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* [gcc r12-8068] loongarch: testsuite: adapt stack-usage-1.c for LP64
@ 2022-04-09 11:43 Xi Ruoyao
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From: Xi Ruoyao @ 2022-04-09 11:43 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:c8f7324e81c1bb7093a5b44317af385e5774f9a3
commit r12-8068-gc8f7324e81c1bb7093a5b44317af385e5774f9a3
Author: Xi Ruoyao <xry111@mengyan1223.wang>
Date: Sat Apr 9 01:58:40 2022 +0800
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:
---
gcc/testsuite/gcc.dg/stack-usage-1.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/testsuite/gcc.dg/stack-usage-1.c b/gcc/testsuite/gcc.dg/stack-usage-1.c
index 1d7d1fee435..21cce0f440c 100644
--- 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
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