re PR target/52155 (loongson.h requires -flax-vector-conversions with newlib targets)

gcc/testsuite/
	PR target/52155
	* gcc.target/mips/mips.exp (mips-dg-options): Handle xfail and target.
	* gcc.target/mips/loongson-shift-count-truncated-1.c: Force -mlong64
	for MIPS ELF.

From-SVN: r183979

gcc/testsuite/ChangeLog

 2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>
 
+	PR target/52155
+	* gcc.target/mips/mips.exp (mips-dg-options): Handle xfail and target.
+	* gcc.target/mips/loongson-shift-count-truncated-1.c: Force -mlong64
+	for MIPS ELF.
+
+2012-02-07  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	PR target/52152
 	* objc.dg/stabs-1.m: XFAIL for mips*-*-elf*.
 

gcc/testsuite/gcc.target/mips/loongson-shift-count-truncated-1.c

@@ -5,6 +5,8 @@
    seem any good reason for it to, given that the Loongson processors
    do not support MIPS16.  */
 /* { dg-options "isa=loongson -mhard-float -mno-mips16 -O1" } */
+/* See PR 52155.  */
+/* { dg-options "isa=loongson -mhard-float -mno-mips16 -O1 -mlong64" { mips*-*-elf* && ilp32 } } */
 
 #include "loongson.h"
 #include <assert.h>

gcc/testsuite/gcc.target/mips/mips.exp

@@ -855,6 +855,15 @@ proc mips-dg-options { args } {
     # Information about this run.
     global mips_base_options
 
+    if { [llength $args] >= 3 } {
+        switch { [dg-process-target [lindex $args 2]] } {
+            "S" { }
+            "N" { return }
+            "F" { error "[lindex $args 0]: `xfail' not allowed here" }
+            "P" { error "[lindex $args 0]: `xfail' not allowed here" }
+        }
+    }
+
     # Start out with the default option state.
     array set options [array get mips_base_options]