[Patch testsuite obvious] g++.dg/ext/pr57735.C should not run if the testsuite is explicitly passing -mfloat-abi=hard

[James Greenhalgh <james.greenhalgh@arm.com>]

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Hi,

g++.dg/ext/pr57735.C is failing for test runs which explicitly pass
-mfloat-abi=hard. Looking at the test, it seems the best fix would be
to check before adding -mfloat-abi=soft that we are not testing some other
float-abi. We also fail to check that it is OK to add -march=armv5te
and -marm.

Fixed using the same mechanisms we use elsewhere in the gcc.target/arm/
tests with the attached, applied as obvious as revision 224280.

Thanks,
James

---
gcc/testsuite/

2015-06-09  James Greenhalgh  <james.greenhalgh@arm.com>

	* g++.dg/ext/pr57735.C: Do not override -mfloat-abi directives
	passed by the testsuite driver.


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diff --git a/gcc/testsuite/g++.dg/ext/pr57735.C b/gcc/testsuite/g++.dg/ext/pr57735.C
index 0eb9500..a8f7d05 100644
--- a/gcc/testsuite/g++.dg/ext/pr57735.C
+++ b/gcc/testsuite/g++.dg/ext/pr57735.C
@@ -1,4 +1,7 @@
 /* { dg-do compile { target arm*-*-* } } */
+/* { dg-require-effective-target arm_arch_v5te_ok } */
+/* { dg-require-effective-target arm_arm_ok } */
+/* { dg-skip-if "do not override -mfloat-abi" { *-*-* } { "-mfloat-abi=*" } {"-mfloat-abi=soft" } } */
 /* { dg-options "-march=armv5te -marm  -mtune=xscale -mfloat-abi=soft -O1" } */
 
 typedef unsigned int size_t;