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i386: Fix assert in ix86_function_arg [PR105970] 

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.

(cherry picked from commit 1f8278bfcf)
This commit is contained in:
Uros Bizjak 2022-06-17 17:01:31 +02:00
parent 1c79be2d3d
commit ddc9b963ab
2 changed files with 7 additions and 1 deletions
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2
gcc/config/i386/i386.cc
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@ -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);

6
gcc/testsuite/gcc.target/i386/pr105970.c Normal file
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@ -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"