[Bug target/35664] unable to find a register to spill in class 'FP_REGS'
--- Comment #8 from ebotcazou at gcc dot gnu dot org 2010-09-22 08:31
---
Subject: Bug 35664
Author: ebotcazou
Date: Wed Sep 22 08:31:14 2010
New Revision: 164512
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=164512
Log:
PR target/35664
* config/sparc/constraints.md ('e'): Return NO_REGS if !TARGET_FPU.
('f'): Likewise.
Added:
trunk/gcc/testsuite/gcc.target/sparc/mnofpu.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/sparc/constraints.md
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS'
--- Comment #9 from ebotcazou at gcc dot gnu dot org 2010-09-22 08:34
---
Subject: Bug 35664
Author: ebotcazou
Date: Wed Sep 22 08:34:11 2010
New Revision: 164513
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=164513
Log:
PR target/35664
* config/sparc/constraints.md ('e'): Return NO_REGS if !TARGET_FPU.
('f'): Likewise.
Added:
branches/gcc-4_5-branch/gcc/testsuite/gcc.target/sparc/mnofpu.c
- copied unchanged from r164512,
trunk/gcc/testsuite/gcc.target/sparc/mnofpu.c
Modified:
branches/gcc-4_5-branch/gcc/ChangeLog
branches/gcc-4_5-branch/gcc/config/sparc/constraints.md
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS'
--- Comment #10 from ebotcazou at gcc dot gnu dot org 2010-09-22 08:37
---
Subject: Bug 35664
Author: ebotcazou
Date: Wed Sep 22 08:36:35 2010
New Revision: 164514
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=164514
Log:
PR target/35664
* config/sparc/constraints.md ('e'): Return NO_REGS if !TARGET_FPU.
('f'): Likewise.
Added:
branches/gcc-4_4-branch/gcc/testsuite/gcc.target/sparc/mnofpu.c
- copied unchanged from r164513,
trunk/gcc/testsuite/gcc.target/sparc/mnofpu.c
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/config/sparc/constraints.md
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS'
--- Comment #11 from ebotcazou at gcc dot gnu dot org 2010-09-22 08:40 --- In 4.4.5 and up. -- ebotcazou at gcc dot gnu dot org changed: What|Removed |Added URL||http://gcc.gnu.org/ml/gcc- ||patches/2010- ||09/msg01756.html Status|ASSIGNED|RESOLVED Known to fail|4.3.1 4.4.5 4.5.2 |4.3.1 4.4.4 4.5.2 Resolution||FIXED Target Milestone|--- |4.4.5 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS' (sparc-linux)
--- Comment #7 from ebotcazou at gcc dot gnu dot org 2010-09-20 22:14 --- Investigating. -- ebotcazou at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |ebotcazou at gcc dot gnu dot |dot org |org Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2010-09-20 22:14:55 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS' (sparc-linux)
--- Comment #4 from mikpe at it dot uu dot se 2010-09-09 12:06 --- This ICEs for me with 4.4-20100907 and the 4.5.1 release (-m32 -mno-fpu), but not with 4.5-20100902 or 4.6-20100904. -- mikpe at it dot uu dot se changed: What|Removed |Added CC||mikpe at it dot uu dot se http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS' (sparc-linux)
--- Comment #5 from mikpe at it dot uu dot se 2010-09-09 12:41 --- (In reply to comment #4) This ICEs for me with 4.4-20100907 and the 4.5.1 release (-m32 -mno-fpu), but not with 4.5-20100902 or 4.6-20100904. Oops, that was with a locally modified 4.5-20100902. A vanilla 4.5-20100902 still ICEs. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS' (sparc-linux)
--- Comment #6 from mikpe at it dot uu dot se 2010-09-09 15:57 --- This ICE stopped to appear on trunk with r162019: http://gcc.gnu.org/ml/gcc-cvs/2010-07/msg00373.html http://gcc.gnu.org/ml/gcc-patches/2010-07/msg00827.html Applying the generic bits of that to current 4.5 stops the ICE there too. I can't say if r162019 is a genuine bug fix or merely improves things a bit so that this test case no longer triggers the ICE. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS' (sparc-linux)
--- Comment #3 from lacombar at gmail dot com 2010-09-09 04:34 ---
Some random config of the linux kernel, as of 2.6.36-rc3 results on the
following
stat.c: In function 'show_stat':
stat.c:123:1: error: unable to find a register to spill in class 'FP_REGS'
stat.c:123:1: error: this is the insn:
(insn 43 49 50 3 stat.c:43 (set (reg:DI 281 [ D.14392_45-cpustat.user ])
(mem/s:DI (plus:SI (reg:SI 25 %i1 [orig:500 __ptr ] [500])
(reg:SI 15 %o7 [orig:128 D.16865 ] [128])) [7
D.14392_45-cpustat.user+0 S8 A64])) 46 {*movdi_insn_sp32} (expr_list:REG_EQUIV
(mem/s:DI (plus:SI (reg:SI 25 %i1 [orig:500 __ptr ] [500])
(reg:SI 15 %o7 [orig:128 D.16865 ] [128])) [7
D.14392_45-cpustat.user+0 S8 A64])
(nil)))
the (already) attached testcase still fails with gcc 4.5.2.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS' (sparc-linux)
--- Comment #2 from mstein dot lists at googlemail dot com 2008-04-02 16:55 --- Fails in trunk (133803) too -- mstein dot lists at googlemail dot com changed: What|Removed |Added CC||davem at redhat dot com, ||jakub at redhat dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
[Bug target/35664] unable to find a register to spill in class 'FP_REGS' (sparc-linux)
--- Comment #1 from mstein dot lists at googlemail dot com 2008-03-22 16:30 --- Created an attachment (id=15359) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15359action=view) delta-reduced -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664
