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| author | Richard Biener <rguenther@suse.de> | 2025-07-31 13:06:36 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2025-07-31 14:12:50 +0200 |
| commit | ff6f7d8e005ae94ffd55f1dba727e28531c3daf3 (patch) | |
| tree | 87a181282d9466e5f2b665deb6360493abd90617 /gcc | |
| parent | 0be8ffbc854410b65d45a72e843dc18b13fc7b0f (diff) | |
| download | gcc-ff6f7d8e005ae94ffd55f1dba727e28531c3daf3.zip gcc-ff6f7d8e005ae94ffd55f1dba727e28531c3daf3.tar.gz gcc-ff6f7d8e005ae94ffd55f1dba727e28531c3daf3.tar.bz2 | |
tree-optimization/121320 - UBSAN error in ao_ref_init_from_vn_reference
The multiplication by BITS_PER_UNIT should be done in poly_offset_int.
PR tree-optimization/121320
* tree-ssa-sccvn.cc (ao_ref_init_from_vn_reference): Convert
op->off to poly_offset_int before multiplying by
BITS_PER_UNIT.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-ssa-sccvn.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/tree-ssa-sccvn.cc b/gcc/tree-ssa-sccvn.cc index 45fb79c..a3117da 100644 --- a/gcc/tree-ssa-sccvn.cc +++ b/gcc/tree-ssa-sccvn.cc @@ -1219,7 +1219,7 @@ ao_ref_init_from_vn_reference (ao_ref *ref, offset = 0; } else - offset += pop->off * BITS_PER_UNIT; + offset += poly_offset_int (pop->off) * BITS_PER_UNIT; op0_p = NULL; break; } @@ -1270,7 +1270,7 @@ ao_ref_init_from_vn_reference (ao_ref *ref, if (maybe_eq (op->off, -1)) max_size = -1; else - offset += op->off * BITS_PER_UNIT; + offset += poly_offset_int (op->off) * BITS_PER_UNIT; break; case REALPART_EXPR: |