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Date: Mon, 12 May 2003 15:56:00 -0000
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From: Peter Barada <pbarada@mail.wm.sps.mot.com>
Subject: Re: target/8309: [3.2/? regression][m68k] m68k-elf-gcc -m5200 produces erroneous SImode set of short varaible on stack
Reply-To: Peter Barada <pbarada@mail.wm.sps.mot.com>
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The following reply was made to PR target/8309; it has been noted by GNATS.

From: Peter Barada <pbarada@mail.wm.sps.mot.com>
To: giovannibajo@libero.it, Peter.Barada@motorola.com, gcc-bugs@gcc.gnu.org,
   gcc-prs@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc:  
Subject: Re: target/8309: [3.2/? regression][m68k] m68k-elf-gcc -m5200 produces erroneous SImode set of short varaible on stack
Date: Mon, 12 May 2003 11:48:55 -0400

 >you reported this bug about 6 months ago. Can you confirm whether it's  
 >still present in 3.3 branch and mainline today? Thanks,
 
 Ok, I pulled out the prerelease of gcc-3.3 and I still see this problem:
 
 [pbarada: /tmp] > /tmp/m68k-elf-3.3/bin/m68k-elf-gcc -v
 Reading specs from /tmp/m68k-elf-3.3/lib/gcc-lib/m68k-elf/3.3/specs
 Configured with: /home/pbarada/work/cvs-wavemark/cross-linux-tools/gcc-3.3-20030508/configure --target=m68k-elf --prefix=/tmp/m68k-elf-3.3 --enable-languages=c --with-local-prefix=/tmp/m68k-elf-3.3/m68k-elf --without-headers --with-newlib --disable-shared --verbose
 Thread model: single
 gcc version 3.3 20030509 (prerelease)
 
 [pbarada: /tmp] > /tmp/m68k-elf-3.3/bin/m68k-elf-gcc -O2 -fno-common  -ffixed-a2 -m5200 -S -o yy.s yy.c -dp -da
 
 yy.c.11.gcse:
 
 (insn 230 228 231 9 0x4001f420 (set (reg:SI 94)
         (plus:SI (subreg:SI (reg/v:HI 40) 0)
             (const_int 1 [0x1]))) 100 {*addsi3_5200} (nil)
     (nil))
 
 (insn 231 230 232 9 0x4001f420 (set (reg/v:HI 40)
         (subreg:HI (reg:SI 94) 2)) 33 {*m68k.md:1024} (nil)
     (nil))
 
 
 yy.c.23.lreg:
 
 (insn 231 230 232 10 0x4001f420 (set (subreg:SI (reg/v:HI 40) 0)
         (plus:SI (subreg:SI (reg/v:HI 40) 0)
             (const_int 1 [0x1]))) 100 {*addsi3_5200} (nil)
     (nil))
 
 (insn 232 231 235 10 0x4001f420 (set (reg/f:SI 15 %sp)
         (plus:SI (reg/f:SI 15 %sp)
             (const_int 8 [0x8]))) 100 {*addsi3_5200} (nil)
     (nil))
 
 
 yy.c.24.greg:
 
 (note 230 228 371 10 NOTE_INSN_DELETED)
 
 (insn 371 230 231 10 (nil) (set (reg:SI 1 %d1)
         (const_int 1 [0x1])) 30 {*m68k.md:993} (nil)
     (nil))
 
 (insn 231 371 232 10 0x4001f420 (set (mem:SI (plus:SI (reg/f:SI 14 %a6)
                 (const_int -38 [0xffffffda])) [23 rotate S4 A16])
         (plus:SI (mem:SI (plus:SI (reg/f:SI 14 %a6)
                     (const_int -38 [0xffffffda])) [23 rotate S4 A16])
             (reg:SI 1 %d1))) 100 {*addsi3_5200} (nil)
     (nil))
 
 
 Note that in yy.c.11.gcse insn 231 was (set (mem:HI...)), and in
 yy.c.24.greg is (set (mem:SI...))