As in 33257, I was playing around with division+remainder code, and found
another case gcc didn't optimize. I was using signed and unsigned variants,
and tried a couple different constants. The test case was optimized properly
with the constant 3 (signed or unsigned math), and with the constant 128 if
unsigned math was used. Using 128 with signed math, the test didn't get
optimized away.
--
Summary: guaranteed-true arithmetic test not optimized away
depending on constant
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: raeburn at raeburn dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33258
