This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[PATCH,vect] ppc cost model options


Dorit,

	I am enabling VMX auto-vectorization for AIX 5.3.  Most testcases
succeed.  You can see the failures in the recent testresults.

	One set of failures is due to the ppc costmodel using -mcpu=7400.
AIX does not run on that processor and does not support that option to
invoke the AIX assembler properly.

	I would like to change the compile-only option to -mcpu=970, which
is supported by AIX.  Is there a reason to prefer 7400 instead of 970?

Thanks, David

	  * gcc.dg/vect/costmodel/ppc/ppc-costmodel-vect.exp: Use
	-mcpu=970 instead of 7400.

Index: ppc-costmodel-vect.exp
===================================================================
--- ppc-costmodel-vect.exp	(revision 129469)
+++ ppc-costmodel-vect.exp	(working copy)
@@ -49,7 +49,7 @@
 } else {
     if [is-effective-target ilp32] {
         # Specify a cpu that supports VMX for compile-only tests.
-        lappend DEFAULT_VECTCFLAGS "-mcpu=7400"
+        lappend DEFAULT_VECTCFLAGS "-mcpu=970"
     }
     set dg-do-what-default compile
 }


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]