Stack pointer adjustment code in prologue missed a case of no
callee-saved registers and a stack frame size bigger than 128 bytes.
Handle that case.
This fixes the following gcc tests with call0 ABI:
gcc.c-torture/execute/stdarg-2.c
gcc.dg/torture/pr55882.c
gcc.dg/torture/pr57569.c
2019-06-18 Max Filippov <jcmvb...@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_expand_prologue): Add stack
pointer adjustment for the case of no callee-saved registers and
stack frame bigger than 128 bytes.
---
gcc/config/xtensa/xtensa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index 19bd616d67f6..ee5612441e25 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -2865,7 +2865,8 @@ xtensa_expand_prologue (void)
gen_rtx_SET (mem, reg));
}
}
- if (total_size > 1024)
+ if (total_size > 1024
+ || (!callee_save_size && total_size > 128))
{
rtx tmp_reg = gen_rtx_REG (Pmode, A9_REG);
emit_move_insn (tmp_reg, GEN_INT (total_size -
--
2.11.0
