diff options
Diffstat (limited to 'lisc/parse.c')
| -rw-r--r-- | lisc/parse.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/lisc/parse.c b/lisc/parse.c index 50e5d0a..d504113 100644 --- a/lisc/parse.c +++ b/lisc/parse.c @@ -23,6 +23,12 @@ OpDesc opdesc[OLast] = { [OSwap] = { "swap", 2, T }, [OSign] = { "sign", 1, U }, [OXDiv] = { "xdiv", 1, U }, + [OXCmp] = { "xcmp", 2, U }, + + [OCmp+Ceq] = { "ceq", 2, U }, + [OCmp+Csle] = { "csle", 2, U }, + [OXSet+Ceq] = { "xsete", 0, U }, + [OXSet+Csle] = { "xsetle", 0, U }, }; typedef enum { @@ -40,6 +46,8 @@ typedef enum { TSub, TDiv, TRem, + TCeq, + TCsle, TPhi, TJmp, TJez, @@ -123,6 +131,8 @@ lex() { "sub", TSub }, { "div", TDiv }, { "rem", TRem }, + { "ceq", TCeq }, + { "csle", TCsle }, { "phi", TPhi }, { "jmp", TJmp }, { "jez", TJez }, @@ -242,7 +252,7 @@ blocka() } static Ref -tmpref(char *v) +tmpref(char *v, int use) { int t; @@ -252,6 +262,8 @@ tmpref(char *v) if (ntmp++ >= NTmp) err("too many temporaries"); strcpy(tmp[t].name, v); + tmp[t].ndef += !use; + tmp[t].nuse += use; return TMP(t); } @@ -263,7 +275,7 @@ parseref() switch (next()) { case TTmp: - return tmpref(tokval.str); + return tmpref(tokval.str, 1); case TNum: c = (Con){.type = CNum, .val = tokval.num}; strcpy(c.label, ""); @@ -400,7 +412,7 @@ parseline(PState ps) closeblk(); return PLbl; } - r = tmpref(tokval.str); + r = tmpref(tokval.str, 0); expect(TEq); switch (next()) { case TW: @@ -428,6 +440,12 @@ parseline(PState ps) case TRem: op = ORem; break; + case TCeq: + op = OCmp+Ceq; + break; + case TCsle: + op = OCmp+Csle; + break; case TPhi: if (ps != PPhi) err("unexpected phi instruction"); |