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Ignore clobbers in modref
author
Jan Hubicka
<jh@suse.cz>
Tue, 22 Sep 2020 20:36:01 +0000
(22:36 +0200)
committer
Jan Hubicka
<jh@suse.cz>
Tue, 22 Sep 2020 20:36:01 +0000
(22:36 +0200)
* ipa-modref.c (analyze_stmt): Ignore gimple clobber.
gcc/ipa-modref.c
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diff --git
a/gcc/ipa-modref.c
b/gcc/ipa-modref.c
index d195354e927a277c2874516485dc46e9ebb77d4c..fe277d88a169bcd1bf056dbf78204b5c70a5689b 100644
(file)
--- a/
gcc/ipa-modref.c
+++ b/
gcc/ipa-modref.c
@@
-552,6
+552,9
@@
analyze_store (gimple *, tree, tree op, void *data)
static bool
analyze_stmt (modref_summary *summary, gimple *stmt, bool ipa)
{
+ /* There is no need to record clobbers. */
+ if (gimple_clobber_p (stmt))
+ return false;
/* Analyze all loads and stores in STMT. */
walk_stmt_load_store_ops (stmt, summary,
analyze_load, analyze_store);