PR23648 testcase

[Alan Modra]

PR 23648
* testsuite/ld-elf/pr23648.d,
* testsuite/ld-elf/pr23648.s,
* testsuite/ld-elf/pr23648.t: New test.

diff --git a/ld/testsuite/ld-elf/pr23648.d b/ld/testsuite/ld-elf/pr23648.d
new file mode 100644
index 0000000000..2990977a57
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr23648.d
@@ -0,0 +1,9 @@
+#ld: --gc-sections -T pr23648.t
+#target: [check_gc_sections_available]
+#xfail: frv-*-linux* lm32-*-linux*
+#nm: -B
+
+#failif
+#...
+.*test0
+#...
diff --git a/ld/testsuite/ld-elf/pr23648.s b/ld/testsuite/ld-elf/pr23648.s
new file mode 100644
index 0000000000..e82034d80c
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr23648.s
@@ -0,0 +1,15 @@
+ .text
+ .global entry, _entry
+entry:
+_entry:
+ .dc.a foo
+
+ .section .text.test0,"ax",%progbits
+ .global test0
+test0:
+ .dc.a 0
+
+ .section .text.test1,"ax",%progbits
+ .global test1
+test1:
+ .dc.a 1
diff --git a/ld/testsuite/ld-elf/pr23648.t b/ld/testsuite/ld-elf/pr23648.t
new file mode 100644
index 0000000000..5901fc7388
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr23648.t
@@ -0,0 +1,10 @@
+MEMORY { code : ORIGIN = 0, LENGTH = 8M }
+
+SECTIONS
+{
+ ENTRY (entry)
+ .text 1M : { *(.text*) } >code
+ /DISCARD/ : { *(*) }
+}
+
+foo = LENGTH (code) != 8M ? test0 : test1;