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* [Bug target/90599] Inefficient code for __builtin_memset
[not found] <bug-90599-4@http.gcc.gnu.org/bugzilla/>
@ 2021-08-02 17:52 ` hjl.tools at gmail dot com
0 siblings, 0 replies; only message in thread
From: hjl.tools at gmail dot com @ 2021-08-02 17:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90599
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|NEW |RESOLVED
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for GCC 12 with r12-285:
commit 985b3a6837dee7001e6b618f073ed74f0edf5787
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Jun 10 09:57:15 2019 -0700
Generate offset adjusted operation for op_by_pieces operations
Add an overlap_op_by_pieces_p target hook for op_by_pieces operations
between two areas of memory to generate one offset adjusted operation
in the smallest integer mode for the remaining bytes on the last piece
operation of a memory region to avoid doing more than one smaller
operations.
Pass the RTL information from the previous iteration to m_constfn in
op_by_pieces operation so that builtin_memset_[read|gen]_str can
generate the new RTL from the previous RTL.
*** This bug has been marked as a duplicate of bug 90773 ***
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[not found] <bug-90599-4@http.gcc.gnu.org/bugzilla/>
2021-08-02 17:52 ` [Bug target/90599] Inefficient code for __builtin_memset hjl.tools at gmail dot com
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