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fix bug154; tweak bug153 exit status

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R=ken
OCL=29448
CL=29448
This commit is contained in:
Russ Cox 2009-05-27 10:16:13 -07:00
parent 5f460b38f9
commit 18890eebbf
3 changed files with 11 additions and 13 deletions
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17
src/cmd/gc/const.c
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@ -13,16 +13,20 @@ static Val copyval(Val);
/*
* truncate float literal fv to 32-bit or 64-bit precision
* according to type.
* according to type; return truncated value.
*/
void
truncfltlit(Mpflt *fv, Type *t)
Mpflt*
truncfltlit(Mpflt *oldv, Type *t)
{
double d;
float f;
Mpflt *fv;
if(t == T)
return;
return oldv;
fv = mal(sizeof *fv);
*fv = *oldv;
// convert large precision literal floating
// into limited precision (float64 or float32)
@ -41,6 +45,7 @@ truncfltlit(Mpflt *fv, Type *t)
mpmovecflt(fv, d);
break;
}
return fv;
}
/*
@ -154,7 +159,7 @@ convlit1(Node *n, Type *t, int explicit)
else if(ct != CTFLT)
goto bad;
overflow(n->val, t);
truncfltlit(n->val.u.fval, t);
n->val.u.fval = truncfltlit(n->val.u.fval, t);
} else if(et == TSTRING && ct == CTINT && explicit)
n->val = tostr(n->val);
else
@ -607,7 +612,7 @@ ret:
// truncate precision for non-ideal float.
if(v.ctype == CTFLT && n->type->etype != TIDEAL)
truncfltlit(v.u.fval, n->type);
n->val.u.fval = truncfltlit(v.u.fval, n->type);
return;
settrue:

0
test/bugs/bug154.go → test/fixedbugs/bug154.go
View File

7
test/golden.out
View File

@ -112,13 +112,6 @@ BUG: should compile
BUG: errchk: bugs/bug153.go:9: error message does not match 'nil'
bugs/bug153.go:9: fatal error: dowidth: unknown type: E-34
=========== bugs/bug154.go
r0 = 3.141592
r1 = 3.141592025756836
r0 and r1 should be the same
panic PC=xxx
BUG: should not panic
=========== fixedbugs/bug016.go
fixedbugs/bug016.go:7: constant -3 overflows uint