[Bug tree-optimization/39245] New: FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized "nasty_local" 0

[Bug tree-optimization/39245] New: FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized "nasty_local" 0

[danglin at gcc dot gnu dot org]

Executing on host: /home/dave/gnu/gcc/objdir/gcc/xgcc
-B/home/dave/gnu/gcc/objdi
r/gcc/ /home/dave/gnu/gcc/gcc/gcc/testsuite/gcc.dg/memcpy-1.c   -O2
-fdump-tree-
optimized -S  -o memcpy-1.s    (timeout = 300)
PASS: gcc.dg/memcpy-1.c (test for excess errors)
FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized "nasty_local" 0

-bash-3.2$ less memcpy-1.c.123t.optimized

;; Function test (test)

Analyzing Edge Insertions.
test (struct a a)
{
  struct a nasty_local;

<bb 2>:
  nasty_local = a;
  return nasty_local.a;

}

-bash-3.2$ ./xgcc -B./ -v
Reading specs from ./specs
Target: arm-none-linux-gnueabi
Configured with: ../gcc/configure --host=arm-none-linux-gnueabi
--target=arm-none-linux-gnueabi --build=arm-none-linux-gnueabi
--disable-stage1-checking --enable-languages=c,c++,fortran --enable-shared
--enable-threads --disable-multilib --disable-libmudflap --disable-libssp
--enable-symvers=gnu --enable-__cxa_atexit --disable-libstdcxx-pch
--disable-checking --prefix=/home/dave/opt/gnu/gcc/gcc-4.4.0
--with-gmp=/home/dave/opt/gnu
Thread model: posix
gcc version 4.4.0 20090218 (experimental) [trunk revision 144268] (GCC)


-- 
           Summary: FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized
                    "nasty_local" 0
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
 GCC build triplet: arm-none-linux-gnueabi
  GCC host triplet: arm-none-linux-gnueabi
GCC target triplet: arm-none-linux-gnueabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39245

[Bug tree-optimization/39245] FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized "nasty_local" 0

[dominiq at lps dot ens dot fr]

------- Comment #1 from dominiq at lps dot ens dot fr  2009-02-19 16:52 -------
Fails also on powerpc-apple-darwin* since at least revision 132577, see for
instance:

http://gcc.gnu.org/ml/gcc-testresults/2009-02/msg01742.html
http://gcc.gnu.org/ml/gcc-testresults/2009-02/msg01095.html

The test passes with -m64.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39245

[Bug tree-optimization/39245] FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized "nasty_local" 0

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-02-20 09:49 -------
Probably the same issue as on AVR?

/* PR36598 AVR fail maybe due to cost metrics */


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39245

[Bug tree-optimization/39245] FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized "nasty_local" 0

[dominiq at lps dot ens dot fr]

------- Comment #3 from dominiq at lps dot ens dot fr  2009-02-20 10:46 -------
This test fails also on powerpc64-unknown-linux-gnu with -m32, see:

http://gcc.gnu.org/ml/gcc-testresults/2009-02/msg01915.html

This pr seems to be a duplicate of PR36598 for ppc, arm, and avr.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39245

[Bug tree-optimization/39245] FAIL: gcc.dg/memcpy-1.c scan-tree-dump-times optimized "nasty_local" 0

[danglin at gcc dot gnu dot org]

------- Comment #4 from danglin at gcc dot gnu dot org  2009-02-20 18:05 -------
--param sra-max-structure-size=32 results in optimal code.

*** This bug has been marked as a duplicate of 36598 ***


-- 

danglin at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39245