* [Bug target/106708] [rs6000] 64bit constant generation with oris xoris
[not found] <bug-106708-4@http.gcc.gnu.org/bugzilla/>
@ 2022-12-07 2:39 ` guojiufu at gcc dot gnu.org
2022-12-19 10:32 ` cvs-commit at gcc dot gnu.org
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From: guojiufu at gcc dot gnu.org @ 2022-12-07 2:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106708
--- Comment #1 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
PR93178 also mentioned the "li,oris" case.
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[not found] <bug-106708-4@http.gcc.gnu.org/bugzilla/>
2022-12-07 2:39 ` [Bug target/106708] [rs6000] 64bit constant generation with oris xoris guojiufu at gcc dot gnu.org
@ 2022-12-19 10:32 ` cvs-commit at gcc dot gnu.org
2023-05-10 9:10 ` guojiufu at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2022-12-19 10:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106708
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jiu Fu Guo <guojiufu@gcc.gnu.org>:
https://gcc.gnu.org/g:97a8e88cd7d22562c0ea4f73687d3c93c21e12fb
commit r13-4771-g97a8e88cd7d22562c0ea4f73687d3c93c21e12fb
Author: Jiufu Guo <guojiufu@linux.ibm.com>
Date: Mon Dec 19 16:40:01 2022 +0800
rs6000: use li;x?oris to build constant
For constant C:
If '(c & 0xFFFFFFFF00008000ULL) == 0xFFFFFFFF00008000ULL' or say:
32(1) || 16(x) || 1(1) || 15(x), using "li; xoris" would be ok.
If '(c & 0xFFFFFFFF80008000ULL) == 0x80000000ULL' or say:
32(0) || 1(1) || 15(x) || 1(0) || 15(x), we could use "li; oris" to
build constant 'C'.
Here N(M) means N continuous bit M, x for M means it is ok for either
1 or 0; '||' means concatenation.
This patch update rs6000_emit_set_long_const to support those constants.
PR target/106708
gcc/ChangeLog:
* config/rs6000/rs6000.cc (rs6000_emit_set_long_const): Add using
"li; x?oris" to build constant.
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/pr106708.c: New test.
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[not found] <bug-106708-4@http.gcc.gnu.org/bugzilla/>
2022-12-07 2:39 ` [Bug target/106708] [rs6000] 64bit constant generation with oris xoris guojiufu at gcc dot gnu.org
2022-12-19 10:32 ` cvs-commit at gcc dot gnu.org
@ 2023-05-10 9:10 ` guojiufu at gcc dot gnu.org
2023-05-17 2:13 ` cvs-commit at gcc dot gnu.org
2023-10-08 2:30 ` guojiufu at gcc dot gnu.org
4 siblings, 0 replies; 5+ messages in thread
From: guojiufu at gcc dot gnu.org @ 2023-05-10 9:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106708
--- Comment #3 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
With the trunk, for
*arg++ = 0x98765432ULL;
*arg++ = 0xffffffff7cdeab55ULL;
are expected.
For *arg++ = 0xffffffff65430000ULL; lis+xoris are not committed to the trunk
yet.
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[not found] <bug-106708-4@http.gcc.gnu.org/bugzilla/>
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2023-05-10 9:10 ` guojiufu at gcc dot gnu.org
@ 2023-05-17 2:13 ` cvs-commit at gcc dot gnu.org
2023-10-08 2:30 ` guojiufu at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2023-05-17 2:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106708
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jiu Fu Guo <guojiufu@gcc.gnu.org>:
https://gcc.gnu.org/g:5eb7d560626e427673c53723ed430c4bb5721f33
commit r14-923-g5eb7d560626e427673c53723ed430c4bb5721f33
Author: Jiufu Guo <guojiufu@linux.ibm.com>
Date: Sat Dec 10 21:18:51 2022 +0800
rs6000: use lis;xoris to build constant
For constant C:
If '(c & 0xFFFFFFFF0000FFFFULL) == 0xFFFFFFFF00000000' or say:
32(1) || 1(0) || 15(x) || 16(0), we could use "lis; xoris" to build.
Here N(M) means N continuous bit M, x for M means it is ok for either
1 or 0; '||' means concatenation.
This patch update rs6000_emit_set_long_const to support those constants.
Compare with previous version:
https://gcc.gnu.org/pipermail/gcc-patches/2022-December/608292.html
This patch updates test function names only.
Bootstrap and regtest pass on ppc64{,le}.
PR target/106708
gcc/ChangeLog:
* config/rs6000/rs6000.cc (rs6000_emit_set_long_const): Support
building
constants through "lis; xoris".
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/pr106708.c: Add test function.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug target/106708] [rs6000] 64bit constant generation with oris xoris
[not found] <bug-106708-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2023-05-17 2:13 ` cvs-commit at gcc dot gnu.org
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4 siblings, 0 replies; 5+ messages in thread
From: guojiufu at gcc dot gnu.org @ 2023-10-08 2:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106708
Jiu Fu Guo <guojiufu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #5 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
Patch ready on the trunk.
^ permalink raw reply [flat|nested] 5+ messages in thread