[Bug driver/38864] New: Incorrect interaction between --with-arch=native and -mARCH

[Bug driver/38864] New: Incorrect interaction between --with-arch=native and -mARCH

[daney at gcc dot gnu dot org]

LAST_UPDATED: Fri Jan  9 01:21:29 UTC 2009 (revision 143198)

$ ../trunk/configure --with-arch=native --disable-java-awt --without-x
--enable-__cxa_atexit --disable-libgomp --disable-static
--enable-languages=c,c++,java --disable-fixed-point --enable-checking=release
--with-gmp=/home/daney/mp --with-mpfr=/home/daney/mp --disable-libmudflap
--disable-multilib

As noted in these test results:

http://gcc.gnu.org/ml/gcc-testresults/2009-01/msg01307.html

We have FAIL: gcc.target/mips/dpaq_sa_l_w.c (test for excess errors)

Here is the log of the failure:
Executing on host: /home/daney/gccsvn/trunk-build/gcc/xgcc
-B/home/daney/gccsvn/trunk-build/gcc/ /home/daney/gccsvn/trunk/gcc/testsuite/\
gcc.target/mips/dpaq_sa_l_w.c   -DNOMIPS16=__attribute__((nomips16)) -mabi=32
-mips32r2 -mgp32 -O2 -mdsp -S  -o dpaq_sa_l_w.s    (timeou\
t = 300)
/home/daney/gccsvn/trunk/gcc/testsuite/gcc.target/mips/dpaq_sa_l_w.c:5: error:
fixed-point types not supported for this target
/home/daney/gccsvn/trunk/gcc/testsuite/gcc.target/mips/dpaq_sa_l_w.c:6: error:
fixed-point types not supported for this target
.
.
.

The native CPU is an R5000

My untested hypothesis is that configuring with --with-arch=native has
incorrect interaction with -m* from the gcc command line.


-- 
           Summary: Incorrect interaction between --with-arch=native and -
                    mARCH
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: daney at gcc dot gnu dot org
 GCC build triplet: mips64-unknown-linux-gnu
  GCC host triplet: mips64-unknown-linux-gnu
GCC target triplet: mips64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864

[Bug driver/38864] Incorrect interaction between --with-arch=native and -mARCH

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-01-16 10:00 -------
This is at most a documentation problem.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864

[Bug driver/38864] Incorrect interaction between --with-arch=native and -mARCH

[nemet at gcc dot gnu dot org]

------- Comment #2 from nemet at gcc dot gnu dot org  2009-01-23 21:19 -------
The fixed-point tests fail to compile when configure with
--disable-fixed-point.

I think the easiest would be to extend Richard's new infrastructure with a new
keyword and then skip these tests completely.  I take a look if this sounds
good.


-- 

nemet at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nemet at gcc dot gnu dot
                   |                            |org, rsandifo at gcc dot gnu
                   |                            |dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864

[Bug driver/38864] Incorrect interaction between --with-arch=native and -mARCH

[nemet at gcc dot gnu dot org]

------- Comment #3 from nemet at gcc dot gnu dot org  2009-01-24 02:47 -------
It was actually Richard's mips.exp rewrite that removed { target { fixed_point
} }  from these tests.

Richard, was this intentional?  It seems to me that since fixed-point is not
dependent on a command-line flag (-mdsp is orthogonal) the effective-target
check is correct here.

Should I revert it like this:

Index: fixed-vector-type.c 
=================================================================== 
--- fixed-vector-type.c (revision 143450) 
+++ fixed-vector-type.c (working copy) 
@@ -1,5 +1,5 @@ 
 /* Test vector fixed-point instructions */ 
-/* { dg-do compile } */ 
+/* { dg-do compile { target { fixed_point } } } */ 
 /* { dg-options "-mdspr2 -O2" } */ 
 /* { dg-final { scan-assembler-times "\taddq_s.ph\t" 2 } } */ 
 /* { dg-final { scan-assembler-times "\tsubq_s.ph\t" 2 } } */ 
Index: fixed-scalar-type.c 
=================================================================== 
--- fixed-scalar-type.c (revision 143450) 
+++ fixed-scalar-type.c (working copy) 
@@ -1,5 +1,5 @@ 
 /* Test scalar fixed-point instructions */ 
-/* { dg-do compile } */ 
+/* { dg-do compile { target { fixed_point } } } */ 
 /* { dg-options "-mdspr2 -O2" } */ 
 /* { dg-final { scan-assembler-times "\taddu\t" 10 } } */ 
 /* { dg-final { scan-assembler-times "\tsubu\t" 10 } } */ 
Index: dpaq_sa_l_w.c 
=================================================================== 
--- dpaq_sa_l_w.c       (revision 143450) 
+++ dpaq_sa_l_w.c       (working copy) 
@@ -1,4 +1,4 @@ 
-/* { dg-do compile } */ 
+/* { dg-do compile { target { fixed_point } } } */ 
 /* { dg-options "-O2 -mgp32 -mdsp" } */ 
 /* { dg-final { scan-assembler-times "\tdpaq_sa.l.w\t\\\$ac" 3 } } */ 

Index: dpsq_sa_l_w.c 
=================================================================== 
--- dpsq_sa_l_w.c       (revision 143450) 
+++ dpsq_sa_l_w.c       (working copy) 
@@ -1,4 +1,4 @@ 
-/* { dg-do compile } */ 
+/* { dg-do compile { target { fixed_point } } } */ 
 /* { dg-options "-O2 -mgp32 -mdsp" } */ 
 /* { dg-final { scan-assembler-times "\tdpsq_sa.l.w\t\\\$ac" 2 } } */ 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864

[Bug driver/38864] Incorrect interaction between --with-arch=native and -mARCH

[rdsandiford at googlemail dot com]

------- Comment #4 from rdsandiford at googlemail dot com  2009-01-24 09:48 -------
Subject: Re:  Incorrect interaction between --with-arch=native and -mARCH

"nemet at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:
> ------- Comment #3 from nemet at gcc dot gnu dot org  2009-01-24 02:47 -------
> It was actually Richard's mips.exp rewrite that removed { target { fixed_point
> } }  from these tests.
>
> Richard, was this intentional?  It seems to me that since fixed-point is not
> dependent on a command-line flag (-mdsp is orthogonal) the effective-target
> check is correct here.
>
> Should I revert it like this:

Yeah.  Sorry, I hadn't realised you could actually disable _cc1_ support
for fixed point.  (I knew you could disable libgcc support, but that's
not a problem for these compile-only tests.)

Richard


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864

[Bug driver/38864] Fixed-point tests under gcc.target/mips are missing the fixed_point target check

[nemet at gcc dot gnu dot org]

------- Comment #5 from nemet at gcc dot gnu dot org  2009-01-27 07:25 -------
Adjust the summary.


-- 

nemet at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Incorrect interaction       |Fixed-point tests under
                   |between --with-arch=native  |gcc.target/mips are missing
                   |and -mARCH                  |the fixed_point target check


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864

[Bug testsuite/38864] Fixed-point tests under gcc.target/mips are missing the fixed_point target check

[nemet at gcc dot gnu dot org]

------- Comment #6 from nemet at gcc dot gnu dot org  2009-01-27 07:42 -------
Subject: Bug 38864

Author: nemet
Date: Tue Jan 27 07:41:46 2009
New Revision: 143694

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143694
Log:
        PR testsuite/38864
        * gcc.target/mips/fixed-vector-type.c: Add { target { fixed_point} }
        to dg-do compile.
        * gcc.target/mips/fixed-scalar-type.c: Likewise.
        * gcc.target/mips/dpaq_sa_l_w.c: Likewise.
        * gcc.target/mips/dpsq_sa_l_w.c: Likewise.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/mips/dpaq_sa_l_w.c
    trunk/gcc/testsuite/gcc.target/mips/dpsq_sa_l_w.c
    trunk/gcc/testsuite/gcc.target/mips/fixed-scalar-type.c
    trunk/gcc/testsuite/gcc.target/mips/fixed-vector-type.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864

[Bug testsuite/38864] Fixed-point tests under gcc.target/mips are missing the fixed_point target check

[nemet at gcc dot gnu dot org]

------- Comment #7 from nemet at gcc dot gnu dot org  2009-01-27 07:46 -------
Fixed.


-- 

nemet at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38864