diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2011-05-31 14:34:42 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-05-31 14:34:42 +0200 |
| commit | 35979cc235b090b2607d17598f73e6b079142e23 (patch) | |
| tree | 09569d02eebfbffca04471a13849aade4b23487c /gcc | |
| parent | 8f7de592d33e84831f3122a7f27ca05c7d308c69 (diff) | |
| download | gcc-35979cc235b090b2607d17598f73e6b079142e23.zip gcc-35979cc235b090b2607d17598f73e6b079142e23.tar.gz gcc-35979cc235b090b2607d17598f73e6b079142e23.tar.bz2 | |
re PR rtl-optimization/49235 (ICE: in int_mode_for_mode, at stor-layout.c:424 with -O -fno-delete-null-pointer-checks -fno-tree-scev-cprop -ftree-vectorize -fno-vect-cost-model)
PR rtl-optimization/49235
* tree-ssa-address.c (gen_addr_rtx): Ignore base if it is const0_rtx.
(create_mem_ref_raw): Create MEM_REF even if base is INTEGER_CST.
* gcc.dg/pr49235.c: New test.
From-SVN: r174478
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr49235.c | 25 | ||||
| -rw-r--r-- | gcc/tree-ssa-address.c | 6 |
4 files changed, 39 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4270d2d..c416db5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-05-31 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/49235 + * tree-ssa-address.c (gen_addr_rtx): Ignore base if it is const0_rtx. + (create_mem_ref_raw): Create MEM_REF even if base is INTEGER_CST. + 2011-05-31 Ira Rosen <ira.rosen@linaro.org> PR tree-optimization/49093 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 612fc17..7f9a50c 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-05-31 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/49235 + * gcc.dg/pr49235.c: New test. + 2011-05-31 Ira Rosen <ira.rosen@linaro.org> PR tree-optimization/49093 diff --git a/gcc/testsuite/gcc.dg/pr49235.c b/gcc/testsuite/gcc.dg/pr49235.c new file mode 100644 index 0000000..f1e589f --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr49235.c @@ -0,0 +1,25 @@ +/* PR rtl-optimization/49235 */ +/* { dg-do compile { target { int32plus } } } */ +/* { dg-options "-O -fno-delete-null-pointer-checks -fno-tree-scev-cprop -ftree-vectorize -fno-vect-cost-model -w" } */ + +void +foo (void) +{ + unsigned i; + unsigned *p = 0; + for (i = 0; i < 4; ++i) + *p++ = 0; + for (i = 0; i < 4; ++i) + *p++ = 0; +} + +void +bar (void) +{ + unsigned i; + unsigned *p = (unsigned *) (__UINTPTR_TYPE__) 0x12340000; + for (i = 0; i < 4; ++i) + *p++ = 0; + for (i = 0; i < 4; ++i) + *p++ = 0; +} diff --git a/gcc/tree-ssa-address.c b/gcc/tree-ssa-address.c index 2e6eabc..e3934e1 100644 --- a/gcc/tree-ssa-address.c +++ b/gcc/tree-ssa-address.c @@ -1,5 +1,5 @@ /* Memory address lowering and addressing mode selection. - Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010 + Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. This file is part of GCC. @@ -129,7 +129,7 @@ gen_addr_rtx (enum machine_mode address_mode, *addr = act_elem; } - if (base) + if (base && base != const0_rtx) { if (*addr) *addr = simplify_gen_binary (PLUS, address_mode, base, *addr); @@ -365,7 +365,7 @@ create_mem_ref_raw (tree type, tree alias_ptr_type, struct mem_address *addr, ??? As IVOPTs does not follow restrictions to where the base pointer may point to create a MEM_REF only if we know that base is valid. */ - if (TREE_CODE (base) == ADDR_EXPR + if ((TREE_CODE (base) == ADDR_EXPR || TREE_CODE (base) == INTEGER_CST) && (!index2 || integer_zerop (index2)) && (!addr->index || integer_zerop (addr->index))) return fold_build2 (MEM_REF, type, base, addr->offset); |