[Bug target/21297] [4.0/4.1 Regression] buf[i+i]=0 stores buf[i] when -O2

[cvs-commit at gcc dot gnu dot org]

--- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-05-03 
13:01 ---
Subject: Bug 21297

CVSROOT:/cvs/gcc
Module name:gcc
Changes by: [EMAIL PROTECTED]   2005-05-03 12:58:13

Modified files:
gcc: ChangeLog 
gcc/config/i386: i386.c 
gcc/testsuite  : ChangeLog 
Added files:
gcc/testsuite/gcc.c-torture/execute: 20050502-2.c 

Log message:
PR target/21297
* config/i386/i386.c (legitimize_address): When canonicalizing
ASHIFT into MULT, multiply by 1  shift_count instead of
1  log2 (shift_count).

* gcc.c-torture/execute/20050502-2.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gccr1=2.8572r2=2.8573
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gccr1=1.816r2=1.817
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gccr1=1.5433r2=1.5434
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050502-2.c.diff?cvsroot=gccr1=NONEr2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21297

[Bug target/21297] [4.0/4.1 Regression] buf[i+i]=0 stores buf[i] when -O2

[jakub at gcc dot gnu dot org]

--- Additional Comments From jakub at gcc dot gnu dot org  2005-05-02 13:04 
---
This is a target bug.

-- 
   What|Removed |Added

 AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
   |dot org |
 Status|NEW |ASSIGNED
  Component|middle-end  |target
   Last reconfirmed|2005-04-30 16:00:20 |2005-05-02 13:04:19
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21297

[Bug target/21297] [4.0/4.1 Regression] buf[i+i]=0 stores buf[i] when -O2

[jakub at gcc dot gnu dot org]

--- Additional Comments From jakub at gcc dot gnu dot org  2005-05-02 13:42 
---
Patch here: http://gcc.gnu.org/ml/gcc-patches/2005-05/msg00073.html

-- 
   What|Removed |Added

   Keywords||patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21297