
[OIACltd] = { 0, 0, "iacltd" },
[OCopy] = { 1, 0, "copy" },
};
typedef enum {
@ -95,6 +96,8 @@ alloc(size_t n)
void *p;
/* todo, export in util.c */
if (n == 0)
return 0;
p = calloc(1, n);
if (!p)
abort();