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| author | Jakub Jelinek <jakub@redhat.com> | 2009-04-24 08:58:02 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2009-04-24 08:58:02 +0200 |
| commit | 6216f94e37db8de5a846c5945f4aa5f4e32aaedf (patch) | |
| tree | b915c002276568ad8d30cd5e3340544d674fc103 /gcc/cselib.c | |
| parent | 6de7a512f0e76268d8ff69e51be80527c58d854b (diff) | |
| download | gcc-6216f94e37db8de5a846c5945f4aa5f4e32aaedf.zip gcc-6216f94e37db8de5a846c5945f4aa5f4e32aaedf.tar.gz gcc-6216f94e37db8de5a846c5945f4aa5f4e32aaedf.tar.bz2 | |
re PR rtl-optimization/39794 (Miscompile with -O2 -funroll-loops)
PR rtl-optimization/39794
* alias.c (canon_true_dependence): Add x_addr argument.
* rtl.h (canon_true_dependence): Adjust prototype.
* cse.c (check_dependence): Adjust canon_true_dependence callers.
* cselib.c (cselib_invalidate_mem): Likewise.
* gcse.c (compute_transp): Likewise.
* dse.c (scan_reads_nospill): Likewise.
(record_store, check_mem_read_rtx): Likewise. For non-const-or-frame
addresses pass base->val_rtx as mem_addr, for const-or-frame addresses
canon_base_addr of the group, plus optional offset.
(struct group_info): Rename canon_base_mem to
canon_base_addr.
(get_group_info): Set canon_base_addr to canon_rtx of base, not
canon_rtx of base_mem.
* gcc.dg/pr39794.c: New test.
From-SVN: r146669
Diffstat (limited to 'gcc/cselib.c')
| -rw-r--r-- | gcc/cselib.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/cselib.c b/gcc/cselib.c index 945a4a1..b040231 100644 --- a/gcc/cselib.c +++ b/gcc/cselib.c @@ -1,6 +1,6 @@ /* Common subexpression elimination library for GNU compiler. Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008 + 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. This file is part of GCC. @@ -1483,7 +1483,7 @@ cselib_invalidate_mem (rtx mem_rtx) } if (num_mems < PARAM_VALUE (PARAM_MAX_CSELIB_MEMORY_LOCATIONS) && ! canon_true_dependence (mem_rtx, GET_MODE (mem_rtx), mem_addr, - x, cselib_rtx_varies_p)) + x, NULL_RTX, cselib_rtx_varies_p)) { has_mem = true; num_mems++; |