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Fix a bug in movmemsi in which couldn't handle sym(reg) expressions properly.

This commit is contained in:
matt 2012-02-02 13:32:17 +00:00
parent 005775381c
commit b7a0413860
1 changed files with 23 additions and 2 deletions
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25
gnu/dist/gcc4/gcc/config/vax/vax.c vendored
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@ -1545,8 +1545,29 @@ mkrtx(enum rtx_code code, enum machine_mode mode, rtx base, HOST_WIDE_INT off)
if (GET_CODE (base) == PLUS)
{
off += INTVAL (XEXP (base, 1));
base = XEXP (base, 0);
rtx a = XEXP (base, 0);
rtx b = XEXP (base, 1);
if (GET_CODE (b) == CONST_INT)
{
off += INTVAL (b);
base = a;
}
else if (GET_CODE (a) == REG && GET_CODE (b) == SYMBOL_REF)
{
if (off != 0)
{
base = gen_rtx_PLUS (Pmode, a, plus_constant(b, off));
off = 0;
}
}
else if (GET_CODE (a) == REG && GET_CODE (b) == PLUS)
{
off += INTVAL (XEXP (b, 1));
base = gen_rtx_PLUS (Pmode, a, plus_constant(XEXP (b, 0), off));
off = 0;
}
else
gcc_assert(0);
}
if (code == POST_INC)
tmp = gen_rtx_POST_INC (SImode, base);