https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118682
Bug ID: 118682
Summary: Improve make_extraction for multiplication by odd
CONST_INTs
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
CC: acoplan at gcc dot gnu.org, jakub at gcc dot gnu.org,
law at gcc dot gnu.org, roger at nextmovesoftware dot com,
rsandifo at gcc dot gnu.org, segher at gcc dot gnu.org,
tnfchris at gcc dot gnu.org, uros at gcc dot gnu.org,
yunboni at smail dot nju.edu.cn
Depends on: 118638
Target Milestone: ---
Target: x86_64
+++ This bug was initially created as a clone of Bug #118638 +++
As mentioned in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118638#c16 for GCC
16
we should improve make_extraction for the case of multiplication by
CONST_INT (1 << x) + 1 where x >= len.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118638
[Bug 118638] [14 Regression] Miscompile with -Os and -O0/1/2/3 since r14-4810
