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bug 158 

R=r
OCL=29646
CL=29646
This commit is contained in:
Ken Thompson 2009-05-30 17:06:51 -07:00
parent 91395ae689
commit be63b6dc44
4 changed files with 14 additions and 10 deletions
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14
src/cmd/gc/swt.c
View File

@ -33,6 +33,14 @@ struct Case
}; };
#define C ((Case*)nil) #define C ((Case*)nil)
Type*
notideal(Type *t)
{
if(t != T && t->etype == TIDEAL)
return T;
return t;
}
void void
dumpcase(Case *c0) dumpcase(Case *c0)
{ {
@ -254,8 +262,8 @@ sw0(Node *c, Type *place, int arg)
Type* Type*
sw1(Node *c, Type *place, int arg) sw1(Node *c, Type *place, int arg)
{ {
if(place == T) if(place != T)
return c->type; return notideal(c->type);
return place; return place;
} }
@ -605,7 +613,7 @@ exprswitch(Node *sw)
* walk the cases as appropriate for switch type * walk the cases as appropriate for switch type
*/ */
walkcases(sw, sw0, arg); walkcases(sw, sw0, arg);
t = sw->ntest->type; t = notideal(sw->ntest->type);
if(t == T) if(t == T)
t = walkcases(sw, sw1, arg); t = walkcases(sw, sw1, arg);
if(t == T) if(t == T)

4
test/bugs/bug157.go
View File

@ -27,6 +27,6 @@ func main() {
/* /*
bug155.go:20: syntax error near default bug157.go:20: syntax error near default
bug155.go:20: first switch statement must be a case bug157.go:20: first switch statement must be a case
*/ */

2
test/bugs/bug158.go → test/fixedbugs/bug158.go
View File

@ -22,5 +22,5 @@ func main() {
/* /*
bug156.go:14: fatal error: dowidth: unknown type: E-33 bug158.go:14: fatal error: dowidth: unknown type: E-33
*/ */

4
test/golden.out
View File

@ -109,10 +109,6 @@ bugs/bug157.go:20: syntax error near default
bugs/bug157.go:20: first switch statement must be a case bugs/bug157.go:20: first switch statement must be a case
BUG: should compile BUG: should compile
=========== bugs/bug158.go
bugs/bug158.go:14: fatal error: dowidth: unknown type: E-33
BUG: should compile
=========== fixedbugs/bug016.go =========== fixedbugs/bug016.go
fixedbugs/bug016.go:7: constant -3 overflows uint fixedbugs/bug016.go:7: constant -3 overflows uint