Skip testing structures with floating points

This patch skips some tests related to floating point in structs.exp
if gdb_skip_float_test return false.

gdb/testsuite:

2016-10-13  Yao Qi  <yao.qi@linaro.org>

	* gdb.base/structs.exp: Invoke gdb_skip_float_test, and do
	floating point tests if $skip_float_test is false.

2 files changed, 68 insertions, 56 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 21ee095..18dd701 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-10-13  Yao Qi  <yao.qi@linaro.org>
+
+	* gdb.base/structs.exp: Invoke gdb_skip_float_test, and do
+	floating point tests if $skip_float_test is false.
+
 2016-10-12  Luis Machado  <lgustavo@codesourcery.com>
 
 	* gdb.python/py-value.c (main): Check if argv is NULL before using it.
diff --git a/gdb/testsuite/gdb.base/structs.exp b/gdb/testsuite/gdb.base/structs.exp
index c525340..4fcef52 100644
--- a/gdb/testsuite/gdb.base/structs.exp
+++ b/gdb/testsuite/gdb.base/structs.exp
@@ -36,6 +36,8 @@ if [get_compiler_info] {
     return -1
 }
 
+set skip_float_test [gdb_skip_float_test]
+
 # Compile a variant of structs.c using TYPES to specify the type of
 # the first N struct elements (the remaining elements take the type of
 # the last TYPES field).  Run the compmiled program up to "main".
@@ -563,25 +565,27 @@ test_struct_calls 1
 test_struct_calls 2
 test_struct_returns 1
 
-# Approx size: 4, 8, ...
-start_structs_test { tf }
-test_struct_calls 1
-test_struct_calls 2
-test_struct_calls 3
-test_struct_returns 1
-test_struct_returns 2
-
-# Approx size: 8, 16, ...
-start_structs_test { td }
-test_struct_calls 1
-test_struct_calls 2
-test_struct_returns 1
-
-# Approx size: 16, 32, ...
-start_structs_test { tld }
-test_struct_calls 1
-test_struct_calls 2
-test_struct_returns 1
+if { !$skip_float_test } {
+    # Approx size: 4, 8, ...
+    start_structs_test { tf }
+    test_struct_calls 1
+    test_struct_calls 2
+    test_struct_calls 3
+    test_struct_returns 1
+    test_struct_returns 2
+
+    # Approx size: 8, 16, ...
+    start_structs_test { td }
+    test_struct_calls 1
+    test_struct_calls 2
+    test_struct_returns 1
+
+    # Approx size: 16, 32, ...
+    start_structs_test { tld }
+    test_struct_calls 1
+    test_struct_calls 2
+    test_struct_returns 1
+}
 
 # Approx size: 2+1=3, 4, ...
 start_structs_test { ts tc }
@@ -616,22 +620,24 @@ test_struct_returns 2
 start_structs_test { tll tc }
 test_struct_calls 2
 
-# Approx size: 4+1=5, 6, ...
-start_structs_test { tf tc }
-test_struct_calls 2
-test_struct_calls 3
-test_struct_calls 4
-test_struct_calls 5
-test_struct_calls 6
-test_struct_returns 2
-
-# Approx size: 8+1=9, 10, ...
-start_structs_test { td tc }
-test_struct_calls 2
-
-# Approx size: 16+1=17, 18, ...
-start_structs_test { tld tc }
-test_struct_calls 2
+if { !$skip_float_test } {
+    # Approx size: 4+1=5, 6, ...
+    start_structs_test { tf tc }
+    test_struct_calls 2
+    test_struct_calls 3
+    test_struct_calls 4
+    test_struct_calls 5
+    test_struct_calls 6
+    test_struct_returns 2
+
+    # Approx size: 8+1=9, 10, ...
+    start_structs_test { td tc }
+    test_struct_calls 2
+
+    # Approx size: 16+1=17, 18, ...
+    start_structs_test { tld tc }
+    test_struct_calls 2
+}
 
 # Approx size: (1+1)+2=4, 6, ...
 start_structs_test { tc ts }
@@ -660,30 +666,31 @@ test_struct_returns 2
 start_structs_test { tc tll }
 test_struct_calls 2
 
-# Approx size: (1+3)+4=8, 12, ...
-start_structs_test { tc tf }
-test_struct_calls 2
-test_struct_calls 3
-test_struct_calls 4
+if { !$skip_float_test } {
+    # Approx size: (1+3)+4=8, 12, ...
+    start_structs_test { tc tf }
+    test_struct_calls 2
+    test_struct_calls 3
+    test_struct_calls 4
 
-# Approx size: (1+7)+8=16, 24, ...
-start_structs_test { tc td }
-test_struct_calls 2
-
-# Approx size: (1+15)+16=32, 48, ...
-start_structs_test { tc tld }
-test_struct_calls 2
+    # Approx size: (1+7)+8=16, 24, ...
+    start_structs_test { tc td }
+    test_struct_calls 2
 
-# Some float combinations
+    # Approx size: (1+15)+16=32, 48, ...
+    start_structs_test { tc tld }
+    test_struct_calls 2
 
-# Approx size: 8+4=12, 16, ...
-start_structs_test { td tf }
-test_struct_calls 2
-test_struct_returns 2
+    # Some float combinations
 
-# Approx size: (4+4)+8=16, 32, ...
-start_structs_test { tf td }
-test_struct_calls 2
-test_struct_returns 2
+    # Approx size: 8+4=12, 16, ...
+    start_structs_test { td tf }
+    test_struct_calls 2
+    test_struct_returns 2
 
+    # Approx size: (4+4)+8=16, 32, ...
+    start_structs_test { tf td }
+    test_struct_calls 2
+    test_struct_returns 2
+}
 return 0