From 1f8278bfcfc7f7157bf2b405471e67dd5097636b Mon Sep 17 00:00:00 2001
From: Uros Bizjak <ubizjak@gmail.com>
Date: Fri, 17 Jun 2022 17:01:31 +0200
Subject: [PATCH] i386: Fix assert in ix86_function_arg [PR105970]
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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.
---
 gcc/config/i386/i386.cc                  | 2 +-
 gcc/testsuite/gcc.target/i386/pr105970.c | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/pr105970.c

diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc
index 3d189e124e4..f158cc3aaea 100644
--- a/gcc/config/i386/i386.cc
+++ b/gcc/config/i386/i386.cc
@@ -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);
diff --git a/gcc/testsuite/gcc.target/i386/pr105970.c b/gcc/testsuite/gcc.target/i386/pr105970.c
new file mode 100644
index 00000000000..326486faebf
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr105970.c
@@ -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"