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| author | Alexandre Oliva <aoliva@redhat.com> | 2015-06-10 00:37:39 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2015-06-10 00:37:39 +0000 |
| commit | 0f9f9784ad1bb59e89f03e5cb00ebc22f500c059 (patch) | |
| tree | 44bd2d64a442165a5d4162e8caf3157b8f5557a6 /gcc/alias.c | |
| parent | a79b6a3044aa97f8ba6b491ee1796f318c68285a (diff) | |
| download | gcc-0f9f9784ad1bb59e89f03e5cb00ebc22f500c059.zip gcc-0f9f9784ad1bb59e89f03e5cb00ebc22f500c059.tar.gz gcc-0f9f9784ad1bb59e89f03e5cb00ebc22f500c059.tar.bz2 | |
Revert "[PR64164] Drop copyrename, use coalescible partition as base when optimizing."
This reverts commit c66acc7cedd89bfd22124caec44b8427c9082dac.
Conflicts:
gcc/ChangeLog
gcc/testsuite/ChangeLog
From-SVN: r224310
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index 408d058..bc6a0ee 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -2542,19 +2542,6 @@ nonoverlapping_memrefs_p (const_rtx x, const_rtx y, bool loop_invariant) if (! DECL_P (exprx) || ! DECL_P (expry)) return 0; - /* If we refer to different gimple registers, or one gimple register - and one non-gimple-register, we know they can't overlap. First, - gimple registers don't have their addresses taken. Now, there - could be more than one stack slot for (different versions of) the - same gimple register, but we can presumably tell they don't - overlap based on offsets from stack base addresses elsewhere. - It's important that we don't proceed to DECL_RTL, because gimple - registers may not pass DECL_RTL_SET_P, and make_decl_rtl won't be - able to do anything about them since no SSA information will have - remained to guide it. */ - if (is_gimple_reg (exprx) || is_gimple_reg (expry)) - return exprx != expry; - /* With invalid code we can end up storing into the constant pool. Bail out to avoid ICEing when creating RTL for this. See gfortran.dg/lto/20091028-2_0.f90. */ |