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PR79584, ICE in base_to_reg 

PR rtl-optimization/79584
	* lra-constraints.c (base_to_reg): Reload ad->base, the entire
	base, not ad->base_term, the reg within base.  Remove assertion
	that ad->base == ad->base_term.  Replace gen_int_mode using
	bogus mode with const0_rtx.

From-SVN: r245741
This commit is contained in:
Alan Modra 2017-02-26 09:14:41 +10:30 committed by Alan Modra
parent 888339e648
commit 0a001dcba6
2 changed files with 12 additions and 4 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2017-02-25 Alan Modra <amodra@gmail.com>
PR rtl-optimization/79584
* lra-constraints.c (base_to_reg): Reload ad->base, the entire
base, not ad->base_term, the reg within base. Remove assertion
that ad->base == ad->base_term. Replace gen_int_mode using
bogus mode with const0_rtx.
2017-02-25 Jakub Jelinek <jakub@redhat.com>
PR middle-end/79396

8
gcc/lra-constraints.c
View File

@ -2927,18 +2927,18 @@ base_to_reg (struct address_info *ad)
rtx_insn *insn;
rtx_insn *last_insn = get_last_insn();
lra_assert (ad->base == ad->base_term && ad->disp == ad->disp_term);
lra_assert (ad->disp == ad->disp_term);
cl = base_reg_class (ad->mode, ad->as, ad->base_outer_code,
get_index_code (ad));
new_reg = lra_create_new_reg (GET_MODE (*ad->base_term), NULL_RTX,
new_reg = lra_create_new_reg (GET_MODE (*ad->base), NULL_RTX,
cl, "base");
new_inner = simplify_gen_binary (PLUS, GET_MODE (new_reg), new_reg,
ad->disp_term == NULL
? gen_int_mode (0, ad->mode)
? const0_rtx
: *ad->disp_term);
if (!valid_address_p (ad->mode, new_inner, ad->as))
return NULL_RTX;
insn = emit_insn (gen_rtx_SET (new_reg, *ad->base_term));
insn = emit_insn (gen_rtx_SET (new_reg, *ad->base));
code = recog_memoized (insn);
if (code < 0)
{