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i386: Fix various testsuite issues

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on 32bit long long support was sometimes broken.  This fixes
code-gen for long long values in switches, disables a x86-64 specific
testcase and avoid an undefined shift amount.  It comments out
a bitfield test involving long long bitfields > 32 bit; with GCC layout
they can straddle multiple words and code generation isn't prepared
for this.
This commit is contained in:
Michael Matz
2016-12-15 17:41:16 +01:00
parent 3980e07fe5
commit cd9514abc4
3 changed files with 64 additions and 18 deletions
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29
i386-gen.c
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@ -694,14 +694,27 @@ ST_FUNC void gjmp_addr(int a)
ST_FUNC void gtst_addr(int inv, int a)
{
inv ^= (vtop--)->c.i;
a -= ind + 2;
if (a == (char)a) {
g(inv - 32);
g(a);
} else {
g(0x0f);
oad(inv - 16, a - 4);
int v = vtop->r & VT_VALMASK;
if (v == VT_CMP) {
inv ^= (vtop--)->c.i;
a -= ind + 2;
if (a == (char)a) {
g(inv - 32);
g(a);
} else {
g(0x0f);
oad(inv - 16, a - 4);
}
} else if ((v & ~1) == VT_JMP) {
if ((v & 1) != inv) {
gjmp_addr(a);
gsym(vtop->c.i);
} else {
gsym(vtop->c.i);
o(0x05eb);
gjmp_addr(a);
}
vtop--;
}
}