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mips: Implement Iex_CCall for nanoMIPS

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Implement Iex_CCall for nanoMIPS.

This fixes none/tests/nestedfns.

Patch by Stefan Maksimovic.
This commit is contained in:
Petar Jovanovic
2020-01-14 17:45:00 +00:00
parent 3501c118df
commit 8b809cdbba
1 changed files with 17 additions and 2 deletions
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19
VEX/priv/host_nanomips_isel.c
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@@ -877,8 +877,23 @@ static HReg iselWordExpr_R_wrk(ISelEnv * env, IRExpr * e)
}
case Iex_CCall: {
/* unimplemented yet */
vassert(0);
HReg r_dst = newVRegI(env);
UInt addToSp = 0;
RetLoc rloc = mk_RetLoc_INVALID();
/* Be very restrictive for now. Only 32-bit ints allowed for
args, and 32 bits for return type. Don't forget to change
the RetLoc if more return types are allowed in future. */
vassert(Ity_I32 == e->Iex.CCall.retty);
/* Marshal args, do the call, clear stack. */
doHelperCall(&rloc, env, NULL /*guard*/, e->Iex.CCall.cee,
e->Iex.CCall.retty, e->Iex.CCall.args);
vassert(is_sane_RetLoc(rloc));
vassert(rloc.pri == RLPri_Int);
vassert(addToSp == 0);
addInstr(env, mk_iMOVds_RR(r_dst, hregNANOMIPS_GPR4()));
return r_dst;
}
default: