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| author | Bingfeng Mei <bmei@broadcom.com> | 2010-10-21 15:16:01 +0000 |
|---|---|---|
| committer | Bingfeng Mei <meibf@gcc.gnu.org> | 2010-10-21 15:16:01 +0000 |
| commit | 4fcf718a6127fc70a3d39011b1c98d829c5fc2df (patch) | |
| tree | b60f8e8fc13fc82f35ef0189c4468147049ea922 | |
| parent | ae1f6fcec0d9a0a0551578915a7a83c39be894aa (diff) | |
| download | gcc-4fcf718a6127fc70a3d39011b1c98d829c5fc2df.zip gcc-4fcf718a6127fc70a3d39011b1c98d829c5fc2df.tar.gz gcc-4fcf718a6127fc70a3d39011b1c98d829c5fc2df.tar.bz2 | |
re PR rtl-optimization/45834 (Redundant inter-loop edges in DDG)
2010-10-21 Bingfeng Mei <bmei@broadcom.com>
PR c/45834
* alias.c (true_dependence_1): Remove obsolete check for QImode.
(may_alias_p): Ditto.
From-SVN: r165781
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/alias.c | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8d110cf..51228ec 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-10-21 Bingfeng Mei <bmei@broadcom.com> + + PR c/45834 + * alias.c (true_dependence_1): Remove obsolete check for QImode. + (may_alias_p): Ditto. + 2010-10-21 Martin Jambor <mjambor@suse.cz> PR tree-optimization/45875 diff --git a/gcc/alias.c b/gcc/alias.c index 298f39b..2e0ac06 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -2459,7 +2459,7 @@ true_dependence_1 (const_rtx mem, enum machine_mode mem_mode, rtx mem_addr, /* We cannot use aliases_everything_p to test MEM, since we must look at MEM_ADDR, rather than XEXP (mem, 0). */ - if (mem_mode == QImode || GET_CODE (mem_addr) == AND) + if (GET_CODE (mem_addr) == AND) return 1; /* ??? In true_dependence we also allow BLKmode to alias anything. Why @@ -2655,7 +2655,7 @@ may_alias_p (const_rtx mem, const_rtx x) /* We cannot use aliases_everything_p to test MEM, since we must look at MEM_ADDR, rather than XEXP (mem, 0). */ - if (GET_MODE (mem) == QImode || GET_CODE (mem_addr) == AND) + if (GET_CODE (mem_addr) == AND) return 1; if (fixed_scalar_and_varying_struct_p (mem, x, mem_addr, x_addr, |