emit_library_call_value_1 calls emit_push_insn with NULL_TREE
for TYPE. Sometimes emit_push_insn needs to assign a temp with
that TYPE, which causes a segfault.
Fixed by computing the TYPE from MODE when needed.
Original patch by Thorsten Otto.
gcc/
2024-01-03 Thorsten Otto <ad...@tho-otto.de>
Mikael Pettersson <mikpeli...@gmail.com>
PR target/82420
PR target/111279
* expr.cc (emit_push_insn): If TYPE is NULL compute it
from MODE before calling assign_temp.
gcc/teststuite/
2024-01-03 Mikael Pettersson <mikpeli...@gmail.com>
PR target/82420
* gcc.target/m68k/pr82420.c: New test.
---
gcc/expr.cc | 6 +++++-
gcc/testsuite/gcc.target/m68k/pr82420.c | 9 +++++++++
2 files changed, 14 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.target/m68k/pr82420.c
diff --git a/gcc/expr.cc b/gcc/expr.cc
index 9fef2bf6585..7ab80ef176c 100644
--- a/gcc/expr.cc
+++ b/gcc/expr.cc
@@ -5304,7 +5304,11 @@ emit_push_insn (rtx x, machine_mode mode, tree type, rtx
size,
size = gen_int_mode (GET_MODE_SIZE (mode), Pmode);
if (!MEM_P (xinner))
{
- temp = assign_temp (type, 1, 1);
+ tree atype = type;
+
+ if (atype == NULL_TREE)
+ atype = lang_hooks.types.type_for_mode (mode, 0);
+ temp = assign_temp (atype, 1, 1);
emit_move_insn (temp, xinner);
xinner = temp;
}
diff --git a/gcc/testsuite/gcc.target/m68k/pr82420.c
b/gcc/testsuite/gcc.target/m68k/pr82420.c
new file mode 100644
index 00000000000..5c84f292103
--- /dev/null
+++ b/gcc/testsuite/gcc.target/m68k/pr82420.c
@@ -0,0 +1,9 @@
+/* { do-do compile } */
+/* { dg-options "-march=68000 -malign-int" } */
+
+int a;
+
+void f(void)
+{
+ a /= 3;
+}
--
2.43.0
