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[testsuite] Require -march=i[45]86 on several tests


When I switched the Solaris 2/x86 port from i386 to pentium4 for GCC
4.5, I noticed that several tests suddenly started passing.  Further
investigation revealed that they seem to need -march=i486 or i586 at
least.  The following patch makes sure the necessary option is passed
for i?86-*-* targets, but only with ilp32 to make sure not to interfere
with bi-arch targets like Solaris 10+/x86.

Tested with manual runtest invocations: they fail with --target_board
'unix{-march=i386}' and pass without.

Ok for mainline, 4.4 and 4.5 branches?

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


2010-06-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* gcc.dg/tree-ssa/ltrans-1.c: Add -march=i486 for i?86-*-* && ilp32.
	* gcc.dg/tree-ssa/ltrans-3.c: Likewise.
	* gcc.dg/tree-ssa/ltrans-4.c: Likewise.
	* gcc.dg/tree-ssa/ltrans-5.c: Likewise.
	* gcc.dg/tree-ssa/ltrans-6.c: Likewise.
	* gcc.dg/tree-ssa/ltrans-8.c: Likewise.
	* gcc.dg/tree-ssa/vrp47.c: Add -march=i586 for i?86-*-* && ilp32.
	* gfortran.dg/ltrans-7.f90: Add -march=i486 for i?86-*-* && ilp32.

diff -r f01280e81de7 gcc/testsuite/gcc.dg/tree-ssa/ltrans-1.c
--- a/gcc/testsuite/gcc.dg/tree-ssa/ltrans-1.c	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ltrans-1.c	Sun Jun 06 21:56:52 2010 +0200
@@ -1,5 +1,6 @@
 /* { dg-do compile } */ 
 /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */
+/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32} } } */
 /* { dg-require-effective-target size32plus } */
 
 double u[1782225];
diff -r f01280e81de7 gcc/testsuite/gcc.dg/tree-ssa/ltrans-3.c
--- a/gcc/testsuite/gcc.dg/tree-ssa/ltrans-3.c	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ltrans-3.c	Sun Jun 06 21:56:52 2010 +0200
@@ -1,5 +1,6 @@
 /* { dg-do compile } */ 
 /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */
+/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32} } } */
 /* { dg-require-effective-target size32plus } */
 
 double u[1782225];
diff -r f01280e81de7 gcc/testsuite/gcc.dg/tree-ssa/ltrans-4.c
--- a/gcc/testsuite/gcc.dg/tree-ssa/ltrans-4.c	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ltrans-4.c	Sun Jun 06 21:56:52 2010 +0200
@@ -1,5 +1,6 @@
 /* { dg-do compile } */ 
 /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */
+/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32} } } */
 /* { dg-require-effective-target size32plus } */
 
 double u[1782225];
diff -r f01280e81de7 gcc/testsuite/gcc.dg/tree-ssa/ltrans-5.c
--- a/gcc/testsuite/gcc.dg/tree-ssa/ltrans-5.c	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ltrans-5.c	Sun Jun 06 21:56:52 2010 +0200
@@ -1,5 +1,6 @@
 /* { dg-do compile { target { size32plus } } } */ 
 /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */
+/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32} } } */
 
 int foo ()
 {
diff -r f01280e81de7 gcc/testsuite/gcc.dg/tree-ssa/ltrans-6.c
--- a/gcc/testsuite/gcc.dg/tree-ssa/ltrans-6.c	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ltrans-6.c	Sun Jun 06 21:56:52 2010 +0200
@@ -1,5 +1,6 @@
 /* { dg-do compile } */ 
 /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */
+/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32} } } */
 /* { dg-require-effective-target size32plus } */
 
 
diff -r f01280e81de7 gcc/testsuite/gcc.dg/tree-ssa/ltrans-8.c
--- a/gcc/testsuite/gcc.dg/tree-ssa/ltrans-8.c	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ltrans-8.c	Sun Jun 06 21:56:52 2010 +0200
@@ -1,5 +1,6 @@
 /* { dg-do compile } */ 
 /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */
+/* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32} } } */
 double foo(double *a)
 {
        int i,j;
diff -r f01280e81de7 gcc/testsuite/gcc.dg/tree-ssa/vrp47.c
--- a/gcc/testsuite/gcc.dg/tree-ssa/vrp47.c	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp47.c	Sun Jun 06 21:56:52 2010 +0200
@@ -5,6 +5,7 @@
    this.  */
 /* { dg-do compile { target { ! "mips*-*-* s390*-*-*  avr-*-*" } } } */
 /* { dg-options "-O2 -fdump-tree-vrp -fdump-tree-dom" } */
+/* { dg-options "-O2 -fdump-tree-vrp -fdump-tree-dom -march=i586" { target { i?86-*-* && ilp32 } } } */
 
 int h(int x, int y)
 {
diff -r f01280e81de7 gcc/testsuite/gfortran.dg/ltrans-7.f90
--- a/gcc/testsuite/gfortran.dg/ltrans-7.f90	Thu Jun 03 20:43:53 2010 +0200
+++ b/gcc/testsuite/gfortran.dg/ltrans-7.f90	Sun Jun 06 21:56:52 2010 +0200
@@ -1,5 +1,6 @@
 ! { dg-do compile }
 ! { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" }
+! { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all -march=i486" { target { i?86-*-* && ilp32 } } }
 
 Program FOO
   IMPLICIT INTEGER	(I-N)


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