loongarch: testsuite: adapt stack-usage-1.c for LP64

LoongArch backend allocates two additional 8-byte stack slots for LP64,
one for saving $fp and another for saving the temporary value "1".
Ideally they are both unneeded, but (1) we're using -O0 so the code is
suboptimized by the nature; (2) any improvement (if possible) should be
deferred to GCC 13.  So for now simply adjust the test to make it pass.

gcc/testsuite/

	* gcc.dg/stack-usage-1.c: Adjust for LoongArch LP64.

diff --git a/gcc/testsuite/gcc.dg/stack-usage-1.c b/gcc/testsuite/gcc.dg/stack-usage-1.c
index 1d7d1fe..21cce0f 100644 (file)
--- a/gcc/testsuite/gcc.dg/stack-usage-1.c
+++ b/gcc/testsuite/gcc.dg/stack-usage-1.c
@@ -105,6 +105,8 @@
 #  define SIZE 252
 #elif defined (__CRIS__)
 #  define SIZE 252
+#elif defined (__loongarch_lp64)
+#  define SIZE 240   /* 256 - 8 bytes for $fp, and 8 bytes for a temp value */
 #else
 #  define SIZE 256
 #endif