* [PATCH] tree-optimization/94266 - aovid propagating addresses of TARGET_MEM_REFs
@ 2020-03-23 8:38 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2020-03-23 8:38 UTC (permalink / raw)
To: gcc-patches
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
2020-03-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/94266
* tree-ssa-forwprop.c (pass_forwprop::execute): Do not propagate
addresses of TARGET_MEM_REFs.
---
gcc/tree-ssa-forwprop.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c
index 61b4eec271b..234c1f7dd7d 100644
--- a/gcc/tree-ssa-forwprop.c
+++ b/gcc/tree-ssa-forwprop.c
@@ -2712,6 +2712,7 @@ pass_forwprop::execute (function *fun)
if ((!base
|| !DECL_P (base)
|| decl_address_invariant_p (base))
+ && TREE_CODE (base) != TARGET_MEM_REF
&& !stmt_references_abnormal_ssa_name (stmt)
&& forward_propagate_addr_expr (lhs, rhs, true))
{
--
2.16.4
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