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* [Bug target/70894] ICE when using neon intrinsic with mabi=apcs-gnu
[not found] <bug-70894-4@http.gcc.gnu.org/bugzilla/>
@ 2021-12-26 9:53 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-26 9:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70894
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This specific builtin was removed in GCC 12 by r12-2848.
But here is a testcase which still ICEs on the trunk:
typedef __simd64_int8_t int8x8_t;
int8x8_t
g (signed char __a, int8x8_t __b, const int __c)
{
return (int8x8_t)__builtin_neon_vset_lanev8qi ((__builtin_neon_qi) __a, __b,
__c);
}
The problem is obvious the char (QImode) argument gets prompoted to int
(SImode) and copy_to_mode_reg is used without the change of the mode back down
to QImode.
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2021-12-26 9:53 ` [Bug target/70894] ICE when using neon intrinsic with mabi=apcs-gnu pinskia at gcc dot gnu.org
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