i386: Fix assert in ix86_function_arg [PR105970]
Commit Message
The mode of pointer argument should equal ptr_mode, not Pmode.
2022-06-17 Uroš Bizjak <ubizjak@gmail.com>
gcc/ChangeLog:
PR target/105970
* config/i386/i386.cc (ix86_function_arg): Assert that
the mode of pointer argumet is equal to ptr_mode, not Pmode.
gcc/testsuite/ChangeLog:
PR target/105970
* gcc.target/i386/pr105970.c: New test.
Bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.
Pushed to master.
Uros.
@@ -3348,7 +3348,7 @@ ix86_function_arg (cumulative_args_t cum_v, const function_arg_info &arg)
if (POINTER_TYPE_P (arg.type))
{
/* This is the pointer argument. */
- gcc_assert (TYPE_MODE (arg.type) == Pmode);
+ gcc_assert (TYPE_MODE (arg.type) == ptr_mode);
/* It is at -WORD(AP) in the current frame in interrupt and
exception handlers. */
reg = plus_constant (Pmode, arg_pointer_rtx, -UNITS_PER_WORD);
new file mode 100644
@@ -0,0 +1,6 @@
+/* PR target/105970 */
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-require-effective-target maybe_x32 } */
+/* { dg-options "-mx32 -mgeneral-regs-only -maddress-mode=long" } */
+
+#include "../../gcc.dg/torture/pr68037-1.c"