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* [gcc(refs/users/meissner/heads/ieee)] Fix correct offset in ipa_get_jf_ancestor_result.
@ 2020-04-16 22:31 Michael Meissner
0 siblings, 0 replies; only message in thread
From: Michael Meissner @ 2020-04-16 22:31 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:7d4549b2cd209eb621453ce13be7ffd84ffa720a
commit 7d4549b2cd209eb621453ce13be7ffd84ffa720a
Author: Martin Liska <mliska@suse.cz>
Date: Fri Mar 20 11:01:13 2020 +0100
Fix correct offset in ipa_get_jf_ancestor_result.
PR ipa/94232
* ipa-cp.c (ipa_get_jf_ancestor_result): Use offset in bytes. Previously
build_ref_for_offset function was used and it transforms off to bytes
from bits.
Diff:
---
gcc/ChangeLog | 7 +++++++
gcc/ipa-cp.c | 5 +++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 563be357329..c7b3325876d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2020-03-20 Martin Liska <mliska@suse.cz>
+
+ PR ipa/94232
+ * ipa-cp.c (ipa_get_jf_ancestor_result): Use offset in bytes. Previously
+ build_ref_for_offset function was used and it transforms off to bytes
+ from bits.
+
2020-03-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/94266
diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
index 1c17010e369..c64e9104a94 100644
--- a/gcc/ipa-cp.c
+++ b/gcc/ipa-cp.c
@@ -1356,9 +1356,10 @@ ipa_get_jf_ancestor_result (struct ipa_jump_func *jfunc, tree input)
poly_int64 off = ipa_get_jf_ancestor_offset (jfunc);
if (known_eq (off, 0))
return input;
+ poly_int64 byte_offset = exact_div (off, BITS_PER_UNIT);
return build1 (ADDR_EXPR, TREE_TYPE (input),
- fold_build2 (MEM_REF, TREE_TYPE (TREE_TYPE (input)),
- input, build_int_cst (ptr_type_node, off)));
+ fold_build2 (MEM_REF, TREE_TYPE (TREE_TYPE (input)), input,
+ build_int_cst (ptr_type_node, byte_offset)));
}
else
return NULL_TREE;
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