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[Bug target/83862] powerpc: ICE in signbit testcase
- From: "meissner at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 23 Jan 2018 15:07:31 +0000
- Subject: [Bug target/83862] powerpc: ICE in signbit testcase
- Auto-submitted: auto-generated
- References: <bug-83862-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83862
--- Comment #3 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Tue Jan 23 15:07:00 2018
New Revision: 256987
URL: https://gcc.gnu.org/viewcvs?rev=256987&root=gcc&view=rev
Log:
[gcc]
2018-01-23 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2018-01-22 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/83862
* config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
no longer used.
* config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
* config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
128-bit to produce an UNSPEC move to get the double word with the
signbit and then a shift directly to do signbit.
(signbit<mode>2_dm): Replace old IEEE 128-bit signbit
implementation with a new version that just does either a direct
move or a regular move. Move memory interface to separate insns.
Move insns so they are next to the expander.
(signbit<mode>2_dm_mem_be): New combiner insns to combine load
with signbit move. Split big and little endian case.
(signbit<mode>2_dm_mem_le): Likewise.
(signbit<mode>2_dm_<su>ext): Delete, no longer used.
(signbit<mode>2_dm2): Likewise.
[gcc/testsuite]
2018-01-23 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2018-01-22 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/83862
* gcc.target/powerpc/pr83862.c: New test.
Added:
branches/gcc-6-branch/gcc/testsuite/gcc.target/powerpc/pr83862.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/config/rs6000/rs6000-protos.h
branches/gcc-6-branch/gcc/config/rs6000/rs6000.c
branches/gcc-6-branch/gcc/config/rs6000/rs6000.md
branches/gcc-6-branch/gcc/testsuite/ChangeLog