arm: testsuite: restore dg-do-what-default in mve.exp

On Arm, running

	make check-gcc RUNTESTFLAGS="dwarf2.exp=pr43190.c"

with a target list of "arm-qemu{,-mthumb}"

results in no errors.  But running it with

	make check-gcc RUNTESTFLAGS="{mve,dwarf2}.exp=pr43190.c"

results in unresolved tests while running the thumb variant.  The problem
is that mve.exp is changing dg-do-what-default to "assemble", but failing
to restore the original value once its tests are complete.  The result is
that all subsequent tests run with an incorrect underlying default value.

The fix is easy - save dg-do-what-default and restore it after the tests
are complete.

gcc/testsuite/ChangeLog:

	* gcc.target/arm/mve/mve.exp: Save dg-do-what-default before
	changing it.  Restore it once done.

diff --git a/gcc/testsuite/gcc.target/arm/mve/mve.exp b/gcc/testsuite/gcc.target/arm/mve/mve.exp
index a5d8511afdacce99c1dab701a416b3dcc9cb4ac0..9dc56c9b2d9fce4b3f249fb9215e4a2649c6b911 100644 (file)
--- a/gcc/testsuite/gcc.target/arm/mve/mve.exp
+++ b/gcc/testsuite/gcc.target/arm/mve/mve.exp
@@ -35,6 +35,7 @@ global dg_runtest_extra_prunes
 set dg_runtest_extra_prunes ""
 lappend dg_runtest_extra_prunes "warning: switch '-m(cpu|arch)=.*' conflicts with switch '-m(cpu|arch)=.*'"
 
+set saved-dg-do-what-default ${dg-do-what-default}
 set dg-do-what-default "assemble"
 
 # Initialize `dg'.
@@ -53,6 +54,8 @@ dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/general-c/*.\[cCS\]]] \
 dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cCS\]]] \
        "" $DEFAULT_CFLAGS
 
+set dg-do-what-default ${saved-dg-do-what-default}
+
 # All done.
 set dg_runtest_extra_prunes ""
 dg-finish