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Re: [PATCH] Fix undefined behaviour in arc port 

Re: [PATCH] Fix undefined behaviour in arc port
        * config/arc/arc.c (arc_legitimize_reload_address): Fix stupid
        thinko in last change.
        * config/arc/constraints.md (C2a): Fix typos in last change.

From-SVN: r228219
This commit is contained in:
Jeff Law 2015-09-28 13:27:29 -06:00
parent d95fc58421
commit 4e671509d9
2 changed files with 2 additions and 2 deletions
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2
gcc/config/arc/arc.c
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@ -9322,7 +9322,7 @@ arc_legitimize_reload_address (rtx *p, machine_mode mode, int opnum,
shift = scale >> 1;
offset_base
= ((offset + (256 << shift))
& ((HOST_WIDE_INT)(-512U << shift)));
& ((HOST_WIDE_INT)((unsigned HOST_WIDE_INT) -512 << shift)));
/* Sometimes the normal form does not suit DImode. We
could avoid that by using smaller ranges, but that
would give less optimized code when SImode is

2
gcc/config/arc/constraints.md
View File

@ -195,7 +195,7 @@
"@internal
Unconditional two-address add / sub constant"
(and (match_code "const_int")
(match_test "ival == HOST_WIDE_INT (HOST_WIDE_INT_M1U << 31)
(match_test "ival == (HOST_WIDE_INT) (HOST_WIDE_INT_M1U << 31)
|| (ival >= -0x4000 && ival <= 0x4000
&& ((ival >= 0 ? ival : -ival)
<= 0x7ff * (ival & -ival)))")))