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Fix PR middle-end/98099

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this replaces the ICE by a sorry message for the use of reverse scalar
storage order with 128-bit decimal floating-point type on 32-bit targets.

gcc/ChangeLog:
	PR middle-end/98099
	* expmed.c (flip_storage_order): In the case of a non-integer mode,
	sorry out if the integer mode to be used instead is not supported.

gcc/testsuite/ChangeLog:
	* gcc.dg/pr98099.c: New test.
This commit is contained in:
Eric Botcazou 2020-12-03 15:54:14 +01:00
parent 5d103763b9
commit 277ff3406d
2 changed files with 14 additions and 1 deletions
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3
gcc/expmed.c
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@ -412,7 +412,8 @@ flip_storage_order (machine_mode mode, rtx x)
&& __builtin_expect (reverse_float_storage_order_supported < 0, 0))
check_reverse_float_storage_order_support ();
if (!int_mode_for_size (GET_MODE_PRECISION (mode), 0).exists (&int_mode))
if (!int_mode_for_size (GET_MODE_PRECISION (mode), 0).exists (&int_mode)
|| !targetm.scalar_mode_supported_p (int_mode))
{
sorry ("reverse storage order for %smode", GET_MODE_NAME (mode));
return x;

12
gcc/testsuite/gcc.dg/pr98099.c Normal file
View File

@ -0,0 +1,12 @@
/* PR middle-end/98099 */
/* Reported by G. Steinmetz <gscfq@t-online.de> */
/* { dg-do compile } */
/* { dg-options "-fsso-struct=big-endian" } */
struct S { _Decimal128 a; };
_Decimal128 f (struct S x)
{
return x.a; /* { dg-message "sorry, unimplemented: reverse storage order" "" { target { ! int128 } } } */
}