loongson-simd.c: Update comment to clarify the need for mips_nanlegacy target.

2015-02-04  Robert Suchanek  <robert.suchanek@imgtec.com>

	* gcc.target/mips/loongson-simd.c: Update comment to clarify the need
	for mips_nanlegacy target.

From-SVN: r220393

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ac316fd931bbe9e619065fee18d67e54c0f71600..09184097073aa17dc2ff57859b3474c1352d57c8 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-02-04  Robert Suchanek  <robert.suchanek@imgtec.com>
+
+       * gcc.target/mips/loongson-simd.c: Update comment to clarify the need
+       for mips_nanlegacy target.
+
 2015-02-04  Ilya Enkovich  <ilya.enkovich@intel.com>
 
        * gcc.target/i386/chkp-hidden-def.c: New.

diff --git a/gcc/testsuite/gcc.target/mips/loongson-simd.c b/gcc/testsuite/gcc.target/mips/loongson-simd.c
index 949632e3cadb806828e2216b938920b1aaa2011c..3d72e93db8d54fe3ec7eda18342d598657290839 100644 (file)
--- a/gcc/testsuite/gcc.target/mips/loongson-simd.c
+++ b/gcc/testsuite/gcc.target/mips/loongson-simd.c
@@ -21,7 +21,10 @@ along with GCC; see the file COPYING3.  If not see
 /* { dg-do run } */
 /* loongson.h does not handle or check for MIPS16ness or
    microMIPSness.  There doesn't seem any good reason for it to, given
-   that the Loongson processors do not support either.  */
+   that the Loongson processors do not support either.  The effective target
+   mips_nanlegacy is required for a toolchain without the legacy NaN support
+   because inclusion of some system headers e.g. stdint.h will fail due to not
+   finding stubs-o32_hard.h.  */
 /* { dg-require-effective-target mips_nanlegacy } */
 /* { dg-options "isa=loongson -mhard-float -mno-micromips -mno-mips16 -flax-vector-conversions" } */