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ipa/100791 - copy fntype when processing __builtin_va_arg_pack

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This missing copying exposed a type mismatch in the IL.

2021-05-28  Richard Biener  <rguenther@suse.de>

	PR ipa/100791
	* tree-inline.c (copy_bb): When processing __builtin_va_arg_pack
	copy fntype from original call.

	* gcc.dg/pr100791.c: New testcase.
This commit is contained in:
Richard Biener 2021-05-28 13:31:35 +02:00
parent 8b2b32ab2d
commit 359c0a86e2
2 changed files with 10 additions and 0 deletions
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9
gcc/testsuite/gcc.dg/pr100791.c Normal file
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@ -0,0 +1,9 @@
/* { dg-do compile } */
/* { dg-options "" } */
static inline int __attribute__((__always_inline__))
foo ()
{
return log_bad_request(0, __builtin_va_arg_pack()); /* { dg-warning "implicit" } */
}
void log_bad_request() { foo (0); } /* { dg-warning "conflicting types" } */

1
gcc/tree-inline.c
View file

@ -2100,6 +2100,7 @@ copy_bb (copy_body_data *id, basic_block bb,
GF_CALL_VA_ARG_PACK. */
gimple_call_copy_flags (new_call, call_stmt);
gimple_call_set_va_arg_pack (new_call, false);
gimple_call_set_fntype (new_call, gimple_call_fntype (call_stmt));
/* location includes block. */
gimple_set_location (new_call, gimple_location (stmt));
gimple_call_set_lhs (new_call, gimple_call_lhs (call_stmt));