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[Bug target/78101] PowerPC 64-bit little endian fusion failure with -O3 -mcpu=power9
- 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: Thu, 01 Dec 2016 19:26:47 +0000
- Subject: [Bug target/78101] PowerPC 64-bit little endian fusion failure with -O3 -mcpu=power9
- Auto-submitted: auto-generated
- References: <bug-78101-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78101
--- Comment #3 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Thu Dec 1 19:26:15 2016
New Revision: 243128
URL: https://gcc.gnu.org/viewcvs?rev=243128&root=gcc&view=rev
Log:
[gcc]
2016-12-01 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2016-11-17 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/78101
* config/rs6000/predicates.md (fusion_addis_mem_combo_load): Add
the appropriate checks for SFmode/DFmode load/stores in GPR
registers.
(fusion_addis_mem_combo_store): Likewise.
* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Rename
fusion_fpr_* to fusion_vsx_* and add in support for ISA 3.0 scalar
d-form instructions for traditional Altivec registers.
(emit_fusion_p9_load): Likewise.
(emit_fusion_p9_store): Likewise.
* config/rs6000/rs6000.md (p9 fusion store peephole2): Remove
early clobber from scratch register. Do not match if the register
being stored is the scratch register.
(fusion_vsx_<P:mode>_<FPR_FUSION:mode>_load): Rename fusion_fpr_*
to fusion_vsx_* and add in support for ISA 3.0 scalar d-form
instructions for traditional Altivec registers.
(fusion_fpr_<P:mode>_<FPR_FUSION:mode>_load): Likewise.
(fusion_vsx_<P:mode>_<FPR_FUSION:mode>_store): Likewise.
(fusion_fpr_<P:mode>_<FPR_FUSION:mode>_store): Likewise.
[gcc/testsuite]
2016-12-01 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk
2016-11-17 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/78101
* gcc.target/powerpc/fusion4.c: New test.
Added:
branches/gcc-6-branch/gcc/testsuite/gcc.target/powerpc/fusion4.c
- copied unchanged from r242983,
trunk/gcc/testsuite/gcc.target/powerpc/fusion4.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/config/rs6000/predicates.md
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