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tccgen: gen_assign_cast(): cannot cast struct to scalar

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The case below previously was causing an assertion failure
in the target specific generator.

It probably is not incorrect not to allow this even if
gcc does.

    struct S { long b; };

    void f(struct S *x)
    {
        struct S y[1] = { *x };
    }
This commit is contained in:
grischka 2016-05-25 18:52:08 +02:00
parent 9e0e05eb4e
commit 1ca685f887
1 changed files with 3 additions and 0 deletions
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3
tccgen.c
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@ -2523,10 +2523,13 @@ static void gen_assign_cast(CType *dt)
case VT_LLONG: case VT_LLONG:
if (sbt == VT_PTR || sbt == VT_FUNC) { if (sbt == VT_PTR || sbt == VT_FUNC) {
tcc_warning("assignment makes integer from pointer without a cast"); tcc_warning("assignment makes integer from pointer without a cast");
} else if (sbt == VT_STRUCT) {
goto case_VT_STRUCT;
} }
/* XXX: more tests */ /* XXX: more tests */
break; break;
case VT_STRUCT: case VT_STRUCT:
case_VT_STRUCT:
tmp_type1 = *dt; tmp_type1 = *dt;
tmp_type2 = *st; tmp_type2 = *st;
tmp_type1.t &= ~(VT_CONSTANT | VT_VOLATILE); tmp_type1.t &= ~(VT_CONSTANT | VT_VOLATILE);