[v1,02/16] Add x86 FMV symbol tests

Message ID 20250203130421.2192732-3-alfie.richards@arm.com
State New
Headers
Series FMV refactor and ACLE compliance. |

Commit Message

Alfie Richards Feb. 3, 2025, 1:04 p.m. UTC
  This is for testing the x86 mangling of FMV versioned function
assembly names.

gcc/testsuite/ChangeLog:

	* g++.target/i386/mv-symbols1.C: New test.
	* g++.target/i386/mv-symbols2.C: New test.
	* g++.target/i386/mv-symbols3.C: New test.
	* g++.target/i386/mv-symbols4.C: New test.
	* g++.target/i386/mv-symbols5.C: New test.
	* g++.target/i386/mvc-symbols1.C: New test.
	* g++.target/i386/mvc-symbols2.C: New test.
	* g++.target/i386/mvc-symbols3.C: New test.
	* g++.target/i386/mvc-symbols4.C: New test.
---
 gcc/testsuite/g++.target/i386/mv-symbols1.C  | 68 ++++++++++++++++++++
 gcc/testsuite/g++.target/i386/mv-symbols2.C  | 56 ++++++++++++++++
 gcc/testsuite/g++.target/i386/mv-symbols3.C  | 44 +++++++++++++
 gcc/testsuite/g++.target/i386/mv-symbols4.C  | 50 ++++++++++++++
 gcc/testsuite/g++.target/i386/mv-symbols5.C  | 56 ++++++++++++++++
 gcc/testsuite/g++.target/i386/mvc-symbols1.C | 44 +++++++++++++
 gcc/testsuite/g++.target/i386/mvc-symbols2.C | 29 +++++++++
 gcc/testsuite/g++.target/i386/mvc-symbols3.C | 35 ++++++++++
 gcc/testsuite/g++.target/i386/mvc-symbols4.C | 23 +++++++
 9 files changed, 405 insertions(+)
 create mode 100644 gcc/testsuite/g++.target/i386/mv-symbols1.C
 create mode 100644 gcc/testsuite/g++.target/i386/mv-symbols2.C
 create mode 100644 gcc/testsuite/g++.target/i386/mv-symbols3.C
 create mode 100644 gcc/testsuite/g++.target/i386/mv-symbols4.C
 create mode 100644 gcc/testsuite/g++.target/i386/mv-symbols5.C
 create mode 100644 gcc/testsuite/g++.target/i386/mvc-symbols1.C
 create mode 100644 gcc/testsuite/g++.target/i386/mvc-symbols2.C
 create mode 100644 gcc/testsuite/g++.target/i386/mvc-symbols3.C
 create mode 100644 gcc/testsuite/g++.target/i386/mvc-symbols4.C
  

Patch

diff --git a/gcc/testsuite/g++.target/i386/mv-symbols1.C b/gcc/testsuite/g++.target/i386/mv-symbols1.C
new file mode 100644
index 00000000000..1290299aea5
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mv-symbols1.C
@@ -0,0 +1,68 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target("default")))
+int foo ()
+{
+  return 1;
+}
+
+__attribute__((target("arch=slm")))
+int foo ()
+{
+  return 3;
+}
+
+__attribute__((target("sse4.2")))
+int foo ()
+{
+  return 5;
+}
+
+__attribute__((target("sse4.2")))
+int foo (int)
+{
+  return 6;
+}
+
+__attribute__((target("arch=slm")))
+int foo (int)
+{
+  return 4;
+}
+
+__attribute__((target("default")))
+int foo (int)
+{
+  return 2;
+}
+
+int bar()
+{
+  return foo ();
+}
+
+int bar(int x)
+{
+  return foo (x);
+}
+
+/* When updating any of the symbol names in these tests, make sure to also
+   update any tests for their absence in mvc-symbolsN.C */
+
+/* { dg-final { scan-assembler-times "\n_Z3foov:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4.2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z7_Z3foovv\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3foovv, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3foovv,_Z3foov\.resolver\n" 1 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4.2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z7_Z3fooii\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3fooii, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3fooii,_Z3fooi\.resolver\n" 1 } } */
diff --git a/gcc/testsuite/g++.target/i386/mv-symbols2.C b/gcc/testsuite/g++.target/i386/mv-symbols2.C
new file mode 100644
index 00000000000..8b75565d78d
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mv-symbols2.C
@@ -0,0 +1,56 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target("default")))
+int foo ()
+{
+  return 1;
+}
+
+__attribute__((target("arch=slm")))
+int foo ()
+{
+  return 3;
+}
+
+__attribute__((target("sse4.2")))
+int foo ()
+{
+  return 5;
+}
+
+__attribute__((target("sse4.2")))
+int foo (int)
+{
+  return 6;
+}
+
+__attribute__((target("arch=slm")))
+int foo (int)
+{
+  return 4;
+}
+
+__attribute__((target("default")))
+int foo (int)
+{
+  return 2;
+}
+
+/* When updating any of the symbol names in these tests, make sure to also
+   update any tests for their absence in mvc-symbolsN.C */
+
+/* { dg-final { scan-assembler-times "\n_Z3foov:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4.2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3foovv, @gnu_indirect_function\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3foovv,_Z3foov\.resolver\n" 0 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4.2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3fooii, @gnu_indirect_function\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3fooii,_Z3fooi\.resolver\n" 0 } } */
diff --git a/gcc/testsuite/g++.target/i386/mv-symbols3.C b/gcc/testsuite/g++.target/i386/mv-symbols3.C
new file mode 100644
index 00000000000..a5cf3445a43
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mv-symbols3.C
@@ -0,0 +1,44 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target("default")))
+int foo ();
+
+__attribute__((target("arch=slm")))
+int foo ();
+
+__attribute__((target("sse4.2")))
+int foo ();
+
+__attribute__((target("sse4.2")))
+int foo (int);
+
+__attribute__((target("arch=slm")))
+int foo (int);
+
+__attribute__((target("default")))
+int foo (int);
+
+int bar()
+{
+  return foo ();
+}
+
+/* When updating any of the symbol names in these tests, make sure to also
+   update any tests for their absence in mvc-symbolsN.C */
+
+/* { dg-final { scan-assembler-times "\n_Z3foov:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4.2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z7_Z3foovv\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3foovv, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3foovv,_Z3foov\.resolver\n" 1 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4.2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3fooii, @gnu_indirect_function\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3fooii,_Z3fooi\.resolver\n" 0 } } */
diff --git a/gcc/testsuite/g++.target/i386/mv-symbols4.C b/gcc/testsuite/g++.target/i386/mv-symbols4.C
new file mode 100644
index 00000000000..bb10f126f67
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mv-symbols4.C
@@ -0,0 +1,50 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target("default")))
+int foo ()
+{
+  return 1;
+}
+
+__attribute__((target("arch=slm")))
+int foo ();
+
+__attribute__((target("sse4.2")))
+int foo ();
+
+__attribute__((target("sse4.2")))
+int foo (int);
+
+__attribute__((target("arch=slm")))
+int foo (int);
+
+__attribute__((target("default")))
+int foo (int)
+{
+  return 2;
+}
+
+int bar()
+{
+  return foo ();
+}
+
+/* When updating any of the symbol names in these tests, make sure to also
+   update any tests for their absence in mvc-symbolsN.C */
+
+/* { dg-final { scan-assembler-times "\n_Z3foov:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4.2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z7_Z3foovv\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3foovv, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3foovv,_Z3foov\.resolver\n" 1 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4.2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3fooii, @gnu_indirect_function\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3fooii,_Z3fooi\.resolver\n" 0 } } */
diff --git a/gcc/testsuite/g++.target/i386/mv-symbols5.C b/gcc/testsuite/g++.target/i386/mv-symbols5.C
new file mode 100644
index 00000000000..d36e4c304c2
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mv-symbols5.C
@@ -0,0 +1,56 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target("default")))
+int foo ();
+
+__attribute__((target("arch=slm")))
+int foo ()
+{
+  return 3;
+}
+
+__attribute__((target("sse4.2")))
+int foo ()
+{
+  return 5;
+}
+
+__attribute__((target("sse4.2")))
+int foo (int)
+{
+  return 6;
+}
+
+__attribute__((target("arch=slm")))
+int foo (int)
+{
+  return 4;
+}
+
+__attribute__((target("default")))
+int foo (int);
+
+int bar()
+{
+  return foo ();
+}
+
+/* When updating any of the symbol names in these tests, make sure to also
+   update any tests for their absence in mvc-symbolsN.C */
+
+/* { dg-final { scan-assembler-times "\n_Z3foov:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4.2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z7_Z3foovv\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3foovv, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3foovv,_Z3foov\.resolver\n" 1 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4.2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z7_Z3fooii, @gnu_indirect_function\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z7_Z3fooii,_Z3fooi\.resolver\n" 0 } } */
diff --git a/gcc/testsuite/g++.target/i386/mvc-symbols1.C b/gcc/testsuite/g++.target/i386/mvc-symbols1.C
new file mode 100644
index 00000000000..ea8c434c353
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mvc-symbols1.C
@@ -0,0 +1,44 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target_clones("default", "arch=slm", "sse4.2")))
+int foo ()
+{
+  return 1;
+}
+
+__attribute__((target_clones("sse4.2", "arch=slm", "default")))
+int foo (int)
+{
+  return 2;
+}
+
+int bar()
+{
+  return foo ();
+}
+
+int bar(int x)
+{
+  return foo (x);
+}
+
+/* When updating any of the symbol names in these tests, make sure to also
+   update any tests for their absence in mvc-symbolsN.C */
+
+/* { dg-final { scan-assembler-times "\n_Z3foov\.default:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4_2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z3foov\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3foov, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3foov,_Z3foov\.resolver\n" 1 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi.default:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4_2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z3fooi\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3fooi, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3fooi,_Z3fooi\.resolver\n" 1 } } */
diff --git a/gcc/testsuite/g++.target/i386/mvc-symbols2.C b/gcc/testsuite/g++.target/i386/mvc-symbols2.C
new file mode 100644
index 00000000000..84b54a980b3
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mvc-symbols2.C
@@ -0,0 +1,29 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target_clones("default", "arch=slm", "sse4.2")))
+int foo ()
+{
+  return 1;
+}
+
+__attribute__((target_clones("sse4.2", "arch=slm", "default")))
+int foo (int)
+{
+  return 2;
+}
+
+/* { dg-final { scan-assembler-times "\n_Z3foov\.default:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4_2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3foov, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3foov,_Z3foov\.resolver\n" 1 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi.default:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4_2:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3fooi, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3fooi,_Z3fooi\.resolver\n" 1 } } */
diff --git a/gcc/testsuite/g++.target/i386/mvc-symbols3.C b/gcc/testsuite/g++.target/i386/mvc-symbols3.C
new file mode 100644
index 00000000000..33927071028
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mvc-symbols3.C
@@ -0,0 +1,35 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target_clones("default", "arch=slm", "sse4.2")))
+int foo ();
+
+__attribute__((target_clones("sse4.2", "arch=slm", "default")))
+int foo (int);
+
+int bar()
+{
+  return foo ();
+}
+
+int bar(int x)
+{
+  return foo (x);
+}
+
+/* { dg-final { scan-assembler-times "\n_Z3foov\.default:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4_2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z3foov\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3foov, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3foov,_Z3foov\.resolver\n" 1 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi.default:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4_2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\tcall\t_Z3fooi\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3fooi, @gnu_indirect_function\n" 1 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3fooi,_Z3fooi\.resolver\n" 1 } } */
diff --git a/gcc/testsuite/g++.target/i386/mvc-symbols4.C b/gcc/testsuite/g++.target/i386/mvc-symbols4.C
new file mode 100644
index 00000000000..ed9bc8f3e16
--- /dev/null
+++ b/gcc/testsuite/g++.target/i386/mvc-symbols4.C
@@ -0,0 +1,23 @@ 
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O0" } */
+
+__attribute__((target_clones("default", "arch=slm", "sse4.2")))
+int foo ();
+
+__attribute__((target_clones("sse4.2", "arch=slm", "default")))
+int foo (int);
+
+/* { dg-final { scan-assembler-times "\n_Z3foov\.default:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.sse4_2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3foov\.resolver:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3foov, @gnu_indirect_function\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3foov,_Z3foov\.resolver\n" 0 } } */
+
+/* { dg-final { scan-assembler-times "\n_Z3fooi.default:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.arch_slm:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.sse4_2:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n_Z3fooi\.resolver:\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.type\t_Z3fooi, @gnu_indirect_function\n" 0 } } */
+/* { dg-final { scan-assembler-times "\n\t\.set\t_Z3fooi,_Z3fooi\.resolver\n" 0 } } */