icc7 on redhat 8.0 (was Re: MPICH-GM 1.2.5..9.)

On Fri, Feb 21, 2003 at 10:20:58AM -0700, Christopher Jordan wrote:
> 
> We also get this behavior at our site, runing icc 7.0 on RedHat 8.0. Is 
> there any known fix for this? Not using the optimizations kind of defeats 
> the purpose of the Intel compiler ...

the assembly code on RedHat 7.3 is DIFFERENT from the one from 
RedHat 8.0 (flawed) if I use optimisation >=1. It is the same 
when using -O0...

~ > icc -O1 i.c -S -o O1.rh73
~ > icc -O1 i.c -S -o O1.rh80

[tru@xiii ~]$ diff -u O1.rh73 O1.rh80 
[tru@xiii ~]$ diff -u O1.rh73 O1.rh80  
--- O1.rh73     Fri Feb 21 20:06:50 2003
+++ O1.rh80     Fri Feb 21 20:06:11 2003
@@ -1,8 +1,8 @@
 # -- Machine type IA32
 # mark_description "Intel(R) C++ Compiler for 32-bit applications, Version 7.0   Build 20030129Z";
-# mark_description "-long_double -Xlinker -rpath -Xlinker /opt/intel/compiler70/ia32/lib -O1 -S -o O1.rh73";
+# mark_description "-long_double -Xlinker -rpath -Xlinker /opt/intel/compiler70/ia32/lib -O1 -S -o O1.rh80";
        .ident "Intel(R) C++ Compiler for 32-bit applications, Version 7.0   Build 20030129Z"
-       .ident "-long_double -Xlinker -rpath -Xlinker /opt/intel/compiler70/ia32/lib -O1 -S -o O1.rh73"
+       .ident "-long_double -Xlinker -rpath -Xlinker /opt/intel/compiler70/ia32/lib -O1 -S -o O1.rh80"
        .file "i.c"
        .text
        .data
@@ -46,7 +46,7 @@
         subl      $3, %esp                                      #7.1
         andl      $-8, %esp                                     #7.1
         addl      $4, %esp                                      #7.1
-        push      $16415                                        #13.49
+        push      $0                                            #13.49
         push      $__STRING.0                                   #13.49
         pushl     stderr                                        #13.49
         call      fprintf                                       #13.49

Tru
-- 
Dr Tru Huynh          | http://www.pasteur.fr/recherche/unites/Binfs/
mailto:[email protected] | tel/fax +33 1 45 68 87 37/19
Institut Pasteur, 25-28 rue du Docteur Roux, 75724 Paris CEDEX 15 France