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| author | Richard Guenther <rguenther@suse.de> | 2010-08-24 13:25:25 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-08-24 13:25:25 +0000 |
| commit | d15adbeb3f73ab2765c7f700c576410445d144fd (patch) | |
| tree | ac7ce329d3a7ff7ad17267791793020655a605c9 /gcc/tree-ssa-alias.c | |
| parent | 1991282b0e0ebc9dd3daf38242da9d0ea7638d86 (diff) | |
| download | gcc-d15adbeb3f73ab2765c7f700c576410445d144fd.zip gcc-d15adbeb3f73ab2765c7f700c576410445d144fd.tar.gz gcc-d15adbeb3f73ab2765c7f700c576410445d144fd.tar.bz2 | |
re PR middle-end/45379 (~10% slowdown on test_fpu at revision 163278)
2010-08-24 Richard Guenther <rguenther@suse.de>
PR middle-end/45379
* tree-ssa-address.c (create_mem_ref_raw): Drop to MEM_REF
if addr->index is NULL or zero.
* tree-ssa-alias.c (indirect_refs_may_alias_p): Handle
TARGET_MEM_REF more properly.
(indirect_ref_may_alias_decl_p): Likewise.
* emit-rtl.c (set_mem_attributes_minus_bitpos): Keep TARGET_MEM_REFs.
* alias.c (ao_ref_from_mem): Handle TARGET_MEM_REF more
properly.
From-SVN: r163519
Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index 849c250..a8d580e 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -672,10 +672,16 @@ indirect_ref_may_alias_decl_p (tree ref1 ATTRIBUTE_UNUSED, tree base1, if (TREE_CODE (base1) == TARGET_MEM_REF) { - if (!TMR_BASE (base1) - || !POINTER_TYPE_P (TMR_BASE (base1))) + if (TMR_BASE (base1)) + { + if (!POINTER_TYPE_P (TREE_TYPE (TMR_BASE (base1)))) + return true; + ptr1 = TMR_BASE (base1); + } + else if (TMR_SYMBOL (base1)) + ptr1 = build_fold_addr_expr (TMR_SYMBOL (base1)); + else return true; - ptr1 = TMR_BASE (base1); } else ptr1 = TREE_OPERAND (base1, 0); @@ -808,20 +814,32 @@ indirect_refs_may_alias_p (tree ref1 ATTRIBUTE_UNUSED, tree base1, if (TREE_CODE (base1) == TARGET_MEM_REF) { - if (!TMR_BASE (base1) - || !POINTER_TYPE_P (TMR_BASE (base1))) + if (TMR_BASE (base1)) + { + if (!POINTER_TYPE_P (TREE_TYPE (TMR_BASE (base1)))) + return true; + ptr1 = TMR_BASE (base1); + } + else if (TMR_SYMBOL (base1)) + ptr1 = build_fold_addr_expr (TMR_SYMBOL (base1)); + else return true; - ptr1 = TMR_BASE (base1); } else ptr1 = TREE_OPERAND (base1, 0); if (TREE_CODE (base2) == TARGET_MEM_REF) { - if (!TMR_BASE (base2) - || !POINTER_TYPE_P (TMR_BASE (base2))) + if (TMR_BASE (base2)) + { + if (!POINTER_TYPE_P (TREE_TYPE (TMR_BASE (base2)))) + return true; + ptr2 = TMR_BASE (base2); + } + else if (TMR_SYMBOL (base2)) + ptr2 = build_fold_addr_expr (TMR_SYMBOL (base2)); + else return true; - ptr2 = TMR_BASE (base2); } else ptr2 = TREE_OPERAND (base2, 0); |