testsuite, arm: Add -mthumb to pr98931.c [PR target/98931]

This test forces -march=armv8.1-m.main, which supports only Thumb mode.
However, if the toolchain is not configured --with-thumb, the test
fails with:
error: target CPU does not support ARM mode

Adding -mthumb to dg-options fixes the problem.

2021-02-12  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/98931
	gcc/testsuite/
	* gcc.target/arm/pr98931.c: Add -mthumb

diff --git a/gcc/testsuite/gcc.target/arm/pr98931.c b/gcc/testsuite/gcc.target/arm/pr98931.c
index 313876a..66070ad 100644 (file)
--- a/gcc/testsuite/gcc.target/arm/pr98931.c
+++ b/gcc/testsuite/gcc.target/arm/pr98931.c
@@ -1,6 +1,6 @@
 /* { dg-do assemble } */
 /* { dg-skip-if "avoid conflicting multilib options" { *-*-* } { "-marm" "-mcpu=*" } } */
-/* { dg-options "-march=armv8.1-m.main -O3 --param=max-completely-peeled-insns=1300 --save-temps" } */
+/* { dg-options "-march=armv8.1-m.main -O3 --param=max-completely-peeled-insns=1300 --save-temps -mthumb" } */
 
 extern long long a[][20][26][26][22];