[Bug optimization/12630] [3.4 regression] Various unrecognizable insns and ICEs at -O3

["danglin at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12630


danglin at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|FIXED                       |


------- Additional Comments From danglin at gcc dot gnu dot org  2003-10-20 17:08 -------
There's still a problem.  I haven't normally being testing the bootstrap
with ada.  With ada, the following error occurs:

stage1/xgcc -Bstage1/ -B/home/dave/opt/gnu/hppa-linux/bin/ -c -g -O2      -gnatp
g -gnata -I- -I. -Iada -I../../gcc/gcc/ada ../../gcc/gcc/ada/sem_prag.adb -o ada
/sem_prag.o
../../gcc/gcc/ada/sem_prag.adb: In function `sem_prag.analyze_pragma':

../../gcc/gcc/ada/sem_prag.adb:3559: error: unable to find a register to spill i
n class `R1_REGS'
../../gcc/gcc/ada/sem_prag.adb:3559: error: this is the insn:
(insn 10661 16193 10665 1947 ../../gcc/gcc/ada/sem_prag.adb:7511 (parallel [
            (set (mem/s:BLK (reg/f:SI 2767) [101 sem__scope_suppress+0 S11 A8])
                (mem/s/u:BLK (reg/f:SI 2769) [1 S11 A8]))
            (clobber (scratch:SI))
            (clobber (scratch:SI))
            (clobber (reg:SI %r21 [2773]))
            (clobber (reg:SI %r20 [2774]))
            (clobber (reg:SI %r19 [2775]))
            (use (const_int 11 [0xb]))
            (use (const_int 1 [0x1]))
        ]) 72 {movstrsi_internal} (nil)
    (expr_list:REG_UNUSED (scratch:SI)
        (expr_list:REG_UNUSED (scratch:SI)
            (expr_list:REG_UNUSED (reg:SI %r21 [2773])
                (expr_list:REG_UNUSED (reg:SI %r20 [2774])
                    (expr_list:REG_UNUSED (reg:SI %r19 [2775])
                        (nil)))))))
+===========================GNAT BUG DETECTED==============================+
| 3.4 20031020 (experimental) (hppa-unknown-linux-gnu) GCC error:          |
| in spill_failure, at reload1.c:1862                                      |
| Error detected at ../../gcc/gcc/ada/sem_prag.adb:3559:7                  |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact gcc or gnatmake command that you entered.              |
| Also include sources listed below in gnatchop format                     |
| (concatenated together with no headers between files).                   |
+==========================================================================+

Switching from match_dup to match_scratch introduced a need for two additional
temporaries.  We only have one register in the class R1_REGS.