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authorRichard Guenther <rguenther@suse.de>2012-05-18 12:09:49 +0000
committerRichard Biener <rguenth@gcc.gnu.org>2012-05-18 12:09:49 +0000
commit7595989bb427bc128b6752ee312d4d1b7b945f99 (patch)
tree9aae7ac764f8a15c859e29be337d0f35b644b903 /gcc/tree-vect-data-refs.c
parent917a52020ad1cc0d799476bffcc900a1a14824f5 (diff)
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re PR tree-optimization/53390 (ICE: tree check: expected integer_cst, have nop_expr in vect_compute_data_ref_alignmen on 32-bit x86 host)
2012-05-18 Richard Guenther <rguenther@suse.de> PR tree-optimization/53390 * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Ignore strided loads. * gcc.dg/torture/pr53390.c: New testcase. From-SVN: r187653
Diffstat (limited to 'gcc/tree-vect-data-refs.c')
-rw-r--r--gcc/tree-vect-data-refs.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index c8882ae..a5ed053 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -824,6 +824,11 @@ vect_compute_data_ref_alignment (struct data_reference *dr)
/* Initialize misalignment to unknown. */
SET_DR_MISALIGNMENT (dr, -1);
+ /* Strided loads perform only component accesses, misalignment information
+ is irrelevant for them. */
+ if (STMT_VINFO_STRIDE_LOAD_P (stmt_info))
+ return true;
+
misalign = DR_INIT (dr);
aligned_to = DR_ALIGNED_TO (dr);
base_addr = DR_BASE_ADDRESS (dr);