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cmd/gc: merge casep and casee labels

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The code inside the casee and casep labels can perfectly be merged since
they essentially do the same. The character to be stored where cp points is
just the character contained by the c variable.

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6845112
This commit is contained in:
Miquel Sabaté Solà 2012-12-11 12:23:04 -05:00 committed by Russ Cox
parent 3c6c88319e
commit 0dd0e1ad0c
1 changed files with 7 additions and 30 deletions
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37
src/cmd/gc/lex.c
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@ -1296,13 +1296,13 @@ tnum:
if(cp == lexbuf+2) if(cp == lexbuf+2)
yyerror("malformed hex constant"); yyerror("malformed hex constant");
if(c == 'p') if(c == 'p')
goto casep; goto caseep;
goto ncu; goto ncu;
} }
} }
if(c == 'p') // 0p begins floating point zero if(c == 'p') // 0p begins floating point zero
goto casep; goto caseep;
c1 = 0; c1 = 0;
for(;;) { for(;;) {
@ -1320,7 +1320,7 @@ tnum:
if(c == '.') if(c == '.')
goto casedot; goto casedot;
if(c == 'e' || c == 'E') if(c == 'e' || c == 'E')
goto casee; goto caseep;
if(c == 'i') if(c == 'i')
goto casei; goto casei;
if(c1) if(c1)
@ -1330,10 +1330,8 @@ tnum:
dc: dc:
if(c == '.') if(c == '.')
goto casedot; goto casedot;
if(c == 'e' || c == 'E') if(c == 'e' || c == 'E' || c == 'p' || c == 'P')
goto casee; goto caseep;
if(c == 'p' || c == 'P')
goto casep;
if(c == 'i') if(c == 'i')
goto casei; goto casei;
@ -1369,29 +1367,8 @@ casedot:
if(c != 'e' && c != 'E') if(c != 'e' && c != 'E')
goto caseout; goto caseout;
casee: caseep:
*cp++ = 'e'; *cp++ = c;
c = getc();
if(c == '+' || c == '-') {
*cp++ = c;
c = getc();
}
if(!yy_isdigit(c))
yyerror("malformed fp constant exponent");
while(yy_isdigit(c)) {
if(cp+10 >= ep) {
yyerror("identifier too long");
errorexit();
}
*cp++ = c;
c = getc();
}
if(c == 'i')
goto casei;
goto caseout;
casep:
*cp++ = 'p';
c = getc(); c = getc();
if(c == '+' || c == '-') { if(c == '+' || c == '-') {
*cp++ = c; *cp++ = c;